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Atel 15, LLC – ‘10-K’ for 12/31/20 – ‘EX-101.LAB’

On:  Tuesday, 3/30/21, at 6:47am ET   ·   For:  12/31/20   ·   Accession #:  1558370-21-3673   ·   File #:  0-54931

Previous ‘10-K’:  ‘10-K’ on 3/26/20 for 12/31/19   ·   Next:  ‘10-K’ on 3/18/22 for 12/31/21   ·   Latest:  ‘10-K’ on 3/21/24 for 12/31/23   ·   1 Reference:  To:  Atel 15, LLC – ‘424B3’ on 11/1/11

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

 3/30/21  Atel 15, LLC                      10-K       12/31/20   69:6.2M                                   Toppan Merrill Bridge/FA

Annual Report   —   Form 10-K
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML    557K 
 2: EX-4.1      Instrument Defining the Rights of Security Holders  HTML     23K 
 3: EX-14.1     Code of Ethics                                      HTML     28K 
 4: EX-31.1     Certification -- §302 - SOA'02                      HTML     27K 
 5: EX-31.2     Certification -- §302 - SOA'02                      HTML     27K 
 6: EX-32.1     Certification -- §906 - SOA'02                      HTML     23K 
 7: EX-32.2     Certification -- §906 - SOA'02                      HTML     23K 
14: R1          Document and Entity Information                     HTML     55K 
15: R2          Balance Sheets                                      HTML     68K 
16: R3          Statements of Operations                            HTML     86K 
17: R4          Statements of Changes in Members' Capital           HTML     36K 
18: R5          Statements of Changes in Members' Capital           HTML     22K 
                (Parenthetical)                                                  
19: R6          Statements of Cash Flows                            HTML    105K 
20: R7          Organization and Limited Liability Company Matters  HTML     27K 
21: R8          Summary of Significant Accounting Policies          HTML     85K 
22: R9          Concentration of Credit Risk and Major Customers    HTML     57K 
23: R10         Notes Receivable, Net                               HTML     22K 
24: R11         Equipment Under Operating Leases, Net               HTML    155K 
25: R12         Allowance for Credit Losses                         HTML     57K 
26: R13         Related Party Transactions                          HTML     38K 
27: R14         Non-Recourse Debt                                   HTML     48K 
28: R15         Borrowing Facilities                                HTML     22K 
29: R16         Commitments                                         HTML     23K 
30: R17         Guarantees                                          HTML     23K 
31: R18         Members' Capital                                    HTML     38K 
32: R19         Fair Value Measurements                             HTML    270K 
33: R20         Global Health Emergency                             HTML     23K 
34: R21         Summary of Significant Accounting Policies          HTML    117K 
                (Policy)                                                         
35: R22         Summary of Significant Accounting Policies          HTML     61K 
                (Tables)                                                         
36: R23         Concentration of Credit Risk and Major Customers    HTML     59K 
                (Tables)                                                         
37: R24         Equipment Under Operating Leases, Net (Tables)      HTML    158K 
38: R25         Allowance for Credit Losses (Tables)                HTML     57K 
39: R26         Related Party Transactions (Tables)                 HTML     35K 
40: R27         Non-Recourse Debt (Tables)                          HTML     45K 
41: R28         Members' Capital (Tables)                           HTML     36K 
42: R29         Fair Value Measurements (Tables)                    HTML    271K 
43: R30         Organization and Limited Liability Company Matters  HTML     54K 
                (Narrative) (Details)                                            
44: R31         Summary of Significant Accounting Policies          HTML     67K 
                (Narrative) (Details)                                            
45: R32         Summary of Significant Accounting Policies          HTML     26K 
                (Schedule of Differences Between Book Value and                  
                Tax Basis of Net Assets) (Details)                               
46: R33         Summary of Significant Accounting Policies          HTML     36K 
                (Reconciliation of Net Income (Loss) Reported in                 
                Financial Statements and Federal Tax Return)                     
                (Details)                                                        
47: R34         Concentration of Credit Risk and Major Customers    HTML     43K 
                (Schedule of Leasing and Lending Revenues)                       
                (Details)                                                        
48: R35         Equipment Under Operating Leases, Net (Narrative)   HTML     35K 
                (Details)                                                        
49: R36         Equipment Under Operating Leases, Net (Investment   HTML     35K 
                in Leases) (Details)                                             
50: R37         Equipment Under Operating Leases, Net (Property on  HTML     52K 
                Operating Leases) (Details)                                      
51: R38         Equipment Under Operating Leases, Net (Future       HTML     33K 
                Minimum Lease Payments Receivable) (Details)                     
52: R39         Equipment Under Operating Leases, Net (Schedule of  HTML     45K 
                Useful Lives of Lease Assets) (Details)                          
53: R40         Allowance for Credit Losses (Activity in Allowance  HTML     33K 
                for Doubtful Accounts) (Details)                                 
54: R41         Related Party Transactions (Managing Member and/or  HTML     26K 
                Affiliates Earned Commissions and Billed for                     
                Reimbursements Pursuant to Operating Agreement)                  
                (Details)                                                        
55: R42         Non-Recourse Debt (Narrative) (Details)             HTML     36K 
56: R43         Non-Recourse Debt (Future Minimum Payments of       HTML     55K 
                Non-Recourse Debt) (Details)                                     
57: R44         Borrowing Facilities (Narrative) (Details)          HTML     22K 
58: R45         Commitments (Narrative) (Details)                   HTML     21K 
59: R46         Members' Capital (Narrative) (Details)              HTML     44K 
60: R47         Members' Capital (Distributions to Other Members)   HTML     28K 
                (Details)                                                        
61: R48         Fair Value Measurements (Narrative) (Details)       HTML     24K 
62: R49         Fair Value Measurements (Fair Value, Warrants       HTML     27K 
                Measured on Recurring Basis) (Details)                           
63: R50         Fair Value Measurements (Fair Value, Investment     HTML     30K 
                Securities Measured on Recurring Basis) (Details)                
64: R51         Fair Value Measurements (Fair Value Measurement of  HTML     24K 
                Assets and Liabilities Measured at Fair Value on a               
                Non-Recurring Basis) (Details)                                   
65: R52         Fair Value Measurements (Summary of Valuation       HTML     66K 
                Techniques and Significant Unobservable Inputs                   
                Used) (Details)                                                  
66: R53         Fair Value Measurements (Estimated Fair Values of   HTML     40K 
                Financial Instruments) (Details)                                 
68: XML         IDEA XML File -- Filing Summary                      XML    123K 
67: EXCEL       IDEA Workbook of Financial Reports                  XLSX     78K 
 8: EX-101.INS  XBRL Instance -- atel-20201231                       XML   1.81M 
10: EX-101.CAL  XBRL Calculations -- atel-20201231_cal               XML    171K 
11: EX-101.DEF  XBRL Definitions -- atel-20201231_def                XML    373K 
12: EX-101.LAB  XBRL Labels -- atel-20201231_lab                     XML    822K 
13: EX-101.PRE  XBRL Presentations -- atel-20201231_pre              XML    677K 
 9: EX-101.SCH  XBRL Schema -- atel-20201231                         XSD    162K 
69: ZIP         XBRL Zipped Folder -- 0001558370-21-003673-xbrl      Zip    128K

‘EX-101.LAB’   —   XBRL Labels — atel-20201231_lab

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US"> Entity Registrant Name </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US"> Entity Registrant Name </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US"> Document Period End Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US"> Document Period End Date </label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US"> Document Fiscal Year Focus </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US"> Document Fiscal Year Focus </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US"> Document Fiscal Period Focus </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US"> Document Fiscal Period Focus </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US"> Entity Central Index Key </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US"> Entity Central Index Key </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US"> Current Fiscal Year End Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US"> Current Fiscal Year End Date </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US"> Amendment Flag </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US"> Amendment Flag </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US"> Entity Interactive Data Current </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US"> Entity Filer Category </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US"> Entity Filer Category </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US"> Entity Small Business </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US"> Smaller Reporting Company </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="dei_EntityVoluntaryFilers_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US"> Entity Voluntary Filers </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US"> Entity Current Reporting Status </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US"> Entity Well-known Seasoned Issuer </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US"> Entity Emerging Growth Company </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US"> Entity Shell Company </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="dei_EntityPublicFloat_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPublicFloat_lbl" xml:lang="en-US"> Entity Public Float </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US"> Entity Common Stock Shares Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US"> Entity Units Outstanding </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US"> Balance Sheets [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US"> Assets [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US"> ASSETS </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Cash And Cash Equivalents At Carrying Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Cash and cash equivalents at end of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Cash and cash equivalents at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Cash and cash equivalents </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNet" xlink:label="us-gaap_AccountsReceivableNet"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNet" xlink:to="us-gaap_AccountsReceivableNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNet_lbl" xml:lang="en-US"> Accounts Receivable Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsReceivableNet_lbl" xml:lang="en-US"> Accounts receivable, net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromAffiliates" xlink:label="us-gaap_DueFromAffiliates"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DueFromAffiliates" xlink:to="us-gaap_DueFromAffiliates_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DueFromAffiliates_lbl" xml:lang="en-US"> Due from Affiliates </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DueFromAffiliates_lbl" xml:lang="en-US"> Due from Managing Member and affiliates </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Investments" xlink:label="us-gaap_Investments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Investments" xlink:to="us-gaap_Investments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Investments_lbl" xml:lang="en-US"> Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Investments_lbl" xml:lang="en-US"> Investment in securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeFairValueOfDerivativeNet" xlink:to="us-gaap_DerivativeFairValueOfDerivativeNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xml:lang="en-US"> Derivative, Fair Value, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xml:lang="en-US"> Fair value of warrants at end of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xml:lang="en-US"> Fair value of warrants at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xml:lang="en-US"> Warrants, fair value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DerivativeFairValueOfDerivativeNet_lbl" xml:lang="en-US"> Warrants, fair value </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoncurrentAssets" xlink:label="us-gaap_NoncurrentAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncurrentAssets" xlink:to="us-gaap_NoncurrentAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoncurrentAssets_lbl" xml:lang="en-US"> Long-Lived Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_NoncurrentAssets_lbl" xml:lang="en-US"> Balance December 31, 2020 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_NoncurrentAssets_lbl" xml:lang="en-US"> Balance December 31, 2019 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NoncurrentAssets_lbl" xml:lang="en-US"> Equipment under operating leases, net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssets" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssets" xlink:to="us-gaap_PrepaidExpenseAndOtherAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xml:lang="en-US"> Prepaid Expense And Other Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xml:lang="en-US"> Prepaid expenses and other assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US"> Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US"> Total assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US"> LIABILITIES AND MEMBERS' CAPITAL </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US"> Accounts Payable And Accrued Liabilities Current And Noncurrent [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US"> Accounts payable and accrued liabilities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent" xlink:label="us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent" xlink:to="us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent_lbl" xml:lang="en-US"> Accounts Payable Related Parties Current And Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent_lbl" xml:lang="en-US"> Due to Managing Member and affiliates </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_DistributionsPayableCurrentAndNoncurrent" xlink:label="cik0001519117_DistributionsPayableCurrentAndNoncurrent"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_DistributionsPayableCurrentAndNoncurrent" xlink:to="cik0001519117_DistributionsPayableCurrentAndNoncurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_DistributionsPayableCurrentAndNoncurrent_lbl" xml:lang="en-US"> Carrying value as of the balance sheet date of distributions declared but unpaid. Such distributions represent a return of and/or return on members/partners capital investment. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_DistributionsPayableCurrentAndNoncurrent_lbl" xml:lang="en-US"> Distributions Payable Current And Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_DistributionsPayableCurrentAndNoncurrent_lbl" xml:lang="en-US"> Accrued distributions to Other Members </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_OtherAccountsPayableAndAccruedLiabilities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_OtherAccountsPayableAndAccruedLiabilities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US"> Other Accounts Payable And Accrued Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US"> Other </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebt" xlink:label="us-gaap_SecuredDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SecuredDebt" xlink:to="us-gaap_SecuredDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SecuredDebt_lbl" xml:lang="en-US"> Secured Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SecuredDebt_lbl" xml:lang="en-US"> Non-recourse debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_SecuredDebt_lbl" xml:lang="en-US"> Long-term debt, total </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueLeasesNet" xlink:label="us-gaap_DeferredRevenueLeasesNet"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueLeasesNet" xlink:to="us-gaap_DeferredRevenueLeasesNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenueLeasesNet_lbl" xml:lang="en-US"> Deferred Revenue, Leases, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DeferredRevenueLeasesNet_lbl" xml:lang="en-US"> Unearned operating lease income </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US"> Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US"> Total liabilities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US"> Commitments And Contingencies </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US"> Commitments and contingencies </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US"> Members' capital: </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ManagingMembersCapitalAccount" xlink:label="cik0001519117_ManagingMembersCapitalAccount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ManagingMembersCapitalAccount" xlink:to="cik0001519117_ManagingMembersCapitalAccount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ManagingMembersCapitalAccount_lbl" xml:lang="en-US"> Managing Members Capital Account. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ManagingMembersCapitalAccount_lbl" xml:lang="en-US"> Managing Members Capital Account </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ManagingMembersCapitalAccount_lbl" xml:lang="en-US"> Managing Member </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OtherMembersCapitalAccount" xlink:label="cik0001519117_OtherMembersCapitalAccount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OtherMembersCapitalAccount" xlink:to="cik0001519117_OtherMembersCapitalAccount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OtherMembersCapitalAccount_lbl" xml:lang="en-US"> The other members' ownership share in the capital account balance. The other members are members of a publicly traded limited liability company. Other members have limited liability and do not manage the Company. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OtherMembersCapitalAccount_lbl" xml:lang="en-US"> Other Members Capital Account </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OtherMembersCapitalAccount_lbl" xml:lang="en-US"> Other Members </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="us-gaap_MembersEquity"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MembersEquity" xlink:to="us-gaap_MembersEquity_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MembersEquity_lbl" xml:lang="en-US"> Members Equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_MembersEquity_lbl" xml:lang="en-US"> Ending Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_MembersEquity_lbl" xml:lang="en-US"> Beginning Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_MembersEquity_lbl" xml:lang="en-US"> Total Members' capital </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_MembersEquity_lbl" xml:lang="en-US"> Financial statement basis of net assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US"> Liabilities and Equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US"> Total liabilities and Members' capital </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US"> Statements of Operations [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_RevenuesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenuesAbstract_lbl" xml:lang="en-US"> Revenues [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesAbstract" xlink:label="us-gaap_LeasesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeasesAbstract" xlink:to="us-gaap_LeasesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeasesAbstract_lbl" xml:lang="en-US"> Leases [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LeasesAbstract_lbl" xml:lang="en-US"> Leasing and lending activities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome" xlink:label="us-gaap_OperatingLeaseLeaseIncome"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLeaseIncome" xlink:to="us-gaap_OperatingLeaseLeaseIncome_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLeaseIncome_lbl" xml:lang="en-US"> Operating Leases Income Statement Lease Revenue </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeaseLeaseIncome_lbl" xml:lang="en-US"> Operating leases revenue, net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="us-gaap_InterestAndDividendIncomeOperating"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="us-gaap_InterestAndDividendIncomeOperating_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestAndDividendIncomeOperating_lbl" xml:lang="en-US"> Interest And Dividend Income Operating </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestAndDividendIncomeOperating_lbl" xml:lang="en-US"> Interest on notes receivable </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_GainsLossesOnSalesOrDispositionOfAssets" xlink:label="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets" xlink:to="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets_lbl" xml:lang="en-US"> The net gain or loss resulting from the sale, transfer, termination, or other disposition of lease equipment or notes receivable during the period. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets_lbl" xml:lang="en-US"> Gains Losses On Sales Or Disposition Of Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets_lbl" xml:lang="en-US"> (Gain) loss on sales of operating lease assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_GainsLossesOnSalesOrDispositionOfAssets_lbl" xml:lang="en-US"> Gain (loss) on sales of operating lease assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncome" xlink:to="us-gaap_OtherIncome_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US"> Other Income </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US"> Other revenue </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US"> Revenues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US"> Total operating revenues </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US"> Expenses: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Depreciation" xlink:label="us-gaap_Depreciation"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="us-gaap_Depreciation_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US"> Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US"> Depreciation of operating lease assets </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AssetManagementCostsToManagerGeneralPartner" xlink:label="cik0001519117_AssetManagementCostsToManagerGeneralPartner"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AssetManagementCostsToManagerGeneralPartner" xlink:to="cik0001519117_AssetManagementCostsToManagerGeneralPartner_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AssetManagementCostsToManagerGeneralPartner_lbl" xml:lang="en-US"> The aggregate costs related to asset management fees earned by the Manager/General Partner during the reporting period. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AssetManagementCostsToManagerGeneralPartner_lbl" xml:lang="en-US"> Asset Management Costs To Manager General Partner </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AssetManagementCostsToManagerGeneralPartner_lbl" xml:lang="en-US"> Asset management fees to managing Member </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdministrativeFeesExpense" xlink:label="us-gaap_AdministrativeFeesExpense"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdministrativeFeesExpense" xlink:to="us-gaap_AdministrativeFeesExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xml:lang="en-US"> Administrative Fees Amount Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xml:lang="en-US"> Cost reimbursements to Managing Member and/or affiliates </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses" xlink:label="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses" xlink:to="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses_lbl" xml:lang="en-US"> Provision for (Recovery of) loan and Lease losses. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses_lbl" xml:lang="en-US"> Provision For Recovery Of Loan And Lease Losses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses_lbl" xml:lang="en-US"> Provision for credit losses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_ProvisionForRecoveryOfLoanAndLeaseLosses_lbl" xml:lang="en-US"> Provision for credit losses </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="us-gaap_AssetImpairmentCharges"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetImpairmentCharges" xlink:to="us-gaap_AssetImpairmentCharges_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xml:lang="en-US"> Asset Impairment Charges </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xml:lang="en-US"> Impairment losses on equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xml:lang="en-US"> Impairment losses on equipment </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="us-gaap_ImpairmentOfInvestments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOfInvestments" xlink:to="us-gaap_ImpairmentOfInvestments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ImpairmentOfInvestments_lbl" xml:lang="en-US"> Other than Temporary Impairment Losses, Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ImpairmentOfInvestments_lbl" xml:lang="en-US"> Impairment losses on investment in securities </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AmortizationOfInitialDirectCosts" xlink:label="cik0001519117_AmortizationOfInitialDirectCosts"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AmortizationOfInitialDirectCosts" xlink:to="cik0001519117_AmortizationOfInitialDirectCosts_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AmortizationOfInitialDirectCosts_lbl" xml:lang="en-US"> Amortization of initial direct costs. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AmortizationOfInitialDirectCosts_lbl" xml:lang="en-US"> Amortization of initial direct costs </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AmortizationOfInitialDirectCosts_lbl" xml:lang="en-US"> Amortization of initial direct costs </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="us-gaap_InterestExpenseDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseDebt" xlink:to="us-gaap_InterestExpenseDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US"> Interest Expense, Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US"> Interest expense </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfessionalFees" xlink:to="us-gaap_ProfessionalFees_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfessionalFees_lbl" xml:lang="en-US"> Professional Fees </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProfessionalFees_lbl" xml:lang="en-US"> Professional fees </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OutsideServicesExpense" xlink:label="cik0001519117_OutsideServicesExpense"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OutsideServicesExpense" xlink:to="cik0001519117_OutsideServicesExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OutsideServicesExpense_lbl" xml:lang="en-US"> Outside services expense. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OutsideServicesExpense_lbl" xml:lang="en-US"> Outside services expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OutsideServicesExpense_lbl" xml:lang="en-US"> Outside services </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ProvisionForFranchiseFeesAndTaxes" xlink:label="cik0001519117_ProvisionForFranchiseFeesAndTaxes"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ProvisionForFranchiseFeesAndTaxes" xlink:to="cik0001519117_ProvisionForFranchiseFeesAndTaxes_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ProvisionForFranchiseFeesAndTaxes_lbl" xml:lang="en-US"> Provision For Franchise Fees and Taxes. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ProvisionForFranchiseFeesAndTaxes_lbl" xml:lang="en-US"> Provision For Franchise Fees And Taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ProvisionForFranchiseFeesAndTaxes_lbl" xml:lang="en-US"> Taxes on income and franchise fees </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_StorageCost" xlink:label="cik0001519117_StorageCost"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_StorageCost" xlink:to="cik0001519117_StorageCost_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_StorageCost_lbl" xml:lang="en-US"> Storage Cost. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_StorageCost_lbl" xml:lang="en-US"> Storage Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_StorageCost_lbl" xml:lang="en-US"> Storage fees </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="us-gaap_OtherCostAndExpenseOperating"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCostAndExpenseOperating" xlink:to="us-gaap_OtherCostAndExpenseOperating_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xml:lang="en-US"> Other Cost And Expense Operating </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xml:lang="en-US"> Other expense </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="us-gaap_CostsAndExpenses"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsAndExpenses" xlink:to="us-gaap_CostsAndExpenses_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CostsAndExpenses_lbl" xml:lang="en-US"> Operating Expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CostsAndExpenses_lbl" xml:lang="en-US"> Total operating expenses </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US"> Operating Income (Loss) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US"> Loss from operations </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:label="us-gaap_OtherNonoperatingIncomeExpenseAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_OtherNonoperatingIncomeExpenseAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNonoperatingIncomeExpenseAbstract_lbl" xml:lang="en-US"> Other income (loss): </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:to="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl" xml:lang="en-US"> Debt and Equity Securities, Gain (Loss) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_lbl" xml:lang="en-US"> Loss on sale of investment in securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:to="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xml:lang="en-US"> Gain (Loss) on Sale of Securities, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xml:lang="en-US"> Unrealized loss on fair value adjustment for securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xml:lang="en-US"> Unrealized gain (loss) on fair market valuation of securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xml:lang="en-US"> Unrealized loss on fair value adjustment for securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivatives" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrealizedGainLossOnDerivatives" xlink:to="us-gaap_UnrealizedGainLossOnDerivatives_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xml:lang="en-US"> Unrealized Gain (Loss) on Derivatives </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xml:lang="en-US"> Unrealized gain on fair value adjustment for warrants </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xml:lang="en-US"> Unrealized gain on fair value adjustment for warrants </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="us-gaap_OtherNonoperatingIncomeExpense"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_OtherNonoperatingIncomeExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xml:lang="en-US"> Other Nonoperating Income (Expense) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xml:lang="en-US"> Total other income </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net Income Loss </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net loss </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net loss </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net loss per financial statements </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAbstract" xlink:label="us-gaap_NetIncomeLossAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAbstract" xlink:to="us-gaap_NetIncomeLossAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAbstract_lbl" xml:lang="en-US"> Net loss: </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_NetIncomeLossAllocatedToManagingMembers" xlink:label="cik0001519117_NetIncomeLossAllocatedToManagingMembers"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_NetIncomeLossAllocatedToManagingMembers" xlink:to="cik0001519117_NetIncomeLossAllocatedToManagingMembers_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_NetIncomeLossAllocatedToManagingMembers_lbl" xml:lang="en-US"> Aggregate amount of net income allocated to managing members in a publicly traded limited liability company (LLC). </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_NetIncomeLossAllocatedToManagingMembers_lbl" xml:lang="en-US"> Net Income Loss Allocated To Managing Members </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_NetIncomeLossAllocatedToManagingMembers_lbl" xml:lang="en-US"> Managing Member </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_NetIncomeLossAllocatedToOtherMembers" xlink:label="cik0001519117_NetIncomeLossAllocatedToOtherMembers"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_NetIncomeLossAllocatedToOtherMembers" xlink:to="cik0001519117_NetIncomeLossAllocatedToOtherMembers_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_NetIncomeLossAllocatedToOtherMembers_lbl" xml:lang="en-US"> Aggregate amount of net income allocated to other members in a publicly traded limited liability company (LLC). Other members have limited liability and do not manage the LLC. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_NetIncomeLossAllocatedToOtherMembers_lbl" xml:lang="en-US"> Net Income Loss Allocated To Other Members </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_NetIncomeLossAllocatedToOtherMembers_lbl" xml:lang="en-US"> Other Members </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit" xlink:label="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit" xlink:to="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit_lbl" xml:lang="en-US"> Net Income Loss Per Outstanding Limited Liability Company Unit. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit_lbl" xml:lang="en-US"> Net Income Loss Per Outstanding Limited Liability Company Unit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_NetIncomeLossPerOutstandingLimitedLiabilityCompanyUnit_lbl" xml:lang="en-US"> Net loss per Limited Liability Company Unit (Other Members) </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits" xlink:label="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits" xlink:to="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Weighted average number of limited liability company units outstanding determined by relating the portion of time within a reporting period that limited liability company units have been outstanding to the total time in that period. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Weighted Average Limited Liability Company Units </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_WeightedAverageLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Weighted average number of Units outstanding </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfPartnersCapitalAbstract" xlink:label="us-gaap_StatementOfPartnersCapitalAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfPartnersCapitalAbstract" xlink:to="us-gaap_StatementOfPartnersCapitalAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfPartnersCapitalAbstract_lbl" xml:lang="en-US"> Statements of Changes in Members' Capital [Abstract] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MembershipCapitalByTypeAxis" xlink:label="cik0001519117_MembershipCapitalByTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MembershipCapitalByTypeAxis" xlink:to="cik0001519117_MembershipCapitalByTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MembershipCapitalByTypeAxis_lbl" xml:lang="en-US"> Membership Capital by Type [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MembershipCapitalByTypeAxis_lbl" xml:lang="en-US"> Membership Capital by Type [Axis] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MembershipCapitalByTypeDomain" xlink:label="cik0001519117_MembershipCapitalByTypeDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MembershipCapitalByTypeDomain" xlink:to="cik0001519117_MembershipCapitalByTypeDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MembershipCapitalByTypeDomain_lbl" xml:lang="en-US"> Membership Capital by Type [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MembershipCapitalByTypeDomain_lbl" xml:lang="en-US"> Membership Capital By Type [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_MembershipCapitalByTypeDomain_lbl" xml:lang="en-US"> Membership Capital by Type [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OtherMembersCapitalMember" xlink:label="cik0001519117_OtherMembersCapitalMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OtherMembersCapitalMember" xlink:to="cik0001519117_OtherMembersCapitalMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OtherMembersCapitalMember_lbl" xml:lang="en-US"> Other Members Capital </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OtherMembersCapitalMember_lbl" xml:lang="en-US"> Other Members Capital [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OtherMembersCapitalMember_lbl" xml:lang="en-US"> Other Members [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ManagingMembersCapitalMember" xlink:label="cik0001519117_ManagingMembersCapitalMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ManagingMembersCapitalMember" xlink:to="cik0001519117_ManagingMembersCapitalMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ManagingMembersCapitalMember_lbl" xml:lang="en-US"> Managing Members Capital </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ManagingMembersCapitalMember_lbl" xml:lang="en-US"> Managing Members Capital [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ManagingMembersCapitalMember_lbl" xml:lang="en-US"> Managing Member [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonUnitOutstanding" xlink:label="us-gaap_CommonUnitOutstanding"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonUnitOutstanding" xlink:to="us-gaap_CommonUnitOutstanding_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonUnitOutstanding_lbl" xml:lang="en-US"> Units Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CommonUnitOutstanding_lbl" xml:lang="en-US"> Ending Balance (in units) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CommonUnitOutstanding_lbl" xml:lang="en-US"> Beginning Balance (in units) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonUnitOutstanding_lbl" xml:lang="en-US"> Members capital account, Units outstanding </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared" xlink:to="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_lbl" xml:lang="en-US"> Limited Partners Or Other Members Capital Account Distribution Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_lbl" xml:lang="en-US"> Distributions to Other Members </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_lbl" xml:lang="en-US"> Distributions declared </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount" xlink:label="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount" xlink:to="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount_lbl" xml:lang="en-US"> General Partners Or Managing Members Capital Account Distribution Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount_lbl" xml:lang="en-US"> General Partners Or Managing Members Capital Account Distribution Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_GeneralPartnersOrManagingMembersCapitalAccountDistributionAmount_lbl" xml:lang="en-US"> Distributions to Managing Member </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit" xlink:to="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit_lbl" xml:lang="en-US"> Distribution Made To Member Or Limited Partner Distributions Paid Per Unit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit_lbl" xml:lang="en-US"> Distributions to Other Members, per unit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsPaidPerUnit_lbl" xml:lang="en-US"> Weighted average distributions per Unit </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US"> Statement of Cash Flows [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Net Cash Provided By Used In Operating Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Operating activities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Adjustment to reconcile net loss to cash provided by operating activities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US"> Increase Decrease In Operating Capital [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US"> Changes in operating assets and liabilities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US"> Increase Decrease In Accounts Receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US"> Accounts receivable </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInDueFromRelatedParties" xlink:label="us-gaap_IncreaseDecreaseInDueFromRelatedParties"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDueFromRelatedParties" xlink:to="us-gaap_IncreaseDecreaseInDueFromRelatedParties_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInDueFromRelatedParties_lbl" xml:lang="en-US"> Increase (Decrease) in Due from Related Parties </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInDueFromRelatedParties_lbl" xml:lang="en-US"> Due from Managing Member and affiliates </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xml:lang="en-US"> Increase Decrease In Prepaid Deferred Expense And Other Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xml:lang="en-US"> Prepaid expenses and other assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_lbl" xml:lang="en-US"> Increase Decrease In Accounts Payable Related Parties </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableRelatedParties_lbl" xml:lang="en-US"> Due to Managing Member and affiliates </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInOtherAccountsPayable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayable_lbl" xml:lang="en-US"> Increase Decrease In Other Accounts Payable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayable_lbl" xml:lang="en-US"> Accounts payable, other </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits" xlink:label="us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits" xlink:to="us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits_lbl" xml:lang="en-US"> Increase (Decrease) in Customer Advances and Deposits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInCustomerAdvancesAndDeposits_lbl" xml:lang="en-US"> Unearned operating lease income </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US"> Net Cash Provided By Used In Operating Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US"> Net cash provided by operating activities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US"> Net Cash Provided By Used In Investing Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US"> Investing activities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US"> Payments To Acquire Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US"> Purchase of securities </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable" xlink:label="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable" xlink:to="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable_lbl" xml:lang="en-US"> Proceeds from early termination of notes receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable_lbl" xml:lang="en-US"> Proceeds from early termination of notes receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ProceedsFromEarlyTerminationOfNotesReceivable_lbl" xml:lang="en-US"> Proceeds from sales of operating lease assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US"> Net Cash Provided By Used In Investing Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US"> Net cash provided by investing activities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US"> Net Cash Provided By Used In Financing Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US"> Financing activities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSecuredDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfSecuredDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfSecuredDebt" xlink:to="us-gaap_ProceedsFromIssuanceOfSecuredDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfSecuredDebt_lbl" xml:lang="en-US"> Proceeds from Issuance of Secured Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfSecuredDebt_lbl" xml:lang="en-US"> Borrowing under non-recourse debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="us-gaap_RepaymentsOfSecuredDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfSecuredDebt" xlink:to="us-gaap_RepaymentsOfSecuredDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xml:lang="en-US"> Repayments Of Secured Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xml:lang="en-US"> Repayments under non-recourse debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit" xlink:label="us-gaap_ProceedsFromRepaymentsOfLinesOfCredit"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromRepaymentsOfLinesOfCredit" xlink:to="us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_lbl" xml:lang="en-US"> Proceeds from Lines of Credit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_lbl" xml:lang="en-US"> Repayments under senior long term debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfCapitalDistribution" xlink:label="us-gaap_PaymentsOfCapitalDistribution"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfCapitalDistribution" xlink:to="us-gaap_PaymentsOfCapitalDistribution_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsOfCapitalDistribution_lbl" xml:lang="en-US"> Payments Of Capital Distribution </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsOfCapitalDistribution_lbl" xml:lang="en-US"> Distributions to Members </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US"> Net Cash Provided By Used In Financing Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US"> Net cash used in financing activities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xml:lang="en-US"> Cash And Cash Equivalents Period Increase Decrease </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xml:lang="en-US"> Net (decrease) increase in cash and cash equivalents </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US"> Supplemental Cash Flow Information [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US"> Supplemental disclosures of cash flow information: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US"> Interest Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US"> Cash paid during the year for interest </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_FranchiseFeesAndTaxesPaid" xlink:label="cik0001519117_FranchiseFeesAndTaxesPaid"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_FranchiseFeesAndTaxesPaid" xlink:to="cik0001519117_FranchiseFeesAndTaxesPaid_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_FranchiseFeesAndTaxesPaid_lbl" xml:lang="en-US"> Franchise Fees and Taxes Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_FranchiseFeesAndTaxesPaid_lbl" xml:lang="en-US"> Franchise Fees And Taxes Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_FranchiseFeesAndTaxesPaid_lbl" xml:lang="en-US"> Cash paid during the year for taxes </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ConversionOfWarrantsToEquitySecurities" xlink:label="cik0001519117_ConversionOfWarrantsToEquitySecurities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ConversionOfWarrantsToEquitySecurities" xlink:to="cik0001519117_ConversionOfWarrantsToEquitySecurities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ConversionOfWarrantsToEquitySecurities_lbl" xml:lang="en-US"> Conversion of warrants to equity securities. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ConversionOfWarrantsToEquitySecurities_lbl" xml:lang="en-US"> Conversion of warrants to equity securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ConversionOfWarrantsToEquitySecurities_lbl" xml:lang="en-US"> Conversion of warrants to equity securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_ConversionOfWarrantsToEquitySecurities_lbl" xml:lang="en-US"> Net exercises of warrants in exchange for securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xml:lang="en-US"> Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xml:lang="en-US"> Schedule of non-cash investing and financing transactions: </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_DistributionsDeclaredButNotPaid" xlink:label="cik0001519117_DistributionsDeclaredButNotPaid"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_DistributionsDeclaredButNotPaid" xlink:to="cik0001519117_DistributionsDeclaredButNotPaid_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_DistributionsDeclaredButNotPaid_lbl" xml:lang="en-US"> Distributions declared but not paid. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_DistributionsDeclaredButNotPaid_lbl" xml:lang="en-US"> Distributions Declared But Not Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_DistributionsDeclaredButNotPaid_lbl" xml:lang="en-US"> Distributions payable to Members at year-end </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessOrganizationAndOperationsAbstract" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessOrganizationAndOperationsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessOrganizationAndOperationsAbstract" xlink:to="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessOrganizationAndOperationsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessOrganizationAndOperationsAbstract_lbl" xml:lang="en-US"> Organization and Limited Liability Company Matters [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:to="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xml:lang="en-US"> Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xml:lang="en-US"> Organization and Limited Liability Company Matters </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xml:lang="en-US"> Summary of Significant Accounting Policies [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US"> Significant Accounting Policies [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US"> Summary of Significant Accounting Policies </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="us-gaap_RisksAndUncertaintiesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RisksAndUncertaintiesAbstract" xlink:to="us-gaap_RisksAndUncertaintiesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RisksAndUncertaintiesAbstract_lbl" xml:lang="en-US"> Concentration of Credit Risk and Major Customers [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:to="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xml:lang="en-US"> Concentration Risk Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xml:lang="en-US"> Concentration of Credit Risk and Major Customers </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesReceivableNetAbstract" xlink:label="us-gaap_NotesReceivableNetAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesReceivableNetAbstract" xlink:to="us-gaap_NotesReceivableNetAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NotesReceivableNetAbstract_lbl" xml:lang="en-US"> Notes Receivable, Net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" xlink:to="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xml:lang="en-US"> Loans Notes Trade And Other Receivables Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xml:lang="en-US"> Notes Receivable, Net </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract" xlink:label="cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract" xlink:to="cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract_lbl" xml:lang="en-US"> Investments In Equipment And Leases, Net [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_InvestmentsInEquipmentAndLeasesNetAbstract_lbl" xml:lang="en-US"> Investments In Equipment And Leases Net [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xlink:label="us-gaap_OperatingLeasesOfLessorDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xlink:to="us-gaap_OperatingLeasesOfLessorDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesOfLessorDisclosureTextBlock_lbl" xml:lang="en-US"> Investment In Equipment And Leases [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesOfLessorDisclosureTextBlock_lbl" xml:lang="en-US"> Equipment Under Operating Leases, Net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="us-gaap_ReceivablesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesAbstract" xlink:to="us-gaap_ReceivablesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReceivablesAbstract_lbl" xml:lang="en-US"> Allowance for Credit Losses [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllowanceForCreditLossesTextBlock" xlink:label="us-gaap_AllowanceForCreditLossesTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForCreditLossesTextBlock" xlink:to="us-gaap_AllowanceForCreditLossesTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllowanceForCreditLossesTextBlock_lbl" xml:lang="en-US"> Allowance For Credit Losses [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AllowanceForCreditLossesTextBlock_lbl" xml:lang="en-US"> Allowance for Credit Losses </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="us-gaap_RelatedPartyTransactionsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="us-gaap_RelatedPartyTransactionsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xml:lang="en-US"> Related Party Transactions [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xml:lang="en-US"> Related Party Transactions Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xml:lang="en-US"> Related Party Transactions </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract" xlink:label="us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract" xlink:to="us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US"> Non-Recourse Debt [Abstract] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_SecuredBorrowingsDisclosureTextBlock" xlink:label="cik0001519117_SecuredBorrowingsDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_SecuredBorrowingsDisclosureTextBlock" xlink:to="cik0001519117_SecuredBorrowingsDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_SecuredBorrowingsDisclosureTextBlock_lbl" xml:lang="en-US"> The amount of debt held that is secured by collateral, i.e. finance receivables and/or the underlying lease assets. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_SecuredBorrowingsDisclosureTextBlock_lbl" xml:lang="en-US"> Secured Borrowings Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_SecuredBorrowingsDisclosureTextBlock_lbl" xml:lang="en-US"> Non-Recourse Debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="us-gaap_LineOfCreditFacilityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAbstract" xlink:to="us-gaap_LineOfCreditFacilityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityAbstract_lbl" xml:lang="en-US"> Borrowing Facilities [Abstract] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LineOfCreditFacilitiesTextBlock" xlink:label="cik0001519117_LineOfCreditFacilitiesTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LineOfCreditFacilitiesTextBlock" xlink:to="cik0001519117_LineOfCreditFacilitiesTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LineOfCreditFacilitiesTextBlock_lbl" xml:lang="en-US"> Line of Credit Facilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LineOfCreditFacilitiesTextBlock_lbl" xml:lang="en-US"> Line Of Credit Facilities [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LineOfCreditFacilitiesTextBlock_lbl" xml:lang="en-US"> Borrowing Facilities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xml:lang="en-US"> Commitments [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsDisclosureTextBlock" xlink:label="us-gaap_CommitmentsDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsDisclosureTextBlock" xlink:to="us-gaap_CommitmentsDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsDisclosureTextBlock_lbl" xml:lang="en-US"> Commitments Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsDisclosureTextBlock_lbl" xml:lang="en-US"> Commitments </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GuaranteesAbstract" xlink:label="us-gaap_GuaranteesAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GuaranteesAbstract" xlink:to="us-gaap_GuaranteesAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GuaranteesAbstract_lbl" xml:lang="en-US"> Guarantees [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GuaranteesTextBlock" xlink:label="us-gaap_GuaranteesTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GuaranteesTextBlock" xlink:to="us-gaap_GuaranteesTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GuaranteesTextBlock_lbl" xml:lang="en-US"> Guarantees [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GuaranteesTextBlock_lbl" xml:lang="en-US"> Guarantees </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedLiabilityCompanyLLCMembersEquityAbstract" xlink:label="us-gaap_LimitedLiabilityCompanyLLCMembersEquityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LimitedLiabilityCompanyLLCMembersEquityAbstract" xlink:to="us-gaap_LimitedLiabilityCompanyLLCMembersEquityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LimitedLiabilityCompanyLLCMembersEquityAbstract_lbl" xml:lang="en-US"> Members' Capital [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquityNotesDisclosureTextBlock" xlink:label="us-gaap_MembersEquityNotesDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MembersEquityNotesDisclosureTextBlock" xlink:to="us-gaap_MembersEquityNotesDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MembersEquityNotesDisclosureTextBlock_lbl" xml:lang="en-US"> Members Capital Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MembersEquityNotesDisclosureTextBlock_lbl" xml:lang="en-US"> Members' Capital </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="us-gaap_FairValueDisclosuresAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueDisclosuresAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xml:lang="en-US"> Fair Value Measurements [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="us-gaap_FairValueDisclosuresTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresTextBlock" xlink:to="us-gaap_FairValueDisclosuresTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xml:lang="en-US"> Fair Value Disclosures [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xml:lang="en-US"> Fair Value Measurements </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ExtraordinaryAndUnusualItemsAbstract" xlink:label="us-gaap_ExtraordinaryAndUnusualItemsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExtraordinaryAndUnusualItemsAbstract" xlink:to="us-gaap_ExtraordinaryAndUnusualItemsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExtraordinaryAndUnusualItemsAbstract_lbl" xml:lang="en-US"> Global Health Emergency [Abstract] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock" xlink:label="us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock" xlink:to="us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock_lbl" xml:lang="en-US"> Global Health Emergency [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock_lbl" xml:lang="en-US"> Global Health Emergency </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Basis Of Accounting Policy Policy [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Basis of Presentation </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xml:lang="en-US"> Cash and Cash Equivalents, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xml:lang="en-US"> Cash and Cash Equivalents </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US"> Use Of Estimates </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US"> Use of Estimates </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:label="us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:to="us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_lbl" xml:lang="en-US"> Accounts Receivable Allowance [Policy Tect Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_lbl" xml:lang="en-US"> Accounts Receivable </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="us-gaap_ConcentrationRiskCreditRisk"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskCreditRisk" xlink:to="us-gaap_ConcentrationRiskCreditRisk_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xml:lang="en-US"> Concentration Risk, Credit Risk, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xml:lang="en-US"> Credit Risk </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRecognitionLeases" xlink:label="us-gaap_RevenueRecognitionLeases"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionLeases" xlink:to="us-gaap_RevenueRecognitionLeases_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueRecognitionLeases_lbl" xml:lang="en-US"> Revenue Recognition Leases, Operating [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_RevenueRecognitionLeases_lbl" xml:lang="en-US"> Equipment on Operating Leases and Related Revenue Recognition </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock" xlink:label="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock" xlink:to="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock_lbl" xml:lang="en-US"> Capitalization of Initial Direct Costs [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock_lbl" xml:lang="en-US"> Capitalization Of Initial Direct Costs [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_CapitalizationOfInitialDirectCostsPolicyTextBlock_lbl" xml:lang="en-US"> Initial Direct Costs </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:to="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Asset Valuation </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:to="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Segment Reporting Policy Policy [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Segment Reporting </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="us-gaap_InvestmentPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentPolicyTextBlock" xlink:to="us-gaap_InvestmentPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xml:lang="en-US"> Investment Policy [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xml:lang="en-US"> Investment in Securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRecognitionDeferredRevenue" xlink:label="us-gaap_RevenueRecognitionDeferredRevenue"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionDeferredRevenue" xlink:to="us-gaap_RevenueRecognitionDeferredRevenue_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueRecognitionDeferredRevenue_lbl" xml:lang="en-US"> Unearned Operating Lease Income [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevenueRecognitionDeferredRevenue_lbl" xml:lang="en-US"> Unearned Operating Lease Income </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="us-gaap_IncomeTaxPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxPolicyTextBlock" xlink:to="us-gaap_IncomeTaxPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US"> Income Tax, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US"> Income Taxes </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock" xlink:label="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock" xlink:to="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock_lbl" xml:lang="en-US"> Earnings and Distributions Per Unit, Policy </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock_lbl" xml:lang="en-US"> Earnings And Distributions Per Unit Policy [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_EarningsAndDistributionsPerUnitPolicyTextBlock_lbl" xml:lang="en-US"> Per Unit Data </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> New Accounting Pronouncements Policy Policy [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Recent Accounting Pronouncements </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock" xlink:label="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock" xlink:to="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of differences between book value and tax basis of net assets. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Differences between book value and tax basis of net assets [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_ScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Differences Between Book Value and Tax Basis of Net Assets </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock" xlink:label="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock" xlink:to="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock_lbl" xml:lang="en-US"> Reconciliation of net income loss reported in financial statements and Federal tax return. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock_lbl" xml:lang="en-US"> Reconciliation of net income loss reported in financial statements and Federal tax return [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_ReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnTableTextBlock_lbl" xml:lang="en-US"> Reconciliation of Net Income (Loss) Reported in Financial Statements and Federal Tax Return </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock" xlink:label="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock" xlink:to="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock_lbl" xml:lang="en-US"> Schedule Of Equipment Lease Credit Risk Concentration [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock_lbl" xml:lang="en-US"> Schedule Of Equipment Lease Credit Risk Concentration[Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ScheduleOfEquipmentLeaseCreditRiskConcentrationTableTextBlock_lbl" xml:lang="en-US"> Schedule of Equipment Lease Credit Risk Concentration </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock" xlink:to="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl" xml:lang="en-US"> Schedules of Concentration of Risk, by Risk Factor [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl" xml:lang="en-US"> Schedule of Leasing and Lending Revenues </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ComponentsOfLeaseInvestmentsTextBlock" xlink:label="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock" xlink:to="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock_lbl" xml:lang="en-US"> Components of Lease Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock_lbl" xml:lang="en-US"> Components Of Lease Investments [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ComponentsOfLeaseInvestmentsTextBlock_lbl" xml:lang="en-US"> Investment in Leases </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock_lbl" xml:lang="en-US"> Tabular disclosure of lessor's property under leasing agreements and property available for lease (not currently under lease) by property class, the gross amount, accumulated depreciation and net amount of as of the balance sheet date. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock_lbl" xml:lang="en-US"> Property Subject To Or Available For Operating Lease [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseTextBlock_lbl" xml:lang="en-US"> Property on Operating Leases </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock" xlink:label="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock" xlink:to="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Future Minimum Lease Payments to be Received, Capital Lease and Operating Lease </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Future Minimum Lease Payments To Be Received Capital Lease And Operating Lease Table [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_FutureMinimumLeasePaymentsToBeReceivedCapitalLeaseAndOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Future Minimum Lease Payments Receivable </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock" xlink:label="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock" xlink:to="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Schedule of useful life of Property subject to or Available For Operating Lease. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Schedule of useful life of Property subject to or Available For Operating Lease [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ScheduleOfUsefulLifeOfPropertySubjectToOrAvailableForOperatingLeaseTableTextBlock_lbl" xml:lang="en-US"> Schedule of Useful Lives of Assets </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ProvisionForCreditLossesTableTextBlock" xlink:label="cik0001519117_ProvisionForCreditLossesTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ProvisionForCreditLossesTableTextBlock" xlink:to="cik0001519117_ProvisionForCreditLossesTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ProvisionForCreditLossesTableTextBlock_lbl" xml:lang="en-US"> Provision For Credit Losses. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ProvisionForCreditLossesTableTextBlock_lbl" xml:lang="en-US"> Provision For Credit Losses [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ProvisionForCreditLossesTableTextBlock_lbl" xml:lang="en-US"> Activity in Allowance for Doubtful Accounts and Credit Losses </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xml:lang="en-US"> Schedule Of Related Party Transactions Table [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xml:lang="en-US"> Managing Member and/or Affiliates Earned Commissions and Billed for Reimbursements Pursuant to Operating Agreement </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:to="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xml:lang="en-US"> Schedule Of Maturities Of Long Term Debt Table [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xml:lang="en-US"> Future Minimum Payments of Non-Recourse Debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock" xlink:label="us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock" xlink:to="us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock_lbl" xml:lang="en-US"> Schedule Of Distributions Made To Members Or Limited Partners By Distribution [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DistributionsMadeToLimitedLiabilityCompanyLlcMemberByDistributionTableTextBlock_lbl" xml:lang="en-US"> Distributions to Other Members </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xml:lang="en-US"> Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xml:lang="en-US"> Fair Value, Warrants Measured on Recurring Basis </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xml:lang="en-US"> Fair Value, Assets Measured on Recurring Basis [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xml:lang="en-US"> Fair Value, Investment Securities Measured on Recurring Basis </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xml:lang="en-US"> Fair Value Measurement of Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xml:lang="en-US"> Summary of Valuation Techniques and Significant Unobservable Inputs Used </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:to="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xml:lang="en-US"> Fair Value By Balance Sheet Grouping [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xml:lang="en-US"> Estimated Fair Values of Financial Instruments </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" xlink:to="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable_lbl" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable_lbl" xml:lang="en-US"> Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable_lbl" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_InitialMemberMember" xlink:label="cik0001519117_InitialMemberMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_InitialMemberMember" xlink:to="cik0001519117_InitialMemberMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_InitialMemberMember_lbl" xml:lang="en-US"> Initial Member [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_InitialMemberMember_lbl" xml:lang="en-US"> Initial Member [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_InitialMemberMember_lbl" xml:lang="en-US"> Initial Member [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" xlink:to="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems_lbl" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems_lbl" xml:lang="en-US"> Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems_lbl" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate" xlink:to="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate_lbl" xml:lang="en-US"> Limited Liability Company or Limited Partnership, Business, Formation Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate_lbl" xml:lang="en-US"> Business formation date </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState" xlink:to="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState_lbl" xml:lang="en-US"> Limited Liability Company or Limited Partnership, Business, Formation State </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState_lbl" xml:lang="en-US"> Business formation State </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription" xlink:to="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription_lbl" xml:lang="en-US"> Limited Liability Company or Limited Partnership, Business Activities and Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessActivitiesAndDescription_lbl" xml:lang="en-US"> Business activities, description </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_CapitalContributionsInitial" xlink:label="cik0001519117_CapitalContributionsInitial"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_CapitalContributionsInitial" xlink:to="cik0001519117_CapitalContributionsInitial_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_CapitalContributionsInitial_lbl" xml:lang="en-US"> Capital Contributions, Initial </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_CapitalContributionsInitial_lbl" xml:lang="en-US"> Capital Contributions Initial </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_CapitalContributionsInitial_lbl" xml:lang="en-US"> Contributions of capital </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering" xlink:label="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering" xlink:to="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering_lbl" xml:lang="en-US"> The number of units sold in a public offering of each class of members' capital account. Units represent shares of ownership of the managing and other members. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering_lbl" xml:lang="en-US"> Members Capital Account Units Sold In Public Offering </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_MembersCapitalAccountUnitsSoldInPublicOffering_lbl" xml:lang="en-US"> Public offering of Limited Liability Company Units </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PricePerLimitedLiabilityCompanyUnits" xlink:label="cik0001519117_PricePerLimitedLiabilityCompanyUnits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PricePerLimitedLiabilityCompanyUnits" xlink:to="cik0001519117_PricePerLimitedLiabilityCompanyUnits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PricePerLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Amount per Limited Liability Company Unit issued. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PricePerLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Price Per Limited Liability Company Units </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_PricePerLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Public offering of Limited Liability Company Units, price per unit </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MembersCapitalAccountUnitsSaleOfUnits" xlink:label="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits" xlink:to="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits_lbl" xml:lang="en-US"> Total units issued during the year due to the sale of units. All members include the managing and other members. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits_lbl" xml:lang="en-US"> Members Capital Account Units Sale Of Units </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_MembersCapitalAccountUnitsSaleOfUnits_lbl" xml:lang="en-US"> Sale of Limited Liability Company Units, number of Units </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits" xlink:label="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits" xlink:to="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> The cash inflow from the issuance of Limited Liability Company units during the period. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Proceeds From Issuance Of Limited Liability Company Units </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ProceedsFromIssuanceOfLimitedLiabilityCompanyUnits_lbl" xml:lang="en-US"> Proceeds from sale of Limited Liability Company Units </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions" xlink:label="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions" xlink:to="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions_lbl" xml:lang="en-US"> Amount Of Aggregate Capital Account Units Subscriptions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions_lbl" xml:lang="en-US"> Amount Of Aggregate Capital Account Units Subscriptions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AmountOfAggregateCapitalAccountUnitsSubscriptions_lbl" xml:lang="en-US"> Amount of aggregate subscriptions for Pennsylvania subscriptions to be released to the Fund </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ReinvestmentPeriod" xlink:label="cik0001519117_ReinvestmentPeriod"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ReinvestmentPeriod" xlink:to="cik0001519117_ReinvestmentPeriod_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ReinvestmentPeriod_lbl" xml:lang="en-US"> Reinvestment Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ReinvestmentPeriod_lbl" xml:lang="en-US"> Reinvestment Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ReinvestmentPeriod_lbl" xml:lang="en-US"> Reinvestment period </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonUnitIssued" xlink:label="us-gaap_CommonUnitIssued"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonUnitIssued" xlink:to="us-gaap_CommonUnitIssued_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonUnitIssued_lbl" xml:lang="en-US"> Other Members Capital Account Units Issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonUnitIssued_lbl" xml:lang="en-US"> Members capital account, Units issued </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis" xlink:label="srt_RangeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeAxis_lbl" xml:lang="en-US"> Range [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="srt_RangeMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeMember" xlink:to="srt_RangeMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeMember_lbl" xml:lang="en-US"> Range [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_RangeMember_lbl" xml:lang="en-US"> Range [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="srt_MinimumMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US"> Minimum [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US"> Minimum [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="srt_MaximumMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US"> Maximum [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US"> Maximum [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xml:lang="en-US"> Concentration Risk Benchmark [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="us-gaap_ConcentrationRiskBenchmarkDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xml:lang="en-US"> Concentration Risk Benchmark [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xml:lang="en-US"> Concentration Risk Benchmark [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="us-gaap_SalesRevenueNetMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNetMember" xlink:to="us-gaap_SalesRevenueNetMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xml:lang="en-US"> Sales Revenue Net [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xml:lang="en-US"> Operating Revenue [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_TreasuryInstrumentsMaturityPeriod" xlink:label="cik0001519117_TreasuryInstrumentsMaturityPeriod"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_TreasuryInstrumentsMaturityPeriod" xlink:to="cik0001519117_TreasuryInstrumentsMaturityPeriod_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_TreasuryInstrumentsMaturityPeriod_lbl" xml:lang="en-US"> Treasury Instruments Maturity Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_TreasuryInstrumentsMaturityPeriod_lbl" xml:lang="en-US"> Treasury Instruments Maturity Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_TreasuryInstrumentsMaturityPeriod_lbl" xml:lang="en-US"> U.S. Treasury instruments maturity period </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits" xlink:label="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits" xlink:to="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits_lbl" xml:lang="en-US"> Required assets value of financial institutions for cash deposits. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits_lbl" xml:lang="en-US"> Required assets value of financial institutions for cash deposits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_RequiredAssetsValueOfFinancialInstitutionsForCashDeposits_lbl" xml:lang="en-US"> Required assets value of financial institutions for cash deposits </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFDICInsuredAmount" xlink:label="us-gaap_CashFDICInsuredAmount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFDICInsuredAmount" xlink:to="us-gaap_CashFDICInsuredAmount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xml:lang="en-US"> Cash, FDIC Insured Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xml:lang="en-US"> Cash deposits, insured amount </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:to="us-gaap_PropertyPlantAndEquipmentDepreciationMethods_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods_lbl" xml:lang="en-US"> Property, Plant and Equipment, Depreciation Methods </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentDepreciationMethods_lbl" xml:lang="en-US"> Equipment on operating leases, depreciation method </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OperatingLeasesPeriodForNonAccrualStatus" xlink:label="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus" xlink:to="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus_lbl" xml:lang="en-US"> Operating leases, Period for non-accrual status. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus_lbl" xml:lang="en-US"> Operating leases, Period for non accrual status </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OperatingLeasesPeriodForNonAccrualStatus_lbl" xml:lang="en-US"> Operating leases, period for non accrual status </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment" xlink:label="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment" xlink:to="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment_lbl" xml:lang="en-US"> Equipment and lessee period of review for impairment. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment_lbl" xml:lang="en-US"> Equipment And Lessee Period Of Review For Impairment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_EquipmentAndLesseePeriodOfReviewForImpairment_lbl" xml:lang="en-US"> Operating leases, period of review for impairment </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue" xlink:label="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue" xlink:to="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue_lbl" xml:lang="en-US"> Warrants converted to equity securities, fair value. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue_lbl" xml:lang="en-US"> Warrants Converted To Equity Securities Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_WarrantsConvertedToEquitySecuritiesFairValue_lbl" xml:lang="en-US"> Warrants converted to equity securities, fair value </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities" xlink:label="us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities" xlink:to="us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities_lbl" xml:lang="en-US"> Proceeds from Sale of Securities, Operating Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProceedsFromSaleOfSecuritiesOperatingActivities_lbl" xml:lang="en-US"> Proceeds from sale of securities </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_IncreaseDecreaseInDepreciation" xlink:label="cik0001519117_IncreaseDecreaseInDepreciation"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_IncreaseDecreaseInDepreciation" xlink:to="cik0001519117_IncreaseDecreaseInDepreciation_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_IncreaseDecreaseInDepreciation_lbl" xml:lang="en-US"> Increase decrease in depreciation. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_IncreaseDecreaseInDepreciation_lbl" xml:lang="en-US"> Increase Decrease In Depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_IncreaseDecreaseInDepreciation_lbl" xml:lang="en-US"> Additional depreciation recorded </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeaseTermOfContract" xlink:label="us-gaap_LessorOperatingLeaseTermOfContract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeaseTermOfContract" xlink:to="us-gaap_LessorOperatingLeaseTermOfContract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeaseTermOfContract_lbl" xml:lang="en-US"> Operating leases, initial terms </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeaseTermOfContract_lbl" xml:lang="en-US"> Operating leases, initial terms </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="us-gaap_NumberOfOperatingSegments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfOperatingSegments" xlink:to="us-gaap_NumberOfOperatingSegments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xml:lang="en-US"> Number Of Operating Segments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xml:lang="en-US"> Number of operating segments </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="us-gaap_NumberOfReportableSegments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xml:lang="en-US"> Number Of Reportable Segments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xml:lang="en-US"> Number of reportable segments </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnSaleOfInvestments" xlink:label="us-gaap_GainLossOnSaleOfInvestments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfInvestments" xlink:to="us-gaap_GainLossOnSaleOfInvestments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xml:lang="en-US"> Gain (Loss) on Sale of Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_GainLossOnSaleOfInvestments_lbl" xml:lang="en-US"> Gain on sales or dispositions of investment in securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="us-gaap_ConcentrationRiskPercentage1"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskPercentage1" xlink:to="us-gaap_ConcentrationRiskPercentage1_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US"> Concentration Risk, Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US"> Percentage of concentration risk in the United States </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US"> Percentage of concentration risk </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_FranchiseFeesAndTaxes" xlink:label="cik0001519117_FranchiseFeesAndTaxes"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_FranchiseFeesAndTaxes" xlink:to="cik0001519117_FranchiseFeesAndTaxes_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_FranchiseFeesAndTaxes_lbl" xml:lang="en-US"> This line item represents franchise taxes and fees assessed by applicable state and local jurisdictions. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_FranchiseFeesAndTaxes_lbl" xml:lang="en-US"> Franchise Fees And Taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_FranchiseFeesAndTaxes_lbl" xml:lang="en-US"> Taxes on income and franchise fees </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExaminationDescription" xlink:label="us-gaap_IncomeTaxExaminationDescription"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExaminationDescription" xlink:to="us-gaap_IncomeTaxExaminationDescription_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExaminationDescription_lbl" xml:lang="en-US"> Income Tax Examination, Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeTaxExaminationDescription_lbl" xml:lang="en-US"> Income tax examination description </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_TaxBasisOfNetAssets" xlink:label="cik0001519117_TaxBasisOfNetAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_TaxBasisOfNetAssets" xlink:to="cik0001519117_TaxBasisOfNetAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_TaxBasisOfNetAssets_lbl" xml:lang="en-US"> Tax basis of net assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_TaxBasisOfNetAssets_lbl" xml:lang="en-US"> Tax basis of net assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_TaxBasisOfNetAssets_lbl" xml:lang="en-US"> Tax basis of net assets (unaudited) </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis" xlink:label="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis" xlink:to="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis_lbl" xml:lang="en-US"> Net assets difference between financial statement basis and tax basis </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis_lbl" xml:lang="en-US"> Net assets difference between financial statement basis and tax basis </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_NetAssetsDifferenceBetweenFinancialStatementBasisAndTaxBasis_lbl" xml:lang="en-US"> Difference </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation" xlink:label="us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation" xlink:to="us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation_lbl" xml:lang="en-US"> Income Tax Reconciliation, Nondeductible Expense, Depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxReconciliationNondeductibleExpenseDepreciation_lbl" xml:lang="en-US"> Adjustment to depreciation expense </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts" xlink:label="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts" xlink:to="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts_lbl" xml:lang="en-US"> Income tax reconciliation provision for doubtful accounts. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts_lbl" xml:lang="en-US"> Income Tax Reconciliation Provision For Doubtful Accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_IncomeTaxReconciliationProvisionForDoubtfulAccounts_lbl" xml:lang="en-US"> Provision for losses and doubtful accounts </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue" xlink:label="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue" xlink:to="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue_lbl" xml:lang="en-US"> Income Tax Reconciliation Adjustments to Revenue. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue_lbl" xml:lang="en-US"> Income Tax Reconciliation Adjustments to Revenue </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_IncomeTaxReconciliationAdjustmentsToRevenue_lbl" xml:lang="en-US"> Adjustments to revenues </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxReconciliationDispositionOfAssets" xlink:label="us-gaap_IncomeTaxReconciliationDispositionOfAssets"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReconciliationDispositionOfAssets" xlink:to="us-gaap_IncomeTaxReconciliationDispositionOfAssets_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxReconciliationDispositionOfAssets_lbl" xml:lang="en-US"> Income Tax Reconciliation, Disposition of Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxReconciliationDispositionOfAssets_lbl" xml:lang="en-US"> Adjustments to gain on sales of assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:to="us-gaap_IncomeTaxReconciliationOtherAdjustments_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments_lbl" xml:lang="en-US"> Income Tax Reconciliation, Other Adjustments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments_lbl" xml:lang="en-US"> Other </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_IncomeOrLossPerFederalTaxReturn" xlink:label="cik0001519117_IncomeOrLossPerFederalTaxReturn"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_IncomeOrLossPerFederalTaxReturn" xlink:to="cik0001519117_IncomeOrLossPerFederalTaxReturn_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_IncomeOrLossPerFederalTaxReturn_lbl" xml:lang="en-US"> Income or loss per federal tax return. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_IncomeOrLossPerFederalTaxReturn_lbl" xml:lang="en-US"> Income Or Loss Per Federal Tax Return </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_IncomeOrLossPerFederalTaxReturn_lbl" xml:lang="en-US"> Income per federal tax return (unaudited) </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="us-gaap_ConcentrationRiskTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskTable" xlink:to="us-gaap_ConcentrationRiskTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskTable_lbl" xml:lang="en-US"> Concentration Risk [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US"> Property Plant And Equipment Type [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OilGasExtractionMember" xlink:label="cik0001519117_OilGasExtractionMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OilGasExtractionMember" xlink:to="cik0001519117_OilGasExtractionMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OilGasExtractionMember_lbl" xml:lang="en-US"> Oil/Gas Extraction [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OilGasExtractionMember_lbl" xml:lang="en-US"> Oil Gas Extraction [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OilGasExtractionMember_lbl" xml:lang="en-US"> Oil/Gas Extraction [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MarineVesselsMember" xlink:label="cik0001519117_MarineVesselsMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MarineVesselsMember" xlink:to="cik0001519117_MarineVesselsMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MarineVesselsMember_lbl" xml:lang="en-US"> Marine Vessels [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MarineVesselsMember_lbl" xml:lang="en-US"> Marine Vessels [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_MarineVesselsMember_lbl" xml:lang="en-US"> Marine Vessel [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MajorCustomersAxis" xlink:label="srt_MajorCustomersAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MajorCustomersAxis" xlink:to="srt_MajorCustomersAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MajorCustomersAxis_lbl" xml:lang="en-US"> Customer [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="srt_NameOfMajorCustomerDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_NameOfMajorCustomerDomain" xlink:to="srt_NameOfMajorCustomerDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_NameOfMajorCustomerDomain_lbl" xml:lang="en-US"> Name Of Major Customer [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_NameOfMajorCustomerDomain_lbl" xml:lang="en-US"> Name Of Major Customer [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_HalliburtonOverseasLimitedMember" xlink:label="cik0001519117_HalliburtonOverseasLimitedMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_HalliburtonOverseasLimitedMember" xlink:to="cik0001519117_HalliburtonOverseasLimitedMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_HalliburtonOverseasLimitedMember_lbl" xml:lang="en-US"> Halliburton Overseas Limited [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_HalliburtonOverseasLimitedMember_lbl" xml:lang="en-US"> Halliburton Overseas Limited [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_HalliburtonOverseasLimitedMember_lbl" xml:lang="en-US"> Halliburton Overseas Limited [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_GeAviationMember" xlink:label="cik0001519117_GeAviationMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_GeAviationMember" xlink:to="cik0001519117_GeAviationMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_GeAviationMember_lbl" xml:lang="en-US"> GE Aviation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_GeAviationMember_lbl" xml:lang="en-US"> Ge Aviation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_GeAviationMember_lbl" xml:lang="en-US"> GE Aviation [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_CargillInc.Member" xlink:label="cik0001519117_CargillInc.Member"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_CargillInc.Member" xlink:to="cik0001519117_CargillInc.Member_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_CargillInc.Member_lbl" xml:lang="en-US"> Cargill, Inc. [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_CargillInc.Member_lbl" xml:lang="en-US"> Cargill Inc. [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_CargillInc.Member_lbl" xml:lang="en-US"> Cargill, Inc. [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AepGeneratingCompanyMember" xlink:label="cik0001519117_AepGeneratingCompanyMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AepGeneratingCompanyMember" xlink:to="cik0001519117_AepGeneratingCompanyMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AepGeneratingCompanyMember_lbl" xml:lang="en-US"> Aep Generating Company [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AepGeneratingCompanyMember_lbl" xml:lang="en-US"> Aep Generating Company [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AepGeneratingCompanyMember_lbl" xml:lang="en-US"> Aep Generating Company [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_EquipmentCostMember" xlink:label="cik0001519117_EquipmentCostMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_EquipmentCostMember" xlink:to="cik0001519117_EquipmentCostMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_EquipmentCostMember_lbl" xml:lang="en-US"> Equipment Cost [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_EquipmentCostMember_lbl" xml:lang="en-US"> Equipment Cost [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_EquipmentCostMember_lbl" xml:lang="en-US"> Equipment Cost [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="us-gaap_ConcentrationRiskLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskLineItems" xlink:to="us-gaap_ConcentrationRiskLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskLineItems_lbl" xml:lang="en-US"> Concentration Risk [Line Items] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LeasesDisclosureTable" xlink:label="cik0001519117_LeasesDisclosureTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LeasesDisclosureTable" xlink:to="cik0001519117_LeasesDisclosureTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LeasesDisclosureTable_lbl" xml:lang="en-US"> Leases Disclosure [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LeasesDisclosureTable_lbl" xml:lang="en-US"> Leases Disclosure [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LeasesDisclosureTable_lbl" xml:lang="en-US"> Leases Disclosure [Table] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost" xlink:label="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost" xlink:to="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost_lbl" xml:lang="en-US"> Average Estimated Residual Value for Assets on Operating Leases as Percentage of Original Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost_lbl" xml:lang="en-US"> Average Estimated Residual Value For Assets On Operating Leases As Percentage Of Original Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AverageEstimatedResidualValueForAssetsOnOperatingLeasesAsPercentageOfOriginalCost_lbl" xml:lang="en-US"> Average estimated residual value of assets on operating leases </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus" xlink:to="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl" xml:lang="en-US"> Financing Receivable, Recorded Investment, Nonaccrual Status </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl" xml:lang="en-US"> Operating leases in non-accrual status </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsLeasedToOthersMember" xlink:label="us-gaap_AssetsLeasedToOthersMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsLeasedToOthersMember" xlink:to="us-gaap_AssetsLeasedToOthersMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsLeasedToOthersMember_lbl" xml:lang="en-US"> Assets Leased To Others [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsLeasedToOthersMember_lbl" xml:lang="en-US"> Operating Leases [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember" xlink:label="us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember" xlink:to="us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_lbl" xml:lang="en-US"> Disposal Group Heldforsale Not Discontinued Operations [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_lbl" xml:lang="en-US"> Assets Held for Sale [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_InitialDirectCostMember" xlink:label="cik0001519117_InitialDirectCostMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_InitialDirectCostMember" xlink:to="cik0001519117_InitialDirectCostMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_InitialDirectCostMember_lbl" xml:lang="en-US"> Initial Direct Cost [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_InitialDirectCostMember_lbl" xml:lang="en-US"> Initial Direct Cost [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_InitialDirectCostMember_lbl" xml:lang="en-US"> Initial Direct Cost [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorLeaseDescriptionLineItems" xlink:label="us-gaap_LessorLeaseDescriptionLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorLeaseDescriptionLineItems" xlink:to="us-gaap_LessorLeaseDescriptionLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorLeaseDescriptionLineItems_lbl" xml:lang="en-US"> Lessor, Lease, Description [Line Items] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions" xlink:to="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions_lbl" xml:lang="en-US"> Investment in Equipment and Leases Reclassifications Additions and Dispositions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions_lbl" xml:lang="en-US"> Investment In Equipment And Leases Reclassifications Additions And Dispositions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesReclassificationsAdditionsAndDispositions_lbl" xml:lang="en-US"> Reclassifications & Additions/ Dispositions </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense" xlink:to="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense_lbl" xml:lang="en-US"> Investment in Equipment and Leases Depreciation and Amortization Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense_lbl" xml:lang="en-US"> Investment In Equipment And Leases Depreciation And Amortization Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_InvestmentInEquipmentAndLeasesDepreciationAndAmortizationExpense_lbl" xml:lang="en-US"> Depreciation/ Amortization Expense or Amortization of Leases </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorLeaseDescriptionTable" xlink:label="us-gaap_LessorLeaseDescriptionTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorLeaseDescriptionTable" xlink:to="us-gaap_LessorLeaseDescriptionTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorLeaseDescriptionTable_lbl" xml:lang="en-US"> Lessor, Lease, Description [Table] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ManufacturingMember" xlink:label="cik0001519117_ManufacturingMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ManufacturingMember" xlink:to="cik0001519117_ManufacturingMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ManufacturingMember_lbl" xml:lang="en-US"> Manufacturing [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ManufacturingMember_lbl" xml:lang="en-US"> Manufacturing [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ManufacturingMember_lbl" xml:lang="en-US"> Manufacturing [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RailroadTransportationEquipmentMember" xlink:label="us-gaap_RailroadTransportationEquipmentMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RailroadTransportationEquipmentMember" xlink:to="us-gaap_RailroadTransportationEquipmentMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RailroadTransportationEquipmentMember_lbl" xml:lang="en-US"> Railroad Transportation Equipment [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RailroadTransportationEquipmentMember_lbl" xml:lang="en-US"> Transportation, Rail [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_FacilityOtherMember" xlink:label="cik0001519117_FacilityOtherMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_FacilityOtherMember" xlink:to="cik0001519117_FacilityOtherMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_FacilityOtherMember_lbl" xml:lang="en-US"> Facility, Other [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_FacilityOtherMember_lbl" xml:lang="en-US"> Facility Other [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_FacilityOtherMember_lbl" xml:lang="en-US"> Facility, Other [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AgricultureMember" xlink:label="cik0001519117_AgricultureMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AgricultureMember" xlink:to="cik0001519117_AgricultureMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AgricultureMember_lbl" xml:lang="en-US"> Agriculture [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AgricultureMember_lbl" xml:lang="en-US"> Agriculture [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_AgricultureMember_lbl" xml:lang="en-US"> Agriculture [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConstructionMember" xlink:label="us-gaap_ConstructionMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionMember" xlink:to="us-gaap_ConstructionMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConstructionMember_lbl" xml:lang="en-US"> Construction [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConstructionMember_lbl" xml:lang="en-US"> Construction [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherTransportationEquipmentMember" xlink:label="us-gaap_OtherTransportationEquipmentMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherTransportationEquipmentMember" xlink:to="us-gaap_OtherTransportationEquipmentMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherTransportationEquipmentMember_lbl" xml:lang="en-US"> Other Transportation Equipment [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherTransportationEquipmentMember_lbl" xml:lang="en-US"> Other [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertyOnOperatingLeasesGross" xlink:label="cik0001519117_PropertyOnOperatingLeasesGross"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertyOnOperatingLeasesGross" xlink:to="cik0001519117_PropertyOnOperatingLeasesGross_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertyOnOperatingLeasesGross_lbl" xml:lang="en-US"> Amount before accumulated depreciation of physical assets used in the normal conduct of business to produce goods and services subject to or available for lease. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertyOnOperatingLeasesGross_lbl" xml:lang="en-US"> Property on operating leases, gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_PropertyOnOperatingLeasesGross_lbl" xml:lang="en-US"> Property on operating leases, gross </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation" xlink:label="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation" xlink:to="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation_lbl" xml:lang="en-US"> The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation_lbl" xml:lang="en-US"> Property on operating leases, accumulated depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_PropertyOnOperatingLeasesAccumulatedDepreciation_lbl" xml:lang="en-US"> Less accumulated depreciation </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertyOnOperatingLeasesNet" xlink:label="cik0001519117_PropertyOnOperatingLeasesNet"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertyOnOperatingLeasesNet" xlink:to="cik0001519117_PropertyOnOperatingLeasesNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertyOnOperatingLeasesNet_lbl" xml:lang="en-US"> The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertyOnOperatingLeasesNet_lbl" xml:lang="en-US"> Property on operating leases, net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_PropertyOnOperatingLeasesNet_lbl" xml:lang="en-US"> Property on operating leases, net </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions_lbl" xml:lang="en-US"> Property subject to or available for operating lease accumulated depreciation, additions. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions_lbl" xml:lang="en-US"> Property subject to or available for operating lease accumulated depreciation, additions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationAdditions_lbl" xml:lang="en-US"> Additions, less accumulated depreciation </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions_lbl" xml:lang="en-US"> Property subject to or available for operating lease, additions. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions_lbl" xml:lang="en-US"> Property Subject To Or Available For Operating Lease Additions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAdditions_lbl" xml:lang="en-US"> Additions, net </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross_lbl" xml:lang="en-US"> Property subject to or available for operating lease reclassifications or dispositions, gross. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross_lbl" xml:lang="en-US"> Property subject to or available for operating lease reclassifications or dispositions, gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross_lbl" xml:lang="en-US"> Reclassifications or dispositions, gross </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions_lbl" xml:lang="en-US"> Property subject to or available for operating lease accumulated depreciation, reclassifications or dispositions. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions_lbl" xml:lang="en-US"> Property subject to or available for operating lease accumulated depreciation, reclassifications or dispositions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciationReclassificationsOrDispositions_lbl" xml:lang="en-US"> Reclassifications or dispositions, less accumulated depreciation </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions" xlink:to="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions_lbl" xml:lang="en-US"> Property subject to or available for operating lease, reclassifications or dispositions. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions_lbl" xml:lang="en-US"> Property Subject To Or Available For Operating Lease Reclassifications Or Dispositions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="cik0001519117_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositions_lbl" xml:lang="en-US"> Reclassifications or dispositions, net </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract" xlink:label="us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract" xlink:to="us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract_lbl" xml:lang="en-US"> Operating Leases </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_lbl" xml:lang="en-US"> Lessor, Operating Lease, Payments to be Received, Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_lbl" xml:lang="en-US"> Year ending December 31, 2021 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable In Two Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_lbl" xml:lang="en-US"> 2022 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable In Three Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_lbl" xml:lang="en-US"> 2023 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable In Four Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_lbl" xml:lang="en-US"> 2024 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable In Five Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears_lbl" xml:lang="en-US"> 2025 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LessorOperatingLeasePaymentsToBeReceived" xlink:to="us-gaap_LessorOperatingLeasePaymentsToBeReceived_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceived_lbl" xml:lang="en-US"> Operating Leases Future Minimum Payments Receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LessorOperatingLeasePaymentsToBeReceived_lbl" xml:lang="en-US"> Operating leases, total </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xml:lang="en-US"> Property, Plant and Equipment, Useful Life </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xml:lang="en-US"> Useful lives of lease assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:to="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_lbl" xml:lang="en-US"> Schedule of Accounts, Notes, Loans and Financing Receivable [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:to="us-gaap_ValuationAllowancesAndReservesTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ValuationAllowancesAndReservesTypeAxis_lbl" xml:lang="en-US"> Valuation Allowances and Reserves Type [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="us-gaap_ValuationAllowancesAndReservesDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationAllowancesAndReservesDomain" xlink:to="us-gaap_ValuationAllowancesAndReservesDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ValuationAllowancesAndReservesDomain_lbl" xml:lang="en-US"> Valuation Allowances And Reserves [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ValuationAllowancesAndReservesDomain_lbl" xml:lang="en-US"> Valuation Allowances And Reserves [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllowanceForCreditLossMember" xlink:label="us-gaap_AllowanceForCreditLossMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForCreditLossMember" xlink:to="us-gaap_AllowanceForCreditLossMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllowanceForCreditLossMember_lbl" xml:lang="en-US"> Allowance For Credit Loss [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AllowanceForCreditLossMember_lbl" xml:lang="en-US"> Allowance For Doubtful Accounts [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember" xlink:label="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember" xlink:to="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember_lbl" xml:lang="en-US"> Valuation Adjustments on Financing Receivables [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember_lbl" xml:lang="en-US"> Valuation Adjustments On Financing Receivables [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ValuationAdjustmentsOnFinancingReceivablesMember_lbl" xml:lang="en-US"> Valuation Adjustments on Financing Receivables [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="us-gaap_AccountsNotesAndLoansReceivableLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems_lbl" xml:lang="en-US"> Accounts, Notes, Loans and Financing Receivable [Line Items] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_AllowanceForCreditLosses" xlink:label="cik0001519117_AllowanceForCreditLosses"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_AllowanceForCreditLosses" xlink:to="cik0001519117_AllowanceForCreditLosses_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_AllowanceForCreditLosses_lbl" xml:lang="en-US"> Allowance For Credit Losses. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_AllowanceForCreditLosses_lbl" xml:lang="en-US"> Allowance For Credit Losses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="cik0001519117_AllowanceForCreditLosses_lbl" xml:lang="en-US"> Ending Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="cik0001519117_AllowanceForCreditLosses_lbl" xml:lang="en-US"> Beginning Balance </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs" xlink:to="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs_lbl" xml:lang="en-US"> Allowance for Loan and Lease Losses, Write-offs </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs_lbl" xml:lang="en-US"> Write-off </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:label="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:to="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_lbl" xml:lang="en-US"> Related Party Transaction Expenses From Transactions With Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_lbl" xml:lang="en-US"> Related party transaction, total </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="us-gaap_DebtInstrumentTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTable" xlink:to="us-gaap_DebtInstrumentTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentTable_lbl" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="us-gaap_LongtermDebtTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeAxis" xlink:to="us-gaap_LongtermDebtTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xml:lang="en-US"> Long-term Debt, Type [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="us-gaap_LongtermDebtTypeDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeDomain" xlink:to="us-gaap_LongtermDebtTypeDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xml:lang="en-US"> Longterm Debt Type [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xml:lang="en-US"> Long-term Debt, Type [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="us-gaap_SecuredDebtMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SecuredDebtMember" xlink:to="us-gaap_SecuredDebtMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SecuredDebtMember_lbl" xml:lang="en-US"> Secured Debt [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SecuredDebtMember_lbl" xml:lang="en-US"> Non-Recourse Debt [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentLineItems" xlink:to="us-gaap_DebtInstrumentLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xml:lang="en-US"> Debt Instrument [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtPercentageBearingFixedInterestRate" xlink:label="us-gaap_LongTermDebtPercentageBearingFixedInterestRate"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtPercentageBearingFixedInterestRate" xlink:to="us-gaap_LongTermDebtPercentageBearingFixedInterestRate_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtPercentageBearingFixedInterestRate_lbl" xml:lang="en-US"> Long Term Debt Percentage Bearing Fixed Interest Rate </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtPercentageBearingFixedInterestRate_lbl" xml:lang="en-US"> Fixed Interest rate on note </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings" xlink:label="us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings" xlink:to="us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings_lbl" xml:lang="en-US"> Loans And Leases Receivable Collateral For Secured Borrowings </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings_lbl" xml:lang="en-US"> Gross operating lease rentals and future payments on direct financing leases </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition" xlink:label="us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition" xlink:to="us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition_lbl" xml:lang="en-US"> Assets Pledged As Collateral </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition_lbl" xml:lang="en-US"> Carrying value of pledged assets </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentMaturityDateDescription" xlink:label="us-gaap_DebtInstrumentMaturityDateDescription"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDateDescription" xlink:to="us-gaap_DebtInstrumentMaturityDateDescription_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentMaturityDateDescription_lbl" xml:lang="en-US"> Debt Instrument, Maturity Date, Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentMaturityDateDescription_lbl" xml:lang="en-US"> Note maturity date, description </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NonRecourseDebt" xlink:label="us-gaap_NonRecourseDebt"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonRecourseDebt" xlink:to="us-gaap_NonRecourseDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonRecourseDebt_lbl" xml:lang="en-US"> Non-Recourse Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NonRecourseDebt_lbl" xml:lang="en-US"> Non-recourse promissory note </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="us-gaap_LongTermDebtByMaturityAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtByMaturityAbstract" xlink:to="us-gaap_LongTermDebtByMaturityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtByMaturityAbstract_lbl" xml:lang="en-US"> Long Term Debt By Maturity [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtByMaturityAbstract_lbl" xml:lang="en-US"> Principal </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal In Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xml:lang="en-US"> Year ending December 31, 2021 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal In Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xml:lang="en-US"> 2022 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal In Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xml:lang="en-US"> 2023 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:to="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xml:lang="en-US"> Long-term Debt, Maturities, Repayments of Principal in Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xml:lang="en-US"> 2024 </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseLongTermDebtAbstract" xlink:label="us-gaap_InterestExpenseLongTermDebtAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseLongTermDebtAbstract" xlink:to="us-gaap_InterestExpenseLongTermDebtAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpenseLongTermDebtAbstract_lbl" xml:lang="en-US"> Interest Expense Long Term Debt [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestExpenseLongTermDebtAbstract_lbl" xml:lang="en-US"> Interest </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Interest In Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Interest In Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Year ending December 31, 2021 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Interest In Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Interest In Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearTwo_lbl" xml:lang="en-US"> 2022 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree_lbl" xml:lang="en-US"> Long-term debt maturities repayments of interest in year three. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Interest In Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearThree_lbl" xml:lang="en-US"> 2023 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Interest In Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Interest In Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfInterestInYearFour_lbl" xml:lang="en-US"> 2024 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtInterest" xlink:label="cik0001519117_LongTermDebtInterest"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtInterest" xlink:to="cik0001519117_LongTermDebtInterest_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtInterest_lbl" xml:lang="en-US"> Long Term Debt Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtInterest_lbl" xml:lang="en-US"> Long Term Debt Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtInterest_lbl" xml:lang="en-US"> Long-term debt interest, total </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtPrincipalAndInterestAbstract" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterestAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtPrincipalAndInterestAbstract" xlink:to="cik0001519117_LongTermDebtPrincipalAndInterestAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterestAbstract_lbl" xml:lang="en-US"> Long Term Debt Principal and Interest [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterestAbstract_lbl" xml:lang="en-US"> Long Term Debt Principal And Interest [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterestAbstract_lbl" xml:lang="en-US"> Total </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Principal and Interest In Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal And Interest In Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInNextTwelveMonths_lbl" xml:lang="en-US"> Year ending December 31, 2021 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Principal and Interest In Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal And Interest In Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearTwo_lbl" xml:lang="en-US"> 2022 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Principal and Interest In Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments Of Principal And Interest In Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearThree_lbl" xml:lang="en-US"> 2023 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour" xlink:to="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Principal and Interest In Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour_lbl" xml:lang="en-US"> Long Term Debt Maturities Repayments of Principal and Interest In Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtMaturitiesRepaymentsOfPrincipalAndInterestInYearFour_lbl" xml:lang="en-US"> 2024 </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_LongTermDebtPrincipalAndInterest" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterest"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_LongTermDebtPrincipalAndInterest" xlink:to="cik0001519117_LongTermDebtPrincipalAndInterest_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterest_lbl" xml:lang="en-US"> Long Term Debt Principal and Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterest_lbl" xml:lang="en-US"> Long Term Debt Principal And Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="cik0001519117_LongTermDebtPrincipalAndInterest_lbl" xml:lang="en-US"> Long-term debt principal and interest, total </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="us-gaap_LineOfCreditFacilityTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityTable" xlink:to="us-gaap_LineOfCreditFacilityTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityTable_lbl" xml:lang="en-US"> Line Of Credit Facility [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityTable_lbl" xml:lang="en-US"> Line of Credit Facility [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="us-gaap_LineOfCreditFacilityLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityLineItems" xlink:to="us-gaap_LineOfCreditFacilityLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xml:lang="en-US"> Line Of Credit Facility [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xml:lang="en-US"> Line of Credit Facility [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xml:lang="en-US"> Line Of Credit Facility Maximum Borrowing Capacity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xml:lang="en-US"> Maximum amount of Credit Facility </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermPurchaseCommitmentAmount" xlink:label="us-gaap_LongTermPurchaseCommitmentAmount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentAmount" xlink:to="us-gaap_LongTermPurchaseCommitmentAmount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermPurchaseCommitmentAmount_lbl" xml:lang="en-US"> Long Term Purchase Commitment Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermPurchaseCommitmentAmount_lbl" xml:lang="en-US"> Commitments to fund investments in notes receivable and purchase lease assets </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OtherMembersCapitalAccountTable" xlink:label="cik0001519117_OtherMembersCapitalAccountTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OtherMembersCapitalAccountTable" xlink:to="cik0001519117_OtherMembersCapitalAccountTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OtherMembersCapitalAccountTable_lbl" xml:lang="en-US"> Other Members Capital Account [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OtherMembersCapitalAccountTable_lbl" xml:lang="en-US"> Other Members Capital Account [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OtherMembersCapitalAccountTable_lbl" xml:lang="en-US"> Other Members Capital Account [Table] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OtherMembersCapitalAccountLineItems" xlink:label="cik0001519117_OtherMembersCapitalAccountLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OtherMembersCapitalAccountLineItems" xlink:to="cik0001519117_OtherMembersCapitalAccountLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OtherMembersCapitalAccountLineItems_lbl" xml:lang="en-US"> Other Members Capital Account [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OtherMembersCapitalAccountLineItems_lbl" xml:lang="en-US"> Other Members Capital Account [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OtherMembersCapitalAccountLineItems_lbl" xml:lang="en-US"> Other Members Capital Account [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonUnitAuthorized" xlink:label="us-gaap_CommonUnitAuthorized"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonUnitAuthorized" xlink:to="us-gaap_CommonUnitAuthorized_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonUnitAuthorized_lbl" xml:lang="en-US"> Other Members Capital Account Units Authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonUnitAuthorized_lbl" xml:lang="en-US"> Members capital account, units authorized </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount" xlink:label="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount" xlink:to="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount_lbl" xml:lang="en-US"> Potential Repurchase Price of Units as Percentage of Holder's Capital Account </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount_lbl" xml:lang="en-US"> Potential Repurchase Price Of Units As Percentage Of Holders Capital Account </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_PotentialRepurchasePriceOfUnitsAsPercentageOfHoldersCapitalAccount_lbl" xml:lang="en-US"> Potential repurchase price of Units as percentage of holder's capital account </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage" xlink:to="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage_lbl" xml:lang="en-US"> Operating Company Net Income (Loss), Allocation Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage_lbl" xml:lang="en-US"> Operating Company Net Income Loss Allocation Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentage_lbl" xml:lang="en-US"> Allocation of net income and net loss </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate" xlink:to="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate_lbl" xml:lang="en-US"> Operating Company Net Income Loss Allocation Percentage from Commencement until Initial Closing Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate_lbl" xml:lang="en-US"> Operating Company Net Income Loss Allocation Percentage From Commencement Until Initial Closing Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OperatingCompanyNetIncomeLossAllocationPercentageFromCommencementUntilInitialClosingDate_lbl" xml:lang="en-US"> Allocation of net income and net losses from commencement until initial closing date </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_OtherMembersCapitalAccountDistributionPercentage" xlink:label="cik0001519117_OtherMembersCapitalAccountDistributionPercentage"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_OtherMembersCapitalAccountDistributionPercentage" xlink:to="cik0001519117_OtherMembersCapitalAccountDistributionPercentage_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_OtherMembersCapitalAccountDistributionPercentage_lbl" xml:lang="en-US"> Other Members Capital Account Distribution Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_OtherMembersCapitalAccountDistributionPercentage_lbl" xml:lang="en-US"> Other Members Capital Account Distribution Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_OtherMembersCapitalAccountDistributionPercentage_lbl" xml:lang="en-US"> Percentage of fund distributions </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US"> Fair Value By Fair Value Hierarchy Level [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US"> Fair Value Measurements Fair Value Hierarchy [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US"> Fair Value, Measurements, Fair Value Hierarchy [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="us-gaap_FairValueInputsLevel3Member"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xml:lang="en-US"> Fair Value Inputs Level3 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xml:lang="en-US"> Level 3 Estimated Fair Value [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_WarrantsConvertedToSecurities" xlink:label="cik0001519117_WarrantsConvertedToSecurities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_WarrantsConvertedToSecurities" xlink:to="cik0001519117_WarrantsConvertedToSecurities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_WarrantsConvertedToSecurities_lbl" xml:lang="en-US"> arrants converted to securities. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_WarrantsConvertedToSecurities_lbl" xml:lang="en-US"> Warrants converted to securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_WarrantsConvertedToSecurities_lbl" xml:lang="en-US"> Warrants converted to securities </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="us-gaap_FairValueInputsLevel1Member"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xml:lang="en-US"> Fair Value Inputs Level1 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xml:lang="en-US"> Level 1 Estimated Fair Value [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="us-gaap_InvestmentsFairValueDisclosure"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xml:lang="en-US"> Investments Fair Value Disclosure </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xml:lang="en-US"> Fair value of securities at the end of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xml:lang="en-US"> Fair value of securities at the beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xml:lang="en-US"> Investment in securities </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities" xlink:label="cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities" xlink:to="cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities_lbl" xml:lang="en-US"> Conversion of previously held private securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ConversionOfPreviouslyHeldPrivateSecurities_lbl" xml:lang="en-US"> Conversion of previously held private securities </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_SecuritiesSoldAtFairValue" xlink:label="cik0001519117_SecuritiesSoldAtFairValue"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_SecuritiesSoldAtFairValue" xlink:to="cik0001519117_SecuritiesSoldAtFairValue_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_SecuritiesSoldAtFairValue_lbl" xml:lang="en-US"> Securities sold at Fair value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_SecuritiesSoldAtFairValue_lbl" xml:lang="en-US"> Securities sold at Fair value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_SecuritiesSoldAtFairValue_lbl" xml:lang="en-US"> Equities sold </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xml:lang="en-US"> Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ImpairedOffLeaseEquipment" xlink:label="cik0001519117_ImpairedOffLeaseEquipment"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ImpairedOffLeaseEquipment" xlink:to="cik0001519117_ImpairedOffLeaseEquipment_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ImpairedOffLeaseEquipment_lbl" xml:lang="en-US"> Impaired off-Lease Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ImpairedOffLeaseEquipment_lbl" xml:lang="en-US"> Impaired off-Lease Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ImpairedOffLeaseEquipment_lbl" xml:lang="en-US"> Impaired off-lease equipment, Range of Input Values </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="cik0001519117_ImpairedOffLeaseEquipment_lbl" xml:lang="en-US"> Impaired lease and off-lease equipment </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="us-gaap_FairValueByMeasurementFrequencyAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xml:lang="en-US"> Measurement Frequency [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="us-gaap_FairValueMeasurementFrequencyDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xml:lang="en-US"> Fair Value Measurement Frequency [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xml:lang="en-US"> Fair Value, Measurement Frequency [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="us-gaap_FairValueMeasurementsRecurringMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsRecurringMember" xlink:to="us-gaap_FairValueMeasurementsRecurringMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xml:lang="en-US"> Fair Value Measurements Recurring [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xml:lang="en-US"> Recurring [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember" xlink:label="us-gaap_FairValueMeasurementsNonrecurringMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsNonrecurringMember" xlink:to="us-gaap_FairValueMeasurementsNonrecurringMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementsNonrecurringMember_lbl" xml:lang="en-US"> Fair Value Measurements Nonrecurring [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementsNonrecurringMember_lbl" xml:lang="en-US"> Nonrecurring [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="us-gaap_FairValueByAssetClassAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByAssetClassAxis" xlink:to="us-gaap_FairValueByAssetClassAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xml:lang="en-US"> Asset Class [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US"> Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US"> Fair Value by Asset Class [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WarrantMember" xlink:label="us-gaap_WarrantMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantMember" xlink:to="us-gaap_WarrantMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US"> Warrant [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US"> Warrant [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ValuationTechniqueAxis" xlink:label="us-gaap_ValuationTechniqueAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationTechniqueAxis" xlink:to="us-gaap_ValuationTechniqueAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ValuationTechniqueAxis_lbl" xml:lang="en-US"> Valuation Technique [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ValuationTechniqueDomain" xlink:label="us-gaap_ValuationTechniqueDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ValuationTechniqueDomain" xlink:to="us-gaap_ValuationTechniqueDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xml:lang="en-US"> Valuation Technique [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ValuationTechniqueDomain_lbl" xml:lang="en-US"> Valuation Technique [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_BlackScholesFormulationMember" xlink:label="cik0001519117_BlackScholesFormulationMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_BlackScholesFormulationMember" xlink:to="cik0001519117_BlackScholesFormulationMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_BlackScholesFormulationMember_lbl" xml:lang="en-US"> Black-Scholes Formulation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_BlackScholesFormulationMember_lbl" xml:lang="en-US"> Black Scholes Formulation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_BlackScholesFormulationMember_lbl" xml:lang="en-US"> Black-Scholes Formulation [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MarketApproachValuationTechniqueMember" xlink:label="us-gaap_MarketApproachValuationTechniqueMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketApproachValuationTechniqueMember" xlink:to="us-gaap_MarketApproachValuationTechniqueMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketApproachValuationTechniqueMember_lbl" xml:lang="en-US"> Market Approach Valuation Technique [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketApproachValuationTechniqueMember_lbl" xml:lang="en-US"> Market Approach Valuation Technique [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="us-gaap_MeasurementInputTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputTypeAxis" xlink:to="us-gaap_MeasurementInputTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xml:lang="en-US"> Measurement Input Type [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="us-gaap_MeasurementInputTypeDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputTypeDomain" xlink:to="us-gaap_MeasurementInputTypeDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xml:lang="en-US"> Measurement Input Type [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xml:lang="en-US"> Measurement Input Type [Domain] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputSharePriceMember" xlink:label="us-gaap_MeasurementInputSharePriceMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputSharePriceMember" xlink:to="us-gaap_MeasurementInputSharePriceMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xml:lang="en-US"> Measurement Input Share Price [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xml:lang="en-US"> Unobservable Inputs, Stock Price [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputExercisePriceMember" xlink:label="us-gaap_MeasurementInputExercisePriceMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputExercisePriceMember" xlink:to="us-gaap_MeasurementInputExercisePriceMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputExercisePriceMember_lbl" xml:lang="en-US"> Measurement Input Exercise Price [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputExercisePriceMember_lbl" xml:lang="en-US"> Unobservable Inputs, Exercise Price [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputExpectedTermMember" xlink:label="us-gaap_MeasurementInputExpectedTermMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputExpectedTermMember" xlink:to="us-gaap_MeasurementInputExpectedTermMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xml:lang="en-US"> Measurement Input Expected Term [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xml:lang="en-US"> Unobservable Inputs, Time to Maturity (in Years) [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputRiskFreeInterestRateMember" xlink:to="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xml:lang="en-US"> Measurement Input Risk Free Interest Rate [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xml:lang="en-US"> Unobservable Inputs, Risk Free Interest Rate [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputPriceVolatilityMember" xlink:to="us-gaap_MeasurementInputPriceVolatilityMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xml:lang="en-US"> Measurement Input Price Volatility [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xml:lang="en-US"> Unobservable Inputs, Annualized Volatility [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputQuotedPriceMember" xlink:label="us-gaap_MeasurementInputQuotedPriceMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputQuotedPriceMember" xlink:to="us-gaap_MeasurementInputQuotedPriceMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MeasurementInputQuotedPriceMember_lbl" xml:lang="en-US"> Measurement Input Quoted Price [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MeasurementInputQuotedPriceMember_lbl" xml:lang="en-US"> Unobservable Inputs, Third Party Agents' pricing Quotes - Per Equipment [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:to="us-gaap_WarrantsAndRightsOutstandingMeasurementInput_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantsAndRightsOutstandingMeasurementInput_lbl" xml:lang="en-US"> Warrants and Rights Outstanding, Measurement Input </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WarrantsAndRightsOutstandingMeasurementInput_lbl" xml:lang="en-US"> Warrants, Range of Input Values </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingTable" xlink:to="us-gaap_FairValueByBalanceSheetGroupingTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" xml:lang="en-US"> Fair Value By Balance Sheet Grouping [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" xml:lang="en-US"> Fair Value, by Balance Sheet Grouping [Table] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis" xlink:label="us-gaap_FairValueByMeasurementBasisAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByMeasurementBasisAxis" xlink:to="us-gaap_FairValueByMeasurementBasisAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByMeasurementBasisAxis_lbl" xml:lang="en-US"> Measurement Basis [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:to="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl" xml:lang="en-US"> Portion At Fair Value Fair Value Disclosure [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl" xml:lang="en-US"> Portion at Fair Value Measurement [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:to="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" xml:lang="en-US"> Carrying Reported Amount Fair Value Disclosure [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" xml:lang="en-US"> Carrying Amount [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:to="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xml:lang="en-US"> Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xml:lang="en-US"> Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xlink:to="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl" xml:lang="en-US"> Financial Instruments Financial Assets Balance Sheet Groupings [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl" xml:lang="en-US"> Financial assets: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xml:lang="en-US"> Cash And Cash Equivalents Fair Value Disclosure </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xml:lang="en-US"> Cash and cash equivalents </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xlink:to="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl" xml:lang="en-US"> Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl" xml:lang="en-US"> Financial liabilities: </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayableFairValueDisclosure" xlink:label="us-gaap_NotesPayableFairValueDisclosure"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayableFairValueDisclosure" xlink:to="us-gaap_NotesPayableFairValueDisclosure_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xml:lang="en-US"> Notes Payable Fair Value Disclosure </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xml:lang="en-US"> Non-recourse debt </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xml:lang="en-US"> Investment Type [Axis] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="us-gaap_InvestmentTypeCategorizationMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xml:lang="en-US"> Investment Type Categorization [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xml:lang="en-US"> Investments [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember" xlink:label="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember" xlink:to="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember_lbl" xml:lang="en-US"> Securities With Readily Determinable Fair Values [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember_lbl" xml:lang="en-US"> Securities With Readily Determinable Fair Values [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_SecuritiesWithReadilyDeterminableFairValuesMember_lbl" xml:lang="en-US"> Securities With Readily Determinable Fair Values [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_ElectricGasSanitationMember" xlink:label="cik0001519117_ElectricGasSanitationMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_ElectricGasSanitationMember" xlink:to="cik0001519117_ElectricGasSanitationMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_ElectricGasSanitationMember_lbl" xml:lang="en-US"> Electric/Gas/Sanitation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_ElectricGasSanitationMember_lbl" xml:lang="en-US"> Electric Gas Sanitation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_ElectricGasSanitationMember_lbl" xml:lang="en-US"> Electric/Gas/Sanitation [Member] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_MaterialHandlingMember" xlink:label="cik0001519117_MaterialHandlingMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_MaterialHandlingMember" xlink:to="cik0001519117_MaterialHandlingMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_MaterialHandlingMember_lbl" xml:lang="en-US"> Material Handling [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_MaterialHandlingMember_lbl" xml:lang="en-US"> Material Handling [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_MaterialHandlingMember_lbl" xml:lang="en-US"> Material Handling [Member] </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US"> Legal Entity [Axis] </label>
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityDomain" xlink:to="dei_EntityDomain_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityDomain_lbl" xml:lang="en-US"> Entity [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityDomain_lbl" xml:lang="en-US"> Entity [Domain] </label>
<loc xlink:type="locator" xlink:href="atel-20201231.xsd#cik0001519117_Atel14LlcMember" xlink:label="cik0001519117_Atel14LlcMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="cik0001519117_Atel14LlcMember" xlink:to="cik0001519117_Atel14LlcMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cik0001519117_Atel14LlcMember_lbl" xml:lang="en-US"> ATEL 14, LLC [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cik0001519117_Atel14LlcMember_lbl" xml:lang="en-US"> Atel14 Llc [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="cik0001519117_Atel14LlcMember_lbl" xml:lang="en-US"> ATEL 14, LLC [Member] </label>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_WeightedAverageMember" xlink:label="srt_WeightedAverageMember"/>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_WeightedAverageMember" xlink:to="srt_WeightedAverageMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_WeightedAverageMember_lbl" xml:lang="en-US"> Weighted Average [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_WeightedAverageMember_lbl" xml:lang="en-US"> Weighted Average [Member] </label>
</labelLink>
</linkbase>

1 Previous Filing that this Filing References

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

11/01/11  Atel 15, LLC                      424B3                  1:4.4M                                   Toppan Merrill/FA
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