NAICS Codes by Business Activity: S (S-type to Shoe)
Activities 1–768 of 2,302
| Business activity | NAICS code | Size standard |
|---|---|---|
| S-type rubber manufacturing | 325212 Synthetic Rubber Manufacturing | 1,000 employees |
| Sablefish fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Saccharin manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sachet, scented, manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Sacks, multiwall, made from purchased uncoated paper | 322220 Paper Bag and Coated and Treated Paper Manufacturing | 750 employees |
| Sacks, paper, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Saddle horse rental services, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Saddle soaps manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Saddle trees, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Saddlery leather manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Saddlery merchant wholesalers | 424910 Farm Supplies Merchant Wholesalers | 200 employees |
| Saddlery parts, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Saddlery repair shops without retailing new saddlery | 811430 Footwear and Leather Goods Repair | $9 million in average annual receipts |
| Saddlery stores | 451110 Sporting Goods Stores | $23.5 million in average annual receipts |
| Saddles and parts, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Safe deposit boxes and chests, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Safe doors and linings, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Safes, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Safes, security, merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Safety (i.e., pop-off) valves, industrial-type, manufacturing | 332911 Industrial Valve Manufacturing | 750 employees |
| Safety belts, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Safety consulting services | 541690 Other Scientific and Technical Consulting Services | $19 million in average annual receipts |
| Safety fuses, blasting, manufacturing | 325920 Explosives Manufacturing | 750 employees |
| Safety glass (including motor vehicle) made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Safety net system, erecting and dismantling at construction site | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Safety pins manufacturing | 339993 Fastener, Button, Needle, and Pin Manufacturing | 750 employees |
| Safety razor blades manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Safety razors manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Safflower farming, field and seed production | 111120 Oilseed (except Soybean) Farming | $2.3 million in average annual receipts |
| Safflower oil made from purchased oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Safflower oil made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Sail boat dealers | 441222 Boat Dealers | $40 million in average annual receipts |
| Sailboards manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Sailboat building, not done in shipyards | 336612 Boat Building | 1,000 employees |
| Sailboat rental | 532284 Recreational Goods Rental | $9 million in average annual receipts |
| Sailing clubs with marinas | 713930 Marinas | $11 million in average annual receipts |
| Sailing clubs without marinas | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Sailing ships, commercial, manufacturing | 336611 Ship Building and Repairing | 1,300 employees |
| Sails made from purchased fabrics | 314910 Textile Bag and Canvas Mills | 500 employees |
| Sal soda (i.e., washing soda) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Salad dressing mixes, dry, made in a dehydration plant | 311423 Dried and Dehydrated Food Manufacturing | 750 employees |
| Salad dressing mixes, dry, manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Salad dressings manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Salad dressings merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Salad oils merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Salads, fresh or refrigerated, manufacturing | 311991 Perishable Prepared Food Manufacturing | 700 employees |
| Sales books merchant wholesalers | 424120 Stationery and Office Supplies Merchant Wholesalers | 150 employees |
| Sales books, manifold, printing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Sales financing | 522220 Sales Financing | $47 million in average annual receipts |
| Sales management consulting services | 541613 Marketing Consulting Services | $19 million in average annual receipts |
| Salicylic acid (except medicinal) manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Salicylic acid, medicinal, uncompounded, manufacturing | 325411 Medicinal and Botanical Manufacturing | 1,000 employees |
| Salines (except common salt) mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Salmon fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Salon construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Salsa canning | 311421 Fruit and Vegetable Canning | 1,000 employees |
| Salt (except table) manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Salt substitute manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Salt water disposal systems, oil and gas field, on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Salt, common, mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Salt, rock, mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Salt, table, manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Salt, table, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Salted meats made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Saltines manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Salts, bath, merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Salts, industrial, merchant wholesalers | 424690 Other Chemical and Allied Products Merchant Wholesalers | 175 employees |
| Sample analysis instruments (except medical) manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Sample cases, all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Sample changers, nuclear radiation, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Sample direct distribution services | 541870 Advertising Material Distribution Services | $28.5 million in average annual receipts |
| Samples mounting | 323120 Support Activities for Printing | 550 employees |
| Sampling services, statistical | 541910 Marketing Research and Public Opinion Polling | $22.5 million in average annual receipts |
| Sampling station manufacturing | 332911 Industrial Valve Manufacturing | 750 employees |
| Sand (except industrial) merchant wholesalers | 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers | 150 employees |
| Sand and gravel quarrying (i.e., construction grade) and/or beneficiating | 212321 Construction Sand and Gravel Mining | 500 employees |
| Sand castings, aluminum, unfinished, manufacturing | 331524 Aluminum Foundries (except Die-Casting) | 550 employees |
| Sand castings, copper and copper-base alloy, unfinished, manufacturing | 331525 Copper Foundries (except Die-Casting) | — |
| Sand castings, nonferrous metals (except aluminum), unfinished, manufacturing | 331529 Other Nonferrous Metal Foundries (except Die-Casting) | 500 employees |
| Sand castings, nonferrous metals (except aluminum, copper), unfinished, manufacturing | 331528 Other Nonferrous Foundries (except Die-Casting) | — |
| Sand hauling, local | 484220 Specialized Freight (except Used Goods) Trucking, Local | $34 million in average annual receipts |
| Sand hauling, long-distance | 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance | $34 million in average annual receipts |
| Sand mixers manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Sand, blast, quarrying and/or beneficiating | 212322 Industrial Sand Mining | 750 employees |
| Sand, construction grade, quarrying and/or beneficiating | 212321 Construction Sand and Gravel Mining | 500 employees |
| Sand, industrial (e.g., engine, filtration, glass grinding), quarrying and/or beneficiating | 212322 Industrial Sand Mining | 750 employees |
| Sand, industrial, merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Sandals, children's (except rubber, plastics), manufacturing | 316219 Other Footwear Manufacturing | — |
| Sandals, children's, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Sandals, men's footwear (except rubber, plastics), manufacturing | 316213 Men's Footwear (except Athletic) Manufacturing | — |
| Sandals, men's footwear, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Sandals, plastics or plastics soled fabric upper, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Sandals, rubber or rubber soled fabric upper, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Sandals, women's footwear (except rubber, plastics), manufacturing | 316214 Women's Footwear (except Athletic) Manufacturing | — |
| Sandals, women's footwear, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Sandblasting metals and metal products for the trade | 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring | 500 employees |
| Sandblasting pipelines on lease, oil and gas field on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Sandblasting, building exterior | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Sanders, handheld power-driven, manufacturing | 333991 Power-Driven Handtool Manufacturing | 950 employees |
| Sanding machines, floor, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Sanding machines, woodworking-type, stationary, manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Sandpaper making machines manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Sandpaper manufacturing | 327910 Abrasive Product Manufacturing | 900 employees |
| Sandstone crushed and broken stone mining | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Sandstone mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Sandstone, bituminous, mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Sandwich shops, limited-service | 722513 Limited-Service Restaurants | $13.5 million in average annual receipts |
| Sandwich spreads, meat, made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Sandwich spreads, salad dressing based, manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Sandwich toasters and grills, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Sandwiches merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Sandwiches, fresh (i.e., assembled and packaged for wholesale market), manufacturing | 311991 Perishable Prepared Food Manufacturing | 700 employees |
| Sanitary food container, folding, made from purchased paperboard | 322212 Folding Paperboard Box Manufacturing | 750 employees |
| Sanitary food containers (e.g., disposable plastics, paper, paperboard) merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Sanitary food containers (except folding) made from purchased paper or paperboard | 322219 Other Paperboard Container Manufacturing | 1,000 employees |
| Sanitary landfills | 562212 Solid Waste Landfill | $47 million in average annual receipts |
| Sanitary napkins and tampons made from purchased paper or textile fiber | 322291 Sanitary Paper Product Manufacturing | 1,500 employees |
| Sanitary napkins and tampons made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sanitary paper products (except newsprint, uncoated groundwood) made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sanitary paper products merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Sanitary paper stock manufacturing | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sanitary products made from purchased sanitary paper stock | 322291 Sanitary Paper Product Manufacturing | 1,500 employees |
| Sanitary products made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sanitary sewer construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sanitary ware (e.g., bathtubs, lavatories, sinks), metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Sanitary ware installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Sanitary ware, china or enameled iron, merchant wholesalers | 423720 Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers | 200 employees |
| Sanitation consulting services | 541620 Environmental Consulting Services | $19 million in average annual receipts |
| Sanitation districts, nonoperating | 926130 Regulation and Administration of Communications, Electric, Gas, and Other Utilities | — |
| Sanitation engineering agencies, government | 924110 Administration of Air and Water Resource and Solid Waste Management Programs | — |
| Sapphire mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Saran (i.e., polyvinylidene chloride) fibers and filaments manufacturing | 325220 Artificial and Synthetic Fibers and Filaments Manufacturing | 1,050 employees |
| Sash balance springs, light gauge, made from purchased wire or strip | 332613 Spring Manufacturing | 600 employees |
| Sash, door and window, metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Sash, door and window, wood and covered wood, manufacturing | 321911 Wood Window and Door Manufacturing | 1,000 employees |
| Satchels, all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Satellite antennas manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Satellite communications equipment manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Satellite dish, household-type, installation | 238290 Other Building Equipment Contractors | $22 million in average annual receipts |
| Satellite master antenna television service (SMATV) | 517311 Wired Telecommunications Carriers | 1,500 employees |
| Satellite radio networks | 515111 Radio Networks | $41.5 million in average annual receipts |
| Satellite receiving station construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Satellite telecommunication carriers | 517410 Satellite Telecommunications | $44 million in average annual receipts |
| Satellite telecommunication resellers | 517410 Satellite Telecommunications | $44 million in average annual receipts |
| Satellite telemetry operations on a contract or fee basis | 517919 All Other Telecommunications | $35 million in average annual receipts |
| Satellite television distribution systems | 517311 Wired Telecommunications Carriers | 1,500 employees |
| Satellite television networks | 515210 Cable and Other Subscription Programming | $41.5 million in average annual receipts |
| Satellite tracking stations | 517919 All Other Telecommunications | $35 million in average annual receipts |
| Satin white pigments manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Saturable transformers manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Saturated felts made from purchased paper | 324122 Asphalt Shingle and Coating Materials Manufacturing | 1,100 employees |
| Saturated felts made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sauce mixes, dry, made in dehydration plants | 311423 Dried and Dehydrated Food Manufacturing | 750 employees |
| Sauce mixes, dry, manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Sauces (except tomato based) manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Sauces for meat (except tomato based) manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Sauces for seafood (except tomato based) manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Sauces for vegetable (except tomato based) manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Sauces, tomato-based, canning | 311421 Fruit and Vegetable Canning | 1,000 employees |
| Sauerkraut manufacturing | 311421 Fruit and Vegetable Canning | 1,000 employees |
| Sauna heaters, electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Sauna rooms, prefabricated, wood, manufacturing | 321992 Prefabricated Wood Building Manufacturing | 500 employees |
| Saunas | 812199 Other Personal Care Services | $9 million in average annual receipts |
| Sausage and similar cased products made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Sausage casings merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Sausage casings, collagen, made from purchased hides | 311612 Meat Processed from Carcasses | 1,000 employees |
| Sausage casings, natural, produced in slaughtering plant | 311611 Animal (except Poultry) Slaughtering | 1,150 employees |
| Sausage casings, plastics, manufacturing | 326121 Unlaminated Plastics Profile Shape Manufacturing | 600 employees |
| Savings and loan associations (S&L) | 522120 Savings Institutions | $750 million in assets |
| Savings bank life insurance carriers, direct | 524113 Direct Life Insurance Carriers | $47 million in average annual receipts |
| Savings banks | 522120 Savings Institutions | $750 million in assets |
| Savings institutions | 522120 Savings Institutions | $750 million in assets |
| Saw blades, all types, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Saw repair and maintenance (except sawmills) without retailing new saws | 811411 Home and Garden Equipment Repair and Maintenance | $9 million in average annual receipts |
| Sawdust and shavings (i.e., sawmill byproducts) manufacturing | 321113 Sawmills | 550 employees |
| Sawdust merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Sawdust, regrinding | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Sawed lumber made in sawmills | 321113 Sawmills | 550 employees |
| Sawed lumber, resawing purchased lumber | 321912 Cut Stock, Resawing Lumber, and Planing | 500 employees |
| Sawing machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Sawmill equipment manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Sawmill machinery rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Sawmill machinery, equipment, and supplies merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Sawmills | 321113 Sawmills | 550 employees |
| Saws, bench and table, power-driven, woodworking-type, manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Saws, hand, nonpowered, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Saws, handheld power-driven, manufacturing | 333991 Power-Driven Handtool Manufacturing | 950 employees |
| Saws, surgical, manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Saxophones and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Scaffold erecting and dismantling | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Scaffolding merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Scaffolding rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Scaffolds, metal, manufacturing | 332323 Ornamental and Architectural Metal Work Manufacturing | 500 employees |
| Scalers, nuclear radiation, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Scales, including laboratory-type, manufacturing | 333997 Scale and Balance Manufacturing | 500 employees |
| Scallop fishing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Scalp treating services | 812199 Other Personal Care Services | $9 million in average annual receipts |
| Scanning services, optical | 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | $40 million in average annual receipts |
| Scarfing machines, woodworking-type, manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Scarfing units, rolling mill machinery, metalworking, manufacturing | 333519 Rolling Mill and Other Metalworking Machinery Manufacturing | 500 employees |
| Scarifiers, road, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Scarlet 2 R lake manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Scarves cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Scarves cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Scarves made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Scarves, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Scarves, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315993 Men's and Boys' Neckwear Manufacturing | — |
| Scarves, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Scarves, women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315999 Other Apparel Accessories and Other Apparel Manufacturing | — |
| Scattershield, engine, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Scenery designers, independent theatrical | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Scenery, theatrical, rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Scenic and sightseeing excursions, aerial | 487990 Scenic and Sightseeing Transportation, Other | $25 million in average annual receipts |
| Scenic and sightseeing excursions, land | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Scenic and sightseeing excursions, water | 487210 Scenic and Sightseeing Transportation, Water | $14 million in average annual receipts |
| Scheduled air freight carriers | 481112 Scheduled Freight Air Transportation | 1,500 employees |
| Scheduled air freight transportation | 481112 Scheduled Freight Air Transportation | 1,500 employees |
| Scheduled air passenger carriers | 481111 Scheduled Passenger Air Transportation | 1,500 employees |
| Scheduled air passenger transportation | 481111 Scheduled Passenger Air Transportation | 1,500 employees |
| Scheelite mining and/or beneficiating | 212299 All Other Metal Ore Mining | 750 employees |
| Schiffli machine embroideries manufacturing | 313220 Narrow Fabric Mills and Schiffli Machine Embroidery | 550 employees |
| Schiffli machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Schist, mica, crushed and broken stone, mining and/or beneficiating | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Schist, mica, mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Scholarly journal publishers (except exclusive Internet publishing) | 511120 Periodical Publishers | 1,000 employees |
| Scholarly journal publishers and printing combined | 511120 Periodical Publishers | 1,000 employees |
| Scholarly journal publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Scholarly journals commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Scholarly journals flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Scholarly journals lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Scholarly journals printing (except flexographic, gravure, lithographic, quick, screen) without publishing | 323119 Other Commercial Printing | — |
| Scholarly journals screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Scholarship trusts (i.e., grantmaking, charitable trust foundations) | 813211 Grantmaking Foundations | $40 million in average annual receipts |
| Scholastic magazine and periodical publishers (except exclusive Internet publishing) | 511120 Periodical Publishers | 1,000 employees |
| Scholastic magazine and periodical publishers and printing combined | 511120 Periodical Publishers | 1,000 employees |
| Scholastic magazine and periodical publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Scholastic magazines and periodicals commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Scholastic magazines and periodicals flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Scholastic magazines and periodicals lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Scholastic magazines and periodicals printing (except flexographic, gravure, lithographic, quick, screen) without publishing | 323119 Other Commercial Printing | — |
| Scholastic magazines and periodicals screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| School boards, elementary and secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| School book publishers (except exclusive Internet publishing) | 511130 Book Publishers | 1,000 employees |
| School book publishers and printing combined | 511130 Book Publishers | 1,000 employees |
| School book publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| School books printing and binding without publishing | 323117 Books Printing | 1,250 employees |
| School books printing without publishing | 323117 Books Printing | 1,250 employees |
| School building construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| School bus attendant services | 611710 Educational Support Services | $24 million in average annual receipts |
| School bus merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| School bus rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| School bus services | 485410 School and Employee Bus Transportation | $30 million in average annual receipts |
| School buses assembling on purchased chassis | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| School districts, elementary or secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| School equipment and supplies (except books, furniture) merchant wholesalers | 423490 Other Professional Equipment and Supplies Merchant Wholesalers | 150 employees |
| School furniture manufacturing | 337127 Institutional Furniture Manufacturing | 500 employees |
| School furniture merchant wholesalers | 423210 Furniture Merchant Wholesalers | 100 employees |
| School photography (i.e., portrait photography) services | 541921 Photography Studios, Portrait | $16 million in average annual receipts |
| School supply stores | 453210 Office Supplies and Stationery Stores | $35 million in average annual receipts |
| School textbook publishers (except exclusive Internet publishing) | 511130 Book Publishers | 1,000 employees |
| School textbook publishers and printing combined | 511130 Book Publishers | 1,000 employees |
| School textbook publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| School textbooks binding without printing | 323120 Support Activities for Printing | 550 employees |
| School uniform stores | 448190 Other Clothing Stores | $27.5 million in average annual receipts |
| Schools for the handicapped, elementary or secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Schools for the intellectually and developmentally disabled (except preschool, job training, vocational rehabilitation) | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Schools for the physically disabled, elementary or secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Schools, aviation | 611512 Flight Training | $34 million in average annual receipts |
| Schools, barber | 611511 Cosmetology and Barber Schools | $13 million in average annual receipts |
| Schools, beauty | 611511 Cosmetology and Barber Schools | $13 million in average annual receipts |
| Schools, business, not offering academic degrees | 611410 Business and Secretarial Schools | $20.5 million in average annual receipts |
| Schools, correspondence, college level | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Schools, cosmetology | 611511 Cosmetology and Barber Schools | $13 million in average annual receipts |
| Schools, drama (except academic) | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Schools, elementary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Schools, junior college | 611210 Junior Colleges | $32.5 million in average annual receipts |
| Schools, junior college vocational | 611210 Junior Colleges | $32.5 million in average annual receipts |
| Schools, language | 611630 Language Schools | $20.5 million in average annual receipts |
| Schools, medical | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Schools, music (except academic) | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Schools, professional (colleges or universities) | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Schools, secondary | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Schools, sports instruction | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Science and technology museums | 712110 Museums | $34 million in average annual receipts |
| Science kits (e.g., chemistry sets, microscopes, natural science sets) manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Scientific apparatus glassware made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Scientific associations | 813920 Professional Organizations | $23.5 million in average annual receipts |
| Scientific glassware made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Scientific glassware, pressed or blown, made in glass making plants | 327212 Other Pressed and Blown Glass and Glassware Manufacturing | 1,250 employees |
| Scientific instruments merchant wholesalers | 423490 Other Professional Equipment and Supplies Merchant Wholesalers | 150 employees |
| Scientific journal and periodical publishers (except exclusive Internet publishing) | 511120 Periodical Publishers | 1,000 employees |
| Scientific journal and periodical publishers and printing combined | 511120 Periodical Publishers | 1,000 employees |
| Scientific journal and periodical publishers, exclusively on Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Scientific laboratory equipment merchant wholesalers | 423490 Other Professional Equipment and Supplies Merchant Wholesalers | 150 employees |
| Scintillation detectors manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Scissors, electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Scissors, nonelectric, manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Scoops, metal (except kitchen-type), manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Scoops, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Scooters, children's, manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Scoreboards manufacturing | 339950 Sign Manufacturing | 500 employees |
| Scoria mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Scouring and combing textile fibers | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Scouring cleansers (e.g., pastes, powders) manufacturing | 325611 Soap and Other Detergent Manufacturing | 1,100 employees |
| Scouring pads, soap impregnated, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Scouting organizations | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Scrap materials (e.g., automotive, industrial) merchant wholesalers | 423930 Recyclable Material Merchant Wholesalers | 125 employees |
| Scrapbooks and refills manufacturing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Scrapbooks merchant wholesalers | 424120 Stationery and Office Supplies Merchant Wholesalers | 150 employees |
| Scraper loaders, underground mining-type, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Scrapers, construction-type, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Screen doors, metal frame, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Screen for printing, preparation services | 323120 Support Activities for Printing | 550 employees |
| Screen printing (except books, manifold business forms, grey goods) | 323113 Commercial Screen Printing | 500 employees |
| Screen printing apparel and textile products (e.g. caps, napkins, placemats, T-shirts, towels) (except grey goods) | 323113 Commercial Screen Printing | 500 employees |
| Screen printing broadwoven fabric grey goods | 313311 Broadwoven Fabric Finishing Mills | — |
| Screen printing fabric grey goods and textile products (except apparel) | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Screen process inks manufacturing | 325910 Printing Ink Manufacturing | 750 employees |
| Screening and sifting machinery for general industrial use manufacturing | 333999 All Other Miscellaneous General Purpose Machinery Manufacturing | 500 employees |
| Screening machinery, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Screening machinery, stationary, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Screening peat | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Screening plants, anthracite | 212113 Anthracite Mining | 250 employees |
| Screening plants, bituminous coal or lignite | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Screening, window, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Screenplay writers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Screenprinting fabric grey goods (except broadwoven) and textile products (except apparel) | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Screens for liquid crystal display (LCD) manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Screens, door and window, metal frame, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Screens, door and window, wood framed, manufacturing | 321911 Wood Window and Door Manufacturing | 1,000 employees |
| Screens, projection (i.e., motion picture, overhead, slide), manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Screens, window and door, merchant wholesalers | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 150 employees |
| Screw and nut slotting machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Screw conveyors manufacturing | 333922 Conveyor and Conveying Equipment Manufacturing | 500 employees |
| Screw drivers, nonelectric, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Screw eyes, metal, manufacturing | 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 600 employees |
| Screwdowns and boxes machinery, metal, manufacturing | 333519 Rolling Mill and Other Metalworking Machinery Manufacturing | 500 employees |
| Screwdrivers and nut drivers, handheld power-driven, manufacturing | 333991 Power-Driven Handtool Manufacturing | 950 employees |
| Screwdriving machines manufacturing | 333519 Rolling Mill and Other Metalworking Machinery Manufacturing | 500 employees |
| Screwjacks manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Screws, metal, manufacturing | 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 600 employees |
| Script writers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Scrubber, air purification, installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Scuba diving equipment manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Scuba instruction, camps, or schools | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Sculptors, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Sculpture instruction | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Sculptures (e.g., gypsum, plaster of paris) manufacturing | 327420 Gypsum Product Manufacturing | 1,500 employees |
| Sculptures, architectural, clay, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Scythes manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Scythestones mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Sea bass fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Sea herring fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Sea kayaking, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Sea plant agriculture | 112519 Other Aquaculture | $3.8 million in average annual receipts |
| Sea trout fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Sea urchin fishing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Seafood (except canned, packaged frozen) merchant wholesalers | 424460 Fish and Seafood Merchant Wholesalers | 100 employees |
| Seafood and seafood products canning | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Seafood and seafood products curing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Seafood and seafood products manufacturing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Seafood dinners, frozen, manufacturing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Seafood markets | 445220 Fish and Seafood Markets | $8 million in average annual receipts |
| Seafood products, fresh prepared, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Seafood products, frozen, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Seafood, canned, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Seafood, fresh prepared, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Seafood, frozen, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Seafoods, packaged frozen, merchant wholesalers | 424420 Packaged Frozen Food Merchant Wholesalers | 200 employees |
| Seal presses (e.g., notary), hand operated, manufacturing | 339940 Office Supplies (except Paper) Manufacturing | 750 employees |
| Sealants merchant wholesalers | 424690 Other Chemical and Allied Products Merchant Wholesalers | 175 employees |
| Sealed beam automotive light bulbs manufacturing | 335110 Electric Lamp Bulb and Part Manufacturing | 1,250 employees |
| Sealing compounds for pipe threads and joints manufacturing | 325520 Adhesive Manufacturing | 550 employees |
| Seals merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Seals, grease or oil, manufacturing | 339991 Gasket, Packing, and Sealing Device Manufacturing | 600 employees |
| Seam welding equipment manufacturing | 333992 Welding and Soldering Equipment Manufacturing | 1,250 employees |
| Search and detection systems and instruments manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Search portals, Internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Searchlights, electric and nonelectric, manufacturing | 335129 Other Lighting Equipment Manufacturing | 500 employees |
| Seasonal and holiday decoration stores | 453220 Gift, Novelty, and Souvenir Stores | $12 million in average annual receipts |
| Seasonal hotels without casinos | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Seasonal property maintenance services (i.e., snow plowing in winter, landscaping during other seasons) | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Seasoning salt manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Seat belts, motor vehicle and aircraft, manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Seat covers, automotive, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Seat covers, rattan, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Seat cushions, foam plastics (except polystyrene), manufacturing | 326150 Urethane and Other Foam Product (except Polystyrene) Manufacturing | 750 employees |
| Seatbelts, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Seats for public conveyances, manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Seats, railroad, manufacturing | 336360 Motor Vehicle Seating and Interior Trim Manufacturing | 1,500 employees |
| Seats, toilet, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Seawall, wave protection, construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Seaway operation | 488310 Port and Harbor Operations | $47 million in average annual receipts |
| Seaweed farming | 112519 Other Aquaculture | $3.8 million in average annual receipts |
| Seaweed gathering | 114119 Other Marine Fishing | $11.5 million in average annual receipts |
| Seaweed processing (e.g., dulse) | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Sebacic acid esters manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sebacic acid manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Second language instruction | 611630 Language Schools | $20.5 million in average annual receipts |
| Second-hand merchandise stores | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Secondary market financing (i.e., buying, pooling, repackaging loans for sale to others) | 522294 Secondary Market Financing | $41.5 million in average annual receipts |
| Secondary refining of nonferrous metals (except aluminum, copper) | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Secondary schools offering both academic and technical courses | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Secondary smelting of nonferrous metals (except aluminum, copper) | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Secretarial schools | 611410 Business and Secretarial Schools | $20.5 million in average annual receipts |
| Secretarial services | 561410 Document Preparation Services | $19 million in average annual receipts |
| Sections for prefabricated metal buildings manufacturing | 332311 Prefabricated Metal Building and Component Manufacturing | 750 employees |
| Sections, prefabricated wood building, manufacturing | 321992 Prefabricated Wood Building Manufacturing | 500 employees |
| Securities brokerages | 523120 Securities Brokerage | $41.5 million in average annual receipts |
| Securities brokers' offices | 523120 Securities Brokerage | $41.5 million in average annual receipts |
| Securities custodians | 523991 Trust, Fiduciary, and Custody Activities | $47 million in average annual receipts |
| Securities dealers (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities dealing (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities distributing (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities exchanges | 523210 Securities and Commodity Exchanges | $47 million in average annual receipts |
| Securities floor brokers | 523120 Securities Brokerage | $41.5 million in average annual receipts |
| Securities floor traders (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities flotation companies | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities holders' protective services | 523999 Miscellaneous Financial Investment Activities | $47 million in average annual receipts |
| Securities originating (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities regulation commissions | 926150 Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors | — |
| Securities trading (i.e., acting as a principal in dealing securities to investors) | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Securities transfer agencies | 523999 Miscellaneous Financial Investment Activities | $47 million in average annual receipts |
| Securities underwriting | 523110 Investment Banking and Securities Dealing | $41.5 million in average annual receipts |
| Security alarm systems sales combined with installation, repair, or monitoring services | 561621 Security Systems Services (except Locksmiths) | $25 million in average annual receipts |
| Security and fire system, installation only | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Security consulting services | 541690 Other Scientific and Technical Consulting Services | $19 million in average annual receipts |
| Security guard services | 561612 Security Guards and Patrol Services | $29 million in average annual receipts |
| Security guard training | 611519 Other Technical and Trade Schools | $21 million in average annual receipts |
| Security patrol services | 561612 Security Guards and Patrol Services | $29 million in average annual receipts |
| Security safes merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Security system monitoring services | 561621 Security Systems Services (except Locksmiths) | $25 million in average annual receipts |
| Security systems merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Sedative preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Sedge peat mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Sediment control system construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Sedimentary mineral machinery manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Seed bags made from purchased woven or knitted materials | 314910 Textile Bag and Canvas Mills | 500 employees |
| Seed bed preparing | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Seed cleaning | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Seed packets made from purchased paper | 322230 Stationery Product Manufacturing | 750 employees |
| Seed processing, post-harvest for propagation | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Seed testing laboratories or services | 541380 Testing Laboratories and Services | $19 million in average annual receipts |
| Seed treatment preparations manufacturing | 325320 Pesticide and Other Agricultural Chemical Manufacturing | 1,150 employees |
| Seeders, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Seeders, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Seeding crops | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Seeding lawns | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Seeds (e.g., canned, roasted, salted) merchant wholesalers | 424450 Confectionery Merchant Wholesalers | 225 employees |
| Seeds (e.g., field, flower, garden) merchant wholesalers | 424910 Farm Supplies Merchant Wholesalers | 200 employees |
| Seeds, snack (e.g., canned, cooked, roasted, salted) manufacturing | 311911 Roasted Nuts and Peanut Butter Manufacturing | 750 employees |
| Seismic geophysical surveying services | 541360 Geophysical Surveying and Mapping Services | $28.5 million in average annual receipts |
| Seismograph exploration (except surveying) for oil and gas on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Seismographs manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Seismometers manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Seismoscopes manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Selenite mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Selenium bar, rod, sheet, strip, and tubing made from purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Selenium compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Selenium dioxide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Selenium recovering from scrap and/or alloying purchased metals | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Selenium refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Self defense (except martial arts) instruction | 611699 All Other Miscellaneous Schools and Instruction | $16.5 million in average annual receipts |
| Self-help organizations (except for disabled persons, the elderly, persons diagnosed with intellectual and developmental disabilities) | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Self-help organizations for disabled persons, the elderly, and persons diagnosed with intellectual and developmental disabilities | 624120 Services for the Elderly and Persons with Disabilities | $15 million in average annual receipts |
| Self-help organizations, youth | 624110 Child and Youth Services | $15.5 million in average annual receipts |
| Self-insurance funds (except employee benefit funds) | 525190 Other Insurance Funds | $40 million in average annual receipts |
| Self-service carwash | 811192 Car Washes | $9 million in average annual receipts |
| Self-service drycleaners and laundries | 812310 Coin-Operated Laundries and Drycleaners | $13 million in average annual receipts |
| Self-storage unit rental or leasing | 531130 Lessors of Miniwarehouses and Self-Storage Units | $34 million in average annual receipts |
| Self-storage warehousing | 531130 Lessors of Miniwarehouses and Self-Storage Units | $34 million in average annual receipts |
| Selling real estate for others (i.e., agents, brokers) | 531210 Offices of Real Estate Agents and Brokers | $15 million in average annual receipts |
| Semen collection | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Semen, bovine, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Semi-finished metal products merchant wholesalers | 423510 Metal Service Centers and Other Metal Merchant Wholesalers | 200 employees |
| Semi-trailer manufacturing | 336212 Truck Trailer Manufacturing | 1,000 employees |
| Semi-trailer rental or leasing | 532120 Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing | $47 million in average annual receipts |
| Semianthracite surface mining and/or beneficiating | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Semianthracite underground mining or mining and beneficiating | 212112 Bituminous Coal Underground Mining | 1,500 employees |
| Semibituminous coal surface mining and/or beneficiating | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Semibituminous coal underground mining or mining and beneficiating | 212112 Bituminous Coal Underground Mining | 1,500 employees |
| Semiconductor assembly and packaging machinery manufacturing | 333242 Semiconductor Machinery Manufacturing | 1,500 employees |
| Semiconductor battery chargers manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Semiconductor circuit networks (i.e., solid-state integrated circuits) manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Semiconductor devices manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Semiconductor devices merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Semiconductor dice and wafers manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Semiconductor high-voltage power supplies manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Semiconductor making machinery manufacturing | 333242 Semiconductor Machinery Manufacturing | 1,500 employees |
| Semiconductor memory chips manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Semiconductor test equipment manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Semidiesel engines manufacturing | 333618 Other Engine Equipment Manufacturing | 1,500 employees |
| Seminaries, below university grade | 611110 Elementary and Secondary Schools | $20 million in average annual receipts |
| Seminaries, theological, offering baccalaureate or graduate degrees | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Semiprecious stones mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Semiprofessional baseball clubs | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Semiprofessional football clubs | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Semiprofessional sports clubs | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Semisteel foundries | 331511 Iron Foundries | 1,000 employees |
| Semolina flour manufacturing | 311211 Flour Milling | 1,050 employees |
| Senior citizens activity centers | 624120 Services for the Elderly and Persons with Disabilities | $15 million in average annual receipts |
| Senior citizens advocacy organizations | 813311 Human Rights Organizations | $34 million in average annual receipts |
| Senior citizens centers | 624120 Services for the Elderly and Persons with Disabilities | $15 million in average annual receipts |
| Senior citizens transportation services | 485991 Special Needs Transportation | $19 million in average annual receipts |
| Senior citizens' associations, social | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Senior citizens' homes without nursing care | 623312 Assisted Living Facilities for the Elderly | $23.5 million in average annual receipts |
| Senior executive search services | 561312 Executive Search Services | $34 million in average annual receipts |
| Sensitized cloth or paper (e.g., blueprint, photographic) manufacturing | 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing | 1,500 employees |
| Sensitometers, photographic, manufacturing | 333316 Photographic and Photocopying Equipment Manufacturing | 1,000 employees |
| Sentinel, cardiac, manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Septic system contractors | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Septic tank and weeping tile installation | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Septic tank cleaning services | 562991 Septic Tank and Related Services | $9 million in average annual receipts |
| Septic tank pumping (i.e., cleaning) services | 562991 Septic Tank and Related Services | $9 million in average annual receipts |
| Septic tanks (except concrete) merchant wholesalers | 423390 Other Construction Material Merchant Wholesalers | 100 employees |
| Septic tanks, concrete, merchant wholesalers | 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers | 150 employees |
| Septic tanks, heavy gauge metal, manufacturing | 332420 Metal Tank (Heavy Gauge) Manufacturing | 750 employees |
| Septic tanks, plastics or fiberglass, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Sequencing controls for electric heating equipment manufacturing | 334512 Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use | 650 employees |
| Series capacitors (except electronic) manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Serpentine crushed and broken stone mining and/or beneficiating | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Serpentine mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Serums (except diagnostic substances) manufacturing | 325414 Biological Product (except Diagnostic) Manufacturing | 1,250 employees |
| Service apparel, washable, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Service apparel, washable, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Service apparel, washable, 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 |
| Service apparel, washable, 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 |
| Service apparel, washable, women's, cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Service apparel, washable, women's, misses' and girls', cut and sewn from purchased fabric (except apparel contractors) | 315239 Women's and Girls' Cut and Sew Other Outerwear Manufacturing | — |
| Service establishment equipment and supplies merchant wholesalers | 423850 Service Establishment Equipment and Supplies Merchant Wholesalers | 125 employees |
| Service industries associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Service line, gas and oil, construction | 237120 Oil and Gas Pipeline and Related Structures Construction | $45 million in average annual receipts |
| Service machinery and 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 |
| Service station cleaning and degreasing services | 561720 Janitorial Services | $22 million in average annual receipts |
| Service station construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Service stations, gasoline | 447190 Other Gasoline Stations | $29.5 million in average annual receipts |
| Service well drilling on a contract basis | 213111 Drilling Oil and Gas Wells | 1,000 employees |
| Servicing oil and gas wells on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Serving carts, metal household-type, manufacturing | 337124 Metal Household Furniture Manufacturing | 750 employees |
| Serving carts, wood household-type, manufacturing | 337122 Nonupholstered Wood Household Furniture Manufacturing | 750 employees |
| Servomotors manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Sesame farming, field and seed production | 111120 Oilseed (except Soybean) Farming | $2.3 million in average annual receipts |
| Set designers, independent theatrical | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Settlement offices, real estate | 541191 Title Abstract and Settlement Offices | $19.5 million in average annual receipts |
| Setup (i.e., not shipped flat) boxes made from purchased paperboard | 322219 Other Paperboard Container Manufacturing | 1,000 employees |
| Setup boxboard stock manufacturing | 322130 Paperboard Mills | 1,250 employees |
| Sewage collection and disposal line construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sewage disposal plant construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sewage disposal plants | 221320 Sewage Treatment Facilities | $35 million in average annual receipts |
| Sewage treatment equipment manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Sewage treatment plant construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sewage treatment plants or facilities | 221320 Sewage Treatment Facilities | $35 million in average annual receipts |
| Sewer cleaning and rodding services | 562998 All Other Miscellaneous Waste Management Services | $16.5 million in average annual receipts |
| Sewer cleanout services | 562998 All Other Miscellaneous Waste Management Services | $16.5 million in average annual receipts |
| Sewer construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sewer hook-up and connection, building | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Sewer main, pipe and connection, construction | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Sewer pipe and fittings, clay, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Sewer pipe, cast iron, manufacturing | 331511 Iron Foundries | 1,000 employees |
| Sewer pipe, concrete, manufacturing | 327332 Concrete Pipe Manufacturing | 750 employees |
| Sewer systems | 221320 Sewage Treatment Facilities | $35 million in average annual receipts |
| Sewing accessories merchant wholesalers | 424310 Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers | 100 employees |
| Sewing and mending kits assembling | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Sewing cases (except metal) manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Sewing cases, precious metal, manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Sewing fabric owned by others | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sewing fabric owned by others for men's and boys' apparel | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sewing fabric owned by others for women's, girls' and infants' apparel | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Sewing machine cabinets, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Sewing machine stores, household-type | 443141 Household Appliance Stores | $19.5 million in average annual receipts |
| Sewing machine, household-type, repair shops without retailing new sewing machines | 811412 Appliance Repair and Maintenance | $19 million in average annual receipts |
| Sewing machines (including household-type) manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Sewing machines, household-type, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Sewing machines, industrial, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Sewing supply stores | 451130 Sewing, Needlework, and Piece Goods Stores | $30 million in average annual receipts |
| Sewing threads manufacturing | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Sextants (except surveying) manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Sextants, surveying, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Shade pulls, window, manufacturing | 337920 Blind and Shade Manufacturing | 1,000 employees |
| Shades, lamp (except glass, plastics), residential-type, manufacturing | 335121 Residential Electric Lighting Fixture Manufacturing | 750 employees |
| Shades, window (except outdoor canvas awnings), manufacturing | 337920 Blind and Shade Manufacturing | 1,000 employees |
| Shaft sinking for coal mines on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Shaft sinking for metal mines on a contract basis | 213114 Support Activities for Metal Mining | $41 million in average annual receipts |
| Shake and shingle, roof, installation | 238160 Roofing Contractors | $19 million in average annual receipts |
| Shakes (i.e., hand split shingles) manufacturing | 321113 Sawmills | 550 employees |
| Shale (except oil shale) mining and/or beneficiating | 212325 Clay and Ceramic and Refractory Minerals Mining | 500 employees |
| Shale, expanded, manufacturing | 327992 Ground or Treated Mineral and Earth Manufacturing | 600 employees |
| Shale, oil, mining and/or beneficiating | 211120 Crude Petroleum Extraction | 1,250 employees |
| Shallot farming, field and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Shampoos and conditioners, hair, manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Shanks, shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Shapers, woodworking-type, manufacturing | 333243 Sawmill, Woodworking, and Paper Machinery Manufacturing | 550 employees |
| Shark fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Shaving brushes manufacturing | 339994 Broom, Brush, and Mop Manufacturing | 750 employees |
| Shaving machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Shaving preparations (e.g., creams, gels, lotions, powders) manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Shaving preparations merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Shearing machines, metal forming, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Shearling (i.e., prepared sheepskin) manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Shears and nibblers, handheld power-driven, manufacturing | 333991 Power-Driven Handtool Manufacturing | 950 employees |
| Shears, nonelectric, household-type (e.g., kitchen, barber, tailor) manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Shears, nonelectric, tool-type (e.g., garden, pruners, tinsnip), manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Shears, powered, for use on animals, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Sheathing paper (except newsprint, uncoated groundwood) made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Sheathing, asphalt saturated, made from refined petroleum | 324122 Asphalt Shingle and Coating Materials Manufacturing | 1,100 employees |
| Sheathing, wood, installation | 238130 Framing Contractors | $19 million in average annual receipts |
| Sheaves, mechanical power transmission, manufacturing | 333613 Mechanical Power Transmission Equipment Manufacturing | 750 employees |
| Sheds, (e.g., garden, storage, utility) prefabricated metal, manufacturing | 332311 Prefabricated Metal Building and Component Manufacturing | 750 employees |
| Sheds, (e.g., garden, storage, utility) prefabricated wood, manufacturing | 321992 Prefabricated Wood Building Manufacturing | 500 employees |
| Sheep dipping and shearing | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Sheep farming (e.g., meat, milk, wool production) | 112410 Sheep Farming | $3.5 million in average annual receipts |
| Sheep merchant wholesalers | 424520 Livestock Merchant Wholesalers | 125 employees |
| Sheep shears, powered, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Sheet (i.e., board), polystyrene foam insulation, manufacturing | 326140 Polystyrene Foam Product Manufacturing | 1,000 employees |
| Sheet metal duct work installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Sheet metal forming machines manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Sheet metal roofing installation | 238160 Roofing Contractors | $19 million in average annual receipts |
| Sheet metal roofing materials merchant wholesalers | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers | 225 employees |
| Sheet metal work (except stampings) manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Sheet metal workers' apprenticeship training | 611513 Apprenticeship Training | $11.5 million in average annual receipts |
| Sheet music commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Sheet music flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Sheet music lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Sheet music merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Sheet music printing (except flexographic, gravure, lithographic, qiuck, screen) without publishing | 323119 Other Commercial Printing | — |
| Sheet music publishers | 512230 Music Publishers | 900 employees |
| Sheet music publishers and printing combined | 512230 Music Publishers | 900 employees |
| Sheet music screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Sheet music stores | 451140 Musical Instrument and Supplies Stores | $20 million in average annual receipts |
| Sheet pilings, plain, iron or steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Sheet, aluminum, made by flat rolling purchased aluminum | 331315 Aluminum Sheet, Plate, and Foil Manufacturing | 1,400 employees |
| Sheet, aluminum, made in integrated secondary smelting and flat rolling mills | 331315 Aluminum Sheet, Plate, and Foil Manufacturing | 1,400 employees |
| Sheet, 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 |
| Sheet, laminated plastics (except flexible packaging), manufacturing | 326130 Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing | 650 employees |
| Sheet, plastics, unlaminated (except packaging), manufacturing | 326113 Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing | 750 employees |
| Sheeting, rubber, manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Sheets and pillowcases made from purchased fabrics | 314120 Curtain and Linen Mills | 750 employees |
| Sheets and pillowcases made in broadwoven fabric mills | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Sheets, steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Shell crushing and grinding for animal feed | 311119 Other Animal Food Manufacturing | 650 employees |
| Shell crushing for feed | 311119 Other Animal Food Manufacturing | 650 employees |
| Shell loading and assembly plants | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Shell mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Shell novelties | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Shell slugs, steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Shellac manufacturing | 325510 Paint and Coating Manufacturing | 1,000 employees |
| Shellac merchant wholesalers | 424950 Paint, Varnish, and Supplies Merchant Wholesalers | 150 employees |
| Shellfish and shellfish products canning | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Shellfish and shellfish products manufacturing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Shellfish curing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Shellfish fishing (e.g., clam, crab, oyster, shrimp) | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Shellfish hatcheries | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Shellfish products, fresh prepared, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Shellfish products, frozen, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Shellfish, fresh prepared, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Shellfish, frozen, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Shells, artillery, manufacturing | 332993 Ammunition (except Small Arms) Manufacturing | 1,500 employees |
| Shells, small arms (i.e., 30 mm. or less, 1.18 inch or less), manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Sheltered workshops (i.e., work experience centers) | 624310 Vocational Rehabilitation Services | $15 million in average annual receipts |
| Shelters (except for victims of domestic or international disasters or conflicts), emergency | 624221 Temporary Shelters | $13.5 million in average annual receipts |
| Shelters for victims of domestic or international disasters or conflicts, emergency | 624230 Emergency and Other Relief Services | $41.5 million in average annual receipts |
| Shelters, battered women's | 624221 Temporary Shelters | $13.5 million in average annual receipts |
| Shelters, homeless | 624221 Temporary Shelters | $13.5 million in average annual receipts |
| Shelters, runaway youth | 624221 Temporary Shelters | $13.5 million in average annual receipts |
| Shelters, temporary (e.g., battered women's, homeless, runaway youth) | 624221 Temporary Shelters | $13.5 million in average annual receipts |
| Shelving (except wire) manufacturing | 337215 Showcase, Partition, Shelving, and Locker Manufacturing | 500 employees |
| Shelving, commercial, merchant wholesalers | 423440 Other Commercial Equipment Merchant Wholesalers | 100 employees |
| Shelving, metal, constructed on site | 238390 Other Building Finishing Contractors | $19 million in average annual receipts |
| Shelving, wire, made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Shelving, wood, constructed on site | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Sherardizing of metals and metal products for the trade | 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers | 600 employees |
| Sherbets manufacturing | 311520 Ice Cream and Frozen Dessert Manufacturing | 1,000 employees |
| Sheriffs' offices (except court functions only) | 922120 Police Protection | — |
| Sheriffs' offices, court functions only | 922110 Courts | — |
| Shims, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Shingle mills, wood | 321113 Sawmills | 550 employees |
| Shingles (except wood) merchant wholesalers | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers | 225 employees |
| Shingles made from purchased asphaltic materials | 324122 Asphalt Shingle and Coating Materials Manufacturing | 1,100 employees |
| Shingles, wood, merchant wholesalers | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 150 employees |
| Shingles, wood, sawed or hand split, manufacturing | 321113 Sawmills | 550 employees |
| Ship and boat propellers, cast brass, bronze and copper (except die-casting), unfinished, manufacturing | 331529 Other Nonferrous Metal Foundries (except Die-Casting) | 500 employees |
| Ship chandler merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Ship chartering with crew, coastal or Great Lakes freight transportation (including St. Lawrence Seaway) | 483113 Coastal and Great Lakes Freight Transportation | 800 employees |
| Ship chartering with crew, coastal or Great Lakes passenger transportation (including St. Lawrence Seaway) | 483114 Coastal and Great Lakes Passenger Transportation | 550 employees |
| Ship chartering with crew, deep sea freight transportation to or from foreign ports | 483111 Deep Sea Freight Transportation | 1,050 employees |
| Ship chartering with crew, deep sea passenger transportation to or from foreign ports | 483112 Deep Sea Passenger Transportation | 1,500 employees |
| Ship chartering with crew, freight transportation, inland waters (except on Great Lakes system) | 483211 Inland Water Freight Transportation | 1,050 employees |
| Ship chartering with crew, passenger transportation, inland waters (except on Great Lakes system) | 483212 Inland Water Passenger Transportation | 550 employees |
| Ship cranes and derricks manufacturing | 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 1,250 employees |
| Ship crew employment agencies | 561311 Employment Placement Agencies | $34 million in average annual receipts |
| Ship crew registries | 561311 Employment Placement Agencies | $34 million in average annual receipts |
| Ship dismantling (except at floating drydocks and shipyards) merchant wholesalers | 423930 Recyclable Material Merchant Wholesalers | 125 employees |
| Ship dismantling at floating drydock | 488390 Other Support Activities for Water Transportation | $47 million in average annual receipts |
| Ship dismantling at shipyards | 336611 Ship Building and Repairing | 1,300 employees |
| Ship furniture manufacturing | 337127 Institutional Furniture Manufacturing | 500 employees |
| Ship hold cleaning services | 488320 Marine Cargo Handling | $47 million in average annual receipts |
| Ship joinery contractors | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Ship painting contractors | 238320 Painting and Wall Covering Contractors | $19 million in average annual receipts |
| Ship rental or leasing without operators | 532411 Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing | $45.5 million in average annual receipts |
| Ship repair done in a shipyard | 336611 Ship Building and Repairing | 1,300 employees |
| Ship scaling services done at a shipyard | 336611 Ship Building and Repairing | 1,300 employees |
| Ship scaling services not done at a shipyard | 488390 Other Support Activities for Water Transportation | $47 million in average annual receipts |
| Ship sections, prefabricated metal, manufacturing | 332312 Fabricated Structural Metal Manufacturing | 500 employees |
| Ship-to-shore broadcasting communication carriers, except satellite | 517312 Wireless Telecommunications Carriers (except Satellite) | 1,500 employees |
| Shipboard cable made from purchased copper in wire drawing plants | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Shipboard cable made in aluminum wire drawing plants | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Shipping agents (freight forwarding) | 488510 Freight Transportation Arrangement | $20 million in average annual receipts |
| Shipping bags made from purchased woven or knitted materials | 314910 Textile Bag and Canvas Mills | 500 employees |
| Shipping barrels, drums, kegs, and pails, light gauge metal, manufacturing | 332439 Other Metal Container Manufacturing | 600 employees |
| Shipping cases and drums, wood, wirebound, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Shipping cases, wood, nailed or lock corner, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Shipping companies' associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Shipping containers (except disposable plastics, paper) merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Shipping containers made from purchased paperboard | 322211 Corrugated and Solid Fiber Box Manufacturing | 1,250 employees |
| Shipping containers, corrugated, made from purchased paper or paperboard | 322211 Corrugated and Solid Fiber Box Manufacturing | 1,250 employees |
| Shipping crates, wood, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Shipping freight to and from domestic ports (i.e., coastal, deep sea (including Puerto Rico), Great Lakes system (including St. Lawrence Seaway)) | 483113 Coastal and Great Lakes Freight Transportation | 800 employees |
| Shipping freight to or from foreign ports, deep sea | 483111 Deep Sea Freight Transportation | 1,050 employees |
| Shipping freight, inland waters (except on Great Lakes system) | 483211 Inland Water Freight Transportation | 1,050 employees |
| Shipping pads and shaped cushioning, foam plastics (except polystyrene), manufacturing | 326150 Urethane and Other Foam Product (except Polystyrene) Manufacturing | 750 employees |
| Shipping pads and shaped cushioning, polystyrene foam, manufacturing | 326140 Polystyrene Foam Product Manufacturing | 1,000 employees |
| Shipping pails, metal, merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Shipping registers commercial printing (except screen) without publishing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Shipping registers flexographic printing without publishing | 323112 Commercial Flexographic Printing | — |
| Shipping registers lithographic (offset) printing without publishing | 323110 Commercial Lithographic Printing | — |
| Shipping registers screen printing without publishing | 323113 Commercial Screen Printing | 500 employees |
| Shipping supplies, paper and disposable plastics, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Ships (i.e., not suitable or intended for personal use) manufacturing | 336611 Ship Building and Repairing | 1,300 employees |
| Ships merchant wholesalers | 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers | 175 employees |
| Shipyard (i.e., facility capable of building ships) | 336611 Ship Building and Repairing | 1,300 employees |
| Shirts, outerwear (except work shirts), 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 | — |
| Shirts, outerwear 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 | — |
| Shirts, outerwear, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Shirts, outerwear, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Shirts, outerwear, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Shirts, outerwear, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Shirts, outerwear, 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 |
| Shirts, outerwear, unisex (i.e., sized without regard to gender), cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Shirts, outerwear, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Shirts, outerwear, 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 |
| Shirts, outerwear, 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 | — |
| Shirts, underwear, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Shirts, underwear, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Shirts, underwear, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Shirts, underwear, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Shirts, 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 |
| Shirts, underwear, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Shirts, 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 |
| Shirts, 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 | — |
| Shitake mushroom farming | 111411 Mushroom Production | $4.5 million in average annual receipts |
| Shock absorbers, automotive, truck, and bus, manufacturing | 336330 Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing | 1,000 employees |
| Shoe (except bowling, golf, spiked) stores | 448210 Shoe Stores | $30 million in average annual receipts |
| Shoe and boot parts (e.g., heels, soles, soling strips), rubber, manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Shoe boxes, folding, made from purchased paperboard | 322212 Folding Paperboard Box Manufacturing | 750 employees |
| Shoe boxes, setup, made from purchased paperboard | 322219 Other Paperboard Container Manufacturing | 1,000 employees |
| Shoe design services | 541490 Other Specialized Design Services | $13.5 million in average annual receipts |
| Shoe display forms, all materials, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Shoe kits (i.e., cases), all materials, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Shoe making and repairing machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Shoe manufacturing and repairing machinery merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Shoe parts (e.g., heels, soles), plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Shoe polishers, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Shoe polishes and cleaners manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Shoe repair materials merchant wholesalers | 423850 Service Establishment Equipment and Supplies Merchant Wholesalers | 125 employees |
| Shoe repair shops without retailing new shoes | 811430 Footwear and Leather Goods Repair | $9 million in average annual receipts |
| Shoe soles, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Shoe stores, orthopedic | 448210 Shoe Stores | $30 million in average annual receipts |
| Shoe stores, specialty sports footwear (e.g., bowling, golf, spiked) | 451110 Sporting Goods Stores | $23.5 million in average annual receipts |
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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