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U.S. Standard Industrial Classification (SIC)

SIC Businesses & Products

SIC [1987]  →  A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z

341  Beginning With ‘I’

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SIC Code  Business  or  Product  Registrants
In ascending order  
3822Ice bank controls35
3632Ice boxes, household*
3585Ice boxes, industrial71
3089Ice buckets, plastics: except foam168
3429Ice chests or coolers, portable, except insulated foam plastics*
3089Ice chests or coolers, portable, plastics: except insulated or foam plastics168
3086Ice chests or coolers, portable: foamed plastics26
5451Ice cream (packaged) stores – retail*
5143Ice cream and ices – wholesale*
5078Ice cream cabinets – wholesale*
3411Ice cream cans, metal30
2657Ice cream containers, folding paperboard – made from purchased materials*
2656Ice cream containers, nonfolding paperboard – made from purchased materials*
3469Ice cream dippers*
3499Ice cream freezers, household, nonelectric: metal*
3556Ice cream manufacturing machinery*
2023Ice cream mix, unfrozen: liquid or dry*
5812Ice cream stands549
5963Ice cream wagons – retail*
2024Ice cream: e.g., bulk, packaged, molded, on sticks20
3634Ice crushers, electric44
3569Ice crushers, except household71
2097Ice cubes*
5999Ice dealers – retail*
7941Ice hockey clubs, professional or semiprofessional*
3822Ice maker controls35
3585Ice making machinery71
5078Ice making machines – wholesale*
2023Ice milk mix, unfrozen: liquid or dry*
2024Ice milk: e.g., bulk, packaged, molded, on sticks20
2097Ice plants, operated by public utilities*
7999Ice skating rink operation1
2097Ice, manufactured or artificial: except dry ice*
5199Ice, manufactured or natural – wholesale*
2086Iced tea, bottled or canned85
1499Iceland spar mining (optical grade calcite)1
2024Ices and sherbets20
7389Identification engraving service2,045
3999Identification plates*
3999Identification tags, except paper*
5043Identity recorders for photographing checks and fingerprints – wholesale*
2899Igniter grains, boron potassium nitrate*
3694Ignition cable sets or wire assemblies for internal combustion engines*
3822Ignition controls for gas appliances and furnaces, automatic35
3694Ignition systems, high frequency*
3825Ignition testing instruments93
3612Ignition transformers23
3229Illuminating glass: light shades, reflectors, lamp chimneys, and globes*
1099Ilmenite mining1
3299Images, small: gypsum, clay, or papier-mache-factory production only*
9721Immigration services – government5
9431Immunization program administration – government–
3679Impedance conversion units, high frequency159
3825Impedance measuring equipment93
3824Impeller and counter driven flow meters11
3842Implants, surgical187
1389Impounding and storing salt water in connection with petroleum production171
4971Impounding reservoirs, irrigation*
3843Impression material, dental40
2759Imprinting, except lithographed or gravure*
2754Imprinting: gravure*
2835In vitro diagnostics206
2835In vivo diagnostics206
2835In vivo radioactive reagents206
3822In-built thermostats, filled system and bimetal types35
2899Incense*
3822Incinerator control systems, residential and commercial types35
1796Incinerator installation, small-contractors*
4953Incinerator operation138
3272Incinerators, concrete32
3567Incinerators, metal: domestic and commercial14
7291Income tax return preparation services without accounting, auditing, or bookkeeping services*
3523Incubators, except laboratory and infant49
3821Incubators, laboratory30
2675Index and other cut cards – made from purchased materials*
3952India ink*
3949Indian clubs124
5084Indicating instruments and accessories – wholesale51
3825Indicating instruments, electric93
2819Indium chloride*
3567Induction heating equipment14
1541Industrial building construction-general contractors*
3625Industrial controls: push button, selector switches, and pilot*
8748Industrial development planning service, commercial*
5812Industrial feeding549
5085Industrial fittings – wholesale*
2326Industrial garments: men’s and boys’ – made from purchased materials*
5169Industrial gases – wholesale*
3229Industrial glassware and glass products, pressed or blown*
3231Industrial glassware, made from purchased glass25
1629Industrial incinerator construction-general contractors*
8731Industrial laboratories, commercial research: except testing325
7218Industrial launderers*
6141Industrial loan `banks’, not engaged in deposit banking194
6141Industrial loan companies, not engaged in deposit banking194
3743Industrial locomotives and parts34
3544Industrial molds*
7812Industrial motion picture production310
5063Industrial motor controls – wholesale36
2869Industrial organic cyclic compounds*
1629Industrial plant appurtenance construction-general contractors*
1541Industrial plant construction-general contractors*
2842Industrial plant disinfectants and deodorants43
3823Industrial process control instruments110
5047Industrial safety devices: first-aid kits, face and eye masks – wholesale106
1446Industrial sand mining*
3596Industrial scales*
5085Industrial sewing thread – wholesale*
2899Industrial sizes*
8611Industrial standards committees*
3537Industrial truck cranes34
7359Industrial truck rental and leasing314
7699Industrial truck repair*
3537Industrial trucks and tractors34
7218Industrial uniform supply service*
5085Industrial wheels – wholesale*
5199Industrial yarn – wholesale*
3812Inertial navigation systems, aeronautical124
3842Infant incubators187
2043Infants’ foods, cereal type*
5137Infants’ wear – wholesale*
5641Infants’ wear stores – retail*
7375Information retrieval services, online*
3812Infrared homing systems, aeronautical124
3823Infrared instruments, industrial process type110
3641Infrared lamp bulbs*
3567Infrared ovens, industrial14
3674Infrared sensors, solid-state547
3826Infrared type analytical instruments, laboratory type126
3321Ingot molds and stools*
3355Ingot, aluminum: made in rolling mills*
5051Ingots – wholesale35
3341Ingots, nonferrous: smelting and refining-secondary11
3339Ingots, primary: nonferrous metals, except copper and aluminum*
3312Ingots, steel141
8049Inhalation therapists, registered*
3841Inhalation therapy equipment654
3841Inhalators, surgical and medical654
2842Ink eradicators43
2842Ink, burnishing43
3952Ink, drawing: black and colored*
2893Ink, duplicating*
5085Ink, printers’ – wholesale*
5112Inked ribbons – wholesale*
3229Inkwells, glass*
3131Inner soles, leather*
3011Inner tubes: airplane, automobile, bicycle, motorcycle, and tractor13
7011Inns, furnishing food and lodging506
2819Inorganic acids, except nitric or phosphoric*
3577Input/output equipment, computer: except terminals235
0721Insect control for crops, with or without fertilizing*
2879Insect powder, household*
3496Insect screening, woven wire: made from purchased wire*
5191Insecticides – wholesale1
2879Insecticides, agricultural*
3545Inserts, cutting tool*
2399Insignia, military: textile*
9651Inspection for labor standards – government–
7389Inspection of commodities, not connected with transportation2,045
7549Inspection service, automotive*
4785Inspection services connected with transportation*
1796Installation of machinery and other industrial equipment-contractors*
6153Installment notes, buying of182
6153Installment paper dealer182
6141Installment sales finance, other than banks194
2752Instant printing, except photocopy service*
1542Institutional building construction, nonresidential-general contractors*
3714Instrument board assemblies, motor vehicle366
3812Instrument landing system instrumentation, airborne or airport124
3728Instrument panel mockups: aircraft training units158
3825Instrument relays, all types93
3825Instrument shunts93
3495Instrument springs, precision: made from purchased wire*
3612Instrument transformers, except portable23
3829Instrumentation for reactor controls, auxiliary131
3695Instrumentation type tape, blank14
3841Instruments and apparatus, except electromedical: medical, surgical, ophthalmic, and veterinary654
3825Instruments for measuring electrical quantities93
3825Instruments, electric: for testing electrical characteristics93
3841Instruments, microsurgical: except electromedical654
2679Insulating batts, fills, and blankets: paper – made from purchased materials*
2899Insulating compounds*
3255Insulating firebrick and shapes, clay*
3211Insulating glass, sealed units – made in the same establishment4
2499Insulating materials, cork*
3275Insulating plaster, gypsum*
2493Insulating siding, board – made in the same establishment*
2952Insulating siding, impregnated – made from purchased materials*
2241Insulating tapes and braids, electric, except plastics*
3086Insulation and cushioning: foamed plastics26
2493Insulation board, cellular fiber or hard pressed (without gypsum) – made in the same establishment*
1742Insulation installation, buildings-contractors*
5211Insulation material, building – retail41
1799Insulation of pipes and boilers-contractors*
2679Insulation, cellulose – made from purchased materials*
3292Insulation, molded asbestos*
5033Insulation, thermal – wholesale*
3296Insulation: rock wool, fiberglass, slag, and silica minerals*
2298Insulator pads, cordage*
5063Insulators, electrical – wholesale36
3644Insulators, electrical: except glass and ceramic*
3229Insulators, electrical: glass*
3264Insulators, porcelain*
2834Insulin preparations1,955
2833Insulin: bulk, uncompounded207
3299Insulsleeves (foundry materials)*
6411Insurance adjusters157
6411Insurance advisory services157
6411Insurance agents157
6411Insurance brokers157
6512Insurance buildings, operation of228
6321Insurance carriers, accident624
6321Insurance carriers, health624
6311Insurance carriers, life577
6331Insurance carriers: fire, marine, and casualty486
6411Insurance claim adjusters, not employed by insurance companies157
9651Insurance commissions – government–
6411Insurance educational services157
6411Insurance information bureaus157
6411Insurance inspection and investigation services157
6411Insurance loss prevention services157
6411Insurance patrol services157
8099Insurance physical examination service, except by physicians3
6411Insurance professional standards services157
6411Insurance reporting services157
6411Insurance research services157
6411Insurance services157
2851Intaglio ink vehicle50
2754Intaglio printing*
3825Integrated-circuit testers93
3825Integrating electricity meters93
3824Integrating meters, nonelectric11
3432Interceptors, plumbers’*
4131Intercity bus lines*
4424Intercoastal transportation of freight*
3669Intercommunication systems, electric219
1731Intercommunications equipment installation-contractors61
7622Intercommunications equipment repair*
5065Intercommunications equipment, electronic – wholesale91
3443Intercooler shells35
3827Interferometers53
7389Interior decorating consulting service, except painters and paperhangers2,045
7389Interior designing service, except painters and paperhangers2,045
2211Interlining material, cotton34
8052Intermediate care facilities*
6159Intermediate investment `banks’120
3462Internal combustion engine (stationary and mobile) forgings, ferrous: not made in rolling mills*
3825Internal combustion engine analyzers, to test electrical characteristics93
3519Internal combustion engines, except aircraft and nondiesel automotive*
4131Interstate bus lines*
3555Intertype machines22
4131Interurban bus lines*
3743Interurban cars and car equipment34
4011Interurban railways66
3851Intra ocular lenses48
4449Intracoastal freight transportation*
3842Intrauterine devices187
2834Intravenous solutions1,955
7352Invalid supplies rental and leasing*
8999Inventors1
2782Inventory blankbooks*
7389Inventory computing service2,045
3629Inverters, nonrotating: electrical*
3621Inverters, rotating: electrical62
7381Investigators, private72
6282Investment advisory service195
6211Investment bankers299
3324Investment castings, steel*
6211Investment certificates, sale of299
6799Investment clubs267
6159Investment companies, small business120
6282Investment counselors195
6211Investment firm – general brokerage299
6726Investment funds, closed-end: management of1
6719Investment holding companies, except bank1
3843Investment material, dental40
6282Investment research195
6726Investors’ syndicates1
2759Invitations, engraved*
2819Iodides*
2835Iodinated diagnostic agents206
2819Iodine, elemental*
2819Iodine, resublimed*
2834Iodine, tincture of1,955
3829Ion chambers131
2821Ion exchange resins102
2821Ionomer resins102
2869Ionone*
1099Iridium ore mining1
3339Iridium refining, primary*
3341Iridium smelting and refining, secondary11
1011Iron agglomerate and pellet production*
5051Iron and steel flat products – wholesale35
5093Iron and steel scrap – wholesale*
5051Iron and steel semifinished products – wholesale35
2816Iron blue pigments*
2891Iron cement, household20
2816Iron colors*
3842Iron lungs187
5052Iron ore – wholesale*
1011Iron ore dressing (beneficiation) plants*
1011Iron ore mining*
1011Iron ore, blocked: mining*
2816Iron oxide, black*
2816Iron oxide, magnetic*
2816Iron oxide, yellow*
3312Iron sinter, made in steel mills141
2819Iron sulphate*
1791Iron work, structural-contractors*
3312Iron, pig141
3399Iron, powdered*
3469Ironer parts, porcelain enameled*
3633Ironers and mangles, household, except portable irons*
3582Ironers, commercial laundry and drycleaning*
5064Ironers, household: electric – wholesale18
2392Ironing board pads – made from purchased materials*
3499Ironing boards, metal*
3634Irons, domestic: electric44
3953Irons, marking or branding*
3423Ironworkers’ handtools*
3844Irradiation equipment28
9631Irrigation districts – nonoperating–
5083Irrigation equipment – wholesale*
3523Irrigation equipment, self-propelled49
3272Irrigation pipe, concrete32
3444Irrigation pipe, sheet metal14
1629Irrigation projects construction-general contractors*
4971Irrigation system operation*
0721Irrigation system operation services (not providing water)*
1321Isobutane (natural) production*
2821Isobutylene polymers102
2822Isobutylene-isoprene rubbers*
2822Isocyanate type rubber*
2865Isocyanates*
3612Isolation transformers23
2822Isoprene rubbers, synthetic*
2869Isopropyl alcohol*
2819Isotopes, radioactive*
6726Issuing of face-amount installment certificates1
2032Italian foods, canned*
3841IV transfusion apparatus654
________
 *  There are SEC Registrants, but only at the 2- or 3-digit SIC Code levels.
 
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