NAICS Codes by Business Activity: U
215 business activities
| Business activity | NAICS code | Size standard |
|---|---|---|
| U-lock storage | 531130 Lessors of Miniwarehouses and Self-Storage Units | $34 million in average annual receipts |
| U. S. attorneys' offices | 922130 Legal Counsel and Prosecution | — |
| U.S. Central Credit Union | 522320 Financial Transactions Processing, Reserve, and Clearinghouse Activities | $47 million in average annual receipts |
| UHT (ultra high temperature) milk manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Ukuleles and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Ulexite mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Ultra light aircraft manufacturing | 336411 Aircraft Manufacturing | 1,500 employees |
| Ultramarine pigments manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Ultrasonic boring, drilling, and cutting machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Ultrasonic cleaning equipment (except dental, medical) manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Ultrasonic dental equipment manufacturing | 339114 Dental Equipment and Supplies Manufacturing | 750 employees |
| Ultrasonic generators sold separately for inclusion in tools and equipment manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Ultrasonic medical cleaning equipment manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Ultrasonic medical equipment manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Ultrasonic metal forming machines manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Ultrasonic scanning devices, medical, manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Ultrasonic testing equipment (except medical) manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Ultrasonic welding equipment manufacturing | 333992 Welding and Soldering Equipment Manufacturing | 1,250 employees |
| Ultrasound imaging centers | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| Ultraviolet lamp bulbs manufacturing | 335110 Electric Lamp Bulb and Part Manufacturing | 1,250 employees |
| Ultraviolet lamp fixtures manufacturing | 335129 Other Lighting Equipment Manufacturing | 500 employees |
| Ultraviolet-type analytical instruments manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Umber manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Umber mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Umbrellas manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Umbrellas, men's and boys', merchant wholesalers | 424320 Men's and Boys' Clothing and Furnishings Merchant Wholesalers | 150 employees |
| Uncoated groundwood paper mills | 322122 Newsprint Mills | 750 employees |
| Undercoating shops, automotive | 811198 All Other Automotive Repair and Maintenance | $10 million in average annual receipts |
| Underground cable (e.g., cable television, electricity, telephone) laying | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Underground mining machinery manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Underground tank (except hazardous material) removal | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Underpass construction | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Underpinning, construction | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Undertaker services | 812210 Funeral Homes and Funeral Services | $12.5 million in average annual receipts |
| Undertakers' equipment and supplies merchant wholesalers | 423850 Service Establishment Equipment and Supplies Merchant Wholesalers | 125 employees |
| Underwater lighting fixtures manufacturing | 335129 Other Lighting Equipment Manufacturing | 500 employees |
| Underwater navigational systems manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Underwater remotely operated vehicles (ROVs) manufacturing | 336612 Boat Building | 1,000 employees |
| Underwear cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Underwear made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Underwear shirts cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Underwear shirts made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Underwear shirts, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Underwear shirts, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Underwear shirts, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear shirts, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Underwear shirts, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear shirts, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing | — |
| Underwear shorts cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Underwear shorts made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Underwear shorts, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Underwear shorts, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Underwear shorts, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear shorts, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Underwear shorts, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear shorts, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing | — |
| Underwear, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Underwear, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Underwear, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear, men's and boys', merchant wholesalers | 424320 Men's and Boys' Clothing and Furnishings Merchant Wholesalers | 150 employees |
| Underwear, women's, children's, and infants', merchant wholesalers | 424330 Women's, Children's, and Infants' Clothing and Accessories Merchant Wholesalers | 100 employees |
| Underwear, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Underwear, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing | — |
| Underwear, women's, misses', girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Underwriting securities | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Unemployment insurance program administration | 923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs) | — |
| Uniform (except industrial) supply services | 812331 Linen Supply | $40 million in average annual receipts |
| Uniform hats and caps cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniform hats and caps cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Uniform hats and caps, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniform hats and caps, women's, and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uniform shirts (except team athletic), men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniform shirts (except team athletic), women's and girls', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniform shirts (except team athletic), women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315232 Women's and Girls' Cut and Sew Blouse and Shirt Manufacturing | — |
| Uniform shirts (except team athletic, work), men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315223 Men's and Boys' Cut and Sew Shirt (except Work Shirt) Manufacturing | — |
| Uniform shirts cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniform shirts, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniform shirts, team athletic, cut and sewn from purchased fabric (except apparel contractors) | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Uniform shirts, women's and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uniform shirts, work, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315225 Men's and Boys' Cut and Sew Work Clothing Manufacturing | — |
| Uniform stores (except athletic) | 448190 Other Clothing Stores | $27.5 million in average annual receipts |
| Uniform stores, athletic | 451110 Sporting Goods Stores | $23.5 million in average annual receipts |
| Uniform supply services, industrial | 812332 Industrial Launderers | $47 million in average annual receipts |
| Uniforms (except team athletic), nontailored, women's and girls', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, band, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniforms, band, cut and sewn from purchased fabric (except apparel contractors) | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, band, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniforms, band, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uniforms, dress (e.g., fire fighter, military, police), men's, cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniforms, dress (e.g., fire fighter, military, police), men's, cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, dress (e.g., military, police, fire fighter), cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniforms, dress (e.g., military, police, fire fighter), women's, cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uniforms, dress, tailored (e.g., fire fighter, military, police), women's and girls', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, dress, tailored (e.g., fire fighter, military, police), women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315234 Women's and Girls' Cut and Sew Suit, Coat, Tailored Jacket, and Skirt Manufacturing | — |
| Uniforms, nontailored (except work), men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315228 Men's and Boys' Cut and Sew Other Outerwear Manufacturing | — |
| Uniforms, nontailored work, men's, cut and sewn from purchased fabric (except apparel contractors) | 315225 Men's and Boys' Cut and Sew Work Clothing Manufacturing | — |
| Uniforms, nontailored, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniforms, nontailored, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Uniforms, nontailored, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniforms, nontailored, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, nontailored, women's and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uniforms, nontailored, women's, misses', and girls', cut and sewn from purchased fabric (except team athletic, apparel contractors) | 315239 Women's and Girls' Cut and Sew Other Outerwear Manufacturing | — |
| Uniforms, team athletic, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Uniforms, team athletic, cut and sewn from purchased fabric (except apparel contractors) | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Uniforms, team athletic, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Uniforms, team athletic, women's and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Uninterruptible power supplies (UPS) manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Union health and welfare funds | 525120 Health and Welfare Funds | $40 million in average annual receipts |
| Union pension funds | 525110 Pension Funds | $40 million in average annual receipts |
| Union suits cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Union suits made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Union suits, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Union suits, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Union suits, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Union suits, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Union suits, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Union suits, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315231 Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing | — |
| Unions (except apprenticeship programs), labor | 813930 Labor Unions and Similar Labor Organizations | $16.5 million in average annual receipts |
| Unions, credit | 522130 Credit Unions | $850 million in assets |
| Unions, pipe, metal (except made from purchased pipe), manufacturing | 332919 Other Metal Valve and Pipe Fitting Manufacturing | 750 employees |
| Unisex clothing merchant wholesalers | 424330 Women's, Children's, and Infants' Clothing and Accessories Merchant Wholesalers | 100 employees |
| Unisex clothing stores | 448140 Family Clothing Stores | $41.5 million in average annual receipts |
| Unisex hair stylist shops | 812112 Beauty Salons | $9.5 million in average annual receipts |
| Unit heaters (except portable electric) manufacturing | 333414 Heating Equipment (except Warm Air Furnaces) Manufacturing | 500 employees |
| Unit heaters, portable electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Unit investment trust funds | 525990 Other Financial Vehicles | $40 million in average annual receipts |
| Unit set forms (e.g., manifold credit card slips) printing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| United fund councils | 813219 Other Grantmaking and Giving Services | $47 million in average annual receipts |
| United funds for colleges | 813219 Other Grantmaking and Giving Services | $47 million in average annual receipts |
| United Nations | 928120 International Affairs | — |
| Universal joints (except aircraft, motor vehicle) manufacturing | 333613 Mechanical Power Transmission Equipment Manufacturing | 750 employees |
| Universal joints, aircraft, manufacturing | 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing | 1,250 employees |
| Universal joints, automotive, truck, and bus, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Universities | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| University clubs | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| University press publishers (except exclusive Internet publishing) | 511130 Book Publishers | 1,000 employees |
| University press publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| University regents or boards, government | 923110 Administration of Education Programs | — |
| Unleavened bread made in commercial bakeries | 311812 Commercial Bakeries | 1,000 employees |
| Unloaded computer board merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Upholstered furniture, household-type, custom, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Upholstered furniture, household-type, on frames of any material, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Upholsterers' equipment and supplies (except fabrics) merchant wholesalers | 423850 Service Establishment Equipment and Supplies Merchant Wholesalers | 125 employees |
| Upholstering filling (except nonwoven fabric) manufacturing | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Upholstery (except motor vehicle) repair services | 811420 Reupholstery and Furniture Repair | $9 million in average annual receipts |
| Upholstery cleaning on customers' premises | 561740 Carpet and Upholstery Cleaning Services | $8.5 million in average annual receipts |
| Upholstery cleaning services | 561740 Carpet and Upholstery Cleaning Services | $8.5 million in average annual receipts |
| Upholstery leather manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Upholstery materials stores | 451130 Sewing, Needlework, and Piece Goods Stores | $30 million in average annual receipts |
| Upholstery shops, automotive | 811121 Automotive Body, Paint, and Interior Repair and Maintenance | $9 million in average annual receipts |
| Upholstery springs and spring units, light gauge, made from purchased wire or strip | 332613 Spring Manufacturing | 600 employees |
| Upper leather manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Uppers (i.e., shoe cut stock), leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| UPS (uninterruptible power supplies) manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Upset forgings made from purchased iron or steel, unfinished | 332111 Iron and Steel Forging | 750 employees |
| Upset forgings made from purchased nonferrous metals, unfinished | 332112 Nonferrous Forging | 950 employees |
| Upsetters (i.e., forging machines) manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Uraninite (pitchblende) mining and/or beneficiating | 212291 Uranium-Radium-Vanadium Ore Mining | 250 employees |
| Uranium compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Uranium ores mining and/or beneficiating | 212291 Uranium-Radium-Vanadium Ore Mining | 250 employees |
| Uranium oxide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Uranium refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Uranium, enriched, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Uranium-radium-vanadium ore mine site development for own account | 212291 Uranium-Radium-Vanadium Ore Mining | 250 employees |
| Uranium-radium-vanadium ores mining and/or beneficiating | 212291 Uranium-Radium-Vanadium Ore Mining | 250 employees |
| Urban bus line services (except mixed mode) | 485113 Bus and Other Motor Vehicle Transit Systems | $32.5 million in average annual receipts |
| Urban commuter rail systems (except mixed mode) | 485112 Commuter Rail Systems | $47 million in average annual receipts |
| Urban planners' offices | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Urban planning commissions, government | 925120 Administration of Urban Planning and Community and Rural Development | — |
| Urban planning services | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Urban transit systems, mixed mode (e.g., bus, commuter rail, subway combinations) | 485111 Mixed Mode Transit Systems | $29 million in average annual receipts |
| Urea manufacturing | 325311 Nitrogenous Fertilizer Manufacturing | 1,050 employees |
| Urea resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Urea-formaldehyde resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Urethane foam insulation application | 238310 Drywall and Insulation Contractors | $19 million in average annual receipts |
| Urethane foam products manufacturing | 326150 Urethane and Other Foam Product (except Polystyrene) Manufacturing | 750 employees |
| Urethane rubber manufacturing | 325212 Synthetic Rubber Manufacturing | 1,000 employees |
| Urethane slabjacking contractors | 238190 Other Foundation, Structure, and Building Exterior Contractors | $19 million in average annual receipts |
| Urethane soil stabilization contractors | 238190 Other Foundation, Structure, and Building Exterior Contractors | $19 million in average annual receipts |
| Urgent medical care centers and clinics (except hospitals), freestanding | 621493 Freestanding Ambulatory Surgical and Emergency Centers | $19 million in average annual receipts |
| Urinals, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Urinals, plastics, manufacturing | 326191 Plastics Plumbing Fixture Manufacturing | 750 employees |
| Urinals, vitreous china, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Urinalysis laboratories | 621511 Medical Laboratories | $41.5 million in average annual receipts |
| Urns (e.g., gypsum, plaster of paris) manufacturing | 327420 Gypsum Product Manufacturing | 1,500 employees |
| Urns, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Urologists' offices (e.g., centers, clinics) | 621111 Offices of Physicians (except Mental Health Specialists) | $16 million in average annual receipts |
| Used aircraft dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Used automotive parts stores | 441310 Automotive Parts and Accessories Stores | $25 million in average annual receipts |
| Used automotive tire dealers | 441320 Tire Dealers | $22.5 million in average annual receipts |
| Used bicycle (except motorized) shops | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Used boat dealers | 441222 Boat Dealers | $40 million in average annual receipts |
| Used car dealers | 441120 Used Car Dealers | $30.5 million in average annual receipts |
| Used car merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Used household and office goods moving | 484210 Used Household and Office Goods Moving | $34 million in average annual receipts |
| Used manufactured (mobile) home dealers | 453930 Manufactured (Mobile) Home Dealers | $16.5 million in average annual receipts |
| Used merchandise dealers (except motor vehicles and parts) | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Used merchandise stores | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Used motorcycle dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Used parts, motor vehicle, merchant wholesalers | 423140 Motor Vehicle Parts (Used) Merchant Wholesalers | 125 employees |
| Used rare collectors' items (e.g., autograph, coin, card, stamps) shops | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Used recreational vehicle (RV) dealers | 441210 Recreational Vehicle Dealers | $40 million in average annual receipts |
| Used tire dealers | 441320 Tire Dealers | $22.5 million in average annual receipts |
| Used tires, motor vehicle, merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Used utility trailer dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Utilities management consulting services | 541618 Other Management Consulting Services | $19 million in average annual receipts |
| Utility buildings, prefabricated metal, manufacturing | 332311 Prefabricated Metal Building and Component Manufacturing | 750 employees |
| Utility containers (e.g., baskets, bins, boxes, buckets, dishpans, pails), plastics (except foam), manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Utility line (i.e., communication, electric power), construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Utility line (i.e., sewer, water), construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Utility software, computer, packaged | 511210 Software Publishers | $41.5 million in average annual receipts |
| Utility trailer dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Utility trailer merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Utility trailer rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Utility trailers manufacturing | 336214 Travel Trailer and Camper Manufacturing | 1,000 employees |
Business activities are the U.S. Census Bureau's illustrative examples for each NAICS code, size standards the SBA's. An activity Census lists under a retired code and a code in use names only the code in use. Search NAICS codes
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