NAICS Codes by Business Activity: S (Shoe to Sports)
Activities 769–1,536 of 2,302
| Business activity | NAICS code | Size standard |
|---|---|---|
| Shoe stretchers manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Shoe trees manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Shoes merchant wholesalers | 424340 Footwear Merchant Wholesalers | 200 employees |
| Shoes, athletic (except rubber or plastics soled with fabric upper), manufacturing | 316219 Other Footwear Manufacturing | — |
| Shoes, athletic, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, ballet, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, children's and infant's (except house slippers, orthopedic extension, plastics, rubber), manufacturing | 316219 Other Footwear Manufacturing | — |
| Shoes, children's and infant's (except orthopedic extension), manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, cleated or spiked, all materials, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, men's (except house slippers, athletic, rubber, orthopedic extension), manufacturing | 316213 Men's Footwear (except Athletic) Manufacturing | — |
| Shoes, men's (except orthopedic extension), manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, orthopedic extension, manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Shoes, plastics or plastics soled fabric upper (except cleated athletic), manufacturing | 316211 Rubber and Plastics Footwear Manufacturing | — |
| Shoes, plastics or plastics soled fabric upper, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, rubber or rubber soled fabric upper (except cleated athletic), manufacturing | 316211 Rubber and Plastics Footwear Manufacturing | — |
| Shoes, rubber or rubber soled fabric upper, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, theatrical, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, women's (except house slippers, athletic, orthopedic extension, plastic, rubber), manufacturing | 316214 Women's Footwear (except Athletic) Manufacturing | — |
| Shoes, women's (except orthopedic extension), manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoes, wooden, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shoeshine parlors | 812990 All Other Personal Services | $15 million in average annual receipts |
| Shoeshine services | 812990 All Other Personal Services | $15 million in average annual receipts |
| Shook, box, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Shooting clubs, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Shooting galleries | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Shooting ranges | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Shop equipment, service station, merchant wholesalers | 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers | 200 employees |
| Shopping bags, paper and plastics, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Shopping center (i.e., not operating contained businesses) rental or leasing | 531120 Lessors of Nonresidential Buildings (except Miniwarehouses) | $34 million in average annual receipts |
| Shopping center construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Shopping mall construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Shopping services, personal | 812990 All Other Personal Services | $15 million in average annual receipts |
| Shoring, construction | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Short rotation woody tree growing (i.e., growing and harvesting cycle ten years or less) | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Short-line railroads | 482112 Short Line Railroads | 1,500 employees |
| Short-term inventory credit lending | 522298 All Other Nondepository Credit Intermediation | $41.5 million in average annual receipts |
| Shortening (except soybean) made in crushing mills | 311223 Other Oilseed Processing | — |
| Shortening made from purchased fats and oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Shortening made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Shortening, soybean, made in crushing mills | 311222 Soybean Processing | — |
| Shortening, vegetable, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Shorts, outerwear, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Shorts, outerwear, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Shorts, outerwear, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Shorts, outerwear, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Shorts, 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 |
| Shorts, outerwear, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Shorts, 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 |
| Shorts, outerwear, 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 | — |
| Shorts, underwear, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Shorts, underwear, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Shorts, underwear, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Shorts, 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 |
| Shot hole drilling, oil and gas field, on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Shot peening metal and metal products for the trade | 332811 Metal Heat Treating | 750 employees |
| Shot, BB, manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Shot, lead, manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Shot, pellet, manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Shot, steel, manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Shotcrete contractors | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Shotgun shells manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Shotguns manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Shovel loaders manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Shovels, handheld, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Shovels, power, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Showcases (except refrigerated) manufacturing | 337215 Showcase, Partition, Shelving, and Locker Manufacturing | 500 employees |
| Showcases (except refrigerated) merchant wholesalers | 423440 Other Commercial Equipment Merchant Wholesalers | 100 employees |
| Showcases, refrigerated, manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Shower and bath curtains, all materials, made from purchased fabric or sheet goods | 314120 Curtain and Linen Mills | 750 employees |
| Shower heads, plumbing, manufacturing | 332913 Plumbing Fixture Fitting and Trim Manufacturing | 1,000 employees |
| Shower receptors, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Shower rods, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Shower sandals or slippers, rubber, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Shower stalls, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Shower stalls, plastics or fiberglass, manufacturing | 326191 Plastics Plumbing Fixture Manufacturing | 750 employees |
| Showing of cattle, hogs, sheep, goats, and poultry | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Shredders, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Shredding peat mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Shrimp fishing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Shrimp production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Shrines, religious | 813110 Religious Organizations | $13 million in average annual receipts |
| Shrink wrapping services | 561910 Packaging and Labeling Services | $19.5 million in average annual receipts |
| Shrinking broadwoven fabrics | 313311 Broadwoven Fabric Finishing Mills | — |
| Shrinking textile products and fabrics | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Shrinking textile products and fabrics (except broadwoven) | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Shrub services (e.g., bracing, planting, pruning, removal, spraying, surgery, trimming) | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Shrubbery farming | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Shucking and packing fresh shellfish | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Shunting of trailers in truck terminals | 488490 Other Support Activities for Road Transportation | $18 million in average annual receipts |
| Shunting trailers in rail terminals | 488210 Support Activities for Rail Transportation | $34 million in average annual receipts |
| Shunts, instrument, manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Shutter installation | 238190 Other Foundation, Structure, and Building Exterior Contractors | $19 million in average annual receipts |
| Shutters, door and window, metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Shutters, door and window, wood and covered wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Shutters, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Shutters, wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Shuttle services (except employee bus) | 485999 All Other Transit and Ground Passenger Transportation | $19 million in average annual receipts |
| Shuttles for textile weaving machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Sick room supply stores | 446199 All Other Health and Personal Care Stores | $8.5 million in average annual receipts |
| Sickles manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Siderite mining and/or beneficiating | 212210 Iron Ore Mining | 1,400 employees |
| Sidewalk construction, residential and commercial | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Sidewalk, public, construction | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Siding (e.g., vinyl, wood, aluminum) installation | 238170 Siding Contractors | $19 million in average annual receipts |
| Siding (except wood) merchant wholesalers | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers | 225 employees |
| Siding contractors | 238170 Siding Contractors | $19 million in average annual receipts |
| Siding dealers | 444190 Other Building Material Dealers | $22 million in average annual receipts |
| Siding made from purchased asphaltic materials | 324122 Asphalt Shingle and Coating Materials Manufacturing | 1,100 employees |
| Siding mills, wood | 321113 Sawmills | 550 employees |
| Siding, dressed lumber, manufacturing | 321113 Sawmills | 550 employees |
| Siding, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Siding, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Siding, wood, merchant wholesalers | 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers | 150 employees |
| Sienna mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Sienna pigment manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Sieves and screening equipment (i.e., food manufacturing-type) manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Sieves and screening equipment, chemical preparation-type, manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Sieves and screening equipment, general purpose-type, manufacturing | 333999 All Other Miscellaneous General Purpose Machinery Manufacturing | 500 employees |
| Sieves and screening equipment, mineral beneficiating, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Sieves, made from purchased wire, manufacturing | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Sifting machine (i.e., food manufacturing-type) manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Sights, telescopic, manufacturing | 333314 Optical Instrument and Lens Manufacturing | 500 employees |
| Sightseeing boat operation | 487210 Scenic and Sightseeing Transportation, Water | $14 million in average annual receipts |
| Sightseeing bus operation | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Sightseeing operation, human-drawn vehicle | 487110 Scenic and Sightseeing Transportation, Land | $20.5 million in average annual receipts |
| Sign (except on highways, streets, bridges and tunnels) erection | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Sign erection, highway, roads street or bridge | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Sign language instruction | 611630 Language Schools | $20.5 million in average annual receipts |
| Sign language schools | 611630 Language Schools | $20.5 million in average annual receipts |
| Sign language services | 541930 Translation and Interpretation Services | $22.5 million in average annual receipts |
| Sign lettering and painting services | 541890 Other Services Related to Advertising | $19 million in average annual receipts |
| Sign, building, erection | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Signal and control cable made from purchased copper in wire drawing plants | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Signal and control cable made in aluminum wire drawing plants | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Signal generators and averagers manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Signal systems and devices merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Signaling transformers, electric, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Signals (e.g., highway, pedestrian, railway, traffic) manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Signs (except electrical) merchant wholesalers | 423990 Other Miscellaneous Durable Goods Merchant Wholesalers | 100 employees |
| Signs and signboards (except paper, paperboard) manufacturing | 339950 Sign Manufacturing | 500 employees |
| Signs, electrical, merchant wholesalers | 423440 Other Commercial Equipment Merchant Wholesalers | 100 employees |
| Silica gel manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silica mining and/or beneficiating | 212322 Industrial Sand Mining | 750 employees |
| Silica sand quarrying and/or beneficiating | 212322 Industrial Sand Mining | 750 employees |
| Silica, amorphous, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silicofluorides manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silicomanganese ferroalloys manufacturing | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Silicon carbide abrasives manufacturing | 327910 Abrasive Product Manufacturing | 900 employees |
| Silicon wafers, chemically doped, manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Silicon wave guides manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Silicon, ultra high purity, manufacturing | 327992 Ground or Treated Mineral and Earth Manufacturing | 600 employees |
| Silicone (except resins) manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Silicone resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Silicone rubber manufacturing | 325212 Synthetic Rubber Manufacturing | 1,000 employees |
| Silk fabrics, broadwoven, weaving | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Silk screen design services | 541430 Graphic Design Services | $9 million in average annual receipts |
| Silk screens for textile fabrics manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Silk spun yarns made from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Silk thread manufacturing | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Silk throwing, spooling, twisting, or winding of puchased yarn | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Silk, raw, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Sillimanite mining and/or beneficiating | 212325 Clay and Ceramic and Refractory Minerals Mining | 500 employees |
| Sills, concrete, manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Silo construction | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Silos, prefabricated concrete, manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Silos, prefabricated metal, manufacturing | 332311 Prefabricated Metal Building and Component Manufacturing | 750 employees |
| Silver and silver alloy 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 |
| Silver beating (i.e., foil, leaf) | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Silver bromide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silver bullion or dore bar produced at primary metal refineries | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Silver chloride manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silver compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silver foil and leaf not made in rolling mills | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Silver foil made by rolling purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Silver nitrate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Silver ores mining and/or beneficiating | 212222 Silver Ore Mining | 250 employees |
| Silver polishes manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Silver recovering from scrap and/or alloying purchased metals | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Silver recovering from used photographic film or X-ray plates | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Silver refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Silver rolling, drawing, or extruding purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Silverware rental | 532289 All Other Consumer Goods Rental | $12.5 million in average annual receipts |
| Silverware, precious and plated, merchant wholesalers | 423940 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers | 125 employees |
| Sine bars (i.e., a machine tool accessory) manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Singers, independent | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Singing societies | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Singing telegram services | 812990 All Other Personal Services | $15 million in average annual receipts |
| Single family house rental or leasing | 531110 Lessors of Residential Buildings and Dwellings | $34 million in average annual receipts |
| Single photon emission computerized tomography (SPECT) centers | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| Single-family attached housing construction general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Single-family detached housing construction general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Single-family homes built on land owned by others, general contractors of | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Single-family house construction by general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Single-family housing built on own land for sale (i.e., for-sale builders) | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Single-family housing construction for sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Sinking shafts for coal mining on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Sinking shafts for metal mining on a contract basis | 213114 Support Activities for Metal Mining | $41 million in average annual receipts |
| Sinks, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Sinks, plastics, manufacturing | 326191 Plastics Plumbing Fixture Manufacturing | 750 employees |
| Sinks, vitreous china, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Sintered iron ore produced at the mine | 212210 Iron Ore Mining | 1,400 employees |
| Sintered phosphate rock mining and/or beneficiating | 212392 Phosphate Rock Mining | 1,000 employees |
| Sirens (e.g., air raid, industrial, marine, vehicle) manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Site location consulting services | 541611 Administrative Management and General Management Consulting Services | $24.5 million in average annual receipts |
| Site remediation consulting services | 541620 Environmental Consulting Services | $19 million in average annual receipts |
| Site remediation services | 562910 Remediation Services | $25 million in average annual receipts |
| Site selection consulting services | 541611 Administrative Management and General Management Consulting Services | $24.5 million in average annual receipts |
| Sitting services, house | 812990 All Other Personal Services | $15 million in average annual receipts |
| Sitting services, pet | 812910 Pet Care (except Veterinary) Services | $9 million in average annual receipts |
| Sizing of broadwoven fabrics | 313311 Broadwoven Fabric Finishing Mills | — |
| Sizing of fabric | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Sizing of fabric (except broadwoven) | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Skateboards manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Skates and parts, ice and roller, manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Skeet shooting facilities | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Skelp, iron or steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Sketch artists, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Skewers, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Ski area design services | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Ski area planning services | 541320 Landscape Architectural Services | $9 million in average annual receipts |
| Ski equipment rental | 532284 Recreational Goods Rental | $9 million in average annual receipts |
| Ski lift and tow operators | 713920 Skiing Facilities | $35 million in average annual receipts |
| Ski lodges and resorts with accommodations | 721110 Hotels (except Casino Hotels) and Motels | $40 million in average annual receipts |
| Ski pants cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Ski pants made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Ski pants, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Ski pants, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Ski pants, 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 |
| Ski pants, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Ski pants, 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 |
| Ski pants, 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 | — |
| Ski resorts without accommodations | 713920 Skiing Facilities | $35 million in average annual receipts |
| Ski suits cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Ski suits made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Ski suits, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Ski suits, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Ski suits, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Ski suits, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Ski suits, women's, girls', and infants', cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Ski suits, 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 | — |
| Ski tow construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Skid rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Skidding of rigs, oil and gas field, on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Skids and pallets, wood or wood and metal combination, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Skids, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Skiers, independent (i.e., participating in sports events) | 711219 Other Spectator Sports | $16.5 million in average annual receipts |
| Skiing equipment and supplies merchant wholesalers | 423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers | 100 employees |
| Skiing facilities, cross country, without accommodations | 713920 Skiing Facilities | $35 million in average annual receipts |
| Skiing facilities, downhill, without accommodations | 713920 Skiing Facilities | $35 million in average annual receipts |
| Skiing instruction, camps, or schools | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Skilled nursing facilities | 623110 Nursing Care Facilities (Skilled Nursing Facilities) | $34 million in average annual receipts |
| Skin blister packaging services | 561910 Packaging and Labeling Services | $19.5 million in average annual receipts |
| Skin diving instruction, camps, or schools | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Skin grafting equipment manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Skins, dressed, merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Skins, raw, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Skins, tanning, currying and finishing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Skip tracing services | 561611 Investigation and Personal Background Check Services | $25 million in average annual receipts |
| Skirting leather manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Skirts (except tennis skirts), women's, misses', and girls', cut and sewn from purchased fabric (except apparel contractors) | 315234 Women's and Girls' Cut and Sew Suit, Coat, Tailored Jacket, and Skirt Manufacturing | — |
| Skirts cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Skirts made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Skirts, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Skirts, tennis, 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 |
| Skirts, tennis, 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 | — |
| Skirts, 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 |
| Skirts, women's, misses', girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Skis and skiing equipment (except apparel) manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Skivers, leather, manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Sky diving instruction, camps, or schools | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Skylight installation | 238160 Roofing Contractors | $19 million in average annual receipts |
| Skylights, metal, manufacturing | 332321 Metal Window and Door Manufacturing | 750 employees |
| Slab, nonferrous metals (except aluminum) primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Slab, nonferrous metals (except aluminum, copper), primary | 331419 Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum) | — |
| Slab, primary aluminum, manufacturing | 331313 Alumina Refining and Primary Aluminum Production | 1,300 employees |
| Slab, steel, made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Slacks cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Slacks made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Slacks, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Slacks, jean-cut casual, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Slacks, jean-cut casual, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Slacks, jean-cut casual, made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Slacks, jean-cut casual, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Slacks, jean-cut casual, 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 |
| Slacks, jean-cut casual, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Slacks, jean-cut casual, 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 |
| Slacks, jean-cut casual, 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 | — |
| Slacks, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Slacks, 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 |
| Slacks, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Slacks, 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 |
| Slacks, 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 | — |
| Slag mixers, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Slate (i.e., masonry) contractors | 238140 Masonry Contractors | $19 million in average annual receipts |
| Slate crushed and broken stone mining and/or beneficiating | 212319 Other Crushed and Broken Stone Mining and Quarrying | 550 employees |
| Slate mining or quarrying | 212311 Dimension Stone Mining and Quarrying | 500 employees |
| Slate products manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Slate, interior, installation | 238340 Tile and Terrazzo Contractors | $19 million in average annual receipts |
| Slaughtering, custom | 311611 Animal (except Poultry) Slaughtering | 1,150 employees |
| Slaw, cole, fresh, manufacturing | 311991 Perishable Prepared Food Manufacturing | 700 employees |
| Sledgehammers manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Sleds, children's, manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Sleep disorder centers and clinics, outpatient | 621498 All Other Outpatient Care Centers | $25.5 million in average annual receipts |
| Sleeper mechanisms, convertible bed, manufacturing | 337215 Showcase, Partition, Shelving, and Locker Manufacturing | 500 employees |
| Sleeping bags manufacturing | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Sleeves, welder's, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Slicing machinery (i.e., food manufacturing-type) manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Slide fasteners (i.e., zippers) manufacturing | 339993 Fastener, Button, Needle, and Pin Manufacturing | 750 employees |
| Slings, lifting, made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Slip clay mining and/or beneficiating | 212324 Kaolin and Ball Clay Mining | 750 employees |
| Slip rings for motors and generators manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Slipcovers merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Slipcovers, all materials, made from purchased materials | 314120 Curtain and Linen Mills | 750 employees |
| Slipper socks made from purchased socks | 316210 Footwear Manufacturing | 1,000 employees |
| Slipper socks made in sock mills | 315110 Hosiery and Sock Mills | 750 employees |
| Slippers merchant wholesalers | 424340 Footwear Merchant Wholesalers | 200 employees |
| Slippers, ballet, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Slippers, house, manufacturing | 316210 Footwear Manufacturing | 1,000 employees |
| Slips cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Slips made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Slips, women's and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Slips, 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 |
| Slips, 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 | — |
| SLMA (Student Loan Marketing Association) | 522294 Secondary Market Financing | $41.5 million in average annual receipts |
| Slot car racetracks (i.e., amusement devices) | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Slot machine concession operators (i.e., supplying and servicing in others' facilities) | 713290 Other Gambling Industries | $40 million in average annual receipts |
| Slot machine parlors | 713290 Other Gambling Industries | $40 million in average annual receipts |
| Slot machines manufacturing | 339999 All Other Miscellaneous Manufacturing | 550 employees |
| Slotting machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Sludge disposal sites | 562212 Solid Waste Landfill | $47 million in average annual receipts |
| Sludge tables manufacturing | 333999 All Other Miscellaneous General Purpose Machinery Manufacturing | 500 employees |
| Slumped brick manufacturing | 327331 Concrete Block and Brick Manufacturing | 500 employees |
| Slurry pipeline transportation | 486990 All Other Pipeline Transportation | $46 million in average annual receipts |
| Slush pits and cellars, excavation of, on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Small animal veterinary services | 541940 Veterinary Services | $10 million in average annual receipts |
| Small arms ammunition (i.e., 30 mm. or less, 1.18 inch or less) manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Small business development agencies | 926110 Administration of General Economic Programs | — |
| Small engine repair and maintenance shops | 811411 Home and Garden Equipment Repair and Maintenance | $9 million in average annual receipts |
| Small game, processing, fresh, frozen, canned or cooked | 311615 Poultry Processing | 1,250 employees |
| Small game, slaughtering, dressing and packing | 311615 Poultry Processing | 1,250 employees |
| Small loan companies (i.e., unsecured cash loans) | 522291 Consumer Lending | $47 million in average annual receipts |
| Smelter construction | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Smelting and refining of nonferrous metals (except aluminum, copper), secondary | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Smelting machinery and equipment merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Smelting nonferrous metals (except aluminum, copper), secondary | 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | 850 employees |
| Smelting of nonferrous metals (except aluminum), primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Smelting of nonferrous metals (except aluminum, copper), primary | 331419 Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum) | — |
| Smelting ovens manufacturing | 333994 Industrial Process Furnace and Oven Manufacturing | 500 employees |
| Smelting pots and retorts manufacturing | 332420 Metal Tank (Heavy Gauge) Manufacturing | 750 employees |
| Smithsonite mining and/or beneficiating | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Smoke detection system, installation only | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Smoke detectors manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Smoke detectors, household-type, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Smoke generators manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Smoked meats made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Smokers' supplies merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Smokers' supply stores | 453991 Tobacco Stores | $8 million in average annual receipts |
| Smokestacks, fabricated metal boiler plate, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Smoking cessation programs | 621999 All Other Miscellaneous Ambulatory Health Care Services | $20.5 million in average annual receipts |
| Smoking tobacco (e.g., cigarette, pipe) manufacturing | 312230 Tobacco Manufacturing | 1,500 employees |
| Snack and confection vending machines manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Snack bars (e.g., cookies, popcorn, pretzels), fixed location | 722515 Snack and Nonalcoholic Beverage Bars | $22.5 million in average annual receipts |
| Snack stands, mobile | 722330 Mobile Food Services | $9 million in average annual receipts |
| Snap bean farming (i.e., bush and pole), field and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Snap switches (i.e., electric wiring devices) manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Snapper fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Snow clearing, highways and bridges, road transportation | 488490 Other Support Activities for Road Transportation | $18 million in average annual receipts |
| Snow fence lath manufacturing | 321912 Cut Stock, Resawing Lumber, and Planing | 500 employees |
| Snow fence, sections or rolls, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Snow making machinery manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Snow melting cable, electric, installation | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Snow melting system (e.g., hot water, glycol) installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Snow pea farming, field and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Snow plow attachments (except lawn, garden-type) manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Snow plow attachments, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Snow plowing driveways and parking lots (i.e., not combined with any other service) | 561790 Other Services to Buildings and Dwellings | $9 million in average annual receipts |
| Snow plowing services combined with landscaping services (i.e., seasonal property maintenance services) | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Snow plows merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Snow removal, highway | 488490 Other Support Activities for Road Transportation | $18 million in average annual receipts |
| Snow ski equipment rental | 532284 Recreational Goods Rental | $9 million in average annual receipts |
| Snowblowers (except household-type) merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Snowblowers and throwers, residential-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Snowblowers, household-type, merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Snowmobile dealers | 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers | $35 million in average annual receipts |
| Snowmobile merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Snowmobile racetracks | 711212 Racetracks | $47 million in average annual receipts |
| Snowmobile racing teams | 711219 Other Spectator Sports | $16.5 million in average annual receipts |
| Snowmobiles and parts manufacturing | 336999 All Other Transportation Equipment Manufacturing | 1,000 employees |
| Snowmobiling, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Snowshoes manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Snowsuits cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Snowsuits made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Snowsuits, infants', cut and sewn from purchased fabric (except apparel contractors) | 315291 Infants' Cut and Sew Apparel Manufacturing | — |
| Snowsuits, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Snowsuits, 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 |
| Snowsuits, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Snowsuits, 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 |
| Snowsuits, 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 | — |
| Snuff manufacturing | 312230 Tobacco Manufacturing | 1,500 employees |
| Snuff merchant wholesalers | 424940 Tobacco Product and Electronic Cigarette Merchant Wholesalers | 250 employees |
| Soap dishes, vitreous china and earthenware, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Soap dispensers, metal, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Soaps (e.g., bar, chip, powder) manufacturing | 325611 Soap and Other Detergent Manufacturing | 1,100 employees |
| Soapstone mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Soccer clubs, professional or semiprofessional | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Soccer clubs, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Soccer instruction, camps, or schools | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Soccer teams, professional or semiprofessional | 711211 Sports Teams and Clubs | $47 million in average annual receipts |
| Social assistance cost-sharing, government | 923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs) | — |
| Social change advocacy organizations | 813319 Other Social Advocacy Organizations | $18 million in average annual receipts |
| Social clubs | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Social escort services | 812990 All Other Personal Services | $15 million in average annual receipts |
| Social organizations, civic and fraternal | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Social science research and development services | 541720 Research and Development in the Social Sciences and Humanities | $28 million in average annual receipts |
| Social Security Administration (SSA), federal | 923130 Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Programs) | — |
| Social service advocacy organizations | 813319 Other Social Advocacy Organizations | $18 million in average annual receipts |
| Social service agencies, family | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Social service centers, multipurpose | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Social stationery merchant wholesalers | 424120 Stationery and Office Supplies Merchant Wholesalers | 150 employees |
| Social workers' , mental health, offices (e.g., centers, clinics) | 621330 Offices of Mental Health Practitioners (except Physicians) | $9 million in average annual receipts |
| Social workers' associations | 813920 Professional Organizations | $23.5 million in average annual receipts |
| Sociological research and development services | 541720 Research and Development in the Social Sciences and Humanities | $28 million in average annual receipts |
| Sociology research and development services | 541720 Research and Development in the Social Sciences and Humanities | $28 million in average annual receipts |
| Sockets and socket sets manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Sockets, electric, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Socks knitting or knitting and finishing | 315110 Hosiery and Sock Mills | 750 employees |
| Socks, men's and boy's, manufacturing | 315110 Hosiery and Sock Mills | 750 employees |
| Socks, slipper, made from purchased socks | 316210 Footwear Manufacturing | 1,000 employees |
| Socks, slipper, made in sock mills | 315110 Hosiery and Sock Mills | 750 employees |
| Sod farming | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Sod harvesting machines manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Sod laying services | 561730 Landscaping Services | $9.5 million in average annual receipts |
| Soda ash manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Soda ash mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Soda ash, natural, mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Soda bottles, glass, manufacturing | 327213 Glass Container Manufacturing | 1,250 employees |
| Soda carbonated, manufacturing | 312111 Soft Drink Manufacturing | 1,400 employees |
| Soda crackers manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Soda fountain cooling and dispensing equipment manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Soda fountain fixtures (except refrigerated) merchant wholesalers | 423440 Other Commercial Equipment Merchant Wholesalers | 100 employees |
| Soda fountain syrups manufacturing | 311930 Flavoring Syrup and Concentrate Manufacturing | 1,100 employees |
| Soda pop manufacturing | 312111 Soft Drink Manufacturing | 1,400 employees |
| Sodium acetate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium alginate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium aluminate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium aluminum sulfate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium antimoniate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium arsenite (except insecticides) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium arsenite insecticides manufacturing | 325320 Pesticide and Other Agricultural Chemical Manufacturing | 1,150 employees |
| Sodium benzoate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium bicarbonate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium bichromate and chromate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium borate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium borates, natural, mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Sodium borohydride manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium bromide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium carbonate (i.e., soda ash) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium carbonates, natural, mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Sodium chlorate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium chloride pharmaceutical preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Sodium chloride, rock salt, mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Sodium compounds prepared at beneficiating plants | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Sodium compounds, natural (except common salt), mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Sodium cyanide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium glutamate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium hydrosulfite manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium hydroxide (i.e., caustic soda) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium hypochlorite manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium inorganic compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium molybdate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium organic compounds, not specified elsewhere by process, manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium pentachlorophenate manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium perborate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium peroxide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium phosphate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium polyphosphate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium salicylate preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Sodium silicate (i.e., water glass) manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium silicofluoride manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium stannate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium sulfate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium sulfate, natural, mining and/or beneficiating | 212391 Potash, Soda, and Borate Mineral Mining | 750 employees |
| Sodium sulfoxalate formaldehyde manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sodium tetraborate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium thiosulfate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium tungstate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium uranate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Sodium vapor lamp bulbs manufacturing | 335110 Electric Lamp Bulb and Part Manufacturing | 1,250 employees |
| Sofa beds and chair beds, upholstered, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Sofas, convertible (except futons), manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Sofas, upholstered, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Soft drink beverage bars, nonalcoholic, fixed location | 722515 Snack and Nonalcoholic Beverage Bars | $22.5 million in average annual receipts |
| Soft drink cans manufacturing | 332431 Metal Can Manufacturing | 1,500 employees |
| Soft drink concentrates (i.e., syrup) manufacturing | 311930 Flavoring Syrup and Concentrate Manufacturing | 1,100 employees |
| Soft drink stores, bottled | 445299 All Other Specialty Food Stores | $9 million in average annual receipts |
| Soft drink vending machines manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Soft drinks manufacturing | 312111 Soft Drink Manufacturing | 1,400 employees |
| Soft drinks merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Soft pretzels made in a commercial bakery | 311812 Commercial Bakeries | 1,000 employees |
| Softeners, leather or textile, manufacturing | 325613 Surface Active Agent Manufacturing | 1,100 employees |
| Software analysis and design services, custom computer | 541511 Custom Computer Programming Services | $34 million in average annual receipts |
| Software application training | 611420 Computer Training | $16 million in average annual receipts |
| Software computer, packaged, publishers | 511210 Software Publishers | $41.5 million in average annual receipts |
| Software installation services, computer | 541519 Other Computer Related Services | $34 million in average annual receipts |
| Software programming services, custom computer | 541511 Custom Computer Programming Services | $34 million in average annual receipts |
| Software publishers | 511210 Software Publishers | $41.5 million in average annual receipts |
| Software publishers, packaged | 511210 Software Publishers | $41.5 million in average annual receipts |
| Software stores, computer | 443142 Electronics Stores | $35 million in average annual receipts |
| Software, computer, packaged, merchant wholesalers | 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers | 250 employees |
| Software, packaged, mass reproducing | 334614 Software and Other Prerecorded Compact Disc, Tape, and Record Reproducing | 1,250 employees |
| Softwood dimension lumber and stock, resawing purchased lumber | 321912 Cut Stock, Resawing Lumber, and Planing | 500 employees |
| Softwood distillates manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Softwood plywood composites manufacturing | 321212 Softwood Veneer and Plywood Manufacturing | 1,250 employees |
| Softwood veneer or plywood manufacturing | 321212 Softwood Veneer and Plywood Manufacturing | 1,250 employees |
| Soil compacting | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Soil conservation services, government | 924120 Administration of Conservation Programs | — |
| Soil pipe, cast iron, manufacturing | 331511 Iron Foundries | 1,000 employees |
| Soil remediation services | 562910 Remediation Services | $25 million in average annual receipts |
| Soil test drilling | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Soil testing kits manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Soil testing laboratories or services | 541380 Testing Laboratories and Services | $19 million in average annual receipts |
| Solar cells manufacturing | 334413 Semiconductor and Related Device Manufacturing | 1,250 employees |
| Solar cells merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Solar energy heating equipment manufacturing | 333414 Heating Equipment (except Warm Air Furnaces) Manufacturing | 500 employees |
| Solar energy regulation | 926130 Regulation and Administration of Communications, Electric, Gas, and Other Utilities | — |
| Solar farms | 221114 Solar Electric Power Generation | 500 employees |
| Solar heating equipment installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Solar heating panels and equipment merchant wholesalers | 423720 Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers | 200 employees |
| Solar heating systems manufacturing | 333414 Heating Equipment (except Warm Air Furnaces) Manufacturing | 500 employees |
| Solar lighting fixtures (except residential), electric, manufacturing | 335122 Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing | 500 employees |
| Solar lighting fixtures, residential, electric, manufacturing | 335121 Residential Electric Lighting Fixture Manufacturing | 750 employees |
| Solar power structure construction | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Solar reflecting coating, roof, application | 238160 Roofing Contractors | $19 million in average annual receipts |
| Solar reflective film merchant wholesalers | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers | 225 employees |
| Solarimeters manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Solder wire, nonferrous metals (except aluminum, copper), made from purchased metals or scrap | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Soldering equipment (except hand held) manufacturing | 333992 Welding and Soldering Equipment Manufacturing | 1,250 employees |
| Soldering guns and irons, handheld (including electric), manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Soldering iron tips and tiplets manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Solderless connectors (electric wiring devices) manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Sole leather manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Solenoid switches, industrial, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Solenoid valves (except fluid power), industrial-type, manufacturing | 332911 Industrial Valve Manufacturing | 750 employees |
| Solenoid valves, fluid power, manufacturing | 332912 Fluid Power Valve and Hose Fitting Manufacturing | 1,000 employees |
| Solenoids for electronic applications manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Soles, boot and shoe, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Solicitors' offices, government | 922130 Legal Counsel and Prosecution | — |
| Solicitors' offices, private | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Solicitors' private practices | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Solid fuel propellants, inorganic, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Solid waste combustors or incinerators, nonhazardous | 562213 Solid Waste Combustors and Incinerators | $47 million in average annual receipts |
| Solid waste landfills combined with collection and/or local hauling of nonhazardous waste materials | 562212 Solid Waste Landfill | $47 million in average annual receipts |
| Solid waste landfills, nonhazardous | 562212 Solid Waste Landfill | $47 million in average annual receipts |
| Soloists, independent musical | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Solvent dyes manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Solvents made in petroleum refineries | 324110 Petroleum Refineries | 1,500 employees |
| Sonabuoys manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Sonar equipment merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Sonar fish finders manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Sonar systems and equipment manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Song publishers | 512230 Music Publishers | 900 employees |
| Song publishers and printing combined | 512230 Music Publishers | 900 employees |
| Song writers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Soot removing chemicals manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Sorbitol manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Sorghum farming, field and seed production | 111199 All Other Grain Farming | $2.3 million in average annual receipts |
| Sorghum flour manufacturing | 311211 Flour Milling | 1,050 employees |
| Sorghum sudan seed farming | 111998 All Other Miscellaneous Crop Farming | $2.5 million in average annual receipts |
| Sorghum syrup manufacturing | 311999 All Other Miscellaneous Food Manufacturing | 700 employees |
| Sororities (except residential) | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Sorority houses | 721310 Rooming and Boarding Houses, Dormitories, and Workers' Camps | $14 million in average annual receipts |
| Sorting, grading, cleaning, and packing of fruits and vegetables | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Sound and lighting equipment rental or leasing | 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Sound dubbing services, motion picture | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Sound equipment installation | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Sound insulation merchant wholesalers | 423330 Roofing, Siding, and Insulation Material Merchant Wholesalers | 225 employees |
| Sound recording studios (except integrated record companies) | 512240 Sound Recording Studios | $11 million in average annual receipts |
| Sound recording, integrated production, reproduction, release, and distribution | 512250 Record Production and Distribution | 900 employees |
| Sound recording, releasing, promoting, and distributing | 512250 Record Production and Distribution | 900 employees |
| Soundproofing contractors | 238310 Drywall and Insulation Contractors | $19 million in average annual receipts |
| Soup cans, light gauge metal, manufacturing | 332431 Metal Can Manufacturing | 1,500 employees |
| Soup kitchens | 624210 Community Food Services | $19.5 million in average annual receipts |
| Soup mixes made in a dehydration plant | 311423 Dried and Dehydrated Food Manufacturing | 750 employees |
| Soup mixes, dry, made from purchased dry ingredients | 311999 All Other Miscellaneous Food Manufacturing | 700 employees |
| Soups (except frozen) merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Soups (except seafood) canning | 311422 Specialty Canning | 1,400 employees |
| Soups, fish and seafood, canning | 311711 Seafood Canning | — |
| Soups, frozen (except seafood), manufacturing | 311412 Frozen Specialty Food Manufacturing | 1,250 employees |
| Soups, frozen fish and shellfish, manufacturing | 311712 Fresh and Frozen Seafood Processing | — |
| Soups, frozen, merchant wholesalers | 424420 Packaged Frozen Food Merchant Wholesalers | 200 employees |
| Soups, seafood, manufacturing | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Sour cream manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Sour cream substitutes manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Souvenir shops | 453220 Gift, Novelty, and Souvenir Stores | $12 million in average annual receipts |
| Soy sauce manufacturing | 311941 Mayonnaise, Dressing, and Other Prepared Sauce Manufacturing | 850 employees |
| Soybean cakes and meal manufacturing | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean cooking oil made from purchased oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Soybean farming, field and seed production | 111110 Soybean Farming | $2.3 million in average annual receipts |
| Soybean fibers and filaments manufacturing | 325220 Artificial and Synthetic Fibers and Filaments Manufacturing | 1,050 employees |
| Soybean flour and grits manufacturing | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean millfeed made in oil mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean oil mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean oil, cake, and meal, made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean oil, crude, manufacturing | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean oil, deodorized, made in oil mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean oil, refined, made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean plastics manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Soybean protein concentrates made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybean protein isolates made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Soybeans merchant wholesalers | 424510 Grain and Field Bean Merchant Wholesalers | 200 employees |
| Space capsules manufacturing | 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing | 1,050 employees |
| Space flight operations, government | 927110 Space Research and Technology | — |
| Space heaters (except portable electric) manufacturing | 333414 Heating Equipment (except Warm Air Furnaces) Manufacturing | 500 employees |
| Space satellites, communications, manufacturing | 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | 1,250 employees |
| Space simulation chambers, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Space suits manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Space transportation, freight, nonscheduled | 481212 Nonscheduled Chartered Freight Air Transportation | 1,500 employees |
| Space vehicle guidance systems and equipment manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Space vehicles, complete, manufacturing | 336414 Guided Missile and Space Vehicle Manufacturing | 1,300 employees |
| Spades and shovels, handheld, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Spaghetti canning | 311422 Specialty Canning | 1,400 employees |
| Spaghetti merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Spaghetti sauce canning | 311421 Fruit and Vegetable Canning | 1,000 employees |
| Spaghetti squash farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Spaghetti, dry, manufacturing | 311824 Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour | 850 employees |
| Spandex broadwoven fabrics | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Spandex fiber, filaments, and yarn manufacturing | 325220 Artificial and Synthetic Fibers and Filaments Manufacturing | 1,050 employees |
| Spanish moss gathering | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Spar, iceland, mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Spark plug insulators, porcelain, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Spark plug testing instruments, electric, manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Spark plugs for internal combustion engines manufacturing | 336320 Motor Vehicle Electrical and Electronic Equipment Manufacturing | 1,000 employees |
| Sparkling wines manufacturing | 312130 Wineries | 1,000 employees |
| Spars, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Spas without accommodations, fitness | 713940 Fitness and Recreational Sports Centers | $17.5 million in average annual receipts |
| Spats, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Spatulas, rubber, manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Speaker cabinets (i.e., housings), wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Speaker systems manufacturing | 334310 Audio and Video Equipment Manufacturing | 750 employees |
| Speakers' bureaus | 711410 Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures | $17.5 million in average annual receipts |
| Speakers' clubs | 813410 Civic and Social Organizations | $9.5 million in average annual receipts |
| Speakers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Spearmint oil manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Special effect technicians, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Special effects for motion picture production, post-production | 512191 Teleproduction and Other Postproduction Services | $39 million in average annual receipts |
| Special interest portals (e.g., parents sharing information about child rearing, etc.), internet | 519130 Internet Publishing and Broadcasting and Web Search Portals | 1,000 employees |
| Special needs passenger transportation services | 485991 Special Needs Transportation | $19 million in average annual receipts |
| Special purpose financial vehicles | 525990 Other Financial Vehicles | $40 million in average annual receipts |
| Special purpose highway vehicle (e.g., firefighting vehicles) assembling on purchased chassis | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Special purpose highway vehicle (e.g., firefighting vehicles) bodies manufacturing | 336211 Motor Vehicle Body Manufacturing | 1,000 employees |
| Special purpose highway vehicles (e.g., firefighting vehicles) assembling on heavy chassis of own manufacture | 336120 Heavy Duty Truck Manufacturing | 1,500 employees |
| Special purpose industrial machinery and equipment merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Specialty food stores | 445299 All Other Specialty Food Stores | $9 million in average annual receipts |
| Specialty leathers manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Specialty television (e.g., music, sports, news) cable networks | 515210 Cable and Other Subscription Programming | $41.5 million in average annual receipts |
| Specialty transformers, electric, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Specialty-line pharmaceuticals merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Specific ion measuring instruments, laboratory-type, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Spectator seating installation | 238390 Other Building Finishing Contractors | $19 million in average annual receipts |
| Spectrofluorometers manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Spectrographs manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Spectrometers (e.g., electron diffraction, mass, NMR, Raman) manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Spectrometers (e.g., liquid scintillation, nuclear) manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Spectrophotometers (e.g., atomic absorption, atomic emission, flame, fluorescence, infrared, Raman, visible) manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Spectrum analyzers manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Speculative builders (i.e., building on own land, for sale), commercial and institutional building | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Speculative builders (i.e., building on own land, for sale), industrial building (except warehouses) | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Speculative builders (i.e., building on own land, for sale), multifamily housing | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Speculative builders (i.e., building on own land, for sale), residential | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Speculative builders (i.e., building on own land, for sale), single-family housing | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Speculums manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Speech (i.e., language) interpretation services | 541930 Translation and Interpretation Services | $22.5 million in average annual receipts |
| Speech clinicians' offices (e.g., centers, clinics) | 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists | $12.5 million in average annual receipts |
| Speech defect clinics | 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists | $12.5 million in average annual receipts |
| Speech pathologists' offices (e.g., centers, clinics) | 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists | $12.5 million in average annual receipts |
| Speech therapists' offices (e.g., centers, clinics) | 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists | $12.5 million in average annual receipts |
| Speed changers (i.e., power transmission equipment) manufacturing | 333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing | 750 employees |
| Speed reading instruction | 611699 All Other Miscellaneous Schools and Instruction | $16.5 million in average annual receipts |
| Speed reducers (i.e., power transmission equipment) manufacturing | 333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing | 750 employees |
| Speed shops | 441310 Automotive Parts and Accessories Stores | $25 million in average annual receipts |
| Speed, pitch, and roll navigational instruments and systems manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Speedways | 711212 Racetracks | $47 million in average annual receipts |
| Sperm banks, human | 621991 Blood and Organ Banks | $40 million in average annual receipts |
| Sphagnum moss gathering | 113210 Forest Nurseries and Gathering of Forest Products | $20.5 million in average annual receipts |
| Sphalerite mining and/or beneficiating | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Sphygmomanometers manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Spice farming | 111998 All Other Miscellaneous Crop Farming | $2.5 million in average annual receipts |
| Spice farming, grown under cover | 111419 Other Food Crops Grown Under Cover | $4.5 million in average annual receipts |
| Spice grinding and blending | 311942 Spice and Extract Manufacturing | 650 employees |
| Spice mixtures manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Spice stores | 445299 All Other Specialty Food Stores | $9 million in average annual receipts |
| Spices and spice mix manufacturing | 311942 Spice and Extract Manufacturing | 650 employees |
| Spices merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Spiegeleisen ferroalloys manufacturing | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Spigots, plumbing fixture fitting, manufacturing | 332913 Plumbing Fixture Fitting and Trim Manufacturing | 1,000 employees |
| Spigots, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Spike rods made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Spikes made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Spikes, iron or steel, made in wire drawing plants | 331222 Steel Wire Drawing | 1,000 employees |
| Spikes, metal, merchant wholesalers | 423510 Metal Service Centers and Other Metal Merchant Wholesalers | 200 employees |
| Spillway, floodwater, construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Spinach farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Spindles for textile machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Spinning carpet and rug yarn from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Spinning machinery for textiles manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Spinning machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Spinning unfinished metal products | 332119 Metal Crown, Closure, and Other Metal Stamping (except Automotive) | 500 employees |
| Spinning yarn from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Spiral cloth made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Spirits, distilled (except brandy), manufacturing | 312140 Distilleries | 1,100 employees |
| Spirits, distilled, merchant wholesalers | 424820 Wine and Distilled Alcoholic Beverage Merchant Wholesalers | 250 employees |
| Spline rolling machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Splint baskets for fruits and vegetables, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Splints manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Splits, leather, manufacturing | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Spodumene mining and/or beneficiating | 212393 Other Chemical and Fertilizer Mineral Mining | 500 employees |
| Spokes, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Sponge gathering | 114119 Other Marine Fishing | $11.5 million in average annual receipts |
| Sponge iron | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Sponges merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Sponges, metal scouring, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Sponges, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Sponges, rubber, manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Sponging broadwoven fabrics | 313311 Broadwoven Fabric Finishing Mills | — |
| Sponging textile products and fabrics | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Sponging textile products and fabrics (except broadwoven) | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Spooling of yarn | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Spooling of yarns for the trade | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Spools (except for textile machinery), wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Spools for textile machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Spoons, table, nonprecious and precious plated metal, manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Sport coats (except fur, leather), 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 |
| Sport coats cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sport coats, fur (except apparel contractors), manufacturing | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Sport coats, fur, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sport coats, fur, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sport coats, leather (including artificial and tailored) (except apparel contractors), manufacturing | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Sport coats, leather (including artificial and tailored), cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sport coats, leather (including artificial and tailored), men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sport coats, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sport shirts cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sport shirts, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sport shirts, men's and boys', cut and sewn from purchased fabric (except apparel contractors) | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Sport utility vehicle leasing | 532112 Passenger Car Leasing | $47 million in average annual receipts |
| Sport utility vehicle merchant wholesalers | 423110 Automobile and Other Motor Vehicle Merchant Wholesalers | 250 employees |
| Sport utility vehicle rental | 532111 Passenger Car Rental | $47 million in average annual receipts |
| Sport utility vehicles assembling on chassis of own manufacture | 336112 Light Truck and Utility Vehicle Manufacturing | 1,500 employees |
| Sporting equipment repair and maintenance without retailing new sports equipment | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Sporting firearms and ammunition merchant wholesalers | 423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers | 100 employees |
| Sporting goods (except ammunition, clothing, footwear, small arms) manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Sporting goods and supplies merchant wholesalers | 423910 Sporting and Recreational Goods and Supplies Merchant Wholesalers | 100 employees |
| Sporting goods rental | 53228 Other Consumer Goods Rental532284 Recreational Goods Rental | —$9 million in average annual receipts |
| Sporting goods stores | 451110 Sporting Goods Stores | $23.5 million in average annual receipts |
| Sporting goods stores, used | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Sports announcers, independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Sports arena operators | 711310 Promoters of Performing Arts, Sports, and Similar Events with Facilities | $40 million in average annual receipts |
| Sports camps (e.g., baseball, basketball, football), instructional | 611620 Sports and Recreation Instruction | $9 million in average annual receipts |
| Sports clothing (except team uniforms), 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 |
| Sports clothing (except team uniforms), 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 |
| Sports clothing (except team uniforms), 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 | — |
| Sports clothing cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Sports clothing made in apparel knitting mills | 315190 Other Apparel Knitting Mills | 750 employees |
| Sports clothing, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Sports clothing, team uniforms, cut and sewn from purchased fabric (except apparel contractors) | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Sports clothing, women's and girls', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Sports club facilities, physical fitness | 713940 Fitness and Recreational Sports Centers | $17.5 million in average annual receipts |
| Sports clubs (i.e., sports teams) not operating sports facilities, recreational | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Sports clubs, professional or semiprofessional | 711211 Sports Teams and Clubs | $47 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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