NAICS Codes by Business Activity: T (Tin to Tyuyamunite)
Activities 643–1,284 of 1,284
| Business activity | NAICS code | Size standard |
|---|---|---|
| Tin plate cans, light gauge metal, manufacturing | 332431 Metal Can Manufacturing | 1,500 employees |
| Tin plate merchant wholesalers | 423510 Metal Service Centers and Other Metal Merchant Wholesalers | 200 employees |
| Tin recovering from scrap and/or alloying purchased metals | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Tin refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Tin rolling, drawing, or extruding purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Tin salts manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Tin-free steel made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tincture of iodine preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Tinfoil not made in rolling mills | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Tinners' snips manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Tinplate made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tinsel manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Tint and dye preparations, household-type (except hair), manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Tints, dyes, and rinses, hair, manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Tipple operation, bituminous coal mining and/or beneficiating | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Tipple, mining, construction | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Tips, shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Tire and tube repair materials merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Tire chains made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Tire cord and fabric, all materials, manufacturing | 314994 Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 1,000 employees |
| Tire covers made from purchased fabric | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Tire dealers, automotive | 441320 Tire Dealers | $22.5 million in average annual receipts |
| Tire inflators, aerosol, manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Tire making machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Tire mounting machines, motor vehicle, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Tire recapping machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Tire recapping machinery merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Tire repair materials manufacturing | 326211 Tire Manufacturing (except Retreading) | 1,500 employees |
| Tire repair shops (except retreading), automotive | 811198 All Other Automotive Repair and Maintenance | $10 million in average annual receipts |
| Tire retreading, recapping or rebuilding | 326212 Tire Retreading | 500 employees |
| Tire shredding machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Tire tubes, motor vehicle, merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Tires (e.g., pneumatic, semi-pneumatic, solid rubber) manufacturing | 326211 Tire Manufacturing (except Retreading) | 1,500 employees |
| Tires, new, motor vehicle, merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Tires, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Tires, scrap, merchant wholesalers | 423930 Recyclable Material Merchant Wholesalers | 125 employees |
| Tires, used (except scrap), merchant wholesalers | 423130 Tire and Tube Merchant Wholesalers | 200 employees |
| Tissue culture farming | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Tissue paper stock manufacturing | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Tissue paper, toilet and facial, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Titania porcelain insulators manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Titaniferous-magnetite ores, valued chiefly for titanium content, mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Titanium and titanium alloy bar, billet, rod, sheet, strip, and tubing made from purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Titanium based pigments manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Titanium castings (except die-castings), unfinished, manufacturing | 331529 Other Nonferrous Metal Foundries (except Die-Casting) | 500 employees |
| Titanium concentrates beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Titanium die-castings, unfinished, manufacturing | 331523 Nonferrous Metal Die-Casting Foundries | 700 employees |
| Titanium dioxide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Titanium forgings made from purchased metals, unfinished | 332112 Nonferrous Forging | 950 employees |
| Titanium ores mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Titanium refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Titanium rolling, drawing, or extruding purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Title abstract companies, real estate | 541191 Title Abstract and Settlement Offices | $19.5 million in average annual receipts |
| Title companies, real estate | 541191 Title Abstract and Settlement Offices | $19.5 million in average annual receipts |
| Title insurance carriers, real estate, direct | 524127 Direct Title Insurance Carriers | $47 million in average annual receipts |
| Title search companies, real estate | 541191 Title Abstract and Settlement Offices | $19.5 million in average annual receipts |
| Title search services (except real estate) | 519190 All Other Information Services | $30 million in average annual receipts |
| Titling of motion picture film or video | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Titrimeters manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| TNT (trinitrotoluene) manufacturing | 325920 Explosives Manufacturing | 750 employees |
| Toaster ovens, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Toasters, electric, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Toasters, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Tobacco (except leaf) merchant wholesalers | 424940 Tobacco Product and Electronic Cigarette Merchant Wholesalers | 250 employees |
| Tobacco farming, field and seed production | 111910 Tobacco Farming | $2.5 million in average annual receipts |
| Tobacco grading | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Tobacco harvester machines manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Tobacco hogshead stock, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Tobacco hogsheads, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Tobacco leaf processing and aging | 312230 Tobacco Manufacturing | 1,500 employees |
| Tobacco pipes manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Tobacco pouches (except metal) manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Tobacco pouches, precious metal, manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Tobacco processing machinery (except farm-type) manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Tobacco products (e.g., chewing, smoking, snuff) manufacturing | 312230 Tobacco Manufacturing | 1,500 employees |
| Tobacco products merchant wholesalers | 424940 Tobacco Product and Electronic Cigarette Merchant Wholesalers | 250 employees |
| Tobacco products, imitation (except cigarettes) manufacturing | 312229 Other Tobacco Product Manufacturing | — |
| Tobacco products, imitation, manufacturing | 312230 Tobacco Manufacturing | 1,500 employees |
| Tobacco sheeting services | 312230 Tobacco Manufacturing | 1,500 employees |
| Tobacco stemming and redrying | 312230 Tobacco Manufacturing | 1,500 employees |
| Tobacco stores | 453991 Tobacco Stores | $8 million in average annual receipts |
| Tobacco, leaf, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Toboggans manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Toe caps, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Toffee manufacturing | 311340 Nonchocolate Confectionery Manufacturing | 1,000 employees |
| Tofu (i.e., bean curd) (except frozen desserts) manufacturing | 311991 Perishable Prepared Food Manufacturing | 700 employees |
| Tofu frozen desserts manufacturing | 311520 Ice Cream and Frozen Dessert Manufacturing | 1,000 employees |
| Toggle bolts, metal, manufacturing | 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 600 employees |
| Toilet bowl cleaners manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Toilet fixtures, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Toilet fixtures, plastics, manufacturing | 326191 Plastics Plumbing Fixture Manufacturing | 750 employees |
| Toilet fixtures, vitreous china, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Toilet kits and cases (except metal) manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Toilet kits and cases, precious metal, manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Toilet paper made from purchased paper | 322291 Sanitary Paper Product Manufacturing | 1,500 employees |
| Toilet paper made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Toilet preparations (e.g., cosmetics, deodorants, perfumes) manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Toilet preparations merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Toilet renting and/or servicing, portable | 562991 Septic Tank and Related Services | $9 million in average annual receipts |
| Toilet seats, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Toilet soaps manufacturing | 325611 Soap and Other Detergent Manufacturing | 1,100 employees |
| Toilet soaps merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Toilet tissue merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Toilet ware, precious plated metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Toilet water manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Toiletries merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Toll switching equipment, telephone, manufacturing | 334210 Telephone Apparatus Manufacturing | 1,250 employees |
| Toluene made from refined petroleum or liquid hydrocarbons | 325110 Petrochemical Manufacturing | 1,300 employees |
| Toluene made in petroleum refineries | 324110 Petroleum Refineries | 1,500 employees |
| Toluidines manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Tomato farming (except under cover), field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Tomato farming, grown under cover | 111419 Other Food Crops Grown Under Cover | $4.5 million in average annual receipts |
| Tomato harvesting machines manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Toner cartridges manufacturing | 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 1,500 employees |
| Toner cartridges merchant wholesalers | 424120 Stationery and Office Supplies Merchant Wholesalers | 150 employees |
| Toner cartridges rebuilding | 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 1,500 employees |
| Toners (except electrostatic, photographic) manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Toners, electrostatic and photographic, manufacturing | 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 1,500 employees |
| Tongue depressors manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Tongues, boot and shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Tonometers, medical, manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Tool boxes, light gauge metal, manufacturing | 332439 Other Metal Container Manufacturing | 600 employees |
| Tool chests, wood, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Tool handles, wood, turned and shaped, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Tool industrial design services | 541420 Industrial Design Services | $17 million in average annual receipts |
| Tool stands, factory, manufacturing | 337127 Institutional Furniture Manufacturing | 500 employees |
| Tool steel made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tool stores, power and hand (except outdoor) | 444130 Hardware Stores | $14.5 million in average annual receipts |
| Toolholders (i.e., a machine tool accessory) manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Tools and accessories for machine tools manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Tools and equipment, motor vehicle, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Tools, dentists', manufacturing | 339114 Dental Equipment and Supplies Manufacturing | 750 employees |
| Tools, hand (except motor vehicle, machinists' precision tools), merchant wholesalers | 423710 Hardware Merchant Wholesalers | 150 employees |
| Tools, hand, metal blade (e.g., putty knives, scrapers, screwdrivers) | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Tools, handheld power-driven, manufacturing | 333991 Power-Driven Handtool Manufacturing | 950 employees |
| Tools, handheld, nonpowered (except kitchen-type), manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Tools, machinists' precision, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Tools, woodworking edge (e.g., augers, bits, countersinks), manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Toothbrushes (except electric) manufacturing | 339994 Broom, Brush, and Mop Manufacturing | 750 employees |
| Toothbrushes (except electric) merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Toothbrushes, electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Toothbrushes, electric, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Toothpastes, gels, and tooth powders manufacturing | 325611 Soap and Other Detergent Manufacturing | 1,100 employees |
| Toothpicks, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Top lifts, boot and shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Top-soil hauling, local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Topaz, non-gem, mining and/or beneficiating | 212325 Clay and Ceramic and Refractory Minerals Mining | 500 employees |
| Topcoats cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Topcoats, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Topcoats, 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 |
| Topographic mapping services | 541370 Surveying and Mapping (except Geophysical) Services | $19 million in average annual receipts |
| Topographic surveying services | 541370 Surveying and Mapping (except Geophysical) Services | $19 million in average annual receipts |
| Toppings (except fountain) merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Tops, convertible automotive, manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Torpedo tubes manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Torpedoes manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Torque converters, automotive, truck, and bus, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Torque motors, electric, manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Torsion bar, heavy gauge metal, manufacturing | 332613 Spring Manufacturing | 600 employees |
| Torsion testing equipment manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Tortilla chips manufacturing | 311919 Other Snack Food Manufacturing | 1,250 employees |
| Tortillas manufacturing | 311830 Tortilla Manufacturing | 1,250 employees |
| Totalizing fluid meters manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Totalizing meters (except aircraft), consumption registering, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Toupees manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Toupees merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Tour bus, scenic and sightseeing, operation | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Tour operators (i.e., arranging and assembling tours) | 561520 Tour Operators | $25 million in average annual receipts |
| Tourism bureaus | 561591 Convention and Visitors Bureaus | $25 million in average annual receipts |
| Tourism development offices, government | 926110 Administration of General Economic Programs | — |
| Tourist guide services | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Tourist homes | 721199 All Other Traveler Accommodation | $9 million in average annual receipts |
| Tourist information bureaus | 561591 Convention and Visitors Bureaus | $25 million in average annual receipts |
| Tourist lodges | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Tow targets, aircraft, manufacturing | 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing | 1,250 employees |
| Tow truck services | 488410 Motor Vehicle Towing | $9 million in average annual receipts |
| Tow trucks (including tilt and load) assembling on purchased chassis | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Towboat building and repairing | 336611 Ship Building and Repairing | 1,300 employees |
| Towboat rental or leasing | 532411 Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing | $45.5 million in average annual receipts |
| Towel (except shop, wiping) supply services | 812331 Linen Supply | $40 million in average annual receipts |
| Towel bar holders, vitreous china and earthenware, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Towel supply services, shop or wiping | 812332 Industrial Launderers | $47 million in average annual receipts |
| Towelettes, premoistened, manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Towels and washcloths made in broadwoven fabric mills | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Towels and washcloths made in warp knitting mills | 313249 Other Knit Fabric and Lace Mills | — |
| Towels and washcloths made in warp or weft knitting mills | 313240 Knit Fabric Mills | 500 employees |
| Towels and washcloths made in weft knitting mills | 313241 Weft Knit Fabric Mills | — |
| Towels and washcloths merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Towels or washcloths made from purchased fabrics | 314120 Curtain and Linen Mills | 750 employees |
| Towels, industrial, merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Towels, paper, made from purchased paper | 322291 Sanitary Paper Product Manufacturing | 1,500 employees |
| Towels, paper, made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Towels, surgical, merchant wholesalers | 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 200 employees |
| Tower, power distribution and communication, construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Towing bars and systems manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Towing service, inland waters (except on Great Lakes system) | 483211 Inland Water Freight Transportation | 1,050 employees |
| Towing services, motor vehicle | 488410 Motor Vehicle Towing | $9 million in average annual receipts |
| Town house (i.e., single-family type) construction by general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Town house construction for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Town house rental or leasing | 531110 Lessors of Residential Buildings and Dwellings | $34 million in average annual receipts |
| Town planners' offices | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Town planning services | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Toxic material abatement services | 562910 Remediation Services | $25 million in average annual receipts |
| Toxic material removal contractors | 562910 Remediation Services | $25 million in average annual receipts |
| Toxicology health laboratories | 621511 Medical Laboratories | $41.5 million in average annual receipts |
| Toxoids (e.g., diphtheria, tetanus) manufacturing | 325414 Biological Product (except Diagnostic) Manufacturing | 1,250 employees |
| Toy furniture and household-type equipment manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Toy stores | 451120 Hobby, Toy, and Game Stores | $31 million in average annual receipts |
| Toy stores, electronic | 451120 Hobby, Toy, and Game Stores | $31 million in average annual receipts |
| Toys (except dolls, stuffed toys) manufacturing | 339932 Game, Toy, and Children's Vehicle Manufacturing | — |
| Toys (including electronic) merchant wholesalers | 423920 Toy and Hobby Goods and Supplies Merchant Wholesalers | 175 employees |
| Toys manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Toys, doll, manufacturing | 339931 Doll and Stuffed Toy Manufacturing | — |
| Toys, stuffed, manufacturing | 339931 Doll and Stuffed Toy Manufacturing | — |
| Tracer and tapering machine tool attachments manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Tracer igniters, ammunition (i.e., more than 30 mm., more than 1.18 inch), manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Track and field athletic equipment (except apparel, footwear) manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Track lighting fixtures and equipment, residential, electric, manufacturing | 335121 Residential Electric Lighting Fixture Manufacturing | 750 employees |
| Tracked vehicle freight transportation, local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Tracked vehicle freight transportation, long-distance | 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance | $34 million in average annual receipts |
| Tracked vehicle sightseeing operation | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Traction apparatus manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Tractor, farm or construction equipment repair and maintenance services | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts |
| Tractor, farm, rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Tractor, garden, rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Tractors and attachments, construction-type, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Tractors and attachments, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Tractors and attachments, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Tractors, crawler, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Tractors, farm and garden, merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Tractors, highway, merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Tractors, industrial, manufacturing | 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 900 employees |
| Tractors, industrial, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Tractors, lawn and garden repair and maintenance services without retailing new lawn and garden tractors | 811411 Home and Garden Equipment Repair and Maintenance | $9 million in average annual receipts |
| Tractors, truck for highway use, assembled on chassis of own manufacture | 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
| Trade associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Trade banks (i.e., international trade financing) | 522293 International Trade Financing | $41.5 million in average annual receipts |
| Trade binding services | 323120 Support Activities for Printing | 550 employees |
| Trade commissions, government | 926110 Administration of General Economic Programs | — |
| Trade development program administration | 926110 Administration of General Economic Programs | — |
| Trade fair managers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade fair organizers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade fair promoters | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade financing, international | 522293 International Trade Financing | $41.5 million in average annual receipts |
| Trade journal publishers (except exclusive Internet publishing) | 511120 Periodical Publishers | 1,000 employees |
| Trade journal publishers and printing combined | 511120 Periodical Publishers | 1,000 employees |
| Trade journal publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Trade journals commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Trade journals flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Trade journals lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Trade journals printing (except flexographic, gravure, lithographic, quick, screen) without publishing | 323119 Other Commercial Printing | — |
| Trade journals screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Trade magazine and periodical publishers (except exclusive Internet publishing) | 511120 Periodical Publishers | 1,000 employees |
| Trade magazine and periodical publishers and printing combined | 511120 Periodical Publishers | 1,000 employees |
| Trade magazine and periodical publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Trade magazines and periodicals commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Trade magazines and periodicals flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Trade magazines and periodicals lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Trade magazines and periodicals printing (except flexographic, gravure, lithographic, quick, screen) without publishing | 323119 Other Commercial Printing | — |
| Trade magazines and periodicals screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Trade show exhibit installation and dismantling contractors | 238390 Other Building Finishing Contractors | $19 million in average annual receipts |
| Trade show managers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade show organizers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade show promoters | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Trade union apprenticeship training programs | 611513 Apprenticeship Training | $11.5 million in average annual receipts |
| Trade unions (except apprenticeship programs) | 813930 Labor Unions and Similar Labor Organizations | $16.5 million in average annual receipts |
| Trade unions, local | 813930 Labor Unions and Similar Labor Organizations | $16.5 million in average annual receipts |
| Trademark licensing | 533110 Lessors of Nonfinancial Intangible Assets (except Copyrighted Works) | $47 million in average annual receipts |
| Trading companies, commodity contracts | 523130 Commodity Contracts Dealing | $41.5 million in average annual receipts |
| Trading posts, general merchandise | 452990 All Other General Merchandise Stores | — |
| Trading securities (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Trading stamp promotion and sale to stores | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Trading stamp redemption services | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Traffic advisory and signalling systems manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Traffic courts | 922110 Courts | — |
| Traffic engineering consulting services | 541330 Engineering Services | $25.5 million in average annual receipts |
| Traffic lane painting | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Traffic reporting services | 519110 News Syndicates | $32 million in average annual receipts |
| Traffic signal installation | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Traffic signals manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Trail construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Trail riding camps with accommodation facilities | 721214 Recreational and Vacation Camps (except Campgrounds) | $9 million in average annual receipts |
| Trail riding, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Trailer hitches, motor vehicle, manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Trailer park or court, residential | 531190 Lessors of Other Real Estate Property | $34 million in average annual receipts |
| Trailer parts, new, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Trailer rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Trailers for transporting horses (except fifth-wheel-type) manufacturing | 336214 Travel Trailer and Camper Manufacturing | 1,000 employees |
| Trailers, camping, manufacturing | 336214 Travel Trailer and Camper Manufacturing | 1,000 employees |
| Trailers, fifth-wheel type, for transporting horses, manufacturing | 336212 Truck Trailer Manufacturing | 1,000 employees |
| Trailers, industrial, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Trailers, motor vehicle, merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Training horses (except racehorses) | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Training pants (i.e., underwear) cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Training pants (i.e., underwear), infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Training pants (i.e., underwear), infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Training race dogs | 711219 Other Spectator Sports | $16.5 million in average annual receipts |
| Training racehorses | 711219 Other Spectator Sports | $16.5 million in average annual receipts |
| Trains and equipment, toy, electric or mechanical, manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Trampoline facilities, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Tramway systems (except mixed mode), commuter | 485119 Other Urban Transit Systems | $37.5 million in average annual receipts |
| Tramway, aerial, scenic and sightseeing operation | 487990 Scenic and Sightseeing Transportation, Other | $25 million in average annual receipts |
| Tranquilizer guns, manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Tranquilizer preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Transaxles, automotive, truck, and bus, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Transceivers (i.e., transmitter-receiver units) manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Transcription services | 561410 Document Preparation Services | $19 million in average annual receipts |
| Transcutaneous electrical nerve stimulators (TENS) manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Transducers (except pressure) manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Transducers, pressure, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Transesterification of vegetable oils to produce fuels or fuel additives | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Transfer (trucking) services, general freight, local | 484110 General Freight Trucking, Local | $34 million in average annual receipts |
| Transfer agencies, securities | 523999 Miscellaneous Financial Investment Activities | $47 million in average annual receipts |
| Transformer station and substation, electric power, construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Transformers (except electronic) merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Transformers, electric power, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Transformers, electronic component-types, manufacturing | 334416 Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing | 550 employees |
| Transformers, electronic, merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Transformers, ignition, for use on domestic fuel burners, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Transformers, reactor, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Transformers, separate solid-state arc-welding, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Transistor radio batteries manufacturing | 335912 Primary Battery Manufacturing | 1,000 employees |
| Transistors manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Transistors merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Transit advertising services | 541850 Indoor and Outdoor Display Advertising | $34.5 million in average annual receipts |
| Transit police | 922120 Police Protection | — |
| Transit systems and authorities, nonoperating | 926120 Regulation and Administration of Transportation Programs | — |
| Transit systems, mixed mode (e.g., bus, commuter rail, subway combinations) | 485111 Mixed Mode Transit Systems | $29 million in average annual receipts |
| Transit-mixed concrete manufacturing | 327320 Ready-Mix Concrete Manufacturing | 500 employees |
| Transitional housing agencies | 624229 Other Community Housing Services | $19 million in average annual receipts |
| Transits, surveying, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Translation services, language | 541930 Translation and Interpretation Services | $22.5 million in average annual receipts |
| Transmission and distribution line construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Transmission and distribution voltage regulators manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Transmission belting, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Transmission belts, rubber, manufacturing | 326220 Rubber and Plastics Hoses and Belting Manufacturing | 800 employees |
| Transmission coolers manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Transmission equipment, electrical, merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Transmission fluids, petroleum, made from refined petroleum | 324191 Petroleum Lubricating Oil and Grease Manufacturing | 900 employees |
| Transmission fluids, synthetic, manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Transmission of electric power | 221121 Electric Bulk Power Transmission and Control | 950 employees |
| Transmission of natural gas via pipeline (i.e., processing plants to local distribution systems) | 486210 Pipeline Transportation of Natural Gas | $41.5 million in average annual receipts |
| Transmission pole and line hardware manufacturing | 335932 Noncurrent-Carrying Wiring Device Manufacturing | 1,000 employees |
| Transmission repair shops, automotive | 811113 Automotive Transmission Repair | $8 million in average annual receipts |
| Transmission tower sections, fabricated structural metal, manufacturing | 332312 Fabricated Structural Metal Manufacturing | 500 employees |
| Transmissions and parts, automotive, truck, and bus, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Transmitters merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Transmitters, industrial process control-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Transplanters, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Transplanting services | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Transportation by spacecraft, freight | 481212 Nonscheduled Chartered Freight Air Transportation | 1,500 employees |
| Transportation departments, nonoperating | 926120 Regulation and Administration of Transportation Programs | — |
| Transportation equipment and supplies (except marine pleasure craft, motor vehicles) merchant wholesalers | 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers | 175 employees |
| Transportation equipment seating manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Transportation management consulting services | 541614 Process, Physical Distribution, and Logistics Consulting Services | $20 million in average annual receipts |
| Transportation regulatory agencies | 926120 Regulation and Administration of Transportation Programs | — |
| Transportation safety programs, government | 926120 Regulation and Administration of Transportation Programs | — |
| Transporting freight to or from foreign ports, deep sea | 483111 Deep Sea Freight Transportation | 1,050 employees |
| Transporting passengers to or from foreign ports, deep sea | 483112 Deep Sea Passenger Transportation | 1,500 employees |
| Trap rock crushed and broken stone mining and/or beneficiating | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Trap rock mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Traps, animal and fish, made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Traps, water, manufacturing | 332919 Other Metal Valve and Pipe Fitting Manufacturing | 750 employees |
| Trapshooting equipment and supplies merchant wholesalers | 423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers | 100 employees |
| Trapshooting facilities, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Trash and garbage compactors, commercial-type, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Trash and garbage compactors, household-type, manufacturing | 335220 Major Household Appliance Manufacturing | 1,500 employees |
| Trash bags, plastics film, single wall or multiwall, manufacturing | 326111 Plastics Bag and Pouch Manufacturing | 750 employees |
| Trash collection services | 562111 Solid Waste Collection | $47 million in average annual receipts |
| Trash containers, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Trash disposal combustors or incinerators | 562213 Solid Waste Combustors and Incinerators | $47 million in average annual receipts |
| Trash disposal landfills | 562212 Solid Waste Landfill | $47 million in average annual receipts |
| Trash hauling, local | 562111 Solid Waste Collection | $47 million in average annual receipts |
| Trash hauling, long-distance | 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance | $34 million in average annual receipts |
| Trash racks, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Trauma centers (except hospitals), freestanding | 621493 Freestanding Ambulatory Surgical and Emergency Centers | $19 million in average annual receipts |
| Travel agencies | 561510 Travel Agencies | $25 million in average annual receipts |
| Travel guide book publishers (except exclusive Internet publishing) | 511130 Book Publishers | 1,000 employees |
| Travel guide book publishers and printing combined | 511130 Book Publishers | 1,000 employees |
| Travel guide book publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Travel guide books printing and binding without publishing | 323117 Books Printing | 1,250 employees |
| Travel guide books printing without publishing | 323117 Books Printing | 1,250 employees |
| Travel tour operators | 561520 Tour Operators | $25 million in average annual receipts |
| Travel trailer (e.g., tent trailers) merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Travel trailer campsites | 721211 RV (Recreational Vehicle) Parks and Campgrounds | $10 million in average annual receipts |
| Travel trailer dealers | 441210 Recreational Vehicle Dealers | $40 million in average annual receipts |
| Travel trailers, recreational, manufacturing | 336214 Travel Trailer and Camper Manufacturing | 1,000 employees |
| Travelers' aid centers | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Travelers' check issuance services | 522390 Other Activities Related to Credit Intermediation | $28.5 million in average annual receipts |
| Traveling bags, all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Traveling museum exhibits | 712110 Museums | $34 million in average annual receipts |
| Traveling shows, carnival | 711190 Other Performing Arts Companies | $34 million in average annual receipts |
| Traveling wave tubes manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Travertine crushed and broken stone mining and/or beneficiating | 212312 Crushed and Broken Limestone Mining and Quarrying | 750 employees |
| Travertine mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Tray trucks, restaurant, manufacturing | 337127 Institutional Furniture Manufacturing | 500 employees |
| Trays, carrier, wood, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Trays, food, molded pulp, manufacturing | 322299 All Other Converted Paper Product Manufacturing | 500 employees |
| Trays, photographic printing and processing, manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Trays, wire, made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Trays, wood, wicker, and bagasse, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Tread rubber (i.e., camelback) manufacturing | 326211 Tire Manufacturing (except Retreading) | 1,500 employees |
| Treads, metal stair, manufacturing | 332323 Ornamental and Architectural Metal Work Manufacturing | 500 employees |
| Treasurers' offices, government | 921130 Public Finance Activities | — |
| Treating purchased wood and wood products | 321114 Wood Preservation | 550 employees |
| Treating roofs (by spraying, painting or coating) | 238160 Roofing Contractors | $19 million in average annual receipts |
| Treating wood products with creosote or other preservatives | 321114 Wood Preservation | 550 employees |
| Tree and brush trimming, overhead utility line | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Tree chipping in the field | 113310 Logging | 500 employees |
| Tree crop farming (except forestry), short rotation growing and harvesting cycle | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Tree nut farming | 111335 Tree Nut Farming | $3.8 million in average annual receipts |
| Tree nut oils (e.g., tung, walnut) made from purchased oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Tree nut oils (e.g., tung, walnut) made in crushing mill | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Tree pruning services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Tree removal services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Tree seed extracting | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Tree seed gathering | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Tree seed growing for reforestation | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Tree services (e.g., bracing, planting, pruning, removal, spraying, surgery, trimming) | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Tree shakers (e.g., citrus, nut, soft fruit) manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Tree surgery services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Tree trimming services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Trees and plants, artificial, manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Trees merchant wholesalers | 424930 Flower, Nursery Stock, and Florists' Supplies Merchant Wholesalers | 100 employees |
| Trellises, wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Trenching (except underwater) | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Trenching machines manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Trenching, underwater | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Trestle construction | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Trestle parts, wood, treating | 321114 Wood Preservation | 550 employees |
| Triacetate fibers and yarns manufacturing | 325220 Artificial and Synthetic Fibers and Filaments Manufacturing | 1,050 employees |
| Trial consulting services | 541199 All Other Legal Services | $20.5 million in average annual receipts |
| Tribal chief's or chairman's office, American Indian or Alaska Native | 921150 American Indian and Alaska Native Tribal Governments | — |
| Tribal councils, American Indian or Alaska Native | 921150 American Indian and Alaska Native Tribal Governments | — |
| Tribal courts, American Indian or Alaska Native | 921150 American Indian and Alaska Native Tribal Governments | — |
| Trichloroethylene manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Trichlorophenoxyacetic acid manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Tricresyl phosphate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Tricycles (except metal) manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Tricycles, metal, adult and children's, manufacturing | 336991 Motorcycle, Bicycle, and Parts Manufacturing | 1,050 employees |
| Tridecyl alcohol manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Trim and finish carpentry contractors | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Trim and molding (except motor vehicle), metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Trim, metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Trim, wood and covered wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Trimmers, hedge, electric, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Trimmers, hedge, nonelectric, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Trimmers, string, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Trimmings, fur (except apparel contractors), manufacturing | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Trimmings, fur, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Trimmings, fur, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Trimmings, fur, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Trimmings, shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Trinitrotoluene (TNT) manufacturing | 325920 Explosives Manufacturing | 750 employees |
| Triphenyl phosphate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Tripods, camera and projector, manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Tripoli mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Trocars manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Trolley systems (except mixed mode), commuter | 485119 Other Urban Transit Systems | $37.5 million in average annual receipts |
| Trolley, scenic and sightseeing, operation | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Trombones and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Trona mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Trophies merchant wholesalers | 423940 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers | 125 employees |
| Trophies, nonprecious and precious plated metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Trophies, precious metal, (except precious plated) manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Trophy (including awards and plaques) shops | 453998 All Other Miscellaneous Store Retailers (except Tobacco Stores) | $10 million in average annual receipts |
| Trophy bases, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Tropical fish merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Tropical fish production, farm raising | 112511 Finfish Farming and Fish Hatcheries | $3.8 million in average annual receipts |
| Tropical plant maintenance services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Trouble lights manufacturing | 335129 Other Lighting Equipment Manufacturing | 500 employees |
| Troughs, elevator, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Troughs, industrial, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Trouser pressers, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Trousers cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Trousers made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Trousers, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Trousers, 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 |
| Trout fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Trout production, farm raising | 112511 Finfish Farming and Fish Hatcheries | $3.8 million in average annual receipts |
| Trowels manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Truck (except industrial) rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Truck and bus washes | 811192 Car Washes | $9 million in average annual receipts |
| Truck bodies and cabs manufacturing | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Truck bodies assembling on purchased chassis | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Truck campers (i.e., slide-in campers) manufacturing | 336214 Travel Trailer and Camper Manufacturing | 1,000 employees |
| Truck cap stores | 441310 Automotive Parts and Accessories Stores | $25 million in average annual receipts |
| Truck driving schools | 611519 Other Technical and Trade Schools | $21 million in average annual receipts |
| Truck farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Truck finance leasing | 522220 Sales Financing | $47 million in average annual receipts |
| Truck parts, new, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Truck refrigeration repair and maintenance services | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts |
| Truck repair shops, general | 811111 General Automotive Repair | $9 million in average annual receipts |
| Truck stops | 447190 Other Gasoline Stations | $29.5 million in average annual receipts |
| Truck terminal construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Truck tractor rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Truck tractors for highway use, assembling on chassis of own manufacture | 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
| Truck tractors for highway use, assembling on purchased chassis | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Truck tractors, road, merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Truck trailer body shops | 811121 Automotive Body, Paint, and Interior Repair and Maintenance | $9 million in average annual receipts |
| Truck trailer manufacturing | 336212 Truck Trailer Manufacturing | 1,000 employees |
| Truck trailer merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Truck trailer paint and body repair | 811121 Automotive Body, Paint, and Interior Repair and Maintenance | $9 million in average annual receipts |
| Truck weighing station operation | 488490 Other Support Activities for Road Transportation | $18 million in average annual receipts |
| Truck, industrial, rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Truck-mixed concrete manufacturing | 327320 Ready-Mix Concrete Manufacturing | 500 employees |
| Trucking terminals, independently operated | 488490 Other Support Activities for Road Transportation | $18 million in average annual receipts |
| Trucking used household, office, or institutional furniture and equipment | 484210 Used Household and Office Goods Moving | $34 million in average annual receipts |
| Trucking, general freight, local | 484110 General Freight Trucking, Local | $34 million in average annual receipts |
| Trucking, general freight, long-distance, less-than-truckload (LTL) | 484122 General Freight Trucking, Long-Distance, Less Than Truckload | $43 million in average annual receipts |
| Trucking, general freight, long-distance, truckload (TL) | 484121 General Freight Trucking, Long-Distance, Truckload | $34 million in average annual receipts |
| Trucking, specialized freight (except used goods), local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Trucking, specialized freight (except used goods), long-distance | 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance | $34 million in average annual receipts |
| Trucks, heavy, assembling on chassis of own manufacture | 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
| Trucks, industrial, manufacturing | 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 900 employees |
| Trucks, industrial, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Trucks, light duty, assembling on chassis of own manufacture | 336112 Light Truck and Utility Vehicle Manufacturing | 1,500 employees |
| Trucks, off-highway, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Trucks, road, merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Truffles farming, grown under cover | 111419 Other Food Crops Grown Under Cover | $4.5 million in average annual receipts |
| Trumpets and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Trunks (i.e., luggage), all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Truss plates, metal, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Trusses, glue laminated or pre-engineered wood, manufacturing | 321214 Truss Manufacturing | 500 employees |
| Trusses, wood roof or floor, manufacturing | 321214 Truss Manufacturing | 500 employees |
| Trusses, wood, glue laminated or metal connected, manufacturing | 321214 Truss Manufacturing | 500 employees |
| Trust administration, personal investment | 523991 Trust, Fiduciary, and Custody Activities | $47 million in average annual receipts |
| Trust companies, nondepository | 523991 Trust, Fiduciary, and Custody Activities | $47 million in average annual receipts |
| Trusts, charitable, awarding grants | 813211 Grantmaking Foundations | $40 million in average annual receipts |
| Trusts, educational, awarding grants | 813211 Grantmaking Foundations | $40 million in average annual receipts |
| Trusts, estates, and agency accounts | 525920 Trusts, Estates, and Agency Accounts | $40 million in average annual receipts |
| Trusts, religious, awarding grants | 813211 Grantmaking Foundations | $40 million in average annual receipts |
| Tub and tile cleaning preparations manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Tube (e.g., heavy riveted, lock joint, seamless, welded) made from purchased iron or steel | 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | 1,000 employees |
| Tube and hose fittings, fluid power, manufacturing | 332912 Fluid Power Valve and Hose Fitting Manufacturing | 1,000 employees |
| Tube blooms made by extruding purchased aluminum | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Tube blooms, aluminum, made in integrated secondary smelting and extruding mills | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Tube made by drawing or extruding purchased aluminum | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Tube rolling mill machinery, metalworking, manufacturing | 333519 Rolling Mill and Other Metalworking Machinery Manufacturing | 500 employees |
| Tube rounds, iron or steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tube, aluminum, made in integrated secondary smelting and drawing plants | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Tube, aluminum, made in integrated secondary smelting and extruding mills | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Tube, iron or steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tube, nonrigid plastics, manufacturing | 326121 Unlaminated Plastics Profile Shape Manufacturing | 600 employees |
| Tube, welded, aluminum, made by flat rolling purchased aluminum | 331315 Aluminum Sheet, Plate, and Foil Manufacturing | 1,400 employees |
| Tube, welded, aluminum, made in integrated secondary smelting and flat rolling mills | 331315 Aluminum Sheet, Plate, and Foil Manufacturing | 1,400 employees |
| Tuberculin (i.e., tuberculo-protein derived) manufacturing | 325414 Biological Product (except Diagnostic) Manufacturing | 1,250 employees |
| Tuberculosis and other respiratory illness hospitals | 622310 Specialty (except Psychiatric and Substance Abuse) Hospitals | $47 million in average annual receipts |
| Tubes made from purchased metal pipe | 332996 Fabricated Pipe and Pipe Fitting Manufacturing | 550 employees |
| Tubes, cathode ray, manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Tubes, electron, manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Tubes, electronic (e.g., industrial, receiving, transmitting), merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Tubes, electronic, manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Tubes, klystron, manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Tubes, X-ray, manufacturing | 334517 Irradiation Apparatus Manufacturing | 1,200 employees |
| Tubing, copper and copper alloy, made from purchased copper or in integrated secondary smelting and rolling, drawing or extruding plants | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Tubing, flexible metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Tubing, mechanical and hypodermic sizes, cold-drawn stainless steel, made from purchased steel | 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | 1,000 employees |
| Tubing, metal, merchant wholesalers | 423510 Metal Service Centers and Other Metal Merchant Wholesalers | 200 employees |
| Tubing, nonferrous metals (except aluminum, copper), made from purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Tubing, seamless steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tubing, wrought iron or steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Tubs, laundry and bath, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Tuck pointing contractors | 238140 Masonry Contractors | $19 million in average annual receipts |
| Tufa, calcareous, crushed and broken stone, mining and/or beneficiating | 212312 Crushed and Broken Limestone Mining and Quarrying | 750 employees |
| Tufa, calcareous, mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Tufting machinery for textiles manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Tugboat building | 336611 Ship Building and Repairing | 1,300 employees |
| Tugboat rental or leasing | 532411 Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing | $45.5 million in average annual receipts |
| Tugboat services, harbor operation | 488330 Navigational Services to Shipping | $47 million in average annual receipts |
| Tumblers, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Tumbling (i.e., cleaning and polishing) metal and metal products for the trade | 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring | 500 employees |
| Tuna fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Tune-up shops, automotive | 811118 Other Automotive Mechanical and Electrical Repair and Maintenance | $8 million in average annual receipts |
| Tungstates (e.g., ammonium tungstate, sodium tungstate) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Tungsten bar, rod, sheet, strip, and tubing made by rolling, drawing, or extruding purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Tungsten carbide powder made by metallurgical process | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Tungsten compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Tungsten concentrates beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Tungsten ores mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Tuning and repair of musical instruments | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Tuning forks manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Tunnel construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Tunnel lighting contractors | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Tunnel lining, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Tunneling services for coal mining on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Tunnels, wind, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Turbidity instruments, industrial process-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Turbidometers, laboratory-type, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Turbine flow meters, industrial process-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Turbine generator set units manufacturing | 333611 Turbine and Turbine Generator Set Units Manufacturing | 1,500 employees |
| Turbine meters, consumption registering, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Turbines (except aircraft) manufacturing | 333611 Turbine and Turbine Generator Set Units Manufacturing | 1,500 employees |
| Turbines (except transportation) merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Turbines, transportation, merchant wholesalers | 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers | 175 employees |
| Turf (except artificial) installation services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Turf, artificial, installation | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Turkey and turkey products (except canned and packaged frozen) merchant wholesalers | 424440 Poultry and Poultry Product Merchant Wholesalers | 150 employees |
| Turkey egg production | 112330 Turkey Production | $3.8 million in average annual receipts |
| Turkey feeds, prepared, manufacturing | 311119 Other Animal Food Manufacturing | 650 employees |
| Turkey hatcheries | 112340 Poultry Hatcheries | $4 million in average annual receipts |
| Turkey production | 112330 Turkey Production | $3.8 million in average annual receipts |
| Turkeys, processing, fresh, frozen, canned, or cooked | 311615 Poultry Processing | 1,250 employees |
| Turkeys, slaughtering and dressing | 311615 Poultry Processing | 1,250 employees |
| Turkish bathhouses | 812199 Other Personal Care Services | $9 million in average annual receipts |
| Turkish baths | 812199 Other Personal Care Services | $9 million in average annual receipts |
| Turnbuckles, metal, manufacturing | 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 600 employees |
| Turning machines (i.e., lathes), metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Turnings, furniture, unfinished wood, manufacturing | 321912 Cut Stock, Resawing Lumber, and Planing | 500 employees |
| Turnip farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Turpentine made by distillation of pine gum or pine wood | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Turpentine merchant wholesalers | 424690 Other Chemical and Allied Products Merchant Wholesalers | 175 employees |
| Turquoise mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Turret lathes, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Turrets, gun, manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Turtle fishing | 114119 Other Marine Fishing | $11.5 million in average annual receipts |
| Turtle production, farm raising | 112519 Other Aquaculture | $3.8 million in average annual receipts |
| Tutoring, academic | 611691 Exam Preparation and Tutoring | $12.5 million in average annual receipts |
| Tuxedo rental | 532281 Formal Wear and Costume Rental | $25 million in average annual receipts |
| Tuxedos cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Tuxedos cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Tuxedos, cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| TV (television) sets manufacturing | 334310 Audio and Video Equipment Manufacturing | 750 employees |
| TV (television) stores | 443142 Electronics Stores | $35 million in average annual receipts |
| TV broadcasting and studio equipment rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| TV stands and similar stands for consumer electronics, metal, manufacturing | 337124 Metal Household Furniture Manufacturing | 750 employees |
| TV stands and similar stands for consumer electronics, plastics, manufacturing | 337125 Household Furniture (except Wood and Metal) Manufacturing | 750 employees |
| TV stands and similar stands for consumer electronics, wood, manufacturing | 337122 Nonupholstered Wood Household Furniture Manufacturing | 750 employees |
| Twills weaving | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Twine merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Twines manufacturing | 314994 Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 1,000 employees |
| Twist drills merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Two-way paging communication carriers, except satellite | 517312 Wireless Telecommunications Carriers (except Satellite) | 1,500 employees |
| Typesetting (i.e., computer controlled, hand, machine) | 323120 Support Activities for Printing | 550 employees |
| Typesetting machinery manufacturing | 333244 Printing Machinery and Equipment Manufacturing | 750 employees |
| Typewriter paper merchant wholesalers | 424120 Stationery and Office Supplies Merchant Wholesalers | 150 employees |
| Typewriter repair and maintenance services | 811212 Computer and Office Machine Repair and Maintenance | $30 million in average annual receipts |
| Typewriter ribbons manufacturing | 339940 Office Supplies (except Paper) Manufacturing | 750 employees |
| Typewriters manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Typewriters merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Typing services | 561410 Document Preparation Services | $19 million in average annual receipts |
| Tyuyamunite mining and/or beneficiating | 212291 Uranium-Radium-Vanadium Ore Mining | 250 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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