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NV5 Global, Inc. – ‘10-Q’ for 6/27/20 – ‘EX-101.LAB’

On:  Thursday, 8/6/20, at 11:37am ET   ·   For:  6/27/20   ·   Accession #:  1628280-20-11917   ·   File #:  1-35849

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 8/06/20  NV5 Global, Inc.                  10-Q        6/27/20   81:9.4M                                   Workiva Inc Wde… FA01/FA

Quarterly Report   —   Form 10-Q
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   1.12M 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     28K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     28K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     25K 
11: R1          Cover Page                                          HTML     76K 
12: R2          Consolidated Balance Sheets (Unaudited)             HTML    112K 
13: R3          Consolidated Balance Sheets (Unaudited)             HTML     39K 
                (Parentheticals)                                                 
14: R4          Consolidated Statements of Net Income and           HTML     97K 
                Comprehensive Income (Unaudited)                                 
15: R5          Consolidated Statements of Changes in               HTML     71K 
                Stockholders' Equity (Unaudited)                                 
16: R6          Consolidated Statements of Cash Flows (Unaudited)   HTML    115K 
17: R7          Organization and Nature of Business Operations      HTML     35K 
18: R8          Summary of Significant Accounting Policies          HTML     39K 
19: R9          Earnings Per Share                                  HTML     50K 
20: R10         Business Acquisitions                               HTML    104K 
21: R11         Billed and Unbilled Receivables                     HTML     36K 
22: R12         Property and Equipment, net                         HTML     38K 
23: R13         Goodwill and Intangible Assets                      HTML     96K 
24: R14         Accrued Liabilities                                 HTML     36K 
25: R15         Notes Payable and Other Obligations                 HTML     82K 
26: R16         Contingent Consideration                            HTML     36K 
27: R17         Commitments and Contingencies                       HTML     25K 
28: R18         Stock-Based Compensation                            HTML     37K 
29: R19         Income Taxes                                        HTML     29K 
30: R20         Reportable Segments                                 HTML    238K 
31: R21         Leases                                              HTML    237K 
32: R22         Subsequent Events Subsequent Events                 HTML     26K 
33: R23         Summary of Significant Accounting Policies          HTML     44K 
                (Policies)                                                       
34: R24         Earnings Per Share (Tables)                         HTML     47K 
35: R25         Business Acquisitions (Tables)                      HTML     91K 
36: R26         Billed and Unbilled Receivables (Tables)            HTML     36K 
37: R27         Property and Equipment, net (Tables)                HTML     36K 
38: R28         Goodwill and Intangible Assets (Tables)             HTML     91K 
39: R29         Accrued Liabilities (Tables)                        HTML     36K 
40: R30         Notes Payable and Other Obligations (Tables)        HTML     46K 
41: R31         Contingent Consideration (Tables)                   HTML     36K 
42: R32         Stock-Based Compensation (Tables)                   HTML     33K 
43: R33         Reportable Segments (Tables)                        HTML    239K 
44: R34         Leases (Tables)                                     HTML    154K 
45: R35         Summary of Significant Accounting Policies -        HTML     30K 
                Revenue Recognition (Details)                                    
46: R36         Summary of Significant Accounting Policies -        HTML     27K 
                Leases (Details)                                                 
47: R37         Earnings Per Share - Narrative (Details)            HTML     27K 
48: R38         Earnings Per Share - Schedule of Earnings Per       HTML     43K 
                Share, Basic and Diluted (Details)                               
49: R39         Business Acquisitions - Narrative (Details)         HTML    119K 
50: R40         Business Acquisitions - Summary of the fair values  HTML     91K 
                of assets acquired and liabilities assumed                       
                (Details)                                                        
51: R41         Business Acquisitions - Results of operations from  HTML     26K 
                any business acquired (Details)                                  
52: R42         Business Acquisitions - Pro forma consolidated      HTML     31K 
                results of operations (Details)                                  
53: R43         Billed and Unbilled Receivables (Details)           HTML     37K 
54: R44         Property and Equipment, net (Details)               HTML     39K 
55: R45         Property and Equipment, net - Narrative (Details)   HTML     27K 
56: R46         Goodwill and Intangible Assets - Schedule of        HTML     34K 
                Goodwill (Details)                                               
57: R47         Goodwill and Intangible Assets (Details)            HTML     59K 
58: R48         Goodwill and Intangible Assets - Schedule of        HTML     66K 
                Finite-Lived Intangible Assets (Details)                         
59: R49         Accrued Liabilities (Details)                       HTML     41K 
60: R50         Notes Payable and Other Obligations - Summary of    HTML     42K 
                notes payable and other obligations (Details)                    
61: R51         Notes Payable and Other Obligations - Narrative     HTML    261K 
                (Details)                                                        
62: R52         Notes Payable and Other Obligations Notes Payable   HTML     35K 
                and Other Obligations - Schedule of Consolidated                 
                Leverage Ratio (Details) (Details)                               
63: R53         Contingent Consideration (Details)                  HTML     36K 
64: R54         Stock-Based Compensation - Narrative (Details)      HTML     47K 
65: R55         Stock-Based Compensation - Restricted Stock Awards  HTML     46K 
                (Details)                                                        
66: R56         Income Taxes (Details)                              HTML     26K 
67: R57         Reportable Segments - Narrative (Details)           HTML     27K 
68: R58         Reportable Segments - Summarized Financial          HTML     59K 
                Information (Details)                                            
69: R59         Reportable Segments - Revenue from contracts with   HTML     47K 
                customers by geographic location (Details)                       
70: R60         Reportable Segments - Revenue by Customer Type      HTML     47K 
                (Details)                                                        
71: R61         Reportable Segments - Revenue by Contract Type      HTML     47K 
                (Details)                                                        
72: R62         Leases - Schedule of supplemental balance sheet     HTML     59K 
                information (Details)                                            
73: R63         Leases - Schedule of lease term and discount rate   HTML     33K 
                (Details)                                                        
74: R64         Leases - Schedule of supplemental cash flow         HTML     31K 
                information (Details)                                            
75: R65         Leases - Schedule of lease cost (Details)           HTML     38K 
76: R66         Leases - Schedule of maturities of lease            HTML     62K 
                liabilities (Details)                                            
77: R67         Subsequent Events (Details)                         HTML     48K 
79: XML         IDEA XML File -- Filing Summary                      XML    146K 
10: XML         XBRL Instance -- nvee-2020x06x27x10q_htm             XML   2.87M 
78: EXCEL       IDEA Workbook of Financial Reports                  XLSX    100K 
 6: EX-101.CAL  XBRL Calculations -- nvee-20200627_cal               XML    256K 
 7: EX-101.DEF  XBRL Definitions -- nvee-20200627_def                XML    497K 
 8: EX-101.LAB  XBRL Labels -- nvee-20200627_lab                     XML   1.50M 
 9: EX-101.PRE  XBRL Presentations -- nvee-20200627_pre              XML    890K 
 5: EX-101.SCH  XBRL Schema -- nvee-20200627                         XSD    169K 
80: JSON        XBRL Instance as JSON Data -- MetaLinks              352±   502K 
81: ZIP         XBRL Zipped Folder -- 0001628280-20-011917-xbrl      Zip    249K 


‘EX-101.LAB’   —   XBRL Labels — nvee-20200627_lab


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
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<link:label id="lab_us-gaap_NumberOfOperatingSegments_7C2045B4A3D033EC7D266C5F1620F988_label_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments_7C2045B4A3D033EC7D266C5F1620F988" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Number of Operating Segments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_7C2045B4A3D033EC7D266C5F1620F988" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization expense </link:label>
<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9_label_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Intangible Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9" xlink:to="lab_us-gaap_AmortizationOfIntangibleAssets_51C4D26A9F6E3E8455306C5F1621E3C9" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AB0ABDEF06F38AC4EE3B6C5F15D9E367_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AB0ABDEF06F38AC4EE3B6C5F15D9E367" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue by Major Customers, by Reporting Segments [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AB0ABDEF06F38AC4EE3B6C5F15D9E367_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AB0ABDEF06F38AC4EE3B6C5F15D9E367" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue by Major Customers, by Reporting Segments [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AB0ABDEF06F38AC4EE3B6C5F15D9E367" xlink:type="locator"/>
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<link:label id="lab_srt_MajorCustomersAxis_815F18A51A5FC77F13536C5F15D90DC9_label_en-US" xlink:label="lab_srt_MajorCustomersAxis_815F18A51A5FC77F13536C5F15D90DC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_815F18A51A5FC77F13536C5F15D90DC9" xlink:type="locator"/>
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<link:label id="lab_srt_NameOfMajorCustomerDomain_AE735C48B41CCF8B2C656C5F15D9AF01_terseLabel_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain_AE735C48B41CCF8B2C656C5F15D9AF01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customer [Domain] </link:label>
<link:label id="lab_srt_NameOfMajorCustomerDomain_AE735C48B41CCF8B2C656C5F15D9AF01_label_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain_AE735C48B41CCF8B2C656C5F15D9AF01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Customer [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srt_NameOfMajorCustomerDomain_AE735C48B41CCF8B2C656C5F15D9AF01" xlink:type="locator"/>
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<link:label id="lab_nvee_PublicAndQuasipublicSectorMember_F8928DE3E0188CF43B6C6C5F15DA7C7B_terseLabel_en-US" xlink:label="lab_nvee_PublicAndQuasipublicSectorMember_F8928DE3E0188CF43B6C6C5F15DA7C7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Public and quasi-public sector </link:label>
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<link:label id="lab_nvee_PublicAndQuasipublicSectorMember_F8928DE3E0188CF43B6C6C5F15DA7C7B_documentation_en-US" xlink:label="lab_nvee_PublicAndQuasipublicSectorMember_F8928DE3E0188CF43B6C6C5F15DA7C7B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Information related to the public and quasi public sector. </link:label>
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<link:label id="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A_terseLabel_en-US" xlink:label="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Private sector </link:label>
<link:label id="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A_label_en-US" xlink:label="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Private Sector [Member] </link:label>
<link:label id="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A_documentation_en-US" xlink:label="lab_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Information related to the private sector. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_PrivateSectorMember" xlink:label="loc_nvee_PrivateSectorMember_0208F1886F49D565467F6C5F15DAFE4A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_0042911FD57016D6BE6B6C5F15DA9A88_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_0042911FD57016D6BE6B6C5F15DA9A88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segments [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_0042911FD57016D6BE6B6C5F15DA9A88" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segments [Domain] </link:label>
<link:label id="lab_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17_label_en-US" xlink:label="lab_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segments [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17" xlink:to="lab_us-gaap_SegmentDomain_0F9850323D3FE5D7759F6C5F15DA7D17" xlink:type="arc"/>
<link:label id="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2_terseLabel_en-US" xlink:label="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> INF </link:label>
<link:label id="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2_label_en-US" xlink:label="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> INF [Member] </link:label>
<link:label id="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2_documentation_en-US" xlink:label="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the operating and reportable segment Infrastructure (INF), which includes engineering, civil program management, and construction quality assurance practices. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_INFMember" xlink:label="loc_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:to="lab_nvee_INFMember_8E713E4A0FAF515BDA656C5F15DBEAD2" xlink:type="arc"/>
<link:label id="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53_terseLabel_en-US" xlink:label="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> BTS </link:label>
<link:label id="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53_label_en-US" xlink:label="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> BTS [Member] </link:label>
<link:label id="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53_documentation_en-US" xlink:label="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the operating and reportable segment Buildings, Energy & Science (BES), which includes energy and environmental practices as well as buildings program management. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BTSMember" xlink:label="loc_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:to="lab_nvee_BTSMember_DB4D87B158950181BDB56C5F15DB0B53" xlink:type="arc"/>
<link:label id="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97_terseLabel_en-US" xlink:label="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> GEO </link:label>
<link:label id="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97_label_en-US" xlink:label="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> GEO [Member] </link:label>
<link:label id="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97_documentation_en-US" xlink:label="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> GEO [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_GEOMember" xlink:label="loc_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:to="lab_nvee_GEOMember_0693A5B379B3B40C9AAC6C5F15DB6F97" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_CEE7BF7126A1C98AE3316C5F15DBB9D9_verboseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_CEE7BF7126A1C98AE3316C5F15DBB9D9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Segment Reporting, Revenue Reconciling Item [Line Items] </link:label>
<link:label id="lab_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_CEE7BF7126A1C98AE3316C5F15DBB9D9_label_en-US" xlink:label="lab_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_CEE7BF7126A1C98AE3316C5F15DBB9D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting, Revenue Reconciling Item [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingRevenueReconcilingItemLineItems" xlink:label="loc_us-gaap_SegmentReportingRevenueReconcilingItemLineItems_CEE7BF7126A1C98AE3316C5F15DBB9D9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CB89F81767B503BFB8236C5F15DB1124_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CB89F81767B503BFB8236C5F15DB1124" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gross revenues </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CB89F81767B503BFB8236C5F15DB1124_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CB89F81767B503BFB8236C5F15DB1124" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer, Including Assessed Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_CB89F81767B503BFB8236C5F15DB1124" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_F8C01ADA6377A3278267BF8CA8012505_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract_F8C01ADA6377A3278267BF8CA8012505" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Stockholders' Equity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_F8C01ADA6377A3278267BF8CA8012505" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:label id="lab_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C_label_en-US" xlink:label="lab_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C" xlink:to="lab_us-gaap_StatementTable_06E6EE92BB7EB51E1D1EBF8CA801823C" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Components [Axis] </link:label>
<link:label id="lab_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Components [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1" xlink:to="lab_us-gaap_StatementEquityComponentsAxis_76BEE9F5EA15EB24930EBF8CA80231B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Component [Domain] </link:label>
<link:label id="lab_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Component [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798" xlink:to="lab_us-gaap_EquityComponentDomain_E1AFCD01F5794D9E2B76BF8CA802B798" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Common Stock </link:label>
<link:label id="lab_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719_label_en-US" xlink:label="lab_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719" xlink:to="lab_us-gaap_CommonStockMember_7C992C99C2D455BD83AABF8CA8028719" xlink:type="arc"/>
<link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_D5AD8B5D48563DAFAD77BF8CA8024CC9_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_D5AD8B5D48563DAFAD77BF8CA8024CC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Additional Paid-In Capital </link:label>
<link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_D5AD8B5D48563DAFAD77BF8CA8024CC9_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_D5AD8B5D48563DAFAD77BF8CA8024CC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Additional Paid-in Capital [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_D5AD8B5D48563DAFAD77BF8CA8024CC9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RetainedEarningsMember_795BFA3054D53789547DBF8CA803E149_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_795BFA3054D53789547DBF8CA803E149" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retained Earnings </link:label>
<link:label id="lab_us-gaap_RetainedEarningsMember_795BFA3054D53789547DBF8CA803E149_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_795BFA3054D53789547DBF8CA803E149" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_795BFA3054D53789547DBF8CA803E149" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementLineItems_B1087D386281E7E7166CBF8CA8032128_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_B1087D386281E7E7166CBF8CA8032128" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:label id="lab_us-gaap_StatementLineItems_B1087D386281E7E7166CBF8CA8032128_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_B1087D386281E7E7166CBF8CA8032128" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_B1087D386281E7E7166CBF8CA8032128" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_E9D289729C352DDF804DBF8CA803BCED_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_E9D289729C352DDF804DBF8CA803BCED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Stockholders' Equity [Roll Forward] </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_E9D289729C352DDF804DBF8CA803BCED_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_E9D289729C352DDF804DBF8CA803BCED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Stockholders' Equity [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_E9D289729C352DDF804DBF8CA803BCED" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SharesOutstanding_28DADA28C0D7B93EFC22BF8CA8034B43_periodStartLabel_en-US" xlink:label="lab_us-gaap_SharesOutstanding_28DADA28C0D7B93EFC22BF8CA8034B43" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance (in shares) </link:label>
<link:label id="lab_us-gaap_SharesOutstanding_28DADA28C0D7B93EFC22BF8CA8034B43_label_en-US" xlink:label="lab_us-gaap_SharesOutstanding_28DADA28C0D7B93EFC22BF8CA8034B43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Shares, Outstanding </link:label>
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<link:label id="lab_us-gaap_StockholdersEquity_BCF53A41B1E2B4DAC4BCBF8CA804435F_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_BCF53A41B1E2B4DAC4BCBF8CA804435F" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning Balance </link:label>
<link:label id="lab_us-gaap_StockholdersEquity_BCF53A41B1E2B4DAC4BCBF8CA804435F_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity_BCF53A41B1E2B4DAC4BCBF8CA804435F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent </link:label>
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<link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_58197A194C074BDCB99CBF8CA8048A41_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_58197A194C074BDCB99CBF8CA8048A41" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> APIC, Share-based Payment Arrangement, Increase for Cost Recognition </link:label>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_10974E13868CA14E15A0BF8CA804548D_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_10974E13868CA14E15A0BF8CA804548D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted stock issuance, net </link:label>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_5C10E1F1997D1CDD797DBF8CA804352C_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_5C10E1F1997D1CDD797DBF8CA804352C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Shares, Acquisitions </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_5C10E1F1997D1CDD797DBF8CA804352C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_8DF4ACBF2966C934F7E6BF8CA804325E_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_8DF4ACBF2966C934F7E6BF8CA804325E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issuance for acquisitions </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_8DF4ACBF2966C934F7E6BF8CA804325E_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_8DF4ACBF2966C934F7E6BF8CA804325E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, Acquisitions </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_8DF4ACBF2966C934F7E6BF8CA804325E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesOther_CDB6463CC69FFC466871BF8CA8044174_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesOther_CDB6463CC69FFC466871BF8CA8044174" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from secondary offering, net of costs (in shares) </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesOther_CDB6463CC69FFC466871BF8CA8044174_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesOther_CDB6463CC69FFC466871BF8CA8044174" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Shares, Other </link:label>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueOther_59D494A640E0AF3A2728BF8CA805B1D3_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueOther_59D494A640E0AF3A2728BF8CA805B1D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payment of contingent consideration with common stock </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueOther_59D494A640E0AF3A2728BF8CA805B1D3_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueOther_59D494A640E0AF3A2728BF8CA805B1D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued During Period, Value, Other </link:label>
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<link:label id="lab_us-gaap_NetIncomeLoss_6115EA38559002039178BF8CA80595A1_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_6115EA38559002039178BF8CA80595A1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Net income </link:label>
<link:label id="lab_us-gaap_NetIncomeLoss_6115EA38559002039178BF8CA80595A1_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_6115EA38559002039178BF8CA80595A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Parent </link:label>
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<link:label id="lab_us-gaap_SharesOutstanding_3ADBFED83FA844813D19BF8CA8051B89_periodEndLabel_en-US" xlink:label="lab_us-gaap_SharesOutstanding_3ADBFED83FA844813D19BF8CA8051B89" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending Balance (in shares) </link:label>
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<link:label id="lab_srt_ConsolidationItemsAxis_8CD3F863AE93575A50BF7162F033F2CB_terseLabel_en-US" xlink:label="lab_srt_ConsolidationItemsAxis_8CD3F863AE93575A50BF7162F033F2CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Consolidation Items [Axis] </link:label>
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<link:label id="lab_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill [Roll Forward] </link:label>
<link:label id="lab_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5_label_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5" xlink:to="lab_us-gaap_GoodwillRollForward_F495F32C29766A2684E96C5F15C561E5" xlink:type="arc"/>
<link:label id="lab_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260_periodStartLabel_en-US" xlink:label="lab_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning balance </link:label>
<link:label id="lab_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260_label_en-US" xlink:label="lab_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260" xlink:to="lab_us-gaap_Goodwill_C0DADC548E22EF90309E6C5F15C50260" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Adjustments </link:label>
<link:label id="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7_label_en-US" xlink:label="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Purchase Accounting Adjustments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:label="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7" xlink:to="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_737C54EA07E6760AAE466C5F15C6A1C7" xlink:type="arc"/>
<link:label id="lab_us-gaap_Goodwill_1E9C0C3D5FEFF3674FD16C5F15C6813B_periodEndLabel_en-US" xlink:label="lab_us-gaap_Goodwill_1E9C0C3D5FEFF3674FD16C5F15C6813B" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending balance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_1E9C0C3D5FEFF3674FD16C5F15C6813B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_1E9C0C3D5FEFF3674FD16C5F15C6813B" xlink:to="lab_us-gaap_Goodwill_1E9C0C3D5FEFF3674FD16C5F15C6813B" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationsAbstract_4A73E75C9749339A66BF6C5F15680648_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationsAbstract_4A73E75C9749339A66BF6C5F15680648" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combinations [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_4A73E75C9749339A66BF6C5F15680648" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_4A73E75C9749339A66BF6C5F15680648" xlink:to="lab_us-gaap_BusinessCombinationsAbstract_4A73E75C9749339A66BF6C5F15680648" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gross revenues </link:label>
<link:label id="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440" xlink:to="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_999F414CF077A90306706C5F15692440" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3_terseLabel_en-US" xlink:label="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income before income taxes </link:label>
<link:label id="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3_label_en-US" xlink:label="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual </link:label>
<link:label id="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> This element represents the amount of income before income taxes of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:to="lab_nvee_BusinessCombinationProFormaInformationIncomeBeforeIncomeTaxesOfAcquireeSinceAcquisitionDateActual_45236FF1F561E328D42A6C5F1569A4F3" xlink:type="arc"/>
<link:label id="lab_us-gaap_PayablesAndAccrualsAbstract_FC357F3D631D7631DBDD6C5F166E3F11_label_en-US" xlink:label="lab_us-gaap_PayablesAndAccrualsAbstract_FC357F3D631D7631DBDD6C5F166E3F11" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payables and Accruals [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_us-gaap_PayablesAndAccrualsAbstract_FC357F3D631D7631DBDD6C5F166E3F11" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_FC357F3D631D7631DBDD6C5F166E3F11" xlink:to="lab_us-gaap_PayablesAndAccrualsAbstract_FC357F3D631D7631DBDD6C5F166E3F11" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of lease liability </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28" xlink:to="lab_us-gaap_OperatingLeaseLiabilityCurrent_6FE1C2665916D3C517EC6C5F166EDA28" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued vacation </link:label>
<link:label id="lab_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031_label_en-US" xlink:label="lab_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Vacation, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedVacationCurrent" xlink:label="loc_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031" xlink:to="lab_us-gaap_AccruedVacationCurrent_5741F11329B03F9C0F3B6C5F166F0031" xlink:type="arc"/>
<link:label id="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D_terseLabel_en-US" xlink:label="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payroll and related taxes </link:label>
<link:label id="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D_label_en-US" xlink:label="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payroll and related taxes </link:label>
<link:label id="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D_documentation_en-US" xlink:label="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Carrying value as of the balance sheet date of obligations incurred and payable for payroll and statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_AccruedPayrollAndPayrollTaxesCurrent" xlink:label="loc_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:to="lab_nvee_AccruedPayrollAndPayrollTaxesCurrent_2249894880B340DCE7B36C5F166FCD3D" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Benefits </link:label>
<link:label id="lab_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6_label_en-US" xlink:label="lab_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Employee Benefits, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedEmployeeBenefitsCurrent" xlink:label="loc_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6" xlink:to="lab_us-gaap_AccruedEmployeeBenefitsCurrent_B1B850C9A227B6000CB66C5F166F29C6" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unrecognized tax benefits </link:label>
<link:label id="lab_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322_label_en-US" xlink:label="lab_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liability for Uncertainty in Income Taxes, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilityForUncertainTaxPositionsCurrent" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322" xlink:to="lab_us-gaap_LiabilityForUncertainTaxPositionsCurrent_21A13476578B26FBA8756C5F166FF322" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Professional liability reserve </link:label>
<link:label id="lab_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54_label_en-US" xlink:label="lab_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Professional Fees, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54" xlink:to="lab_us-gaap_AccruedProfessionalFeesCurrent_50CF42ED810D2CE810336C5F166F7A54" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124_label_en-US" xlink:label="lab_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Accrued Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124" xlink:to="lab_us-gaap_OtherAccruedLiabilitiesCurrent_CF972B663D31903731F26C5F166FC124" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5_totalLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities, Current </link:label>
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<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent_356B239311FE6981E59D6C5F1670D2A5" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_763FEB38F30DE41C16366C5F1601C1DF_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_763FEB38F30DE41C16366C5F1601C1DF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_763FEB38F30DE41C16366C5F1601C1DF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_82A86505B87AD1AE66D06C5F16016B4A_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_82A86505B87AD1AE66D06C5F16016B4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_82A86505B87AD1AE66D06C5F16016B4A_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_82A86505B87AD1AE66D06C5F16016B4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_SubsequentEventsAbstract_2616D8082889A12C6230C3E7D7FF8BFF_label_en-US" xlink:label="lab_us-gaap_SubsequentEventsAbstract_2616D8082889A12C6230C3E7D7FF8BFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Events [Abstract] </link:label>
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<link:label id="lab_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Subsequent Event [Table] </link:label>
<link:label id="lab_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Event [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D" xlink:to="lab_us-gaap_SubsequentEventTable_D9F53462B66EBE5BE4AEC3E7D801E30D" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessAcquisitionAxis_EB0CA949CB8CC95512A7C3E7D8025F70_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_EB0CA949CB8CC95512A7C3E7D8025F70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Axis] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionAxis_EB0CA949CB8CC95512A7C3E7D8025F70_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_EB0CA949CB8CC95512A7C3E7D8025F70" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_EB0CA949CB8CC95512A7C3E7D8025F70" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_70D2AFDC254A14349D89C3E7D80228E8_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_70D2AFDC254A14349D89C3E7D80228E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_70D2AFDC254A14349D89C3E7D80228E8_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_70D2AFDC254A14349D89C3E7D80228E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_70D2AFDC254A14349D89C3E7D80228E8" xlink:type="locator"/>
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<link:label id="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F_terseLabel_en-US" xlink:label="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Mediatech Design Group </link:label>
<link:label id="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F_label_en-US" xlink:label="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Mediatech Design Group [Member] </link:label>
<link:label id="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F_documentation_en-US" xlink:label="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Mediatech Design Group [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_MediatechDesignGroupMember" xlink:label="loc_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:to="lab_nvee_MediatechDesignGroupMember_1F373918435A7A9A339BC3E7D802815F" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentAxis_7DBD328A35663CC06E5EC3E7D8035DF5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_7DBD328A35663CC06E5EC3E7D8035DF5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentAxis_7DBD328A35663CC06E5EC3E7D8035DF5_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_7DBD328A35663CC06E5EC3E7D8035DF5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_7DBD328A35663CC06E5EC3E7D8035DF5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentNameDomain_423E0E72B2AC09ED4C33C3E7D80360E4_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_423E0E72B2AC09ED4C33C3E7D80360E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentNameDomain_423E0E72B2AC09ED4C33C3E7D80360E4_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_423E0E72B2AC09ED4C33C3E7D80360E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
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<link:label id="lab_nvee_UncollateralizedPromissoryNoteMember_5C645F9F3E3D47BC3A4AC3E7D8039F5D_verboseLabel_en-US" xlink:label="lab_nvee_UncollateralizedPromissoryNoteMember_5C645F9F3E3D47BC3A4AC3E7D8039F5D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Uncollateralized promissory notes </link:label>
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<link:label id="lab_srt_StatementScenarioAxis_4A3A46FE5FAD106BEDF7C3E7D804068A_terseLabel_en-US" xlink:label="lab_srt_StatementScenarioAxis_4A3A46FE5FAD106BEDF7C3E7D804068A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Scenario [Axis] </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_0B1FDBFDF79CA3F7C296C3E7D80562A2_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_0B1FDBFDF79CA3F7C296C3E7D80562A2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Total consideration </link:label>
<link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_0B1FDBFDF79CA3F7C296C3E7D80562A2_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_0B1FDBFDF79CA3F7C296C3E7D80562A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Consideration Transferred </link:label>
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<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_CAB17D9C29F153F5673DC3E7D805D106_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross_CAB17D9C29F153F5673DC3E7D805D106" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payments to acquire businesses </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_CAB17D9C29F153F5673DC3E7D805D106_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross_CAB17D9C29F153F5673DC3E7D805D106" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Businesses, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_CAB17D9C29F153F5673DC3E7D805D106" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_D74CBDE4A2FD4C90487FC3E7D805B452_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_D74CBDE4A2FD4C90487FC3E7D805B452" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Promissory note incurred </link:label>
<link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_D74CBDE4A2FD4C90487FC3E7D805B452_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_D74CBDE4A2FD4C90487FC3E7D805B452" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Consideration Transferred, Liabilities Incurred </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_D74CBDE4A2FD4C90487FC3E7D805B452" xlink:type="locator"/>
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<link:label id="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC_verboseLabel_en-US" xlink:label="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Number of installments </link:label>
<link:label id="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC_label_en-US" xlink:label="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_Business Combination, Consideration Transferred Liabilities Incurred, Number Of Equal Installments </link:label>
<link:label id="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC_documentation_en-US" xlink:label="lab_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The number of equal installment payments required for liabilities incurred by the acquirer as part of consideration transferred in a business combination. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments" xlink:label="loc_nvee_Nvee_BusinessCombinationConsiderationTransferredLiabilitiesIncurredNumberOfEqualInstallments_0597D346EB29F54562ACC3E7D80507FC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Periodic payment </link:label>
<link:label id="lab_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Periodic Payment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5" xlink:to="lab_us-gaap_DebtInstrumentPeriodicPayment_A6322E3EE029591EC7AFC3E7D8052FE5" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase price </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Equity Interest Issued or Issuable, Value Assigned </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8" xlink:to="lab_us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned_AD2253500187458957A3C3E7D806E7F8" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2_terseLabel_en-US" xlink:label="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock value assigned at closing and anniversary dates </link:label>
<link:label id="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2_label_en-US" xlink:label="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Equity Interest Issued or Issuable, Value Assigned At Closing </link:label>
<link:label id="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2_documentation_en-US" xlink:label="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Equity Interest Issued or Issuable, Value Assigned At Closing </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing" xlink:label="loc_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:to="lab_nvee_BusinessAcquisitionEquityInterestIssuedorIssuableValueAssignedAtClosing_864DBF239AE42A55627EC3E7D806F9B2" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Earn-out of cash fair value </link:label>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C" xlink:to="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_3B86257CCED0F49211DFC3E7D806BE7C" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Billed receivables </link:label>
<link:label id="lab_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, before Allowance for Credit Loss </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableGross" xlink:label="loc_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7" xlink:to="lab_us-gaap_AccountsReceivableGross_BC151D998E129444BB046C5F15E30CD7" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252_negatedLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Less: allowance for doubtful accounts </link:label>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_839C2527918FA7CDF7F46C5F15E39252" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3_totalLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Billed receivables, net </link:label>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent_E8AD9F2111BED0364C736C5F15E303D3" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unbilled receivables </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Asset, before Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetGrossCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE" xlink:to="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A9DA6BB34C7AB2F6A8886C5F15E4F3EE" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863_negatedLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Less: allowance for doubtful accounts </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Asset, Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863" xlink:to="lab_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent_C17345580F8A893422046C5F15E40863" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5_totalLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Unbilled receivables, net </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Asset, after Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5" xlink:to="lab_us-gaap_ContractWithCustomerAssetNetCurrent_C4AEC987BCB2E060D1AD6C5F15E4DCA5" xlink:type="arc"/>
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<link:label id="lab_dei_EntityAddressCityOrTown_8D7FC3C99B5FD0797D9E6C5F1583363B_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_8D7FC3C99B5FD0797D9E6C5F1583363B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label>
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<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown_8D7FC3C99B5FD0797D9E6C5F1583363B" xlink:to="lab_dei_EntityAddressCityOrTown_8D7FC3C99B5FD0797D9E6C5F1583363B" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:label id="lab_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788" xlink:to="lab_dei_EntityAddressStateOrProvince_94E3AA21AE78500452F66C5F15833788" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:label id="lab_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145" xlink:to="lab_dei_EntityAddressPostalZipCode_1E34C9171E6E55928B4F6C5F1583B145" xlink:type="arc"/>
<link:label id="lab_dei_CityAreaCode_22476464EC54779774586C5F1583D25B_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode_22476464EC54779774586C5F1583D25B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:label id="lab_dei_CityAreaCode_22476464EC54779774586C5F1583D25B_label_en-US" xlink:label="lab_dei_CityAreaCode_22476464EC54779774586C5F1583D25B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_22476464EC54779774586C5F1583D25B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode_22476464EC54779774586C5F1583D25B" xlink:to="lab_dei_CityAreaCode_22476464EC54779774586C5F1583D25B" xlink:type="arc"/>
<link:label id="lab_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:label id="lab_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8_label_en-US" xlink:label="lab_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8" xlink:to="lab_dei_LocalPhoneNumber_C4FAA003325F201416E36C5F1584FEA8" xlink:type="arc"/>
<link:label id="lab_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Title of 12(b) Security </link:label>
<link:label id="lab_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324_label_en-US" xlink:label="lab_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Title of 12(b) Security </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324" xlink:to="lab_dei_Security12bTitle_100ECCF1EB41D26F071E6C5F15841324" xlink:type="arc"/>
<link:label id="lab_dei_TradingSymbol_E62D69B001D389F537456C5F15844178_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol_E62D69B001D389F537456C5F15844178" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Trading Symbol </link:label>
<link:label id="lab_dei_TradingSymbol_E62D69B001D389F537456C5F15844178_label_en-US" xlink:label="lab_dei_TradingSymbol_E62D69B001D389F537456C5F15844178" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Trading Symbol </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_E62D69B001D389F537456C5F15844178" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol_E62D69B001D389F537456C5F15844178" xlink:to="lab_dei_TradingSymbol_E62D69B001D389F537456C5F15844178" xlink:type="arc"/>
<link:label id="lab_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:label id="lab_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066_label_en-US" xlink:label="lab_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066" xlink:to="lab_dei_SecurityExchangeName_2A2C6684F422F7327F8C6C5F1584F066" xlink:type="arc"/>
<link:label id="lab_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:label id="lab_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898" xlink:to="lab_dei_EntityCurrentReportingStatus_DFAE602842FFE314D1696C5F15843898" xlink:type="arc"/>
<link:label id="lab_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label>
<link:label id="lab_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1" xlink:to="lab_dei_EntityInteractiveDataCurrent_82A02305109F661E992E6C5F15853CF1" xlink:type="arc"/>
<link:label id="lab_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:label id="lab_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE_label_en-US" xlink:label="lab_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE" xlink:to="lab_dei_EntityFilerCategory_A549341FC83FE61150E06C5F15852BFE" xlink:type="arc"/>
<link:label id="lab_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label>
<link:label id="lab_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4" xlink:to="lab_dei_EntityEmergingGrowthCompany_EC450C3210FC44E2856C6C5F1585D1D4" xlink:type="arc"/>
<link:label id="lab_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label>
<link:label id="lab_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A_label_en-US" xlink:label="lab_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A" xlink:to="lab_dei_EntitySmallBusiness_BF784ED527B5DE83A9D76C5F1585436A" xlink:type="arc"/>
<link:label id="lab_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Shell Company </link:label>
<link:label id="lab_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D_label_en-US" xlink:label="lab_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Shell Company </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D" xlink:to="lab_dei_EntityShellCompany_5A83C7EA1F243E7343F16C5F1585308D" xlink:type="arc"/>
<link:label id="lab_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:label id="lab_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63" xlink:to="lab_dei_EntityCommonStockSharesOutstanding_D95E0D69FA99354B76D86C5F15853B63" xlink:type="arc"/>
<link:label id="lab_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label>
<link:label id="lab_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34" xlink:to="lab_dei_EntityCentralIndexKey_DBDF82920713559725C26C5F15869C34" xlink:type="arc"/>
<link:label id="lab_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label>
<link:label id="lab_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55" xlink:to="lab_dei_CurrentFiscalYearEndDate_65DC9E00DFFE1486A08A6C5F15864E55" xlink:type="arc"/>
<link:label id="lab_dei_DocumentFiscalYearFocus_56164163080C476AF5BA6C5F15860105_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_56164163080C476AF5BA6C5F15860105" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Fiscal Year Focus </link:label>
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<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_024D188FCBA8BD47F16E6C5F15F0700D" xlink:to="lab_us-gaap_BusinessCombinationConsiderationTransferred1_024D188FCBA8BD47F16E6C5F15F0700D" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Excess consideration over the amounts assigned to the net assets acquired (Goodwill) </link:label>
<link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8FB893C7590FF8BB962B6C5F15F00331" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C" xlink:to="lab_us-gaap_DebtInstrumentTable_CD4E621F05BA4EB851B69BF652FED39C" xlink:type="arc"/>
<link:label id="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE_terseLabel_en-US" xlink:label="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Senior credit facility </link:label>
<link:label id="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE_label_en-US" xlink:label="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Senior Credit Facility [Member] </link:label>
<link:label id="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE_documentation_en-US" xlink:label="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the senior credit facility debt instrument. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_SeniorCreditFacilityMember" xlink:label="loc_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:to="lab_nvee_SeniorCreditFacilityMember_BBFA514E2DC0FDCEED5E9BF652FFD0DE" xlink:type="arc"/>
<link:label id="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D_terseLabel_en-US" xlink:label="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> AR Credit Agreement </link:label>
<link:label id="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D_label_en-US" xlink:label="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> AR Credit Agreement [Member] </link:label>
<link:label id="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D_documentation_en-US" xlink:label="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> AR Credit Agreement [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_ARCreditAgreementMember" xlink:label="loc_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:to="lab_nvee_ARCreditAgreementMember_E859E1E9441CC3D472429BF652FFBC1D" xlink:type="arc"/>
<link:label id="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3_terseLabel_en-US" xlink:label="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> GeoDesign, Inc </link:label>
<link:label id="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3_label_en-US" xlink:label="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> GeoDesign, Inc [Member] </link:label>
<link:label id="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3_documentation_en-US" xlink:label="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> GeoDesign, Inc [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_GeoDesignIncMember" xlink:label="loc_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:to="lab_nvee_GeoDesignIncMember_73EC6853F4C6E30E49AB9BF6530099A3" xlink:type="arc"/>
<link:label id="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED_terseLabel_en-US" xlink:label="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Page One Consultants </link:label>
<link:label id="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED_label_en-US" xlink:label="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Page One Consultants [Member] </link:label>
<link:label id="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED_documentation_en-US" xlink:label="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Page One Consultants [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_PageOneConsultantsMember" xlink:label="loc_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:to="lab_nvee_PageOneConsultantsMember_28C32A10A6BE74DE6AFF9BF6530085ED" xlink:type="arc"/>
<link:label id="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3_verboseLabel_en-US" xlink:label="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Celtic Energy, Inc </link:label>
<link:label id="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3_label_en-US" xlink:label="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Celtic Energy, Inc [Member] </link:label>
<link:label id="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3_documentation_en-US" xlink:label="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information about acquisition of Celtic Energy, Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CelticEnergyIncMember" xlink:label="loc_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:to="lab_nvee_CelticEnergyIncMember_DF3A6F795C55F7EC3B329BF65300C7D3" xlink:type="arc"/>
<link:label id="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43_verboseLabel_en-US" xlink:label="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> CHI Engineering Inc. </link:label>
<link:label id="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43_label_en-US" xlink:label="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> CHI Engineering Inc. [Member] </link:label>
<link:label id="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43_documentation_en-US" xlink:label="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Related to the entity CHI Engineering Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CHIEngineeringIncMember" xlink:label="loc_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:to="lab_nvee_CHIEngineeringIncMember_FC93A669FF3EBA83091A9BF653016A43" xlink:type="arc"/>
<link:label id="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF_verboseLabel_en-US" xlink:label="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> CSA (M&E) Ltd. </link:label>
<link:label id="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF_label_en-US" xlink:label="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> CSA (M&E) Ltd. [Member] </link:label>
<link:label id="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF_documentation_en-US" xlink:label="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information about CSA (M&E) Ltd. (“CSA”), a leading provider of Mechanical, Electrical, and Plumbing (MEP) engineering and sustainability consulting services. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CSAMELTDMember" xlink:label="loc_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:to="lab_nvee_CSAMELTDMember_18669C50767205BFBC509BF65301C2EF" xlink:type="arc"/>
<link:label id="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24_verboseLabel_en-US" xlink:label="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Butsko Utility Design, Inc. </link:label>
<link:label id="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24_label_en-US" xlink:label="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Butsko Utility Design, Inc. [Member] </link:label>
<link:label id="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24_documentation_en-US" xlink:label="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information about Butsko Utility Design, Inc. which is a leading provider of utility planning and design services serving both public and private sector clients through its offices in Southern California and Washington. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_ButskoUtilityDesignIncMember" xlink:label="loc_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:to="lab_nvee_ButskoUtilityDesignIncMember_4FA03136B042FD7042579BF653017C24" xlink:type="arc"/>
<link:label id="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963_terseLabel_en-US" xlink:label="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Alta Environmental, L.P </link:label>
<link:label id="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963_label_en-US" xlink:label="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Alta Environmental, L.P [Member] </link:label>
<link:label id="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963_documentation_en-US" xlink:label="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Alta Environmental, L.P [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_AltaEnvironmentalL.PMember" xlink:label="loc_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:to="lab_nvee_AltaEnvironmentalL.PMember_5D25506DEB1AC15DECBA9BF653014963" xlink:type="arc"/>
<link:label id="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1_verboseLabel_en-US" xlink:label="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Acquisition of The Sextant Group </link:label>
<link:label id="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1_label_en-US" xlink:label="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Acquisition of The Sextant Group [Member] </link:label>
<link:label id="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1_documentation_en-US" xlink:label="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information pertaining to the acquisition of The Sextant Group, Inc., a national leading provider of audiovisual, information and communications technology, acoustics consulting, and design services headquartered in Pittsburgh, PA. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_AcquisitionOfTheSextantGroupMember" xlink:label="loc_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:to="lab_nvee_AcquisitionOfTheSextantGroupMember_987B4811DF3D31B31B0B9BF6530173C1" xlink:type="arc"/>
<link:label id="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E_verboseLabel_en-US" xlink:label="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> CALYX Engineers and Consultants Inc. </link:label>
<link:label id="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E_label_en-US" xlink:label="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> CALYX Engineers and Consultants Inc. [Member] </link:label>
<link:label id="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E_documentation_en-US" xlink:label="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Related to the entity CALYX Engineers and Consultants Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CALYXEngineersAndConsultantsIncMember" xlink:label="loc_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:to="lab_nvee_CALYXEngineersAndConsultantsIncMember_2A9669D8E5BBD792B7D39BF653017A3E" xlink:type="arc"/>
<link:label id="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7_terseLabel_en-US" xlink:label="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Marron and Associates, Inc. </link:label>
<link:label id="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7_label_en-US" xlink:label="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Marron and Associates, Inc. [Member] </link:label>
<link:label id="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7_documentation_en-US" xlink:label="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents Marron and Associates, Inc., a leading environmental services firm with offices in Albuquerque and Las Cruces, New Mexico. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_MarronAndAssociatesIncMember" xlink:label="loc_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:to="lab_nvee_MarronAndAssociatesIncMember_13383850ACBBDC4D86769BF6530281D7" xlink:type="arc"/>
<link:label id="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29_terseLabel_en-US" xlink:label="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Richard D. Kimball Co., Inc. </link:label>
<link:label id="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29_label_en-US" xlink:label="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Richard D. Kimball Co., Inc. [Member] </link:label>
<link:label id="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29_documentation_en-US" xlink:label="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the acquired entity of Richard D. Kimball Co., Inc ("RDk"). </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_RichardDKimballCoIncMember" xlink:label="loc_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:to="lab_nvee_RichardDKimballCoIncMember_3FA3895DFBD113AE5B959BF65302DA29" xlink:type="arc"/>
<link:label id="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6_terseLabel_en-US" xlink:label="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Holdrege & Kull, Consulting Engineers and Geologists </link:label>
<link:label id="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6_label_en-US" xlink:label="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Holdrege & Kull, Consulting Engineers and Geologists [Member] </link:label>
<link:label id="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6_documentation_en-US" xlink:label="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the acquired entity of Holdrege & Kull, Consulting Engineers and Geologists ("H&K"). </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_HoldregeKullConsultingEngineersAndGeologistsMember" xlink:label="loc_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:to="lab_nvee_HoldregeKullConsultingEngineersAndGeologistsMember_52BBBFDBE48F37DC60209BF6530238A6" xlink:type="arc"/>
<link:label id="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6_terseLabel_en-US" xlink:label="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lochrane Engineering, Inc. </link:label>
<link:label id="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6_label_en-US" xlink:label="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lochrane Engineering, Inc. [Member] </link:label>
<link:label id="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6_documentation_en-US" xlink:label="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the acquired entity of Lochrane Engineering, Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LochraneEngineeringIncMember" xlink:label="loc_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:to="lab_nvee_LochraneEngineeringIncMember_44DC1523F0FA014F67BE9BF653022AD6" xlink:type="arc"/>
<link:label id="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2_terseLabel_en-US" xlink:label="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> CivilSource, Inc. </link:label>
<link:label id="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2_label_en-US" xlink:label="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> CivilSource, Inc. [Member] </link:label>
<link:label id="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2_documentation_en-US" xlink:label="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the name of the business acquired, CivilSource, Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CivilSourceIncMember" xlink:label="loc_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:to="lab_nvee_CivilSourceIncMember_38719E45938CFAE9893B9BF65302BED2" xlink:type="arc"/>
<link:label id="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81_terseLabel_en-US" xlink:label="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> The Hanna Group, Inc. </link:label>
<link:label id="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81_label_en-US" xlink:label="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> The Hanna Group, Inc. [Member] </link:label>
<link:label id="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81_documentation_en-US" xlink:label="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the name of the business acquired, The Hanna Group, Inc. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_TheHannaGroupIncMember" xlink:label="loc_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:to="lab_nvee_TheHannaGroupIncMember_102BB95FE6480B2694E09BF65302DF81" xlink:type="arc"/>
<link:label id="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855_terseLabel_en-US" xlink:label="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> JBA Consulting Engineers, Inc. </link:label>
<link:label id="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855_label_en-US" xlink:label="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> JBA Consulting Engineers, Inc. [Member] </link:label>
<link:label id="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855_documentation_en-US" xlink:label="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents JBA Consulting Engineers, Inc., a Las Vegas, Nevada-based MEP engineering, acoustics, technology, and fire protection consulting firm. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_JBAConsultingEngineersIncMember" xlink:label="loc_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:to="lab_nvee_JBAConsultingEngineersIncMember_7328D8ED0436B0C58AAD9BF65303D855" xlink:type="arc"/>
<link:label id="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1_terseLabel_en-US" xlink:label="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weir Environmental LLC </link:label>
<link:label id="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1_label_en-US" xlink:label="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weir Environmental LLC [Member] </link:label>
<link:label id="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1_documentation_en-US" xlink:label="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents Weir Environmental LLC, a New Orleans, Louisiana-based emergency remediation and environmental assessment firm. Weir also provides residential and commercial property loss consulting services. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_WeirEnvironmentalLLCMember" xlink:label="loc_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:to="lab_nvee_WeirEnvironmentalLLCMember_CB4863870D5BC6FA3E069BF6530305B1" xlink:type="arc"/>
<link:label id="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A_terseLabel_en-US" xlink:label="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Dade Moeller </link:label>
<link:label id="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A_label_en-US" xlink:label="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Dade Moeller [Member] </link:label>
<link:label id="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A_documentation_en-US" xlink:label="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents Dade Moeller. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_DadeMoellerMember" xlink:label="loc_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:to="lab_nvee_DadeMoellerMember_CC016967D7B25B1B4AC59BF65303AF6A" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515" xlink:to="lab_us-gaap_DebtInstrumentLineItems_22E8081DF15F746A83199BF65303E515" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt </link:label>
<link:label id="lab_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0_label_en-US" xlink:label="lab_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0" xlink:to="lab_us-gaap_LongTermDebt_11906FEA133BD811741A9BF65303E6D0" xlink:type="arc"/>
<link:label id="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Line of credit facility, current borrowing capacity </link:label>
<link:label id="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Current Borrowing Capacity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375" xlink:to="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_9890453BEA99D6FC59999BF65304B375" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Borrowings from Senior Credit Facility </link:label>
<link:label id="lab_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Lines of Credit </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89" xlink:to="lab_us-gaap_ProceedsFromLinesOfCredit_73C519767249DA074C339BF653048A89" xlink:type="arc"/>
<link:label id="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548_terseLabel_en-US" xlink:label="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Available increase in borrowing capacity </link:label>
<link:label id="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548_label_en-US" xlink:label="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Available Increase In Borrowing Capacity </link:label>
<link:label id="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548_documentation_en-US" xlink:label="lab_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Available Increase In Borrowing Capacity </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity" xlink:label="loc_nvee_LineofCreditFacilityAvailableIncreaseInBorrowingCapacity_780AFCE4C87EC36506329BF653042548" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_B0704C349153637342A99BF6530452C6_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_B0704C349153637342A99BF6530452C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest rate during period </link:label>
<link:label id="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_B0704C349153637342A99BF6530452C6_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_B0704C349153637342A99BF6530452C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Interest Rate During Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_B0704C349153637342A99BF6530452C6" xlink:type="locator"/>
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<link:label id="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2_terseLabel_en-US" xlink:label="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest rate in year 3 </link:label>
<link:label id="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2_label_en-US" xlink:label="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Interest Rate In Year 3 </link:label>
<link:label id="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2_documentation_en-US" xlink:label="lab_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Interest Rate In Year 3 </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LineofCreditFacilityInterestRateInYear3" xlink:label="loc_nvee_LineofCreditFacilityInterestRateInYear3_D887F7E57C16CBABC9F49BF6530431B2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_888E15395F53C77D14979BF6530699AC_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_888E15395F53C77D14979BF6530699AC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Promissory note interest rate </link:label>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_888E15395F53C77D14979BF6530699AC_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_888E15395F53C77D14979BF6530699AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_888E15395F53C77D14979BF6530699AC" xlink:type="locator"/>
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<link:label id="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10_terseLabel_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum fixed charge coverage ratio </link:label>
<link:label id="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10_label_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line Of Credit Facility, Covenant, Minimum Fixed Charge Coverage Ratio </link:label>
<link:label id="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10_documentation_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The Minimum level of fixed charge coverage ratio under the line of credit facility. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio" xlink:label="loc_nvee_LineOfCreditFacilityCovenantMinimumFixedChargeCoverageRatio_4DF692EBF874CDF2B7859BF653055C10" xlink:type="locator"/>
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<link:label id="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2_terseLabel_en-US" xlink:label="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum allowed annual dividends </link:label>
<link:label id="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2_label_en-US" xlink:label="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Debt Covenant, Maximum Allowed Annual Dividends </link:label>
<link:label id="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2_documentation_en-US" xlink:label="lab_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Debt Covenant, Maximum Allowed Annual Dividends </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends" xlink:label="loc_nvee_LineofCreditFacilityDebtCovenantMaximumAllowedAnnualDividends_F28004D17B9F2EE399059BF6530542B2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredFinanceCostsNet_AB47D1532BA6B1E2061B9BF653058E23_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_AB47D1532BA6B1E2061B9BF653058E23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt issuance costs </link:label>
<link:label id="lab_us-gaap_DeferredFinanceCostsNet_AB47D1532BA6B1E2061B9BF653058E23_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_AB47D1532BA6B1E2061B9BF653058E23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Issuance Costs, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_AB47D1532BA6B1E2061B9BF653058E23" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_ED6DBE0139015288A6599BF65305188A_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_ED6DBE0139015288A6599BF65305188A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of debt issuance costs </link:label>
<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_ED6DBE0139015288A6599BF65305188A_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_ED6DBE0139015288A6599BF65305188A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Debt Issuance Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_ED6DBE0139015288A6599BF65305188A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Outstanding balance </link:label>
<link:label id="lab_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9_label_en-US" xlink:label="lab_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9" xlink:to="lab_us-gaap_OtherLiabilities_6533624278BDE49848819BF653057CE9" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B_terseLabel_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of equal installments </link:label>
<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B_label_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments </link:label>
<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The number of equal installment payments required for cash and equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments" xlink:label="loc_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuableNumberOfEqualInstallments_7710387FD2B37F9721C29BF65306DD1B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NotesPayable_067079E63070CEAE0B169BF65306214E_terseLabel_en-US" xlink:label="lab_us-gaap_NotesPayable_067079E63070CEAE0B169BF65306214E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable outstanding balance </link:label>
<link:label id="lab_us-gaap_NotesPayable_067079E63070CEAE0B169BF65306214E_label_en-US" xlink:label="lab_us-gaap_NotesPayable_067079E63070CEAE0B169BF65306214E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Notes Payable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NotesPayable" xlink:label="loc_us-gaap_NotesPayable_067079E63070CEAE0B169BF65306214E" xlink:type="locator"/>
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<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6_terseLabel_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Periodic payments </link:label>
<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6_label_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments </link:label>
<link:label id="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of the required periodic payments of cash and equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments" xlink:label="loc_nvee_BusinessCombinationConsiderationTransferredCashAndEquityInterestsIssuedAndIssuablePeriodicPayments_F5E61D21456A4F13A1E59BF6530762D6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_CF6A0C7FA03FA64B009E6C5F152DC9D1_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock_CF6A0C7FA03FA64B009E6C5F152DC9D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisitions </link:label>
<link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_CF6A0C7FA03FA64B009E6C5F152DC9D1_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock_CF6A0C7FA03FA64B009E6C5F152DC9D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_CF6A0C7FA03FA64B009E6C5F152DC9D1" xlink:type="locator"/>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_0E36E55A03E286DE74706C5F151E3271" xlink:type="locator"/>
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<link:loc xlink:href="nvee-20200627.xsd#nvee_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueRollForwardRollForward" xlink:label="loc_nvee_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageGrantDateFairValueRollForwardRollForward_589FE71B30E9874692C56C5F1560691E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_8262467EDB1389FE9B516C5F1560DAF8_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_8262467EDB1389FE9B516C5F1560DAF8" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_8262467EDB1389FE9B516C5F1560DAF8_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_8262467EDB1389FE9B516C5F1560DAF8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_8262467EDB1389FE9B516C5F1560DAF8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_8E9CD5551ABFFD3CA68B6C5F1564EF48_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_8E9CD5551ABFFD3CA68B6C5F1564EF48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Granted (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_8E9CD5551ABFFD3CA68B6C5F1564EF48_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_8E9CD5551ABFFD3CA68B6C5F1564EF48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_8E9CD5551ABFFD3CA68B6C5F1564EF48" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_263FA570664887EB5D426C5F1564CA7E_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_263FA570664887EB5D426C5F1564CA7E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Vested (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_263FA570664887EB5D426C5F1564CA7E_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_263FA570664887EB5D426C5F1564CA7E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_263FA570664887EB5D426C5F1564CA7E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CDE26C11C4AEC8741E436C5F1564E197_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CDE26C11C4AEC8741E436C5F1564E197" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Forfeited (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CDE26C11C4AEC8741E436C5F1564E197_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_CDE26C11C4AEC8741E436C5F1564E197" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value </link:label>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_5C17EF462B8137425ED96C5F15647AD0_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_5C17EF462B8137425ED96C5F15647AD0" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending (in dollars per share) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_5C17EF462B8137425ED96C5F15647AD0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LeasesAbstract_C6250C32161A3EB7D7AB6C5F15449A04_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract_C6250C32161A3EB7D7AB6C5F15449A04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases [Abstract] </link:label>
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<link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_1B9F46803AA9260A6DF86C5F15448AE9_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable_1B9F46803AA9260A6DF86C5F15448AE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Table] </link:label>
<link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_1B9F46803AA9260A6DF86C5F15448AE9_label_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable_1B9F46803AA9260A6DF86C5F15448AE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Table] </link:label>
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<link:label id="lab_us-gaap_IncomeStatementLocationAxis_AFC580B920D1B176418C6C5F1544B961_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_AFC580B920D1B176418C6C5F1544B961" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Axis] </link:label>
<link:label id="lab_us-gaap_IncomeStatementLocationAxis_AFC580B920D1B176418C6C5F1544B961_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_AFC580B920D1B176418C6C5F1544B961" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Axis] </link:label>
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<link:label id="lab_us-gaap_IncomeStatementLocationDomain_67DE001E7B0DC92D56666C5F154443D1_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_67DE001E7B0DC92D56666C5F154443D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement Location [Domain] </link:label>
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<link:label id="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E_terseLabel_en-US" xlink:label="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Facilities and facilities related </link:label>
<link:label id="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E_label_en-US" xlink:label="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Facilities and Facilities Related [Member] </link:label>
<link:label id="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E_documentation_en-US" xlink:label="lab_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information included in the income statement line item Facilities and Facilities Related. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_FacilitiesAndFacilitiesRelatedMember" xlink:label="loc_nvee_FacilitiesAndFacilitiesRelatedMember_831D4A1DC4B57D1D39D56C5F1545BB8E" xlink:type="locator"/>
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<link:label id="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7_terseLabel_en-US" xlink:label="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation and amortization </link:label>
<link:label id="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7_label_en-US" xlink:label="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation and Amortization [Member] </link:label>
<link:label id="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7_documentation_en-US" xlink:label="lab_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents information included in the income statement line item Depreciation and Amortization. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_DepreciationAndAmortizationMember" xlink:label="loc_nvee_DepreciationAndAmortizationMember_68160B736E9C5609D6F76C5F15452DF7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest expense </link:label>
<link:label id="lab_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D_label_en-US" xlink:label="lab_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Expense [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="loc_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D" xlink:to="lab_us-gaap_InterestExpenseMember_36DF2094B8BB907F45FF6C5F1545BD9D" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_0DE500C9BC15B878AF906C5F1545E63F_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_0DE500C9BC15B878AF906C5F1545E63F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label>
<link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_0DE500C9BC15B878AF906C5F1545E63F_label_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_0DE500C9BC15B878AF906C5F1545E63F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_0DE500C9BC15B878AF906C5F1545E63F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease cost </link:label>
<link:label id="lab_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:label="loc_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5" xlink:to="lab_us-gaap_OperatingLeaseCost_AD80A6333176AB0CC14B6C5F1545FCA5" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_92EA7931F5C89318552C6C5F1546519F_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_92EA7931F5C89318552C6C5F1546519F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of financing lease assets </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_92EA7931F5C89318552C6C5F1546519F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_92EA7931F5C89318552C6C5F1546519F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_92EA7931F5C89318552C6C5F1546519F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_29DCAA086FD0E31639676C5F154652DB_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_29DCAA086FD0E31639676C5F154652DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest on lease liabilities </link:label>
<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_29DCAA086FD0E31639676C5F154652DB_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_29DCAA086FD0E31639676C5F154652DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Interest Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_29DCAA086FD0E31639676C5F154652DB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LeaseCost_335939DD596AD32EB8046C5F15460564_totalLabel_en-US" xlink:label="lab_us-gaap_LeaseCost_335939DD596AD32EB8046C5F15460564" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease cost </link:label>
<link:label id="lab_us-gaap_LeaseCost_335939DD596AD32EB8046C5F15460564_label_en-US" xlink:label="lab_us-gaap_LeaseCost_335939DD596AD32EB8046C5F15460564" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaap_LeaseCost_335939DD596AD32EB8046C5F15460564" xlink:type="locator"/>
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<link:label id="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF_terseLabel_en-US" xlink:label="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities </link:label>
<link:label id="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF_label_en-US" xlink:label="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities Disclosure [Text Block] </link:label>
<link:label id="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF_documentation_en-US" xlink:label="lab_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The entire disclosure for accrued liabilities. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_AccruedLiabilitiesDisclosureTextBlock" xlink:label="loc_nvee_AccruedLiabilitiesDisclosureTextBlock_597C38CA7CFA4501837F6C5F164664FF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountingPoliciesAbstract_1FBAA44541153C0B54F16C5F1536272C_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract_1FBAA44541153C0B54F16C5F1536272C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounting Policies [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_1FBAA44541153C0B54F16C5F1536272C" xlink:type="locator"/>
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<link:label id="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D_terseLabel_en-US" xlink:label="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basis of Presentation and Principles of Consolidation </link:label>
<link:label id="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D_label_en-US" xlink:label="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Basis of Presentation and Principles of Consolidation [Policy Text Block] </link:label>
<link:label id="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D_documentation_en-US" xlink:label="lab_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Disclosure of accounting policy for the basis of presentation and principles of consolidation for the company. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock" xlink:label="loc_nvee_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_2A14F354D8A950928AA36C5F1536F29D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_171FEA3A383230D4B67C6C5F1536169C_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_171FEA3A383230D4B67C6C5F1536169C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue Recognition </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_171FEA3A383230D4B67C6C5F1536169C_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_171FEA3A383230D4B67C6C5F1536169C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerPolicyTextBlock" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_171FEA3A383230D4B67C6C5F1536169C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_9686D207C9108C0D18666C5F153723B7_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_9686D207C9108C0D18666C5F153723B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Recently Adopted Accounting Pronouncements </link:label>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_9686D207C9108C0D18666C5F153723B7_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_9686D207C9108C0D18666C5F153723B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> New Accounting Pronouncements, Policy [Policy Text Block] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_9DEE058DCE7B4CE9DEA36E000C7499F5_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_9DEE058DCE7B4CE9DEA36E000C7499F5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] </link:label>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesNameDomain_7E0D79F9A4C66C5A0D546E000C74579C_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesNameDomain_7E0D79F9A4C66C5A0D546E000C74579C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities, Name [Domain] </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesNameDomain_7E0D79F9A4C66C5A0D546E000C74579C_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesNameDomain_7E0D79F9A4C66C5A0D546E000C74579C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities, Name [Domain] </link:label>
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<link:label id="lab_us-gaap_RestrictedStockMember_85A5EF1CC5DF7D2AACF46E000C752F13_verboseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockMember_85A5EF1CC5DF7D2AACF46E000C752F13" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Restricted stock </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_85A5EF1CC5DF7D2AACF46E000C752F13" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_B96FC0B998CE8AA7ADD26E000C75DBCC_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_B96FC0B998CE8AA7ADD26E000C75DBCC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_B96FC0B998CE8AA7ADD26E000C75DBCC_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_B96FC0B998CE8AA7ADD26E000C75DBCC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_B96FC0B998CE8AA7ADD26E000C75DBCC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_D3E8A2B7F494DE7B2C7B6E000C7519FB_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_D3E8A2B7F494DE7B2C7B6E000C7519FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive securities (in shares) </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_D3E8A2B7F494DE7B2C7B6E000C7519FB_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_D3E8A2B7F494DE7B2C7B6E000C7519FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_D3E8A2B7F494DE7B2C7B6E000C7519FB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_17770C9E3F92786031389C5995A3A0D2_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_17770C9E3F92786031389C5995A3A0D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_17770C9E3F92786031389C5995A3A0D2_label_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_17770C9E3F92786031389C5995A3A0D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_17770C9E3F92786031389C5995A3A0D2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_A41FD8939C017AD09A439C5995A49F55_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_A41FD8939C017AD09A439C5995A49F55" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-Lived Tangible Asset [Axis] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_A41FD8939C017AD09A439C5995A49F55_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_A41FD8939C017AD09A439C5995A49F55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-Lived Tangible Asset [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_A41FD8939C017AD09A439C5995A49F55" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-Lived Tangible Asset [Domain] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-Lived Tangible Asset [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_E992054E969ACB6A83089C5995A4E99B" xlink:type="arc"/>
<link:label id="lab_us-gaap_FurnitureAndFixturesMember_306DF1D3304CBA2610389C5995A48C92_terseLabel_en-US" xlink:label="lab_us-gaap_FurnitureAndFixturesMember_306DF1D3304CBA2610389C5995A48C92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Office furniture and equipment </link:label>
<link:label id="lab_us-gaap_FurnitureAndFixturesMember_306DF1D3304CBA2610389C5995A48C92_label_en-US" xlink:label="lab_us-gaap_FurnitureAndFixturesMember_306DF1D3304CBA2610389C5995A48C92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Furniture and Fixtures [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_306DF1D3304CBA2610389C5995A48C92" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25_terseLabel_en-US" xlink:label="lab_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Computer equipment </link:label>
<link:label id="lab_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25_label_en-US" xlink:label="lab_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Computer Equipment [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="loc_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25" xlink:to="lab_us-gaap_ComputerEquipmentMember_1B833D9E00FA60B1A5879C5995A5BE25" xlink:type="arc"/>
<link:label id="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73_terseLabel_en-US" xlink:label="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Survey and field equipment </link:label>
<link:label id="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73_label_en-US" xlink:label="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Survey and Field Equipment [Member] </link:label>
<link:label id="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73_documentation_en-US" xlink:label="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the property and equipment that are classified as survey and field equipment. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_SurveyAndFieldEquipmentMember" xlink:label="loc_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:to="lab_nvee_SurveyAndFieldEquipmentMember_E934906B06276BE442559C5995A5DB73" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseholdImprovementsMember_45529F24E81918B4C0619C5995A52B27_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseholdImprovementsMember_45529F24E81918B4C0619C5995A52B27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Leasehold improvements </link:label>
<link:label id="lab_us-gaap_LeaseholdImprovementsMember_45529F24E81918B4C0619C5995A52B27_label_en-US" xlink:label="lab_us-gaap_LeaseholdImprovementsMember_45529F24E81918B4C0619C5995A52B27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leasehold Improvements [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_45529F24E81918B4C0619C5995A52B27" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_6DA3CD904247073651C49C5995A5167C_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_6DA3CD904247073651C49C5995A5167C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Line Items] </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_6DA3CD904247073651C49C5995A5167C_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_6DA3CD904247073651C49C5995A5167C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_6DA3CD904247073651C49C5995A5167C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_DD1FA78876AC3D0207A29C62B7EDAAC3_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_DD1FA78876AC3D0207A29C62B7EDAAC3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment, gross </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_DD1FA78876AC3D0207A29C62B7EDAAC3_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_DD1FA78876AC3D0207A29C62B7EDAAC3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_DD1FA78876AC3D0207A29C62B7EDAAC3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2CB2DF6C07B052722F969C62EF4DD523_negatedLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2CB2DF6C07B052722F969C62EF4DD523" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Accumulated depreciation </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2CB2DF6C07B052722F969C62EF4DD523_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2CB2DF6C07B052722F969C62EF4DD523" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2CB2DF6C07B052722F969C62EF4DD523" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C5E22A449F0311E2A76C9C632FF850A8_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C5E22A449F0311E2A76C9C632FF850A8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment, net </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C5E22A449F0311E2A76C9C632FF850A8_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C5E22A449F0311E2A76C9C632FF850A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C5E22A449F0311E2A76C9C632FF850A8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LossContingencyDisclosures_14144E2F7CCA32821A686C5F15F4A0B6_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyDisclosures_14144E2F7CCA32821A686C5F15F4A0B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent Consideration </link:label>
<link:label id="lab_us-gaap_LossContingencyDisclosures_14144E2F7CCA32821A686C5F15F4A0B6_label_en-US" xlink:label="lab_us-gaap_LossContingencyDisclosures_14144E2F7CCA32821A686C5F15F4A0B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contingencies Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyDisclosures" xlink:label="loc_us-gaap_LossContingencyDisclosures_14144E2F7CCA32821A686C5F15F4A0B6" xlink:type="locator"/>
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<link:label id="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2_terseLabel_en-US" xlink:label="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Direct Costs </link:label>
<link:label id="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2_label_en-US" xlink:label="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Direct Costs [Member] </link:label>
<link:label id="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2_documentation_en-US" xlink:label="lab_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other Direct Costs [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_OtherDirectCostsMember" xlink:label="loc_nvee_OtherDirectCostsMember_41C1A2384310ACE74590B285C39269F2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B_terseLabel_en-US" xlink:label="lab_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation expense </link:label>
<link:label id="lab_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B_label_en-US" xlink:label="lab_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B" xlink:to="lab_us-gaap_Depreciation_7E9771508787CF84F2E1B27C89A5AC3B" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Accrued Liabilities </link:label>
<link:label id="lab_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Accrued Liabilities [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364" xlink:to="lab_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_D0F2FE307B48FB27806D6C5F164EC364" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue from contract liability </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer, Excluding Assessed Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_59E40848BBC1801FB9236E5B68EB92A8" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets </link:label>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_E63AB2836735C10ACCE46C5F163E3E97" xlink:type="arc"/>
<link:label id="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2_terseLabel_en-US" xlink:label="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other obligations </link:label>
<link:label id="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2_label_en-US" xlink:label="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Payable [Member] </link:label>
<link:label id="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2_documentation_en-US" xlink:label="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the stock payable. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_StockPayableMember" xlink:label="loc_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:to="lab_nvee_StockPayableMember_E0FAE4F74A7A76357A9D6C5F15FB37F2" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_D6695D05EFDB6B0499E36C5F15FB646E_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_D6695D05EFDB6B0499E36C5F15FB646E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and other obligations </link:label>
<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_D6695D05EFDB6B0499E36C5F15FB646E_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_D6695D05EFDB6B0499E36C5F15FB646E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_D6695D05EFDB6B0499E36C5F15FB646E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Finance lease, liability </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62" xlink:to="lab_us-gaap_FinanceLeaseLiability_9523EAF85F6B69DDF8D56C5F15FCDA62" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredFinanceCostsNet_4F3EBD5146C8834443BF6C5F15FC7729_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_4F3EBD5146C8834443BF6C5F15FC7729" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Debt issuance costs, net of amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_4F3EBD5146C8834443BF6C5F15FC7729" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5941FCA42EE8D84946046C5F15FC32A8_totalLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5941FCA42EE8D84946046C5F15FC32A8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total notes payable and other obligations </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5941FCA42EE8D84946046C5F15FC32A8_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5941FCA42EE8D84946046C5F15FC32A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation, Including Current Maturities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_5941FCA42EE8D84946046C5F15FC32A8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CFC2310AEA0527CEB0676C5F15FC3BED_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CFC2310AEA0527CEB0676C5F15FC3BED" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of notes payable and other obligations </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CFC2310AEA0527CEB0676C5F15FC3BED_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CFC2310AEA0527CEB0676C5F15FC3BED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CFC2310AEA0527CEB0676C5F15FC3BED" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_A0E3899810F8D2D0E2246C5F15FC4949_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_A0E3899810F8D2D0E2246C5F15FC4949" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and other obligations, less current portion </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_A0E3899810F8D2D0E2246C5F15FC4949_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_A0E3899810F8D2D0E2246C5F15FC4949" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_A0E3899810F8D2D0E2246C5F15FC4949" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_73ED95E5BDA724FD0F196C5F15B7B180_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_73ED95E5BDA724FD0F196C5F15B7B180" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Remaining revenue performance obligation amount </link:label>
<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_73ED95E5BDA724FD0F196C5F15B7B180_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_73ED95E5BDA724FD0F196C5F15B7B180" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Amount </link:label>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_378FF3282803AB9B93D06C5F161E31C5_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_378FF3282803AB9B93D06C5F161E31C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and Equipment, net </link:label>
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<link:label id="lab_nvee_WeightedAverageRemainingLeaseTermAbstract_F75DFDC555DB1DAA79AC6C5F15AE160E_terseLabel_en-US" xlink:label="lab_nvee_WeightedAverageRemainingLeaseTermAbstract_F75DFDC555DB1DAA79AC6C5F15AE160E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted - Average Remaining Lease Term (Years) </link:label>
<link:label id="lab_nvee_WeightedAverageRemainingLeaseTermAbstract_F75DFDC555DB1DAA79AC6C5F15AE160E_label_en-US" xlink:label="lab_nvee_WeightedAverageRemainingLeaseTermAbstract_F75DFDC555DB1DAA79AC6C5F15AE160E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Remaining Lease Term [Abstract] </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_4CE9231E47E54826B41B6C5F15AEABBB_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_4CE9231E47E54826B41B6C5F15AEABBB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases </link:label>
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<link:label id="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B_terseLabel_en-US" xlink:label="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Supplemental Cash Flow Information </link:label>
<link:label id="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B_label_en-US" xlink:label="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases, Supplemental Cash Flow Information [Table Text Block] </link:label>
<link:label id="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B_documentation_en-US" xlink:label="lab_nvee_LeasesSupplementalCashFlowInformationTableTextBlock_40E736C9DD5787F2F50E6C5F16732F0B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tabular disclosure of supplemental cash flow information related to operating and finance leases. </link:label>
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<link:label id="lab_us-gaap_LeaseCostTableTextBlock_0E16B257A7496C80BFF76C5F16749C95_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock_0E16B257A7496C80BFF76C5F16749C95" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Lease Cost </link:label>
<link:label id="lab_us-gaap_LeaseCostTableTextBlock_0E16B257A7496C80BFF76C5F16749C95_label_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock_0E16B257A7496C80BFF76C5F16749C95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Cost [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_37B2670D01E5F1A0CFC86C5F1674D375_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_37B2670D01E5F1A0CFC86C5F1674D375" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Maturities of Lease Liabilities </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_37B2670D01E5F1A0CFC86C5F1674D375_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_37B2670D01E5F1A0CFC86C5F1674D375" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Maturity [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_37B2670D01E5F1A0CFC86C5F1674D375" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_12C73C39E07E8430F7C26C5F16741B14_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_12C73C39E07E8430F7C26C5F16741B14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Maturities of Lease Liabilities </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_12C73C39E07E8430F7C26C5F16741B14_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_12C73C39E07E8430F7C26C5F16741B14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_12C73C39E07E8430F7C26C5F16741B14" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_CD9F62FCBC3418DF47766C5F1619F846_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_CD9F62FCBC3418DF47766C5F1619F846" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenues from External Customers and Long-Lived Assets [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_CD9F62FCBC3418DF47766C5F1619F846_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_CD9F62FCBC3418DF47766C5F1619F846" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Revenues from External Customers and Long-Lived Assets [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_CD9F62FCBC3418DF47766C5F1619F846" xlink:type="locator"/>
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<link:label id="lab_srt_StatementGeographicalAxis_07F3301C285B8AAF75A86C5F161A67B8_terseLabel_en-US" xlink:label="lab_srt_StatementGeographicalAxis_07F3301C285B8AAF75A86C5F161A67B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:label id="lab_srt_StatementGeographicalAxis_07F3301C285B8AAF75A86C5F161A67B8_label_en-US" xlink:label="lab_srt_StatementGeographicalAxis_07F3301C285B8AAF75A86C5F161A67B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_07F3301C285B8AAF75A86C5F161A67B8" xlink:type="locator"/>
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<link:label id="lab_srt_SegmentGeographicalDomain_051FD2A635F22006520B6C5F161A5B53_terseLabel_en-US" xlink:label="lab_srt_SegmentGeographicalDomain_051FD2A635F22006520B6C5F161A5B53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:label id="lab_srt_SegmentGeographicalDomain_051FD2A635F22006520B6C5F161A5B53_label_en-US" xlink:label="lab_srt_SegmentGeographicalDomain_051FD2A635F22006520B6C5F161A5B53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_051FD2A635F22006520B6C5F161A5B53" xlink:type="locator"/>
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<link:loc xlink:href="https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd#country_US" xlink:label="loc_country_US_7C79216D6261685C14486C5F161A8E91" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NonUsMember_24B98E5EEC231C23BE0C6C5F161BA797_terseLabel_en-US" xlink:label="lab_us-gaap_NonUsMember_24B98E5EEC231C23BE0C6C5F161BA797" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Foreign </link:label>
<link:label id="lab_us-gaap_NonUsMember_24B98E5EEC231C23BE0C6C5F161BA797_label_en-US" xlink:label="lab_us-gaap_NonUsMember_24B98E5EEC231C23BE0C6C5F161BA797" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Non-US [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_24B98E5EEC231C23BE0C6C5F161BA797" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_81B2D75CEE0ABE2D58B26C5F161C77C2_terseLabel_en-US" xlink:label="lab_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_81B2D75CEE0ABE2D58B26C5F161C77C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenues from External Customers and Long-Lived Assets [Line Items] </link:label>
<link:label id="lab_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_81B2D75CEE0ABE2D58B26C5F161C77C2_label_en-US" xlink:label="lab_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_81B2D75CEE0ABE2D58B26C5F161C77C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenues from External Customers and Long-Lived Assets [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_81B2D75CEE0ABE2D58B26C5F161C77C2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentMember_4C9087CFE6C401568EF3BB003B4E12D2_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentMember_4C9087CFE6C401568EF3BB003B4E12D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and Equipment </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentMember_4C9087CFE6C401568EF3BB003B4E12D2_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentMember_4C9087CFE6C401568EF3BB003B4E12D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentMember" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentMember_4C9087CFE6C401568EF3BB003B4E12D2" xlink:type="locator"/>
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<link:label id="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609_terseLabel_en-US" xlink:label="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> WHPacific, Inc. </link:label>
<link:label id="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609_label_en-US" xlink:label="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> WHPacific, Inc. [Member] </link:label>
<link:label id="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609_documentation_en-US" xlink:label="lab_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> WHPacific, Inc. [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_WHPacificInc.Member" xlink:label="loc_nvee_WHPacificInc.Member_C57EF38BD5A2E342047ABAC18C7E3609" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_8EBA89342F4147C1F37BBAC18C7F73B4_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_8EBA89342F4147C1F37BBAC18C7F73B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_8EBA89342F4147C1F37BBAC18C7F73B4_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_8EBA89342F4147C1F37BBAC18C7F73B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Goodwill, Expected Tax Deductible Amount </link:label>
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<link:label id="lab_nvee_Workingcapitaladjustmentreductionofpurchaseprice_545707834B2D978622DABAC18C7FEB50_terseLabel_en-US" xlink:label="lab_nvee_Workingcapitaladjustmentreductionofpurchaseprice_545707834B2D978622DABAC18C7FEB50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Working capital adjustment reduction of purchase price </link:label>
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<link:label id="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3_terseLabel_en-US" xlink:label="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity Plan 2011 </link:label>
<link:label id="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3_label_en-US" xlink:label="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Plan 2011 [Member] </link:label>
<link:label id="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3_documentation_en-US" xlink:label="lab_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the 2011 equity incentive plan. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_EquityPlan2011Member" xlink:label="loc_nvee_EquityPlan2011Member_E9C4FAA50BA0AC78264F6E56A1EE38E3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4AC5E649A6E465E76A3B6E56A1EFC516_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4AC5E649A6E465E76A3B6E56A1EFC516" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of shares authorized </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4AC5E649A6E465E76A3B6E56A1EFC516_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4AC5E649A6E465E76A3B6E56A1EFC516" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4AC5E649A6E465E76A3B6E56A1EFC516" xlink:type="locator"/>
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<link:label id="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835_terseLabel_en-US" xlink:label="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rate of increase decrease in shares authorized for issuance </link:label>
<link:label id="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835_label_en-US" xlink:label="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance </link:label>
<link:label id="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835_documentation_en-US" xlink:label="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Rate Of Increase Decrease In Shares Authorized For Issuance </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance" xlink:label="loc_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:to="lab_nvee_RateOfIncreaseDecreaseInSharesAuthorizedForIssuance_2F1940A7F33944D94B436E56A1F0F835" xlink:type="arc"/>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Award vesting period </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_6B353EC91AB54F7F92C76E56A1F0F901" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84_terseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred compensation </link:label>
<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense_4F11A8EC14901CFC316B6E56A1F00E84" xlink:type="arc"/>
<link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted average vesting period </link:label>
<link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DD5D2FF61A3ABC51BDB36E56A1F0DECA" xlink:type="arc"/>
<link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cost not yet recognized, term </link:label>
<link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_20B6C0705F25D6A7D49B6E56A1F09A2F" xlink:type="arc"/>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair value of restricted shares vested </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_D57B8FDAECE8DA748FBA6E56A1F1C8EA" xlink:type="arc"/>
<link:label id="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2_terseLabel_en-US" xlink:label="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Measurement Period [Axis] </link:label>
<link:label id="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2_label_en-US" xlink:label="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Measurement Period [Axis] </link:label>
<link:label id="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2_documentation_en-US" xlink:label="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Measurement Period [Axis] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_MeasurementPeriodAxis" xlink:label="loc_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:to="lab_nvee_MeasurementPeriodAxis_C0879FCF5EAF2F861C0A9BF652D4B2E2" xlink:type="arc"/>
<link:label id="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937_terseLabel_en-US" xlink:label="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Measurement Period [Domain] </link:label>
<link:label id="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937_label_en-US" xlink:label="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Measurement Period [Domain] </link:label>
<link:label id="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937_documentation_en-US" xlink:label="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Measurement Period [Axis] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_MeasurementPeriodDomain" xlink:label="loc_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:to="lab_nvee_MeasurementPeriodDomain_7A8A353A696CD6229C609BF652D4B937" xlink:type="arc"/>
<link:label id="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC_terseLabel_en-US" xlink:label="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amendment Closing Date through June 27, 2020 </link:label>
<link:label id="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC_label_en-US" xlink:label="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amendment Closing Date through June 27, 2020 [Member] </link:label>
<link:label id="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC_documentation_en-US" xlink:label="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amendment Closing Date through June 27, 2020 [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_AmendmentClosingDatethroughJune272020Member" xlink:label="loc_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:to="lab_nvee_AmendmentClosingDatethroughJune272020Member_5173879B7FE718029BD39BF652D658DC" xlink:type="arc"/>
<link:label id="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A_terseLabel_en-US" xlink:label="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> June 28, 2020 through October 3, 2020 </link:label>
<link:label id="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A_label_en-US" xlink:label="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> June 28, 2020 through October 3, 2020 [Member] </link:label>
<link:label id="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A_documentation_en-US" xlink:label="lab_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> June 28, 2020 through October 3, 2020 [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_June282020throughOctober32020Member" xlink:label="loc_nvee_June282020throughOctober32020Member_F66344783A593987FC869BF652D6420A" xlink:type="locator"/>
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<link:label id="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3_terseLabel_en-US" xlink:label="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> October 4, 2020 through January 2, 2021 </link:label>
<link:label id="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3_label_en-US" xlink:label="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> October 4, 2020 through January 2, 2021 [Member] </link:label>
<link:label id="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3_documentation_en-US" xlink:label="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> October 4, 2020 through January 2, 2021 [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_October42020throughJanuary22021Member" xlink:label="loc_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:to="lab_nvee_October42020throughJanuary22021Member_D4A5556D9B8C4FD430E09BF652DB28B3" xlink:type="arc"/>
<link:label id="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F_terseLabel_en-US" xlink:label="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> January 3, 2021 and April 3, 2021 </link:label>
<link:label id="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F_label_en-US" xlink:label="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> January 3, 2021 and April 3, 2021 [Member] </link:label>
<link:label id="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F_documentation_en-US" xlink:label="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> January 3, 2021 and April 3, 2021 [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_January32021andApril32021Member" xlink:label="loc_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:to="lab_nvee_January32021andApril32021Member_42B3A64FE90166711FAA9BF652DC677F" xlink:type="arc"/>
<link:label id="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F_terseLabel_en-US" xlink:label="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> April 4, 2021 and July 3, 2021 </link:label>
<link:label id="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F_label_en-US" xlink:label="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> April 4, 2021 and July 3, 2021 [Member] </link:label>
<link:label id="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F_documentation_en-US" xlink:label="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> April 4, 2021 and July 3, 2021 [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_April42021andJuly32021Member" xlink:label="loc_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:to="lab_nvee_April42021andJuly32021Member_5897292102A1F8EA8C979BF652DCA28F" xlink:type="arc"/>
<link:label id="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658_terseLabel_en-US" xlink:label="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> July 4, 2021 and thereafter </link:label>
<link:label id="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658_label_en-US" xlink:label="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> July 4, 2021 and thereafter [Member] </link:label>
<link:label id="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658_documentation_en-US" xlink:label="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> July 4, 2021 and thereafter [Member] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_July42021andthereafterMember" xlink:label="loc_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:to="lab_nvee_July42021andthereafterMember_C67E50F84C075B554A1B9BF652DC7658" xlink:type="arc"/>
<link:label id="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575_verboseLabel_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Maximum consolidated leverage ratio </link:label>
<link:label id="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575_label_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line Of Credit Facility, Covenant, Maximum Fixed Charge Coverage Ratio </link:label>
<link:label id="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575_documentation_en-US" xlink:label="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line Of Credit Facility, Covenant, Maximum Fixed Charge Coverage Ratio </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio" xlink:label="loc_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:to="lab_nvee_LineOfCreditFacilityCovenantMaximumFixedChargeCoverageRatio_3768F33CB524318371559BF652DC1575" xlink:type="arc"/>
<link:label id="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C_terseLabel_en-US" xlink:label="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Roll Forward] </link:label>
<link:label id="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C_label_en-US" xlink:label="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Roll Forward] </link:label>
<link:label id="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C_documentation_en-US" xlink:label="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Roll Forward] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CommitmentsandContingenciesDisclosureRollForward" xlink:label="loc_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:to="lab_nvee_CommitmentsandContingenciesDisclosureRollForward_19341D954B9F746CDA5BBAC18C30940C" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_43E674B018AEE9FECF1ABAC18C300AC7_periodStartLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_43E674B018AEE9FECF1ABAC18C300AC7" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Contingent consideration, beginning of the year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_43E674B018AEE9FECF1ABAC18C300AC7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_43E674B018AEE9FECF1ABAC18C300AC7" xlink:to="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_43E674B018AEE9FECF1ABAC18C300AC7" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6_terseLabel_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Additions for acquisitions </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6_label_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Additions for acquisitions </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the additions for acquisitions during the period effecting a change in the contingent consideration liability. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions" xlink:label="loc_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:to="lab_nvee_BusinessCombinationContingentConsiderationLiabilityAdditionsForAcquisitions_A4A9810DF51CBBFB673FBAC18C3029C6" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615_negatedLabel_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Reduction of liability for payments made </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615_label_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the amount of reduction of liability for payments made, effecting a change in the contingent consideration liability during the period. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade" xlink:label="loc_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:to="lab_nvee_BusinessCombinationContingentConsiderationLiabilityReductionOfLiabilityForPaymentsMade_12016019F7A10343A5BFBAC18C30E615" xlink:type="arc"/>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA_terseLabel_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Decrease of liability related to re-measurement of fair value </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA_label_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase of liability related to re-measurement of fair value </link:label>
<link:label id="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA_documentation_en-US" xlink:label="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the amount of increase (reduction) of the contingent consideration liability during the period related to re-measurement of fair value. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue" xlink:label="loc_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:to="lab_nvee_BusinessCombinationContingentConsiderationLiabilityIncreaseReductionOfLiabilityRelatedToRemeasurementOfFairValue_AC555C5D0498F1276420BAC18C3093AA" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_9AA6F9A24D24B7ACCC57BAC18C3136A7_periodEndLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_9AA6F9A24D24B7ACCC57BAC18C3136A7" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Total contingent consideration, end of the period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_9AA6F9A24D24B7ACCC57BAC18C3136A7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_9AA6F9A24D24B7ACCC57BAC18C3136A7" xlink:to="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_9AA6F9A24D24B7ACCC57BAC18C3136A7" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8_negatedLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Current portion of contingent consideration </link:label>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8" xlink:to="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_3997523549CE00898FBABAC18C3146B8" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_3EDD124C9C40F5E204ACBAC18C319431_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_3EDD124C9C40F5E204ACBAC18C319431" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent consideration, less current portion </link:label>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_3EDD124C9C40F5E204ACBAC18C319431_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_3EDD124C9C40F5E204ACBAC18C319431" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_3EDD124C9C40F5E204ACBAC18C319431" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_22D05EF0F58A6B1B12EB6E5787D6371A_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_22D05EF0F58A6B1B12EB6E5787D6371A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income tax liabilities, net </link:label>
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<link:label id="lab_nvee_GHDServicesIncMember_7D612CF9FA2271A9B51FBAC18CC0CD56_terseLabel_en-US" xlink:label="lab_nvee_GHDServicesIncMember_7D612CF9FA2271A9B51FBAC18CC0CD56" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> GHD Services, Inc </link:label>
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<link:label id="lab_us-gaap_BusinessAcquisitionLineItems_1D6242DC85ACC989B292BAC18CC203A8_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_1D6242DC85ACC989B292BAC18CC203A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Line Items] </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_E5E8EA3B760287F124E5BAC18CC3C904_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_E5E8EA3B760287F124E5BAC18CC3C904" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_E5E8EA3B760287F124E5BAC18CC3C904" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_405F4ABCBA2DE9F78EF8B27C8A42FB4E_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_405F4ABCBA2DE9F78EF8B27C8A42FB4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_405F4ABCBA2DE9F78EF8B27C8A42FB4E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:label id="lab_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E" xlink:to="lab_us-gaap_AssetsAbstract_3967CEF47B98EFBAAA5AB27C8A42BF5E" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current assets: </link:label>
<link:label id="lab_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68" xlink:to="lab_us-gaap_AssetsCurrentAbstract_43F919A52DD28073CBD2B27C8A429E68" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_3906C9DC8FDBB8BB4F9AB27C8A436142_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_3906C9DC8FDBB8BB4F9AB27C8A436142" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_3906C9DC8FDBB8BB4F9AB27C8A436142_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_3906C9DC8FDBB8BB4F9AB27C8A436142" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3906C9DC8FDBB8BB4F9AB27C8A436142" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_EF197D90C5E9B47DBF37B27C8A437211_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_EF197D90C5E9B47DBF37B27C8A437211" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Billed receivables, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_EF197D90C5E9B47DBF37B27C8A437211" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_559B5F4072BD4DB35F16B27C8A43A02A_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent_559B5F4072BD4DB35F16B27C8A43A02A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unbilled receivables, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_559B5F4072BD4DB35F16B27C8A43A02A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_ADE3A4019ADA5733444BB27C8A43624A_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_ADE3A4019ADA5733444BB27C8A43624A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid expenses and other current assets </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_ADE3A4019ADA5733444BB27C8A43624A_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_ADE3A4019ADA5733444BB27C8A43624A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense and Other Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_ADE3A4019ADA5733444BB27C8A43624A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current assets </link:label>
<link:label id="lab_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10" xlink:to="lab_us-gaap_AssetsCurrent_3F7EFD27A5AE7445A649B27C8A44EF10" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C23A7DC29BD349EBCB22B27C8A441F29_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C23A7DC29BD349EBCB22B27C8A441F29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_C23A7DC29BD349EBCB22B27C8A441F29" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_B18A46840C104B7911C1B27C8A448361_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_B18A46840C104B7911C1B27C8A448361" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Right-of-use lease assets, net </link:label>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_B18A46840C104B7911C1B27C8A448361_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_B18A46840C104B7911C1B27C8A448361" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Right-of-Use Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_B18A46840C104B7911C1B27C8A448361" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_C5D760DB2C52D73D5BC5B27C8A444250_verboseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_C5D760DB2C52D73D5BC5B27C8A444250" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Intangible assets, net </link:label>
<link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_C5D760DB2C52D73D5BC5B27C8A444250_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_C5D760DB2C52D73D5BC5B27C8A444250" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Intangible Assets, Net (Excluding Goodwill) </link:label>
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<link:label id="lab_us-gaap_Goodwill_BA72E88BFE8CD661C743B27C8A44CB48_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_BA72E88BFE8CD661C743B27C8A44CB48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrent_4835AEB4738675E053ABB27C8A44ECE0_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_4835AEB4738675E053ABB27C8A44ECE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other assets </link:label>
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<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_5904AF45B16EA153074BB27C8A452EC9_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_5904AF45B16EA153074BB27C8A452EC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities and Stockholders’ Equity </link:label>
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<link:label id="lab_us-gaap_AccountsPayableCurrent_B49EBDB3416A6277467DB27C8A452671_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_B49EBDB3416A6277467DB27C8A452671" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable </link:label>
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<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_5BF6EE352EB5E226CE83B27C8A458EA9_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_5BF6EE352EB5E226CE83B27C8A458EA9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued liabilities </link:label>
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<link:label id="lab_us-gaap_ContractWithCustomerLiability_E1F7D4646FCD3501B2F1B27C8A4647D6_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability_E1F7D4646FCD3501B2F1B27C8A4647D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Billings in excess of costs and estimated earnings on uncompleted contracts </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerLiability_E1F7D4646FCD3501B2F1B27C8A4647D6_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability_E1F7D4646FCD3501B2F1B27C8A4647D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Liability </link:label>
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<link:label id="lab_us-gaap_Deposits_DBEB43245E26E8478487B27C8A466B5A_terseLabel_en-US" xlink:label="lab_us-gaap_Deposits_DBEB43245E26E8478487B27C8A466B5A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Client deposits </link:label>
<link:label id="lab_us-gaap_Deposits_DBEB43245E26E8478487B27C8A466B5A_label_en-US" xlink:label="lab_us-gaap_Deposits_DBEB43245E26E8478487B27C8A466B5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deposits </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_CF1A1BC3A4B04B37A6A0B27C8A468D98_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_CF1A1BC3A4B04B37A6A0B27C8A468D98" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of contingent consideration </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_CF1A1BC3A4B04B37A6A0B27C8A468D98" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_C7A9EE14B1FDA3E6E716B27C8A46DA05_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_C7A9EE14B1FDA3E6E716B27C8A46DA05" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of notes payable and other obligations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_C7A9EE14B1FDA3E6E716B27C8A46DA05" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LiabilitiesCurrent_319874F0C0724A942BE0B27C8A46A1CD_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_319874F0C0724A942BE0B27C8A46A1CD" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current liabilities </link:label>
<link:label id="lab_us-gaap_LiabilitiesCurrent_319874F0C0724A942BE0B27C8A46A1CD_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_319874F0C0724A942BE0B27C8A46A1CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_319874F0C0724A942BE0B27C8A46A1CD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_5C79ACF8361728BB0FC9B282F69780D1_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_5C79ACF8361728BB0FC9B282F69780D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other long-term liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_5C79ACF8361728BB0FC9B282F69780D1_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_5C79ACF8361728BB0FC9B282F69780D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_5C79ACF8361728BB0FC9B282F69780D1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_25E7BD50CCD26B0D34E3B27C8A470E1A_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_25E7BD50CCD26B0D34E3B27C8A470E1A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and other obligations, less current portion </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_25E7BD50CCD26B0D34E3B27C8A470E1A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_333D38E99956542C6C96B27C8A4707DF_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_333D38E99956542C6C96B27C8A4707DF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income tax liabilities, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_333D38E99956542C6C96B27C8A4707DF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Liabilities_9FA50198FC4D7FC4F833B27C8A4706E7_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities_9FA50198FC4D7FC4F833B27C8A4706E7" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities </link:label>
<link:label id="lab_us-gaap_Liabilities_9FA50198FC4D7FC4F833B27C8A4706E7_label_en-US" xlink:label="lab_us-gaap_Liabilities_9FA50198FC4D7FC4F833B27C8A4706E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
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<link:label id="lab_us-gaap_CommitmentsAndContingencies_CB7354C0E6165E2BD5D4B27C8A48E643_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_CB7354C0E6165E2BD5D4B27C8A48E643" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and contingencies </link:label>
<link:label id="lab_us-gaap_CommitmentsAndContingencies_CB7354C0E6165E2BD5D4B27C8A48E643_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_CB7354C0E6165E2BD5D4B27C8A48E643" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label>
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<link:label id="lab_us-gaap_StockholdersEquityAbstract_0846AA0211844C10B174B27C8A4850FB_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_0846AA0211844C10B174B27C8A4850FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stockholders’ equity: </link:label>
<link:label id="lab_us-gaap_StockholdersEquityAbstract_0846AA0211844C10B174B27C8A4850FB_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_0846AA0211844C10B174B27C8A4850FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent [Abstract] </link:label>
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<link:label id="lab_us-gaap_PreferredStockValue_363822E9F741781AA2E8B27C8A489EEB_label_en-US" xlink:label="lab_us-gaap_PreferredStockValue_363822E9F741781AA2E8B27C8A489EEB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Value, Issued </link:label>
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<link:label id="lab_us-gaap_AdditionalPaidInCapital_BEC7BF302BF1D623B006B27C8A48EA76_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_BEC7BF302BF1D623B006B27C8A48EA76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Additional paid-in capital </link:label>
<link:label id="lab_us-gaap_AdditionalPaidInCapital_BEC7BF302BF1D623B006B27C8A48EA76_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_BEC7BF302BF1D623B006B27C8A48EA76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Additional Paid in Capital </link:label>
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<link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_207A7FE653DE4DC672DBB27C8A48F408_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_207A7FE653DE4DC672DBB27C8A48F408" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retained earnings </link:label>
<link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_207A7FE653DE4DC672DBB27C8A48F408_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_207A7FE653DE4DC672DBB27C8A48F408" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings (Accumulated Deficit) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_207A7FE653DE4DC672DBB27C8A48F408" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockholdersEquity_E2C233B15737E680836CB27C8A49136C_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_E2C233B15737E680836CB27C8A49136C" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total stockholders’ equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_E2C233B15737E680836CB27C8A49136C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities and stockholders’ equity </link:label>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_F17345C7D33812D3591AB27C8A4947F0" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Leases </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payment, Due [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5" xlink:to="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_DCE54F688E709E205CDD6E5987ADD8E5" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6A454A0E0F18879E02616E5987AEC97C" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, Year One </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_4A8D51A9543FBCE122F46E6DEB37374D" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_445CA563E2151D2AE8DB6E5987AE8AF3" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_DCC12379EFAE79F377446E6B8CFE61E9" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_661F2FD5C0FB9A94325B6E6B8D348BD4_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_661F2FD5C0FB9A94325B6E6B8D348BD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2024 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_661F2FD5C0FB9A94325B6E6B8D348BD4_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_661F2FD5C0FB9A94325B6E6B8D348BD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, Year Four </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_661F2FD5C0FB9A94325B6E6B8D348BD4" xlink:type="locator"/>
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<link:label id="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42_terseLabel_en-US" xlink:label="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42_label_en-US" xlink:label="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, after Year Four </link:label>
<link:label id="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42_documentation_en-US" xlink:label="lab_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid, after Year Four </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour" xlink:label="loc_nvee_LesseeOperatingLeaseLiabilitytobePaidafterYearFour_FACC848815BFA8F1E4CD6E6CDCECBC42" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_2E9C548B23BA01B59D1D6E5987AF1BD6_totalLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_2E9C548B23BA01B59D1D6E5987AF1BD6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease payments </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_2E9C548B23BA01B59D1D6E5987AF1BD6_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_2E9C548B23BA01B59D1D6E5987AF1BD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, to be Paid </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_2E9C548B23BA01B59D1D6E5987AF1BD6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_7EE6B16A4D7ABF52ED876E5987AF0233_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_7EE6B16A4D7ABF52ED876E5987AF0233" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: Interest </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_7EE6B16A4D7ABF52ED876E5987AF0233_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_7EE6B16A4D7ABF52ED876E5987AF0233" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Undiscounted Excess Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_7EE6B16A4D7ABF52ED876E5987AF0233" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseLiability_F04349340624185059E46E5987AFF3D6_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability_F04349340624185059E46E5987AFF3D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Present value of lease liabilities </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiability_F04349340624185059E46E5987AFF3D6_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability_F04349340624185059E46E5987AFF3D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_F04349340624185059E46E5987AFF3D6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_AC4961F20633EC2CB3336E5987AF6316_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_AC4961F20633EC2CB3336E5987AF6316" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance Leases </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_AC4961F20633EC2CB3336E5987AF6316_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_AC4961F20633EC2CB3336E5987AF6316" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payment, Due [Abstract] </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_6734B8277360BD769B8D6E5987AFA250_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_6734B8277360BD769B8D6E5987AFA250" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_6734B8277360BD769B8D6E5987AFA250_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_6734B8277360BD769B8D6E5987AFA250" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, Remainder of Fiscal Year </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_6734B8277360BD769B8D6E5987AFA250" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_53C5862D6DF6862330496E6DEB48F6BB_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_53C5862D6DF6862330496E6DEB48F6BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_53C5862D6DF6862330496E6DEB48F6BB_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_53C5862D6DF6862330496E6DEB48F6BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, Year One </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_53C5862D6DF6862330496E6DEB48F6BB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1686B0C26EBDEB9D91F16E5987B040C6_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1686B0C26EBDEB9D91F16E5987B040C6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1686B0C26EBDEB9D91F16E5987B040C6_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1686B0C26EBDEB9D91F16E5987B040C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1686B0C26EBDEB9D91F16E5987B040C6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_7C7CC404E1F65017EE306E6BAC78E990_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_7C7CC404E1F65017EE306E6BAC78E990" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_7C7CC404E1F65017EE306E6BAC78E990_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_7C7CC404E1F65017EE306E6BAC78E990" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, Year Three </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_7C7CC404E1F65017EE306E6BAC78E990" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_CB646913CCA00DC42E696E6BAD8FB6B2_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_CB646913CCA00DC42E696E6BAD8FB6B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2024 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_CB646913CCA00DC42E696E6BAD8FB6B2_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_CB646913CCA00DC42E696E6BAD8FB6B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, Year Four </link:label>
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<link:label id="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B_terseLabel_en-US" xlink:label="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B_label_en-US" xlink:label="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, after Year Four </link:label>
<link:label id="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B_documentation_en-US" xlink:label="lab_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, to be Paid, after Year Four </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_FinanceLeaseLiabilitytobePaidafterYearFour" xlink:label="loc_nvee_FinanceLeaseLiabilitytobePaidafterYearFour_C6DC7AEC1351587953356E6D60F14C9B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_955659A3D0650AE446F46E5987B1D22F_totalLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_955659A3D0650AE446F46E5987B1D22F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease payments </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_955659A3D0650AE446F46E5987B1D22F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_955659A3D0650AE446F46E5987B1D22F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payment, Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_955659A3D0650AE446F46E5987B1D22F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_B0B3244C0C09593E14616E5987B1D3FE_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_B0B3244C0C09593E14616E5987B1D3FE" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: Interest </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_B0B3244C0C09593E14616E5987B1D3FE_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_B0B3244C0C09593E14616E5987B1D3FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Undiscounted Excess Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_B0B3244C0C09593E14616E5987B1D3FE" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiability_0DD8DD1B983BC009E37A6E5987B18FFD_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_0DD8DD1B983BC009E37A6E5987B18FFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Present value of lease liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_0DD8DD1B983BC009E37A6E5987B18FFD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_B7E41245D4DFF94392916C5F1549486D_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_B7E41245D4DFF94392916C5F1549486D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock-Based Compensation </link:label>
<link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_B7E41245D4DFF94392916C5F1549486D_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_B7E41245D4DFF94392916C5F1549486D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_B7E41245D4DFF94392916C5F1549486D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_2005D3C20EA882F9B9B06C5F15FF1FC9_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_2005D3C20EA882F9B9B06C5F15FF1FC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-Term Debt Instruments </link:label>
<link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_2005D3C20EA882F9B9B06C5F15FF1FC9_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_2005D3C20EA882F9B9B06C5F15FF1FC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_2005D3C20EA882F9B9B06C5F15FF1FC9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_0B9CEF5A415E7C6643DE6C5F16008B69_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_0B9CEF5A415E7C6643DE6C5F16008B69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Line of Credit Facilities </link:label>
<link:label id="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_0B9CEF5A415E7C6643DE6C5F16008B69_label_en-US" xlink:label="lab_us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock_0B9CEF5A415E7C6643DE6C5F16008B69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Line of Credit Facilities [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_DisaggregationOfRevenueTable_F53F32D6C1C41F96B1116C5F1607729C_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable_F53F32D6C1C41F96B1116C5F1607729C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Disaggregation of Revenue [Table] </link:label>
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<link:label id="lab_us-gaap_ContractWithCustomerBasisOfPricingAxis_9AE75FB4324012F5AFB96C5F1607E612_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerBasisOfPricingAxis_9AE75FB4324012F5AFB96C5F1607E612" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Basis of Pricing [Axis] </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerBasisOfPricingAxis_9AE75FB4324012F5AFB96C5F1607E612_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerBasisOfPricingAxis_9AE75FB4324012F5AFB96C5F1607E612" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Basis of Pricing [Axis] </link:label>
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<link:label id="lab_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Basis of Pricing [Domain] </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Basis of Pricing [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerBasisOfPricingDomain" xlink:label="loc_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4" xlink:to="lab_us-gaap_ContractWithCustomerBasisOfPricingDomain_B37EA9677228A7CABF8D6C5F160777A4" xlink:type="arc"/>
<link:label id="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90_terseLabel_en-US" xlink:label="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cost-reimbursable contracts </link:label>
<link:label id="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90_label_en-US" xlink:label="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost-Reimbursable Contracts [Member] </link:label>
<link:label id="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90_documentation_en-US" xlink:label="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contract with customer in which amount of contract may be cost-reimbursable. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CostreimbursableContractsMember" xlink:label="loc_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:to="lab_nvee_CostreimbursableContractsMember_68CA1D7938B78129A45C6C5F16085E90" xlink:type="arc"/>
<link:label id="lab_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13_terseLabel_en-US" xlink:label="lab_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fixed-unit price contracts </link:label>
<link:label id="lab_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13_label_en-US" xlink:label="lab_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fixed-price Contract [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FixedPriceContractMember" xlink:label="loc_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13" xlink:to="lab_us-gaap_FixedPriceContractMember_5C7E6019B02817D491F26C5F1608CE13" xlink:type="arc"/>
<link:label id="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183_terseLabel_en-US" xlink:label="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of equipment operating leases </link:label>
<link:label id="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183_label_en-US" xlink:label="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Number Of Equipment Operating Leases </link:label>
<link:label id="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183_documentation_en-US" xlink:label="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Number Of Equipment Operating Leases </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_NumberOfEquipmentOperatingLeases" xlink:label="loc_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:to="lab_nvee_NumberOfEquipmentOperatingLeases_4701D7FC2407D3B40863B27C88EA9183" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_FBF9F063301298B91C25B27C88EB68E0_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_FBF9F063301298B91C25B27C88EB68E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_FBF9F063301298B91C25B27C88EB68E0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset_FBF9F063301298B91C25B27C88EB68E0" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset_FBF9F063301298B91C25B27C88EB68E0" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance lease assets </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, after Accumulated Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAsset_51C43AFE9D2B48776687B27C88EBB597" xlink:type="arc"/>
<link:label id="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5_totalLabel_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total leased assets </link:label>
<link:label id="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5_label_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Total leased assets </link:label>
<link:label id="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5_documentation_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of lessee's right to use underlying assets under operating and finance leases. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_OperatingAndFinanceLeasesRightOfUseAssets" xlink:label="loc_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:to="lab_nvee_OperatingAndFinanceLeasesRightOfUseAssets_5D09CC9226FE31BB19EBB27C88EB80C5" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
<link:label id="lab_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3" xlink:to="lab_us-gaap_LiabilitiesAbstract_B1209C86899435D4D2CDB27C88EB90B3" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_1B87E95D10527E898440B27C88EB8758_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_1B87E95D10527E898440B27C88EB8758" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_1B87E95D10527E898440B27C88EB8758" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1B87E95D10527E898440B27C88EB8758" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract_1B87E95D10527E898440B27C88EB8758" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_94CFE68C92EC80EF88BAB27C88EC5BBB_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_94CFE68C92EC80EF88BAB27C88EC5BBB" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Operating </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_94CFE68C92EC80EF88BAB27C88EC5BBB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityCurrent_94CFE68C92EC80EF88BAB27C88EC5BBB" xlink:to="lab_us-gaap_OperatingLeaseLiabilityCurrent_94CFE68C92EC80EF88BAB27C88EC5BBB" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Finance </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C" xlink:to="lab_us-gaap_FinanceLeaseLiabilityCurrent_9A850DB928D72C28B284B27C88ECCE5C" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncurrent </link:label>
<link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Noncurrent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A" xlink:to="lab_us-gaap_LiabilitiesNoncurrentAbstract_BD2BC2361AE0891C188BB27C88EC1A2A" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1_negatedLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Operating </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_F2215B83925C0A419591B27C88ECA1A1" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Finance </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42" xlink:to="lab_us-gaap_FinanceLeaseLiabilityNoncurrent_BB9E9243D60D71158441B27C88EC2B42" xlink:type="arc"/>
<link:label id="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876_negatedTotalLabel_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US"> Total lease liabilities </link:label>
<link:label id="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876_label_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Total lease liabilities </link:label>
<link:label id="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876_documentation_en-US" xlink:label="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Present value of lessee's discounted obligation for lease payments from operating and finance leases. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_OperatingAndFinanceLeasesLiability" xlink:label="loc_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:to="lab_nvee_OperatingAndFinanceLeasesLiability_408CB02FCB67518B1D6EB27C88EDF876" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_D2641FCC458302393EBEB27C88ED0AFD_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_D2641FCC458302393EBEB27C88ED0AFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_D2641FCC458302393EBEB27C88ED0AFD_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_D2641FCC458302393EBEB27C88ED0AFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] </link:label>
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<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_F617627D0C196A926986B27C88ED51A8_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_F617627D0C196A926986B27C88ED51A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] </link:label>
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<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList_AE1432F5F5B9E7158978B28BD16FE8AE_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList_AE1432F5F5B9E7158978B28BD16FE8AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList_0FD51CD5B5664C8622D2B27C88EDE4EF_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList_0FD51CD5B5664C8622D2B27C88EDE4EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] </link:label>
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<link:label id="lab_nvee_OperatingLeaseRightOfUseAssetAccumulatedAmortization_47A92D81AEC31B23355EB27C88ED6FCB_label_en-US" xlink:label="lab_nvee_OperatingLeaseRightOfUseAssetAccumulatedAmortization_47A92D81AEC31B23355EB27C88ED6FCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease Right Of Use Asset Accumulated Amortization </link:label>
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<link:loc xlink:href="nvee-20200627.xsd#nvee_OperatingLeaseRightOfUseAssetAccumulatedAmortization" xlink:label="loc_nvee_OperatingLeaseRightOfUseAssetAccumulatedAmortization_47A92D81AEC31B23355EB27C88ED6FCB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_77C8108A739A8A1A3A77B27C88EE55FC_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_77C8108A739A8A1A3A77B27C88EE55FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Financing right of-use lease assets </link:label>
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<link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_AD5D216C28AF9B4FE5E86C5F15F6A15E_terseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_AD5D216C28AF9B4FE5E86C5F15F6A15E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Summary of Significant Accounting Policies </link:label>
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<link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, par value (in dollars per share) </link:label>
<link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Par or Stated Value Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare_BD1B6C40AEDE3145E1BF6C5F15D1A538" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares authorized (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares Authorized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F" xlink:to="lab_us-gaap_CommonStockSharesAuthorized_92D0AA0196744EEA83FD6C5F15D1F78F" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares issued (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares, Issued </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC" xlink:to="lab_us-gaap_CommonStockSharesIssued_7ABCAB91DDB22B226B906C5F15D106DC" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares outstanding (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares, Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380" xlink:to="lab_us-gaap_CommonStockSharesOutstanding_36DA9B954D22F193E4CC6C5F15D16380" xlink:type="arc"/>
<link:label id="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A_terseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Organization and Nature of Business Operations </link:label>
<link:label id="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A" xlink:to="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_50064C6952F7BFF71D6B6C5F152B7F3A" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementAbstract_59587975F8E61C9B6D5BB27C8A2A3B3B_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_59587975F8E61C9B6D5BB27C8A2A3B3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_59587975F8E61C9B6D5BB27C8A2A3B3B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_59587975F8E61C9B6D5BB27C8A2A3B3B" xlink:to="lab_us-gaap_IncomeStatementAbstract_59587975F8E61C9B6D5BB27C8A2A3B3B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962_terseLabel_en-US" xlink:label="lab_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Direct costs: </link:label>
<link:label id="lab_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962_label_en-US" xlink:label="lab_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Operating Costs [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DirectOperatingCostsAbstract" xlink:label="loc_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962" xlink:to="lab_us-gaap_DirectOperatingCostsAbstract_FD3889F78D8888A9A927B27C8A2BD962" xlink:type="arc"/>
<link:label id="lab_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8_terseLabel_en-US" xlink:label="lab_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Salaries and wages </link:label>
<link:label id="lab_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8_label_en-US" xlink:label="lab_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost, Direct Labor </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostDirectLabor" xlink:label="loc_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8" xlink:to="lab_us-gaap_CostDirectLabor_A925649B92BD24220BE2B27C8A2B54A8" xlink:type="arc"/>
<link:label id="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2_terseLabel_en-US" xlink:label="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Sub-consultant services </link:label>
<link:label id="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2_label_en-US" xlink:label="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sub-consultant services </link:label>
<link:label id="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2_documentation_en-US" xlink:label="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The cost of sub-consultant services. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_CostOfSubConsultantServices" xlink:label="loc_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:to="lab_nvee_CostOfSubConsultantServices_C67C2D5A8FB050816F56B27C8A2B09A2" xlink:type="arc"/>
<link:label id="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59_terseLabel_en-US" xlink:label="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other direct costs </link:label>
<link:label id="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59_label_en-US" xlink:label="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other direct costs </link:label>
<link:label id="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59_documentation_en-US" xlink:label="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other cost of labor directly related to good produced and service rendered. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_OtherDirectCosts" xlink:label="loc_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:to="lab_nvee_OtherDirectCosts_D4077A82FFB892A91FA0B27C8A2BFC59" xlink:type="arc"/>
<link:label id="lab_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77_totalLabel_en-US" xlink:label="lab_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total direct costs </link:label>
<link:label id="lab_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77_label_en-US" xlink:label="lab_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Operating Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DirectOperatingCosts" xlink:label="loc_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77" xlink:to="lab_us-gaap_DirectOperatingCosts_7193EF435DB2D2612601B27C8A2BED77" xlink:type="arc"/>
<link:label id="lab_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47_totalLabel_en-US" xlink:label="lab_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Gross Profit </link:label>
<link:label id="lab_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47_label_en-US" xlink:label="lab_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gross Profit </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47" xlink:to="lab_us-gaap_GrossProfit_A70E3127AF25E8EF5AEDB27C8A2B9B47" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Expenses: </link:label>
<link:label id="lab_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Expenses [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F" xlink:to="lab_us-gaap_OperatingExpensesAbstract_1FD86E27C5CEA93C0835B27C8A2C6B1F" xlink:type="arc"/>
<link:label id="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6_terseLabel_en-US" xlink:label="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Salaries and wages, payroll taxes and benefits </link:label>
<link:label id="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6_label_en-US" xlink:label="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Salaries and wages, payroll taxes and benefits </link:label>
<link:label id="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6_documentation_en-US" xlink:label="lab_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Labor And Related Expense Excluding Stock Based Compensation </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation" xlink:label="loc_nvee_LaborAndRelatedExpenseExcludingStockBasedCompensation_D40A6587E2A47CF2AB31B27C8A2CF9A6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_57472D7E1140B9307AF2B27C8A2C9FA4_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense_57472D7E1140B9307AF2B27C8A2C9FA4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> General and administrative </link:label>
<link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_57472D7E1140B9307AF2B27C8A2C9FA4_label_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense_57472D7E1140B9307AF2B27C8A2C9FA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> General and Administrative Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_57472D7E1140B9307AF2B27C8A2C9FA4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DepreciationAndAmortization_0BB5D2DAAFCB0314D09DB27C8A2C91D4_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAndAmortization_0BB5D2DAAFCB0314D09DB27C8A2C91D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation and amortization </link:label>
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<link:label id="lab_us-gaap_OperatingExpenses_83ECD9ACD770AB9AEEA0B27C8A2DD32B_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingExpenses_83ECD9ACD770AB9AEEA0B27C8A2DD32B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating expenses </link:label>
<link:label id="lab_us-gaap_OperatingExpenses_83ECD9ACD770AB9AEEA0B27C8A2DD32B_label_en-US" xlink:label="lab_us-gaap_OperatingExpenses_83ECD9ACD770AB9AEEA0B27C8A2DD32B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Expenses </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_C9C23343A811CBA96007B27C8A2DCEF4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetIncomeLoss_4652507A2731BD701A1DB27C8A2EE8CB_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_4652507A2731BD701A1DB27C8A2EE8CB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net Income and Comprehensive Income </link:label>
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<link:label id="lab_us-gaap_EarningsPerShareBasic_26FFEBC2D40D7E14A27EB27C8A2EF95B_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_26FFEBC2D40D7E14A27EB27C8A2EF95B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Basic (in dollars per Share) </link:label>
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<link:label id="lab_nvee_WeightedAverageCommonSharesOutstandingAbstract_25417FAD3D065E164229B27C8A2E8DDF_terseLabel_en-US" xlink:label="lab_nvee_WeightedAverageCommonSharesOutstandingAbstract_25417FAD3D065E164229B27C8A2E8DDF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted average common shares outstanding: </link:label>
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<link:label id="lab_us-gaap_NoncompeteAgreementsMember_8E223572A53B8A10DE40B27C898400CB_label_en-US" xlink:label="lab_us-gaap_NoncompeteAgreementsMember_8E223572A53B8A10DE40B27C898400CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncompete Agreements [Member] </link:label>
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<link:label id="lab_nvee_DevelopedTechnologyMember_1114F8593D4221BB44CCB27C8984099C_terseLabel_en-US" xlink:label="lab_nvee_DevelopedTechnologyMember_1114F8593D4221BB44CCB27C8984099C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Developed Technology </link:label>
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<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_27AFB9D5F63617D0F1FDB27C898599AC_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_27AFB9D5F63617D0F1FDB27C898599AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets [Line Items] </link:label>
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<link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_2C42B8DB17F95605A50EBAC18CF1443B_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_2C42B8DB17F95605A50EBAC18CF1443B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label>
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<link:label id="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC_terseLabel_en-US" xlink:label="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Non-cash lease expense </link:label>
<link:label id="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC_label_en-US" xlink:label="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Non-cash lease expense </link:label>
<link:label id="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC_documentation_en-US" xlink:label="lab_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of net increase (decrease) in right-of-use assets and operating lease liabilities during the period. </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_NetChangeInOperatingLeases" xlink:label="loc_nvee_NetChangeInOperatingLeases_8B5142855C8BF6D66771BAC18CF29CAC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_B0AEA0B41E9FB1C00F25BAC18CF3D223_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_B0AEA0B41E9FB1C00F25BAC18CF3D223" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Provision for doubtful accounts </link:label>
<link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_B0AEA0B41E9FB1C00F25BAC18CF3D223_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_B0AEA0B41E9FB1C00F25BAC18CF3D223" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, Credit Loss Expense (Reversal) </link:label>
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<link:label id="lab_us-gaap_ShareBasedCompensation_466F37902A3D4C7BA931BAC18CF31BFA_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_466F37902A3D4C7BA931BAC18CF31BFA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock-based compensation </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensation_466F37902A3D4C7BA931BAC18CF31BFA_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_466F37902A3D4C7BA931BAC18CF31BFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Noncash Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_466F37902A3D4C7BA931BAC18CF31BFA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_14616E7865B25DC7DA1EBAC18CF3543A_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_14616E7865B25DC7DA1EBAC18CF3543A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Change in fair value of contingent consideration </link:label>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_14616E7865B25DC7DA1EBAC18CF3543A_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_14616E7865B25DC7DA1EBAC18CF3543A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_14616E7865B25DC7DA1EBAC18CF3543A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_143C4063CA8CF3FBCB55BAC18CF3769A_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_143C4063CA8CF3FBCB55BAC18CF3769A" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Gain on disposals of property and equipment </link:label>
<link:label id="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_143C4063CA8CF3FBCB55BAC18CF3769A_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_143C4063CA8CF3FBCB55BAC18CF3769A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Disposition of Property Plant Equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_143C4063CA8CF3FBCB55BAC18CF3769A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_65579A2F692D7B4D6C85BAC18CF3CCCB_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_65579A2F692D7B4D6C85BAC18CF3CCCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income taxes </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_65579A2F692D7B4D6C85BAC18CF3CCCB_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_65579A2F692D7B4D6C85BAC18CF3CCCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Taxes and Tax Credits </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_65579A2F692D7B4D6C85BAC18CF3CCCB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_644451B34F76A2EF76E9BAC18CF4DBBB_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_644451B34F76A2EF76E9BAC18CF4DBBB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Changes in operating assets and liabilities, net of impact of acquisitions: </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_644451B34F76A2EF76E9BAC18CF4DBBB_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_644451B34F76A2EF76E9BAC18CF4DBBB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Operating Capital [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_644451B34F76A2EF76E9BAC18CF4DBBB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B49FAA327D6E21EB1BABAC18CF4E3A6_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B49FAA327D6E21EB1BABAC18CF4E3A6" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Billed receivables </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B49FAA327D6E21EB1BABAC18CF4E3A6_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B49FAA327D6E21EB1BABAC18CF4E3A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Receivable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0B49FAA327D6E21EB1BABAC18CF4E3A6" xlink:type="locator"/>
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<link:label id="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77_negatedLabel_en-US" xlink:label="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Unbilled receivables </link:label>
<link:label id="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77_label_en-US" xlink:label="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables </link:label>
<link:label id="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77_documentation_en-US" xlink:label="lab_nvee_IncreaseDecreaseInContractWithCustomerFromUnbilledReceivables_AC2A0ACC465C9EB9C402BAC18CF49B77" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The increase (decrease) during the reporting period of the amount of unbilled receivables from contracts with customers for work performed for which billing has not occurred, net of uncollectible accounts. </link:label>
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<link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_D0AB9758D5BF629619AABAC18CF48534_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_D0AB9758D5BF629619AABAC18CF48534" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Prepaid expenses and other assets </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_D0AB9758D5BF629619AABAC18CF48534_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_D0AB9758D5BF629619AABAC18CF48534" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Prepaid Expense and Other Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_D0AB9758D5BF629619AABAC18CF48534" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F88F320026CB4242E1F8BAC18CF4504D_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F88F320026CB4242E1F8BAC18CF4504D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Payable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_F88F320026CB4242E1F8BAC18CF4504D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_4DF86DCEA0BCAE9349C5BAC18CF5C099_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_4DF86DCEA0BCAE9349C5BAC18CF5C099" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Accrued liabilities </link:label>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_6A2CB62BF019F7272BBFBAC18CF51B72_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_6A2CB62BF019F7272BBFBAC18CF51B72" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Income taxes payable </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_6A2CB62BF019F7272BBFBAC18CF51B72" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_7B7C2E24FE1B25EE5F38BAC18CF52134_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_7B7C2E24FE1B25EE5F38BAC18CF52134" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Billings in excess of costs and estimated earnings on uncompleted contracts </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_7B7C2E24FE1B25EE5F38BAC18CF52134_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_7B7C2E24FE1B25EE5F38BAC18CF52134" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Contract with Customer, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_7B7C2E24FE1B25EE5F38BAC18CF52134" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Deposits </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Client Funds Held </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInClientFundsHeld" xlink:label="loc_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464" xlink:to="lab_us-gaap_IncreaseDecreaseInClientFundsHeld_7C510A8A46825F8EAD43BAC18CF5E464" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by operating activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_556950D5BCBF1C1B0F95BAC18CF519E8" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash Flows From Investing Activities: </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6067AFF52295F8C7AC5EBAC18CF555CA" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Cash paid for acquisitions (net of cash received from acquisitions) </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Businesses, Net of Cash Acquired </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_87D9C6CA08A0538D2AF0BAC18CF67D8F" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from sale of assets </link:label>
<link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Sale of Productive Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611" xlink:to="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_144DA3D789C060A2FD71BAC18CF6A611" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Purchase of property and equipment </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Property, Plant, and Equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_7C64C47C5872ACCF0BE4BAC18CF62634" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash used in investing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_A69B7986E300F8C401CBBAC18CF621E3" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash Flows From Financing Activities: </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_ED8657543FA183302490BAC18CF6A351" xlink:type="arc"/>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments on notes payable </link:label>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112" xlink:to="lab_us-gaap_RepaymentsOfLongTermDebt_945FE2E2B102D1AD4A65BAC18CF7D112" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments of contingent consideration </link:label>
<link:label id="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47_label_en-US" xlink:label="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payment for Contingent Consideration Liability, Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47" xlink:to="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_A795AB17E2D66725D3F5BAC18CF76F47" xlink:type="arc"/>
<link:label id="lab_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments of borrowings from Senior Credit Facility </link:label>
<link:label id="lab_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Lines of Credit </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF" xlink:to="lab_us-gaap_RepaymentsOfLinesOfCredit_C1F3B1ABF9F6EA954F43BAC18CF753AF" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Payments of debt issuance costs </link:label>
<link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments of Debt Issuance Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794" xlink:to="lab_us-gaap_PaymentsOfDebtIssuanceCosts_6CDD6FC850B5631A5890BAC18CF70794" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BBFFC54BE080C3A4C4DBAC18CF70BE0_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BBFFC54BE080C3A4C4DBAC18CF70BE0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash (used in) provided by financing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BBFFC54BE080C3A4C4DBAC18CF70BE0_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BBFFC54BE080C3A4C4DBAC18CF70BE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BBFFC54BE080C3A4C4DBAC18CF70BE0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_41F2FCE0BD396273954BBAC18CF8AFF4_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_41F2FCE0BD396273954BBAC18CF8AFF4" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net increase in Cash and Cash Equivalents </link:label>
<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_41F2FCE0BD396273954BBAC18CF8AFF4_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_41F2FCE0BD396273954BBAC18CF8AFF4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect </link:label>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_10F21AB830A49A71215ABAC18CF8C7BB_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_10F21AB830A49A71215ABAC18CF8C7BB" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents – end of period </link:label>
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<link:label id="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_0D1C2193AF968E0264E8BAC18CF80648_terseLabel_en-US" xlink:label="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_0D1C2193AF968E0264E8BAC18CF80648" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Non-cash investing and financing activities: </link:label>
<link:label id="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_0D1C2193AF968E0264E8BAC18CF80648_label_en-US" xlink:label="lab_us-gaap_NoncashInvestingAndFinancingItemsAbstract_0D1C2193AF968E0264E8BAC18CF80648" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncash Investing and Financing Items [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_0D1C2193AF968E0264E8BAC18CF80648" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NotesIssued1_483D0B27231F1F54D105BAC18CF8983F_terseLabel_en-US" xlink:label="lab_us-gaap_NotesIssued1_483D0B27231F1F54D105BAC18CF8983F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notes payable and other obligations issued for acquisitions </link:label>
<link:label id="lab_us-gaap_NotesIssued1_483D0B27231F1F54D105BAC18CF8983F_label_en-US" xlink:label="lab_us-gaap_NotesIssued1_483D0B27231F1F54D105BAC18CF8983F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Notes Issued </link:label>
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<link:label id="lab_us-gaap_StockIssued1_44D7BD67FC88F296533FBAC18CF9F0C7_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssued1_44D7BD67FC88F296533FBAC18CF9F0C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock issuance for acquisitions </link:label>
<link:label id="lab_us-gaap_StockIssued1_44D7BD67FC88F296533FBAC18CF9F0C7_label_en-US" xlink:label="lab_us-gaap_StockIssued1_44D7BD67FC88F296533FBAC18CF9F0C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Issued </link:label>
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<link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_437D18D7AE1BBF56DF4ABAC18CF91773_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_437D18D7AE1BBF56DF4ABAC18CF91773" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases </link:label>
<link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_437D18D7AE1BBF56DF4ABAC18CF91773_label_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_437D18D7AE1BBF56DF4ABAC18CF91773" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Expenditures Incurred but Not yet Paid </link:label>
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<link:label id="lab_nvee_PaymentOfContingentConsiderationWithCommonStock_55DA12957AD0CA6E7354BAC18CF9E54B_terseLabel_en-US" xlink:label="lab_nvee_PaymentOfContingentConsiderationWithCommonStock_55DA12957AD0CA6E7354BAC18CF9E54B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payment of contingent consideration with common stock </link:label>
<link:label id="lab_nvee_PaymentOfContingentConsiderationWithCommonStock_55DA12957AD0CA6E7354BAC18CF9E54B_label_en-US" xlink:label="lab_nvee_PaymentOfContingentConsiderationWithCommonStock_55DA12957AD0CA6E7354BAC18CF9E54B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payment of contingent consideration and other obligations with common stock </link:label>
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<link:loc xlink:href="nvee-20200627.xsd#nvee_PaymentOfContingentConsiderationWithCommonStock" xlink:label="loc_nvee_PaymentOfContingentConsiderationWithCommonStock_55DA12957AD0CA6E7354BAC18CF9E54B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2032B5FA0F2ED3C605486C5F1559FB12_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2032B5FA0F2ED3C605486C5F1559FB12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment </link:label>
<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2032B5FA0F2ED3C605486C5F1559FB12_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2032B5FA0F2ED3C605486C5F1559FB12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2032B5FA0F2ED3C605486C5F1559FB12" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_EABBCDB76219E8F97ED16C5F15591830_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_EABBCDB76219E8F97ED16C5F15591830" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue From External Customers by Geographic Areas </link:label>
<link:label id="lab_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_EABBCDB76219E8F97ED16C5F15591830_label_en-US" xlink:label="lab_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_EABBCDB76219E8F97ED16C5F15591830" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from External Customers by Geographic Areas [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_4115B1305BDF284E0A816C5F155A2413_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_4115B1305BDF284E0A816C5F155A2413" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue By Major Customers by Reporting Segments </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock_4115B1305BDF284E0A816C5F155A2413" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_DFADD313F5F434F59B156C5F155A2A71_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_DFADD313F5F434F59B156C5F155A2A71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue From External Customers by Products And Services </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_DFADD313F5F434F59B156C5F155A2A71" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_356D319EB20064066F6F6C5F1595B376_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_356D319EB20064066F6F6C5F1595B376" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information </link:label>
<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_356D319EB20064066F6F6C5F1595B376_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_356D319EB20064066F6F6C5F1595B376" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information [Abstract] </link:label>
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<link:label id="lab_us-gaap_OperatingLeasePayments_114E0E3332C5D09F51036C5F15963144_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_114E0E3332C5D09F51036C5F15963144" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating cash flows from operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeasePayments_114E0E3332C5D09F51036C5F15963144_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_114E0E3332C5D09F51036C5F15963144" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Payments </link:label>
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<link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Financing cash flows from finance leases </link:label>
<link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241_label_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Principal Payments </link:label>
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<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241" xlink:to="lab_us-gaap_FinanceLeasePrincipalPayments_8DFEE2B194C38F75BA446C5F1596E241" xlink:type="arc"/>
<link:label id="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD_terseLabel_en-US" xlink:label="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Right-of-use assets obtained in exchange for lease obligations </link:label>
<link:label id="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD_label_en-US" xlink:label="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-use Assets Obtained in Exchange for Lease Obligations [Abstract] </link:label>
<link:label id="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD_documentation_en-US" xlink:label="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Right-of-use assets obtained in exchange for lease obligations [Abstract] </link:label>
<link:loc xlink:href="nvee-20200627.xsd#nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract" xlink:label="loc_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:to="lab_nvee_RightofuseAssetsObtainedinExchangeforLeaseObligationsAbstract_03F5CD63D1234EEDE2206C5F1596C0BD" xlink:type="arc"/>
<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating leases </link:label>
<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81_label_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-Use Asset Obtained in Exchange for Operating Lease Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81" xlink:to="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0200375E44B30581B81E6C5F15967A81" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Reportable Segments </link:label>
<link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9_label_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9" xlink:to="lab_us-gaap_SegmentReportingDisclosureTextBlock_C03AAF29193243E46F476C5F154B52A9" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Restricted Stock Unit, Activity </link:label>
<link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_6BD58F284A7A10D615B86C5F15B5041E" xlink:type="arc"/>
</link:labelLink>
</link:linkbase>

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