NAICS Codes by Business Activity: C (Concrete to Cytology)
Activities 1,645–2,464 of 2,464
| Business activity | NAICS code | Size standard |
|---|---|---|
| Concrete finishing machinery manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Concrete floor surfacing | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Concrete form contractors | 238190 Other Foundation, Structure, and Building Exterior Contractors | $19 million in average annual receipts |
| Concrete forms, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Concrete furniture (e.g., benches, tables) manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Concrete gunning equipment manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Concrete mixing machinery, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Concrete patio construction | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Concrete paving (i.e., highway, road, street, public sidewalk) | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Concrete paving, residential and commercial driveway and parking area | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Concrete pouring | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Concrete processing equipment merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Concrete product (e.g., structural precast, structural prestressed) installation | 238120 Structural Steel and Precast Concrete Contractors | $19 million in average annual receipts |
| Concrete products forming machinery manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Concrete products, precast (except block, brick and pipe), manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Concrete pumping (i.e., placement) | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Concrete reinforcement placement | 238120 Structural Steel and Precast Concrete Contractors | $19 million in average annual receipts |
| Concrete reinforcing bar (rebar) assemblies, fabrication | 332312 Fabricated Structural Metal Manufacturing | 500 employees |
| Concrete reinforcing bar (rebar) made in iron and steel mills | 331110 Iron and Steel Mills and Ferroalloy Manufacturing | 1,500 employees |
| Concrete reinforcing bar (rebar), made from purchased steel in cold rolling mills | 331221 Rolled Steel Shape Manufacturing | 1,000 employees |
| Concrete reinforcing bar (rebar), made from purchased steel in steel rolling mills | 331221 Rolled Steel Shape Manufacturing | 1,000 employees |
| Concrete reinforcing bars merchant wholesalers | 423510 Metal Service Centers and Other Metal Merchant Wholesalers | 200 employees |
| Concrete reinforcing mesh made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Concrete repair | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Concrete resurfacing | 238110 Poured Concrete Foundation and Structure Contractors | $19 million in average annual receipts |
| Concrete sawing and drilling (except demolition) | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Concrete tanks manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Concrete, dry mixture, manufacturing | 327999 All Other Miscellaneous Nonmetallic Mineral Product Manufacturing | 750 employees |
| Condensate, cycle, natural gas production | 211130 Natural Gas Extraction | 1,250 employees |
| Condensed and evaporated milk machinery manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Condensed milk manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Condensed, evaporated or powdered whey, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Condenser boxes, metal, manufacturing | 332410 Power Boiler and Heat Exchanger Manufacturing | 750 employees |
| Condensers (except electronic), fixed and variable, manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Condensers, electronic, manufacturing | 334416 Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing | 550 employees |
| Condensers, electronic, merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Condensers, steam, manufacturing | 332410 Power Boiler and Heat Exchanger Manufacturing | 750 employees |
| Condensers, synchronous, electric, manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Condensing units (except air-conditioning, refrigeration) merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Condensing units, air-conditioning, merchant wholesalers | 423730 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers | 175 employees |
| Condensing units, refrigeration, merchant wholesalers | 423740 Refrigeration Equipment and Supplies Merchant Wholesalers | 125 employees |
| Condom manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Condominium corporations | 813990 Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) | $13.5 million in average annual receipts |
| Condominium for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Condominium managers' offices, commercial | 531312 Nonresidential Property Managers | $19.5 million in average annual receipts |
| Condominium managers' offices, residential | 531311 Residential Property Managers | $12.5 million in average annual receipts |
| Condominium owners' associations | 813990 Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) | $13.5 million in average annual receipts |
| Condominium time share exchange services | 561599 All Other Travel Arrangement and Reservation Services | $32.5 million in average annual receipts |
| Condominium, multifamily, construction general contractors | 236116 New Multifamily Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Condominium, single-family, construction general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Conductor connectors, solderless connectors, sleeves, or soldering lugs, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Conduit, vitrified clay, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Conduit, welded and lock joint, made from purchased iron or steel | 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | 1,000 employees |
| Conduits and fittings, electrical, manufacturing | 335932 Noncurrent-Carrying Wiring Device Manufacturing | 1,000 employees |
| Conduits, concrete, manufacturing | 327332 Concrete Pipe Manufacturing | 750 employees |
| Cones (e.g., winding yarn, string, ribbon, cloth), fiber, made from purchased paperboard | 322219 Other Paperboard Container Manufacturing | 1,000 employees |
| Cones, ice cream, manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Cones, pyrometric, earthenware, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Confectioner's beet sugar manufacturing | 311313 Beet Sugar Manufacturing | 1,150 employees |
| Confectioner's powdered sugar made from purchased raw cane sugar | 311312 Cane Sugar Refining | — |
| Confectioner's powdered sugar manufacturing | 311314 Cane Sugar Manufacturing | 1,050 employees |
| Confectionery chocolate made from cacao beans | 311351 Chocolate and Confectionery Manufacturing from Cacao Beans | 1,250 employees |
| Confectionery machinery manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Confectionery merchant wholesalers | 424450 Confectionery Merchant Wholesalers | 225 employees |
| Confectionery snack shops, made on premises with carryout services | 722515 Snack and Nonalcoholic Beverage Bars | $22.5 million in average annual receipts |
| Confectionery stores, packaged, retailing only | 445292 Confectionery and Nut Retailers | $19.5 million in average annual receipts |
| Confectionery, nonchocolate, manufacturing | 311340 Nonchocolate Confectionery Manufacturing | 1,000 employees |
| Conference center, no promotion of events, rental or leasing | 531120 Lessors of Nonresidential Buildings (except Miniwarehouses) | $34 million in average annual receipts |
| Confetti made from purchased paper | 322299 All Other Converted Paper Product Manufacturing | 500 employees |
| Congress of the United States | 921120 Legislative Bodies | — |
| Connecting rods, automotive and truck gasoline engine, manufacturing | 336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 1,050 employees |
| Connectors and terminals for electrical devices manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Connectors, electric cord, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Connectors, electronic (e.g., coaxial, cylindrical, printed circuit, rack and panel), manufacturing | 334417 Electronic Connector Manufacturing | 1,000 employees |
| Connectors, electronic, merchant wholesalers | 423690 Other Electronic Parts and Equipment Merchant Wholesalers | 250 employees |
| Connectors, power, manufacturing | 335313 Switchgear and Switchboard Apparatus Manufacturing | 1,250 employees |
| Connectors, solderless (wiring devices), manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Connectors, twist on wire (i.e., nuts), manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Conservation advocacy organizations | 813312 Environment, Conservation and Wildlife Organizations | $19.5 million in average annual receipts |
| Conservation and reclamation agencies | 924120 Administration of Conservation Programs | — |
| Conservation areas | 712190 Nature Parks and Other Similar Institutions | $19.5 million in average annual receipts |
| Conservatories of music (colleges or universities) | 611310 Colleges, Universities, and Professional Schools | $34.5 million in average annual receipts |
| Conservatories, botanical | 712130 Zoos and Botanical Gardens | $34 million in average annual receipts |
| Conservators (i.e., art, artifact restorers), independent | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Conservatory of music (except academic) | 611610 Fine Arts Schools | $9 million in average annual receipts |
| Consignment shops, used merchandise | 453310 Used Merchandise Stores | $12.5 million in average annual receipts |
| Constant velocity joints, automotive, truck, and bus, manufacturing | 336350 Motor Vehicle Transmission and Power Train Parts Manufacturing | 1,500 employees |
| Constituencies' associations, political party | 813940 Political Organizations | $14 million in average annual receipts |
| Construction adhesives (except asphalt, gypsum base) manufacturing | 325520 Adhesive Manufacturing | 550 employees |
| Construction associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Construction elevator (i.e., temporary use during construction) erection and dismantling | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Construction engineering services | 541330 Engineering Services | $25.5 million in average annual receipts |
| Construction equipment (except crane) rental with operator | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Construction form rental | 532412 Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Construction lending | 522292 Real Estate Credit | $47 million in average annual receipts |
| Construction machinery and equipment merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Construction machinery and equipment rental or leasing without operator | 532412 Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Construction machinery and equipment repair and maintenance services | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $12.5 million in average annual receipts |
| Construction machinery manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Construction management, commercial and institutional building | 236220 Commercial and Institutional Building Construction | $45 million in average annual receipts |
| Construction management, dam | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Construction management, highway, road, street and bridge | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Construction management, industrial building (except warehouses) | 236210 Industrial Building Construction | $45 million in average annual receipts |
| Construction management, marine structure | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Construction management, mass transit | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Construction management, multifamily building | 236116 New Multifamily Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Construction management, oil and gas pipeline | 237120 Oil and Gas Pipeline and Related Structures Construction | $45 million in average annual receipts |
| Construction management, oil refinery and petrochemical complex | 237120 Oil and Gas Pipeline and Related Structures Construction | $45 million in average annual receipts |
| Construction management, outdoor recreation facility | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Construction management, power and communication transmission line | 237130 Power and Communication Line and Related Structures Construction | $45 million in average annual receipts |
| Construction management, residential remodeling | 236118 Residential Remodelers | $45 million in average annual receipts |
| Construction management, single-family building | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Construction management, tunnel | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Construction management, water and sewage treatment plant | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Construction management, water and sewer line | 237110 Water and Sewer Line and Related Structures Construction | $45 million in average annual receipts |
| Construction materials, electrical, merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Construction paper, school and art, made from purchased paper | 322230 Stationery Product Manufacturing | 750 employees |
| Construction paper, school and art, made in paper mills | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Construction sand and gravel beneficiating (e.g., grinding, screening, washing) | 212321 Construction Sand and Gravel Mining | 500 employees |
| Construction sand or gravel dredging | 212321 Construction Sand and Gravel Mining | 500 employees |
| Construction surveying services | 541370 Surveying and Mapping (except Geophysical) Services | $19 million in average annual receipts |
| Construction-type tractors and attachments manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Consulates | 928120 International Affairs | — |
| Consultants' associations | 813920 Professional Organizations | $23.5 million in average annual receipts |
| Consultants', real estate (except appraisers), offices | 531390 Other Activities Related to Real Estate | $19.5 million in average annual receipts |
| Consulting engineers' offices | 541330 Engineering Services | $25.5 million in average annual receipts |
| Consulting engineers' private practices | 541330 Engineering Services | $25.5 million in average annual receipts |
| Consumer buying services | 812990 All Other Personal Services | $15 million in average annual receipts |
| Consumer credit counseling services | 541990 All Other Professional, Scientific, and Technical Services | $19.5 million in average annual receipts |
| Consumer credit reporting bureaus | 561450 Credit Bureaus | $41 million in average annual receipts |
| Consumer electronics merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Consumer electronics rental | 532210 Consumer Electronics and Appliances Rental | $47 million in average annual receipts |
| Consumer electronics repair and maintenance services without retailing new consumer electronics | 811211 Consumer Electronics Repair and Maintenance | $22.5 million in average annual receipts |
| Consumer finance companies (i.e., unsecured cash loans) | 522291 Consumer Lending | $47 million in average annual receipts |
| Consumer lending | 522291 Consumer Lending | $47 million in average annual receipts |
| Consumer product safety commissions | 922190 Other Justice, Public Order, and Safety Activities | — |
| Consumer protection offices | 926110 Administration of General Economic Programs | — |
| Consumer-type electronic stores (e.g., radio, television, video camera) | 443112 Radio, Television, and Other Electronics Stores | — |
| Consumer-type electronic stores (e.g., televisions, computers, cameras) | 443142 Electronics Stores | $35 million in average annual receipts |
| Consumption meters (e.g., gas, water) manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Contact lens insurance, direct | 524128 Other Direct Insurance (except Life, Health, and Medical) Carriers | $47 million in average annual receipts |
| Contact lenses manufacturing | 339115 Ophthalmic Goods Manufacturing | 1,000 employees |
| Contact lenses merchant wholesalers | 423460 Ophthalmic Goods Merchant Wholesalers | 175 employees |
| Contacts, electrical (except carbon and graphite), manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Contacts, electrical, carbon and graphite, manufacturing | 335991 Carbon and Graphite Product Manufacturing | 900 employees |
| Container board stock manufacturing | 322130 Paperboard Mills | 1,250 employees |
| Container ship building | 336611 Ship Building and Repairing | 1,300 employees |
| Container trucking services, local | 484110 General Freight Trucking, Local | $34 million in average annual receipts |
| Container trucking services, long-distance (TL) | 484121 General Freight Trucking, Long-Distance, Truckload | $34 million in average annual receipts |
| Containers for packaging, bottling, and canning, glass, manufacturing | 327213 Glass Container Manufacturing | 1,250 employees |
| Containers, air cargo, light gauge metal, manufacturing | 332439 Other Metal Container Manufacturing | 600 employees |
| Containers, foil (except bags), manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Containers, industrial, merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Containers, light gauge metal (except cans), manufacturing | 332439 Other Metal Container Manufacturing | 600 employees |
| Containers, paper and disposable plastics, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Containers, wood, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Contemporary art museums | 712110 Museums | $34 million in average annual receipts |
| Contemporary dance companies | 711120 Dance Companies | $18 million in average annual receipts |
| Continuing care retirement communities | 623311 Continuing Care Retirement Communities | $34 million in average annual receipts |
| Contraceptive preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Contract services (except site preparation and related construction contractor activities) for oil and gas fields | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Contractors' associations | 813910 Business Associations | $15.5 million in average annual receipts |
| Contractors, cut and sew apparel | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Contractors, men's and boys', cut and sew apparel | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Contractors, women's, girls' and infants', cut and sew apparel | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Contrast media in-vivo diagnostic substances (e.g., iodine, barium) manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Control circuit devices, magnet and solid-state, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Control circuit relays, industrial, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Control equipment, electric, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Control panels, electric power distribution, manufacturing | 335313 Switchgear and Switchboard Apparatus Manufacturing | 1,250 employees |
| Control system (e.g., environmental, humidity, temperature) installation | 238210 Electrical Contractors and Other Wiring Installation Contractors | $19 million in average annual receipts |
| Control transformers manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Control valves, fluid power, manufacturing | 332912 Fluid Power Valve and Hose Fitting Manufacturing | 1,000 employees |
| Control valves, industrial-type, manufacturing | 332911 Industrial Valve Manufacturing | 750 employees |
| Controllers for process variables (e.g., electric, electronic, mechanical, pneumatic operation) manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Controllers' and comptrollers' offices, government | 921130 Public Finance Activities | — |
| Controlling equipment, street light, manufacturing | 334290 Other Communications Equipment Manufacturing | 800 employees |
| Controls and control accessories, industrial, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Controls for adjustable speed drives manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Controls, revolution and timing instruments, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Convalescent homes or convalescent hospitals (except psychiatric) | 623110 Nursing Care Facilities (Skilled Nursing Facilities) | $34 million in average annual receipts |
| Convalescent homes or hospitals for psychiatric patients | 623220 Residential Mental Health and Substance Abuse Facilities | $19 million in average annual receipts |
| Convalescent supply stores | 446199 All Other Health and Personal Care Stores | $8.5 million in average annual receipts |
| Convection ovens (including portable), household-type, manufacturing | 335220 Major Household Appliance Manufacturing | 1,500 employees |
| Convenience food stores | 445120 Convenience Stores | $32 million in average annual receipts |
| Convenience food with gasoline stations | 447110 Gasoline Stations with Convenience Stores | $32 million in average annual receipts |
| Convenience outlets, electric, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Convention and visitors bureaus | 561591 Convention and Visitors Bureaus | $25 million in average annual receipts |
| Convention bureaus | 561591 Convention and Visitors Bureaus | $25 million in average annual receipts |
| Convention center, no promotion of events, rental or leasing | 531120 Lessors of Nonresidential Buildings (except Miniwarehouses) | $34 million in average annual receipts |
| Convention managers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Convention organizers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Convention promoters | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Convention services | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Convents (except schools) | 813110 Religious Organizations | $13 million in average annual receipts |
| Converted paper (except stationery and office supplies) merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Converters, broadwoven piece goods | 313311 Broadwoven Fabric Finishing Mills | — |
| Converters, leather | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Converters, phase and rotary, electrical equipment, manufacturing | 335312 Motor and Generator Manufacturing | 1,250 employees |
| Converters, piece goods | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Convertible sofas (except futons) manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Convertible tops for automotive, truck, and bus, manufacturing | 336390 Other Motor Vehicle Parts Manufacturing | 1,000 employees |
| Converting textiles | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Converting textiles, broadwoven | 313311 Broadwoven Fabric Finishing Mills | — |
| Converting textiles, narrow woven | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Convertors, narrow woven piece goods | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Conveying equipment (except farm) merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Conveying equipment, farm, merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Conveyor belts, rubber, manufacturing | 326220 Rubber and Plastics Hoses and Belting Manufacturing | 800 employees |
| Conveyor system installation | 238290 Other Building Equipment Contractors | $22 million in average annual receipts |
| Conveyors, farm-type, manufacturing | 333922 Conveyor and Conveying Equipment Manufacturing | 500 employees |
| Cooked meats made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Cookie dough made from purchased flour | 311824 Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour | 850 employees |
| Cookie shops, on premise baking and carryout service | 722515 Snack and Nonalcoholic Beverage Bars | $22.5 million in average annual receipts |
| Cookies manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Cookies merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Cookies, filled, manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Cooking appliances (except convection, microwave ovens), household-type electric portable, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Cooking chocolate made from cacao beans | 311351 Chocolate and Confectionery Manufacturing from Cacao Beans | 1,250 employees |
| Cooking equipment (i.e., fryers, microwave ovens, ovens, ranges), commercial-type, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Cooking equipment, commercial, merchant wholesalers | 423440 Other Commercial Equipment Merchant Wholesalers | 100 employees |
| Cooking equipment, gas and electric, household-type, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Cooking oils merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Cooking schools | 611519 Other Technical and Trade Schools | $21 million in average annual receipts |
| Cooking utensils, cast iron, manufacturing | 331511 Iron Foundries | 1,000 employees |
| Cooking utensils, fabricated metal, manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Cooking utensils, glass and glass ceramic, made in glass making plants | 327212 Other Pressed and Blown Glass and Glassware Manufacturing | 1,250 employees |
| Cooking utensils, household-type, merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Cooking ware (e.g., stoneware, coarse earthenware, pottery), manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Cooking ware made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Cooking ware made in glass making plants | 327212 Other Pressed and Blown Glass and Glassware Manufacturing | 1,250 employees |
| Cooking ware, china, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Cooking ware, fine earthenware, manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Cooled air distribution | 221330 Steam and Air-Conditioning Supply | $30 million in average annual receipts |
| Coolers or ice chests, plastics (except foam), manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Coolers or ice chests, polystyrene foam, manufacturing | 326140 Polystyrene Foam Product Manufacturing | 1,000 employees |
| Coolers, refrigeration, manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Coolers, water, manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Cooling tower installation | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $19 million in average annual receipts |
| Cooling towers manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Cooperage manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Cooperage stock (e.g., heading, hoops, staves) manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Cooperage stock merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Cooperage stock mills | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Cooperative apartment for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Cooperative apartment managers' offices | 531311 Residential Property Managers | $12.5 million in average annual receipts |
| Cooperative apartment, construction general contractors | 236116 New Multifamily Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Cooperative hospital laundries (i.e., linen supply services) | 812331 Linen Supply | $40 million in average annual receipts |
| Cooperative life insurance organizations | 524113 Direct Life Insurance Carriers | $47 million in average annual receipts |
| Cooperative owners' associations | 813990 Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) | $13.5 million in average annual receipts |
| Coopered tubs manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Coordinate and contour measuring machines, machinists' precision tools, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Copier rental or leasing | 532420 Office Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Coping, wall, clay, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Copings, concrete, manufacturing | 327390 Other Concrete Product Manufacturing | 500 employees |
| Copper alloy castings (except die-castings), unfinished, manufacturing | 331529 Other Nonferrous Metal Foundries (except Die-Casting) | 500 employees |
| Copper alloys (e.g., brass, bronze) made from purchased metal or scrap | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper alloys made in primary copper smelting and refining mills | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Copper and copper-based shapes (e.g., cake, ingot, slag, wire bar) made from purchased metal or scrap | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper base pigments manufacturing | 325130 Synthetic Dye and Pigment Manufacturing | 1,050 employees |
| Copper beneficiating plants | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Copper chloride manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Copper cleaners manufacturing | 325612 Polish and Other Sanitation Good Manufacturing | 900 employees |
| Copper compounds, not specified elsewhere by process, manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Copper concentrate refining | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Copper die-casting foundries | 331523 Nonferrous Metal Die-Casting Foundries | 700 employees |
| Copper die-castings, unfinished, manufacturing | 331523 Nonferrous Metal Die-Casting Foundries | 700 employees |
| Copper foil made from purchased metal or scrap | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper foil not made in rolling mills | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Copper forgings made from purchased metals, unfinished | 332112 Nonferrous Forging | 950 employees |
| Copper foundries (except die-casting) | 331529 Other Nonferrous Metal Foundries (except Die-Casting) | 500 employees |
| Copper iodide manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Copper ore concentrates recovery | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Copper ore mine site development for own account | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Copper ores mining and/or beneficiating | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Copper powder, flakes, and paste made from purchased copper | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper products (except communication wire, energy wire) made by drawing purchased copper | 331421 Copper Rolling, Drawing, and Extruding | — |
| Copper products (except communication wire, energy wire) made by rolling, drawing, or extruding purchased copper | 331421 Copper Rolling, Drawing, and Extruding | — |
| Copper products (except communication wire, energy wire) made in integrated secondary smelting and extruding mills | 331421 Copper Rolling, Drawing, and Extruding | — |
| Copper products (except communication wire, energy wire) made in integrated secondary smelting mills and drawing plants | 331421 Copper Rolling, Drawing, and Extruding | — |
| Copper products made by drawing purchased copper | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper products made by rolling, drawing, or extruding purchased copper | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper products made in integrated secondary smelting and extruding mills | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper products made in integrated secondary smelting mills and drawing plants | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper roofing installation | 238160 Roofing Contractors | $19 million in average annual receipts |
| Copper secondary smelting and alloying | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper secondary smelting and refining from purchased metal or scrap | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Copper shapes (e.g., bar, billet, ingot, plate, sheet) made in primary copper smelting and refining mills | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Copper smelting and refining, primary | 331410 Nonferrous Metal (except Aluminum) Smelting and Refining | 1,000 employees |
| Copper sulfate manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Copper-water precipitates | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Copy centers (except combined with printing services) | 561439 Other Business Service Centers (including Copy Shops) | $26.5 million in average annual receipts |
| Copy shops (except combined with printing services) | 561439 Other Business Service Centers (including Copy Shops) | $26.5 million in average annual receipts |
| Copying machines merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Cord (except tire, wire) manufacturing | 314991 Rope, Cordage, and Twine Mills | — |
| Cord (except wire) manufacturing | 314994 Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 1,000 employees |
| Cord connectors, electric, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Cord for reinforcing rubber tires, industrial belting, and fuel cells manufacturing | 314994 Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 1,000 employees |
| Cord sets, flexible, made from purchased copper in wire drawing plants | 331420 Copper Rolling, Drawing, Extruding, and Alloying | 1,050 employees |
| Cord sets, flexible, made in aluminum wire drawing plants | 331318 Other Aluminum Rolling, Drawing, and Extruding | 750 employees |
| Cord sets, flexible, nonferrous metals (except aluminum, copper), made from purchased nonferrous metals (except aluminum, copper) in wire drawing plants | 331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding | 900 employees |
| Cordage (except wire) manufacturing | 314994 Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills | 1,000 employees |
| Cordage and rope (except wire) making machines manufacturing | 333249 Other Industrial Machinery Manufacturing | 500 employees |
| Cordage merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Cordite explosive materials manufacturing | 325920 Explosives Manufacturing | 750 employees |
| Cordless telephones (except cellular) manufacturing | 334210 Telephone Apparatus Manufacturing | 1,250 employees |
| Cords and braids, narrow woven, manufacturing | 313220 Narrow Fabric Mills and Schiffli Machine Embroidery | 550 employees |
| Corduroys weaving | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Core baking and mold drying ovens manufacturing | 333994 Industrial Process Furnace and Oven Manufacturing | 500 employees |
| Core cutting in oil and gas wells, on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Core drilling and test boring for construction | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Core drilling, exploration services, oil and gas field | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Core drills, underground mining-type, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Cores (i.e., all-fiber, nonfiber ends of any material), fiber, made from purchased paperboard | 322219 Other Paperboard Container Manufacturing | 1,000 employees |
| Cores, bullet (i.e., 30 mm. or less, 1.18 inch or less), manufacturing | 332992 Small Arms Ammunition Manufacturing | 1,300 employees |
| Cores, sand foundry, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Cork merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Cork products (except gaskets) manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Corks, bottle, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Corms farming | 111421 Nursery and Tree Production | $3.3 million in average annual receipts |
| Corn breakfast foods manufacturing | 311230 Breakfast Cereal Manufacturing | 1,300 employees |
| Corn chips and related corn snacks manufacturing | 311919 Other Snack Food Manufacturing | 1,250 employees |
| Corn chips and related corn snacks merchant wholesalers | 424450 Confectionery Merchant Wholesalers | 225 employees |
| Corn confections manufacturing | 311340 Nonchocolate Confectionery Manufacturing | 1,000 employees |
| Corn cribs, prefabricated, wood, manufacturing | 321992 Prefabricated Wood Building Manufacturing | 500 employees |
| Corn dextrin manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn drying | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Corn farming (except sweet corn), field and seed production | 111150 Corn Farming | $2.5 million in average annual receipts |
| Corn flour manufacturing | 311211 Flour Milling | 1,050 employees |
| Corn gluten feed manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn gluten meal manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn heads for combines manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Corn meal made in flour mills | 311211 Flour Milling | 1,050 employees |
| Corn oil cake and meal manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn oil made from purchased oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Corn oil mills | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn oil, crude and refined, made by wet milling corn | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn pickers and shellers manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Corn poppers, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Corn popping machinery (i.e., food manufacturing-type) manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Corn popping machines, commercial-type, manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Corn remover and bunion pad manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Corn shelling | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Corn starch manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn sweeteners (e.g., dextrose, fructose, glucose) made by wet milling corn | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Corn syrups made from purchased sweeteners | 311999 All Other Miscellaneous Food Manufacturing | 700 employees |
| Corn, malt, manufacturing | 311213 Malt Manufacturing | 500 employees |
| Corneal microscopes manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Corned meats made from purchases carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Corners, luggage, leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Cornets and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Cornices, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Cornices, wood, manufacturing | 321918 Other Millwork (including Flooring) | 500 employees |
| Cornish hen production | 112320 Broilers and Other Meat Type Chicken Production | $3.5 million in average annual receipts |
| Cornmeal, edible, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Cornwall stone mining and/or beneficiating | 212325 Clay and Ceramic and Refractory Minerals Mining | 500 employees |
| Coroners' offices | 923120 Administration of Public Health Programs | — |
| Corporate credit unions | 522130 Credit Unions | $850 million in assets |
| Corporate foundations, awarding grants | 813211 Grantmaking Foundations | $40 million in average annual receipts |
| Corporate identification (i.e., logo) design services | 541430 Graphic Design Services | $9 million in average annual receipts |
| Corporate law offices | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Corporate offices | 551114 Corporate, Subsidiary, and Regional Managing Offices | — |
| Corralling, drovers | 115210 Support Activities for Animal Production | $11 million in average annual receipts |
| Corrals, metal, manufacturing | 332323 Ornamental and Architectural Metal Work Manufacturing | 500 employees |
| Correction fluids (i.e., typewriter) manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Correctional boot camps | 922140 Correctional Institutions | — |
| Correctional facility operation on a contract or fee basis | 561210 Facilities Support Services | $47 million in average annual receipts |
| Correctional institutions | 922140 Correctional Institutions | — |
| Corrosion protection, underground pipeline and oil storage tank | 237120 Oil and Gas Pipeline and Related Structures Construction | $45 million in average annual receipts |
| Corrugated and solid fiber boxes made from purchased paper or paperboard | 322211 Corrugated and Solid Fiber Box Manufacturing | 1,250 employees |
| Corrugated and solid fiberboard pads made from purchased paper or paperboard | 322211 Corrugated and Solid Fiber Box Manufacturing | 1,250 employees |
| Corrugated metal roofing installation | 238160 Roofing Contractors | $19 million in average annual receipts |
| Corrugated paper made from purchased paper or paperboard | 322211 Corrugated and Solid Fiber Box Manufacturing | 1,250 employees |
| Corrugating iron or steel in cold rolling mills made from purchased iron or steel | 331221 Rolled Steel Shape Manufacturing | 1,000 employees |
| Corselets cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Corselets, 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 |
| Corselets, 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 | — |
| Corsets and allied garments (except surgical) cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Corsets and allied garments (except surgical), 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 |
| Corsets and allied garments (except surgical), women's, cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Corsets and allied garments (except surgical), 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 | — |
| Corsets, surgical, manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Cortisone, uncompounded, manufacturing | 325411 Medicinal and Botanical Manufacturing | 1,000 employees |
| Corundum mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Cosmetic bags (except metal) manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Cosmetic bags, precious metal, manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Cosmetic creams, lotions, and oils manufacturing | 325620 Toilet Preparation Manufacturing | 1,250 employees |
| Cosmetic kit assembling and packaging services | 561910 Packaging and Labeling Services | $19.5 million in average annual receipts |
| Cosmetics merchant wholesalers | 424210 Drugs and Druggists' Sundries Merchant Wholesalers | 250 employees |
| Cosmetics stores | 446120 Cosmetics, Beauty Supplies, and Perfume Stores | $30 million in average annual receipts |
| Cosmetology salons or shops | 812112 Beauty Salons | $9.5 million in average annual receipts |
| Cosmetology schools | 611511 Cosmetology and Barber Schools | $13 million in average annual receipts |
| Costume design services (except independent theatrical costume designers) | 541490 Other Specialized Design Services | $13.5 million in average annual receipts |
| Costume designers, independent theatrical | 711510 Independent Artists, Writers, and Performers | $9 million in average annual receipts |
| Costume jewelry manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Costume jewelry merchant wholesalers | 423940 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers | 125 employees |
| Costume jewelry stores | 448150 Clothing Accessories Stores | $29.5 million in average annual receipts |
| Costume rental | 53228 Other Consumer Goods Rental532281 Formal Wear and Costume Rental | —$25 million in average annual receipts |
| Costume stores (including theatrical) | 448190 Other Clothing Stores | $27.5 million in average annual receipts |
| Costumes (e.g., lodge, masquerade, theatrical) cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Costumes (e.g., lodge, masquerade, theatrical) cut and sewn from purchased fabric (except apparel contractors) | 315280 Other Cut and Sew Apparel Manufacturing | 750 employees |
| Costumes (e.g., lodge, masquerade, theatrical) women's, girls' and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Costumes (e.g., lodge, masquerade, theatrical), men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Cot springs, assembled, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Cots, metal household-type, manufacturing | 337124 Metal Household Furniture Manufacturing | 750 employees |
| Cots, wood household-type, manufacturing | 337122 Nonupholstered Wood Household Furniture Manufacturing | 750 employees |
| Cottage cheese manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Cottage construction general contractors | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Cottage for-sale builders | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Cottage rental or leasing | 531110 Lessors of Residential Buildings and Dwellings | $34 million in average annual receipts |
| Cottages, housekeeping | 721199 All Other Traveler Accommodation | $9 million in average annual receipts |
| Cotter pins, metal, manufacturing | 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 600 employees |
| Cotton (except raw) merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Cotton and cotton balls, absorbent, manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Cotton balers and presses manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Cotton battings (except nonwoven batting) manufacturing | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Cotton cordage spun yarns made from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Cotton fabrics, broadwoven, weaving | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Cotton fabrics, narrow woven weaving | 313220 Narrow Fabric Mills and Schiffli Machine Embroidery | 550 employees |
| Cotton farming, field and seed production | 111920 Cotton Farming | $3.3 million in average annual receipts |
| Cotton fiber paper stock manufacturing | 322121 Paper (except Newsprint) Mills | 1,250 employees |
| Cotton ginning | 115111 Cotton Ginning | $16 million in average annual receipts |
| Cotton ginning machinery manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Cotton picker and stripper harvesting machinery manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Cotton spun yarns made from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Cotton thread manufacturing | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Cotton tipped applicators manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Cotton, machine harvesting | 115113 Crop Harvesting, Primarily by Machine | $13.5 million in average annual receipts |
| Cotton, raw, merchant wholesalers | 424590 Other Farm Product Raw Material Merchant Wholesalers | 175 employees |
| Cottonseed farming | 111920 Cotton Farming | $3.3 million in average annual receipts |
| Cottonseed oil made from purchased oils | 311225 Fats and Oils Refining and Blending | 1,100 employees |
| Cottonseed oil, cake and meal, made in crushing mills | 311224 Soybean and Other Oilseed Processing | 1,250 employees |
| Couch springs, assembled, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Couches, upholstered, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Cough drops (except medicated) manufacturing | 311340 Nonchocolate Confectionery Manufacturing | 1,000 employees |
| Cough drops, medicated, manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Cough medicines manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Coulometric analyzers, industrial process-type, manufacturing | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 750 employees |
| Coulometric analyzers, laboratory-type, manufacturing | 334516 Analytical Laboratory Instrument Manufacturing | 1,000 employees |
| Coumarin manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Coumarone-indene resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Councils of Economic Advisers | 926110 Administration of General Economic Programs | — |
| Counseling services | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Counseling services, family planning | 621410 Family Planning Centers | $19 million in average annual receipts |
| Counselors' at law offices | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Counselors' at law private practices | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Count rate meters, nuclear radiation, manufacturing | 334519 Other Measuring and Controlling Device Manufacturing | 600 employees |
| Counter top, residential-type, installation | 238350 Finish Carpentry Contractors | $19 million in average annual receipts |
| Counter type registers manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Counter units (except refrigerated) manufacturing | 337215 Showcase, Partition, Shelving, and Locker Manufacturing | 500 employees |
| Counterbores (i.e., a machine tool accessory), metalworking, manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Counterbores and countersinking bits, woodworking, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Countermeasure sets (e.g., active countermeasures, jamming equipment) manufacturing | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | 1,350 employees |
| Counters (e.g., electrical, electronic, mechanical), totalizing, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Counters (i.e., shoe cut stock), leather, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Counters and display cases, refrigerated, manufacturing | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 1,250 employees |
| Counters, revolution, manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Countersinks (i.e., a machine tool accessory) manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Countertop and cabinet, metal (except residential-type), installation | 238390 Other Building Finishing Contractors | $19 million in average annual receipts |
| Countertops (except kitchen and bathroom), wood or plastics laminated on wood, manufacturing | 337215 Showcase, Partition, Shelving, and Locker Manufacturing | 500 employees |
| Countertops (i.e., kitchen, bathroom), wood or plastics laminated on wood, manufacturing | 337110 Wood Kitchen Cabinet and Countertop Manufacturing | 750 employees |
| Countertops, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Countertops, stone, manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Countertops, wood, manufacturing | 337110 Wood Kitchen Cabinet and Countertop Manufacturing | 750 employees |
| Counting devices manufacturing | 334514 Totalizing Fluid Meter and Counting Device Manufacturing | 850 employees |
| Country clubs | 713910 Golf Courses and Country Clubs | $19 million in average annual receipts |
| Country musical artists, independent | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| Country musical groups | 711130 Musical Groups and Artists | $15 million in average annual receipts |
| County commissioners | 921120 Legislative Bodies | — |
| County development agencies | 925120 Administration of Urban Planning and Community and Rural Development | — |
| County supervisors of education (except school boards) | 923110 Administration of Education Programs | — |
| County supervisors' and executives' offices | 921110 Executive Offices | — |
| Couplings, hose, metal (except fluid power), manufacturing | 332919 Other Metal Valve and Pipe Fitting Manufacturing | 750 employees |
| Couplings, mechanical power transmission, manufacturing | 333613 Mechanical Power Transmission Equipment Manufacturing | 750 employees |
| Couplings, pipe, made from purchased metal pipe | 332996 Fabricated Pipe and Pipe Fitting Manufacturing | 550 employees |
| Coupon direct distribution services | 541870 Advertising Material Distribution Services | $28.5 million in average annual receipts |
| Coupon processing services | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Coupon redemption services (i.e., clearinghouse) | 561990 All Other Support Services | $16.5 million in average annual receipts |
| Courier services (i.e., intercity network) (except establishments operating under a universal service obligation) | 492110 Couriers and Express Delivery Services | 1,500 employees |
| Court reporting schools | 611410 Business and Secretarial Schools | $20.5 million in average annual receipts |
| Court reporting services | 561492 Court Reporting and Stenotype Services | $19 million in average annual receipts |
| Courts of law, civilian (except American Indian or Alaska Native) | 922110 Courts | — |
| Courts, American Indian or Alaska Native | 921150 American Indian and Alaska Native Tribal Governments | — |
| Courts, civilian (except American Indian or Alaska Native) | 922110 Courts | — |
| Courts, military | 928110 National Security | — |
| Courts, small claims | 922110 Courts | — |
| Coveralls, work, cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Coveralls, work, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Coveralls, work, 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 |
| Coveralls, work, 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 |
| Coveralls, work, women's, girls', and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Coveralls, work, 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 | — |
| Covers (e.g., boat, swimming pool, truck) made from purchased fabrics | 314910 Textile Bag and Canvas Mills | 500 employees |
| Covers, annealing, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Covers, bottle and demijohn, willow, rattan, and reed, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Covers, floating, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Cowls, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Cowpea (except dry) farming, field and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Cowpea farming, dry, field and seed production | 111130 Dry Pea and Bean Farming | $2.8 million in average annual receipts |
| CPAs' (certified public accountants) offices | 541211 Offices of Certified Public Accountants | $26.5 million in average annual receipts |
| CPR (cardiac pulmonary resusitation) training and certification | 611699 All Other Miscellaneous Schools and Instruction | $16.5 million in average annual receipts |
| Crab traps made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Crabbing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Cracker making machinery manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Crackers (e.g., graham, soda) manufacturing | 311821 Cookie and Cracker Manufacturing | 1,250 employees |
| Cradle assembly machinery (i.e., wire making equipment) manufacturing | 333519 Rolling Mill and Other Metalworking Machinery Manufacturing | 500 employees |
| Cradles, wood, manufacturing | 337122 Nonupholstered Wood Household Furniture Manufacturing | 750 employees |
| Craft (except craft supply) stores | 453220 Gift, Novelty, and Souvenir Stores | $12 million in average annual receipts |
| Craft and hobby kits and sets manufacturing | 339930 Doll, Toy, and Game Manufacturing | 700 employees |
| Craft fair managers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Craft fair organizers | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Craft fair promoters | 561920 Convention and Trade Show Organizers | $20 million in average annual receipts |
| Craft kits merchant wholesalers | 423920 Toy and Hobby Goods and Supplies Merchant Wholesalers | 175 employees |
| Craft supply stores (except needlecraft) | 451120 Hobby, Toy, and Game Stores | $31 million in average annual receipts |
| Craft union apprenticeship training programs | 611513 Apprenticeship Training | $11.5 million in average annual receipts |
| Cranberry farming | 111334 Berry (except Strawberry) Farming | $3.8 million in average annual receipts |
| Crane and hoist controls, including metal mill, manufacturing | 335314 Relay and Industrial Control Manufacturing | 750 employees |
| Crane rental or leasing without operator | 532412 Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing | $40 million in average annual receipts |
| Crane rental with operator | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Cranes (except industrial) merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Cranes, construction-type, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Cranes, industrial truck, manufacturing | 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing | 900 employees |
| Cranes, industrial, merchant wholesalers | 423830 Industrial Machinery and Equipment Merchant Wholesalers | 100 employees |
| Cranes, mining, merchant wholesalers | 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers | 250 employees |
| Cranes, overhead traveling, manufacturing | 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | 1,250 employees |
| Crankcase additive preparations manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Crankshaft assemblies, automotive and truck gasoline engine, manufacturing | 336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 1,050 employees |
| Crankshaft grinding machines metal cutting type, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Crates (e.g., berry, butter, fruit, vegetable) made of wood, wirebound, manufacturing | 321920 Wood Container and Pallet Manufacturing | 500 employees |
| Crating goods for shipping | 488991 Packing and Crating | $34 million in average annual receipts |
| Crawfish production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Crawler tractor rental with operator | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Crayfish fishing | 114112 Shellfish Fishing | $14 million in average annual receipts |
| Crayons manufacturing | 339940 Office Supplies (except Paper) Manufacturing | 750 employees |
| Cream manufacturing | 311511 Fluid Milk Manufacturing | 1,150 employees |
| Cream merchant wholesalers | 424430 Dairy Product (except Dried or Canned) Merchant Wholesalers | 200 employees |
| Cream of tartar manufacturing | 325199 All Other Basic Organic Chemical Manufacturing | 1,250 employees |
| Cream separators, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Cream separators, industrial, manufacturing | 333241 Food Product Machinery Manufacturing | 500 employees |
| Cream stations merchant wholesalers | 424430 Dairy Product (except Dried or Canned) Merchant Wholesalers | 200 employees |
| Cream, dried and powdered, manufacturing | 311514 Dry, Condensed, and Evaporated Dairy Product Manufacturing | 1,000 employees |
| Creamery butter manufacturing | 311512 Creamery Butter Manufacturing | 750 employees |
| Creamery products (except canned) merchant wholesalers | 424430 Dairy Product (except Dried or Canned) Merchant Wholesalers | 200 employees |
| Creamery products, canned, merchant wholesalers | 424490 Other Grocery and Related Products Merchant Wholesalers | 250 employees |
| Crease resistant finishing of broadwoven fabric | 313311 Broadwoven Fabric Finishing Mills | — |
| Crease resistant finishing of fabrics | 313310 Textile and Fabric Finishing Mills | 1,000 employees |
| Crease resistant finishing of fabrics (except broadwoven) | 313312 Textile and Fabric Finishing (except Broadwoven Fabric) Mills | — |
| Credit agencies | 561450 Credit Bureaus | $41 million in average annual receipts |
| Credit and identification card imprinting and embossing | 323111 Commercial Printing (except Screen and Books) | 650 employees |
| Credit and identification card stock, plastics, manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Credit and other financial responsibility insurance carriers, direct | 524126 Direct Property and Casualty Insurance Carriers | 1,500 employees |
| Credit bureaus | 561450 Credit Bureaus | $41 million in average annual receipts |
| Credit card banks | 522210 Credit Card Issuing | $850 million in assets |
| Credit card issuing | 522210 Credit Card Issuing | $850 million in assets |
| Credit card notification services (i.e., lost or stolen card reporting) | 812990 All Other Personal Services | $15 million in average annual receipts |
| Credit card processing services | 522320 Financial Transactions Processing, Reserve, and Clearinghouse Activities | $47 million in average annual receipts |
| Credit investigation services | 561450 Credit Bureaus | $41 million in average annual receipts |
| Credit life insurance carriers, direct | 524113 Direct Life Insurance Carriers | $47 million in average annual receipts |
| Credit rating services | 561450 Credit Bureaus | $41 million in average annual receipts |
| Credit repair (i.e., counseling) services, consumer | 541990 All Other Professional, Scientific, and Technical Services | $19.5 million in average annual receipts |
| Credit reporting bureaus | 561450 Credit Bureaus | $41 million in average annual receipts |
| Credit unions | 522130 Credit Unions | $850 million in assets |
| Cremating ovens manufacturing | 333999 All Other Miscellaneous General Purpose Machinery Manufacturing | 500 employees |
| Crematories (except combined with funeral homes) | 812220 Cemeteries and Crematories | $25 million in average annual receipts |
| Crenshaw melon farming, field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Creosote made by distillation of coal tar | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Creosote made by distillation of wood tar | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Creosoting of wood | 321114 Wood Preservation | 550 employees |
| Crepe paper made from purchased paper | 322299 All Other Converted Paper Product Manufacturing | 500 employees |
| Cresol resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Cresol-furfural resins manufacturing | 325211 Plastics Material and Resin Manufacturing | 1,250 employees |
| Cresols made by distillation of coal tar | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cresylic acids made from refined petroleum or natural gas | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Crew leaders, farm labor | 115115 Farm Labor Contractors and Crew Leaders | $19 million in average annual receipts |
| Crew socks knitting or knitting and finishing | 315110 Hosiery and Sock Mills | 750 employees |
| Cribbing (i.e., shore protection), construction | 237990 Other Heavy and Civil Engineering Construction | $45 million in average annual receipts |
| Cribs (i.e., baby beds), metal, manufacturing | 337124 Metal Household Furniture Manufacturing | 750 employees |
| Cribs (i.e., baby beds), wood, manufacturing | 337122 Nonupholstered Wood Household Furniture Manufacturing | 750 employees |
| Cricket production | 112990 All Other Animal Production | $2.8 million in average annual receipts |
| Criminal investigation offices, government | 922120 Police Protection | — |
| Criminal justice statistics centers, government | 922190 Other Justice, Public Order, and Safety Activities | — |
| Criminal law offices | 541110 Offices of Lawyers | $15.5 million in average annual receipts |
| Crimson cloves seed farming | 111998 All Other Miscellaneous Crop Farming | $2.5 million in average annual receipts |
| Crisis intervention centers | 624190 Other Individual and Family Services | $16 million in average annual receipts |
| Croaker fishing | 114111 Finfish Fishing | $25 million in average annual receipts |
| Crochet spun yarns (e.g., cotton, manmade fiber, silk, wool) made from purchased fiber | 313110 Fiber, Yarn, and Thread Mills | 1,250 employees |
| Crochet ware made from purchased materials | 314999 All Other Miscellaneous Textile Product Mills | 550 employees |
| Crock pots, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Crockery manufacturing | 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing | 1,000 employees |
| Croissants, baking, made in commercial bakeries | 311812 Commercial Bakeries | 1,000 employees |
| Crop cleaning | 115114 Postharvest Crop Activities (except Cotton Ginning) | $34 million in average annual receipts |
| Crop driers manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Crop dusting | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Crop insurance carrier, direct | 524126 Direct Property and Casualty Insurance Carriers | 1,500 employees |
| Crop preparation machinery (e.g., cleaning, conditioning, drying) merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Crop spraying | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Crops, riding, manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Croquet sets manufacturing | 339920 Sporting and Athletic Goods Manufacturing | 750 employees |
| Cross country skiing facilities without accommodations | 713920 Skiing Facilities | $35 million in average annual receipts |
| Cross valves, industrial-type, manufacturing | 332911 Industrial Valve Manufacturing | 750 employees |
| Crossties, treating | 321114 Wood Preservation | 550 employees |
| Croutons and bread crumbs made in commercial bakeries | 311812 Commercial Bakeries | 1,000 employees |
| Crowns and closures, metal, merchant wholesalers | 423840 Industrial Supplies Merchant Wholesalers | 125 employees |
| Crowns, metal (e.g., bottle, can), stamping | 332119 Metal Crown, Closure, and Other Metal Stamping (except Automotive) | 500 employees |
| CRT (cathode ray tube) manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| Crucibles, fire clay, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Crucibles, graphite, magnesite, chrome, silica, or other nonclay materials, manufacturing | 327120 Clay Building Material and Refractories Manufacturing | 750 employees |
| Crude corn oil manufacturing | 311221 Wet Corn Milling and Starch Manufacturing | 1,300 employees |
| Crude oil merchant wholesalers (except bulk stations, terminals) | 424720 Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals) | 200 employees |
| Crude oil pipeline transportation | 486110 Pipeline Transportation of Crude Oil | 1,500 employees |
| Crude oil refining | 324110 Petroleum Refineries | 1,500 employees |
| Crude oil terminals | 424710 Petroleum Bulk Stations and Terminals | 225 employees |
| Crude petroleum from oil sand | 211120 Crude Petroleum Extraction | 1,250 employees |
| Crude petroleum from oil shale | 211120 Crude Petroleum Extraction | 1,250 employees |
| Crude petroleum production | 211120 Crude Petroleum Extraction | 1,250 employees |
| Crude petroleum refineries | 324110 Petroleum Refineries | 1,500 employees |
| Crude rubber merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Cruise control mechanisms, electronic, automotive, truck, and bus, manufacturing | 336320 Motor Vehicle Electrical and Electronic Equipment Manufacturing | 1,000 employees |
| Cruise lines (i.e., deep sea passenger transportation to and from domestic ports, including Puerto Rico) | 483114 Coastal and Great Lakes Passenger Transportation | 550 employees |
| Cruise lines (i.e., deep sea passenger transportation to or from foreign ports) | 483112 Deep Sea Passenger Transportation | 1,500 employees |
| Cruise ship ticket offices | 561599 All Other Travel Arrangement and Reservation Services | $32.5 million in average annual receipts |
| Cruises, gambling | 713210 Casinos (except Casino Hotels) | $34 million in average annual receipts |
| Cruising timber | 115310 Support Activities for Forestry | $11.5 million in average annual receipts |
| Crullers (except frozen) made in commercial bakeries | 311812 Commercial Bakeries | 1,000 employees |
| Crullers, frozen, made in a commercial bakery | 311813 Frozen Cakes, Pies, and Other Pastries Manufacturing | 750 employees |
| Crushed stone merchant wholesalers | 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers | 150 employees |
| Crushing machinery, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Crushing machinery, stationary, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Crushing plants, bituminous coal | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Crushing, pulverizing, and screening machinery, portable, manufacturing | 333120 Construction Machinery Manufacturing | 1,250 employees |
| Crustacean production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Crutches and walkers manufacturing | 339113 Surgical Appliance and Supplies Manufacturing | 800 employees |
| Crutches merchant wholesalers | 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 200 employees |
| Crutches, invalid, rental | 532283 Home Health Equipment Rental | $41 million in average annual receipts |
| Cryogenic tanks, heavy gauge metal, manufacturing | 332420 Metal Tank (Heavy Gauge) Manufacturing | 750 employees |
| Cryogenic treating metals for the trade | 332811 Metal Heat Treating | 750 employees |
| Cryolite mining and/or beneficiating | 212399 All Other Nonmetallic Mineral Mining | 500 employees |
| Crystallized fruits and fruit peel manufacturing | 311340 Nonchocolate Confectionery Manufacturing | 1,000 employees |
| Crystals and crystal assemblies, electronic, manufacturing | 334419 Other Electronic Component Manufacturing | 750 employees |
| CT-SCAN (computer tomography) centers | 621512 Diagnostic Imaging Centers | $19 million in average annual receipts |
| CT/CAT (computerized axial tomography) scanners manufacturing | 334517 Irradiation Apparatus Manufacturing | 1,200 employees |
| Cubicles (i.e., electric switchboard equipment) manufacturing | 335313 Switchgear and Switchboard Apparatus Manufacturing | 1,250 employees |
| Cucumber farming (except under cover), field, bedding plant and seed production | 111219 Other Vegetable (except Potato) and Melon Farming | $3.8 million in average annual receipts |
| Cucumber farming, grown under cover | 111419 Other Food Crops Grown Under Cover | $4.5 million in average annual receipts |
| Cuff links (except precious) manufacturing | 339993 Fastener, Button, Needle, and Pin Manufacturing | 750 employees |
| Cuff links, precious metal, manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Cuffs, leg, iron, manufacturing | 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing | 750 employees |
| Culinary arts schools | 611519 Other Technical and Trade Schools | $21 million in average annual receipts |
| Cull hen production | 112310 Chicken Egg Production | $19 million in average annual receipts |
| Culm bank recovery, anthracite (except on a contract basis) | 212113 Anthracite Mining | 250 employees |
| Culm bank recovery, anthracite, on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Culm bank recovery, bituminous coal or lignite (except on a contract basis) | 212111 Bituminous Coal and Lignite Surface Mining | 1,250 employees |
| Culm bank recovery, coal, on a contract basis | 213113 Support Activities for Coal Mining | $27.5 million in average annual receipts |
| Culottes cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Culottes, 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 |
| Culottes, women's, girls' and infants', cut and sew apparel contractors | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Culottes, 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 | — |
| Cultivated florist greens growing | 111422 Floriculture Production | $3.8 million in average annual receipts |
| Cultivating machinery and equipment merchant wholesalers | 423820 Farm and Garden Machinery and Equipment Merchant Wholesalers | 125 employees |
| Cultivation services | 115112 Soil Preparation, Planting, and Cultivating | $9.5 million in average annual receipts |
| Cultivators, farm-type, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Cultivators, powered, lawn and garden-type, manufacturing | 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing | 1,500 employees |
| Cultural and arts development support program administration | 926110 Administration of General Economic Programs | — |
| Culture media manufacturing | 325414 Biological Product (except Diagnostic) Manufacturing | 1,250 employees |
| Cultured marble plumbing fixtures manufacturing | 326191 Plastics Plumbing Fixture Manufacturing | 750 employees |
| Cultured marble products (except plumbing fixtures) manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Cultured pearl production, farm raising | 112512 Shellfish Farming | $3.8 million in average annual receipts |
| Cultured stone products (except plumbing fixtures) manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Culvert pipe, concrete, manufacturing | 327332 Concrete Pipe Manufacturing | 750 employees |
| Culvert, concrete, residential and commercial paved area | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Culverts, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Culverts, highway, road and street, construction | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Culverts, sheet metal (except stampings), manufacturing | 332322 Sheet Metal Work Manufacturing | 500 employees |
| Cumene made from refined petroleum or liquid hydrocarbons | 325110 Petrochemical Manufacturing | 1,300 employees |
| Cumene made in petroleum refineries | 324110 Petroleum Refineries | 1,500 employees |
| Cummerbunds cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Cummerbunds cut and sewn from purchased fabric (except apparel contractors) | 315990 Apparel Accessories and Other Apparel Manufacturing | 600 employees |
| Cummerbunds, men's and boys', cut and sew apparel contractors | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Cupolas, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Cuprite mining and/or beneficiating | 212230 Copper, Nickel, Lead, and Zinc Mining | 1,400 employees |
| Cups, molded pulp, manufacturing | 322299 All Other Converted Paper Product Manufacturing | 500 employees |
| Cups, paper and disposable plastics, merchant wholesalers | 424130 Industrial and Personal Service Paper Merchant Wholesalers | 150 employees |
| Cups, plastics (except disposable), merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Cups, plastics (except foam), manufacturing | 326199 All Other Plastics Product Manufacturing | 750 employees |
| Cups, polystyrene foam, manufacturing | 326140 Polystyrene Foam Product Manufacturing | 1,000 employees |
| Curb and gutter construction, residential and commercial driveway and parking area, concrete | 238990 All Other Specialty Trade Contractors | $19 million in average annual receipts |
| Curbing, granite and stone, manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Curbs and street gutters, highway, road and street, construction | 237310 Highway, Street, and Bridge Construction | $45 million in average annual receipts |
| Curds, cheese, made in a cheese plant, manufacturing | 311513 Cheese Manufacturing | 1,250 employees |
| Cured fish merchant wholesalers | 424460 Fish and Seafood Merchant Wholesalers | 100 employees |
| Cured hides and skins produced in slaughtering plants | 311611 Animal (except Poultry) Slaughtering | 1,150 employees |
| Cured meats (e.g., brined, dried, and salted) made from purchased carcasses | 311612 Meat Processed from Carcasses | 1,000 employees |
| Curers, tobacco, manufacturing | 333111 Farm Machinery and Equipment Manufacturing | 1,250 employees |
| Curing fish and seafood | 311710 Seafood Product Preparation and Packaging | 750 employees |
| Curio shops | 453220 Gift, Novelty, and Souvenir Stores | $12 million in average annual receipts |
| Curios merchant wholesalers | 424990 Other Miscellaneous Nondurable Goods Merchant Wholesalers | 100 employees |
| Curlers, hair, rubber, manufacturing | 326299 All Other Rubber Product Manufacturing | 650 employees |
| Curling facilities | 713990 All Other Amusement and Recreation Industries | $9 million in average annual receipts |
| Curling irons, electric, merchant wholesalers | 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers | 225 employees |
| Curling irons, household-type electric, manufacturing | 335210 Small Electrical Appliance Manufacturing | 1,500 employees |
| Currant farming | 111334 Berry (except Strawberry) Farming | $3.8 million in average annual receipts |
| Currency counting machinery manufacturing | 333318 Other Commercial and Service Industry Machinery Manufacturing | 1,000 employees |
| Currency handling machines merchant wholesalers | 423420 Office Equipment Merchant Wholesalers | 200 employees |
| Current limiting reactors, electrical, manufacturing | 335311 Power, Distribution, and Specialty Transformer Manufacturing | 800 employees |
| Current measuring equipment manufacturing | 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 750 employees |
| Current taps, attachment plug and screw shell types, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Current-carrying wiring devices merchant wholesalers | 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers | 200 employees |
| Currying furs | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Currying leather | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Curtain and drapery stores, packaged | 442291 Window Treatment Stores | $10 million in average annual receipts |
| Curtain cleaning services | 812320 Drycleaning and Laundry Services (except Coin-Operated) | $8 million in average annual receipts |
| Curtain or drapery fixtures (e.g., poles, rods, rollers) manufacturing | 337920 Blind and Shade Manufacturing | 1,000 employees |
| Curtain rods and fittings manufacturing | 337920 Blind and Shade Manufacturing | 1,000 employees |
| Curtain stretchers, wood, manufacturing | 321999 All Other Miscellaneous Wood Product Manufacturing | 500 employees |
| Curtain wall, glass, installation | 238150 Glass and Glazing Contractors | $19 million in average annual receipts |
| Curtain wall, metal, installation | 238190 Other Foundation, Structure, and Building Exterior Contractors | $19 million in average annual receipts |
| Curtain wall, metal, manufacturing | 332323 Ornamental and Architectural Metal Work Manufacturing | 500 employees |
| Curtain wall, precast concrete, installation | 238120 Structural Steel and Precast Concrete Contractors | $19 million in average annual receipts |
| Curtains and draperies made in broadwoven fabric mills | 313210 Broadwoven Fabric Mills | 1,000 employees |
| Curtains and draperies, window, made from purchased fabrics | 314120 Curtain and Linen Mills | 750 employees |
| Curtains made in lace mills | 313240 Knit Fabric Mills | 500 employees |
| Curtains made in warp knitting mills | 313249 Other Knit Fabric and Lace Mills | — |
| Curtains made in warp or weft knitting mills | 313240 Knit Fabric Mills | 500 employees |
| Curtains made in weft knitting mills | 313241 Weft Knit Fabric Mills | — |
| Curtains merchant wholesalers | 423220 Home Furnishing Merchant Wholesalers | 100 employees |
| Cushion springs, assembled, manufacturing | 337121 Upholstered Household Furniture Manufacturing | 1,000 employees |
| Cushions (except carpet, springs) made from purchased fabrics | 314120 Curtain and Linen Mills | 750 employees |
| Cushions, carpet and rug, urethane and other foam plastics (except polystrene), manufacturing | 326150 Urethane and Other Foam Product (except Polystyrene) Manufacturing | 750 employees |
| Custard, frozen, manufacturing | 311520 Ice Cream and Frozen Dessert Manufacturing | 1,000 employees |
| Custodial services | 561720 Janitorial Services | $22 million in average annual receipts |
| Custom architectural millwork and fixtures, manufacturing on a job shop basis | 337212 Custom Architectural Woodwork and Millwork Manufacturing | 500 employees |
| Custom builders (except for-sale), multifamily buildings | 236116 New Multifamily Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Custom builders (except for-sale), single-family home | 236115 New Single-Family Housing Construction (except For-Sale Builders) | $45 million in average annual receipts |
| Custom builders, for-sale builders, multifamily buildings | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Custom builders, for-sale builders, single-family home | 236117 New Housing For-Sale Builders | $45 million in average annual receipts |
| Custom compounding (i.e., blending and mixing) of purchased plastics resins | 325991 Custom Compounding of Purchased Resins | 600 employees |
| Custom design interiors (i.e., coordinated furniture, architectural woodwork, fixtures), manufacturing | 337212 Custom Architectural Woodwork and Millwork Manufacturing | 500 employees |
| Custom milling of animal feed | 311119 Other Animal Food Manufacturing | 650 employees |
| Custom picture frame shops | 442299 All Other Home Furnishings Stores | $29.5 million in average annual receipts |
| Custom roll forming machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Custom roll forming metal products | 332114 Custom Roll Forming | 600 employees |
| Custom sawmills | 321113 Sawmills | 550 employees |
| Custom slaughtering | 311611 Animal (except Poultry) Slaughtering | 1,150 employees |
| Custom tailors, men's and boys' dress shirts, cut and sewn from purchased fabric | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Custom tailors, men's and boys' suits, cut and sewn from purchased fabric | 315220 Men's and Boys' Cut and Sew Apparel Manufacturing | 750 employees |
| Custom tailors, women's and girls' dresses cut and sewn from purchased fabric (except apparel contractors) | 315240 Women's, Girls', and Infants' Cut and Sew Apparel Manufacturing | 750 employees |
| Custom tailors, women's, misses' and girls' dresses cut and sewn from purchased fabric (except apparel contractors) | 315233 Women's and Girls' Cut and Sew Dress Manufacturing | — |
| Customer service call centers | 561422 Telemarketing Bureaus and Other Contact Centers | $25.5 million in average annual receipts |
| Customer service management consulting services | 541613 Marketing Consulting Services | $19 million in average annual receipts |
| Customs brokers | 488510 Freight Transportation Arrangement | $20 million in average annual receipts |
| Customs bureaus | 921130 Public Finance Activities | — |
| Customs consulting services | 541614 Process, Physical Distribution, and Logistics Consulting Services | $20 million in average annual receipts |
| Cut and engraved glassware made from purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Cut and sew apparel contractors | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Cut and sew apparel contractors, men's and boys' | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Cut and sew apparel contractors, women's, girls', and infants' | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Cut flower growing | 111422 Floriculture Production | $3.8 million in average annual receipts |
| Cut rose growing | 111422 Floriculture Production | $3.8 million in average annual receipts |
| Cut stock for boots and shoes manufacturing | 316998 All Other Leather Good and Allied Product Manufacturing | 500 employees |
| Cut stock manufacturing | 321912 Cut Stock, Resawing Lumber, and Planing | 500 employees |
| Cut stone bases (e.g., desk sets pedestals, lamps, plaques and similar small particles) manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Cut stone products (e.g., blocks, statuary) manufacturing | 327991 Cut Stone and Stone Product Manufacturing | 500 employees |
| Cut-off machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Cutlery (e.g., knives, scissors) sharpening, household-type | 811490 Other Personal and Household Goods Repair and Maintenance | $9 million in average annual receipts |
| Cutlery merchant wholesalers | 423710 Hardware Merchant Wholesalers | 150 employees |
| Cutlery, nonprecious and precious plated metal, manufacturing | 332215 Metal Kitchen Cookware, Utensil, Cutlery, and Flatware (except Precious) Manufacturing | 1,000 employees |
| Cutlery, precious metal (except precious plated), manufacturing | 339910 Jewelry and Silverware Manufacturing | 700 employees |
| Cutouts, switch and fuse, manufacturing | 335931 Current-Carrying Wiring Device Manufacturing | 600 employees |
| Cutters, coal, manufacturing | 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| Cutters, glass, manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Cutters, metal milling, manufacturing | 333515 Cutting Tool and Machine Tool Accessory Manufacturing | 500 employees |
| Cutting and transporting timber | 113310 Logging | 500 employees |
| Cutting cores in oil and gas wells on a contract basis | 213112 Support Activities for Oil and Gas Operations | $47 million in average annual receipts |
| Cutting dies (e.g., paper, leather, textile) manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Cutting dies (except metal cutting) manufacturing | 332216 Saw Blade and Handtool Manufacturing | 750 employees |
| Cutting dies, metalworking, manufacturing | 333514 Special Die and Tool, Die Set, Jig, and Fixture Manufacturing | 500 employees |
| Cutting fabric owned by others for apparel | 315210 Cut and Sew Apparel Contractors | 750 employees |
| Cutting fabric owned by others for men's and boys' apparel | 315211 Men's and Boys' Cut and Sew Apparel Contractors | — |
| Cutting fabric owned by others for women's, girls', and infants' apparel | 315212 Women's, Girls', and Infants' Cut and Sew Apparel Contractors | — |
| Cutting instruments, dental, manufacturing | 339114 Dental Equipment and Supplies Manufacturing | 750 employees |
| Cutting machines, metalworking, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Cutting new rights of way | 238910 Site Preparation Contractors | $19 million in average annual receipts |
| Cutting of leather | 316110 Leather and Hide Tanning and Finishing | 800 employees |
| Cutting of purchased carcasses (except boxed meat cut on an assembly-line basis) merchant wholesalers | 424470 Meat and Meat Product Merchant Wholesalers | 150 employees |
| Cutting oils made from refined petroleum | 324191 Petroleum Lubricating Oil and Grease Manufacturing | 900 employees |
| Cutting oils, synthetic, manufacturing | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | 650 employees |
| Cutting timber | 113310 Logging | 500 employees |
| Cutting, engraving, etching, painting or polishing purchased glass | 327215 Glass Product Manufacturing Made of Purchased Glass | 1,000 employees |
| Cuttings farming | 111422 Floriculture Production | $3.8 million in average annual receipts |
| Cyanides manufacturing | 325180 Other Basic Inorganic Chemical Manufacturing | 1,000 employees |
| Cyanite mining and/or beneficiating | 212325 Clay and Ceramic and Refractory Minerals Mining | 500 employees |
| Cycle condensate production | 211130 Natural Gas Extraction | 1,250 employees |
| Cyclic aromatic hydrocarbons made from refined petroleum or liquid hydrocarbons | 325110 Petrochemical Manufacturing | 1,300 employees |
| Cyclic aromatic hydrocarbons made in petroleum refineries | 324110 Petroleum Refineries | 1,500 employees |
| Cyclic crudes and intermediates merchant wholesalers | 424690 Other Chemical and Allied Products Merchant Wholesalers | 175 employees |
| Cyclic crudes made by distillation of coal tar | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cyclo rubber, synthetic, manufacturing | 325212 Synthetic Rubber Manufacturing | 1,000 employees |
| Cyclohexane manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cyclones, industrial, fabricated metal plate work, manufacturing | 332313 Plate Work Manufacturing | 750 employees |
| Cyclopentane made from refined petroleum or natural gas | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cyclopropane made from refined petroleum or natural gas | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cyclopropane medicinal preparations manufacturing | 325412 Pharmaceutical Preparation Manufacturing | 1,300 employees |
| Cycloterpenes manufacturing | 325194 Cyclic Crude, Intermediate, and Gum and Wood Chemical Manufacturing | 1,250 employees |
| Cyclotrons manufacturing | 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing | 600 employees |
| Cylinder boring machines metal cutting type, manufacturing | 333517 Machine Tool Manufacturing | 500 employees |
| Cylinder heads, automotive and truck gasoline engine, manufacturing | 336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing | 1,050 employees |
| Cylinder pipe, prestressed concrete, manufacturing | 327332 Concrete Pipe Manufacturing | 750 employees |
| Cylinder wire cloth made from purchased wire | 332618 Other Fabricated Wire Product Manufacturing | 500 employees |
| Cylinders and clips, gun (i.e., more than 30 mm., more than 1.18 inch), manufacturing | 332995 Other Ordnance and Accessories Manufacturing | — |
| Cylinders and clips, gun, manufacturing | 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing | 1,000 employees |
| Cylinders, fluid power, manufacturing | 333995 Fluid Power Cylinder and Actuator Manufacturing | 800 employees |
| Cylinders, master brake (new and rebuilt), manufacturing | 336340 Motor Vehicle Brake System Manufacturing | 1,250 employees |
| Cylinders, pressure, heavy gauge metal, manufacturing | 332420 Metal Tank (Heavy Gauge) Manufacturing | 750 employees |
| Cylindrical connectors, electronic, manufacturing | 334417 Electronic Connector Manufacturing | 1,000 employees |
| Cylindrical roller bearings manufacturing | 332991 Ball and Roller Bearing Manufacturing | 1,250 employees |
| Cymbals and parts manufacturing | 339992 Musical Instrument Manufacturing | 1,000 employees |
| Cystoscopes (except electromedical) manufacturing | 339112 Surgical and Medical Instrument Manufacturing | 1,000 employees |
| Cystoscopes, electromedical, manufacturing | 334510 Electromedical and Electrotherapeutic Apparatus Manufacturing | 1,250 employees |
| Cytology and histology in-vitro diagnostic substances manufacturing | 325413 In-Vitro Diagnostic Substance Manufacturing | 1,250 employees |
| Cytology health laboratories | 621511 Medical Laboratories | $41.5 million in average annual receipts |
Business activities are the U.S. Census Bureau's illustrative examples for each NAICS code, size standards the SBA's. An activity Census lists under a retired code and a code in use names only the code in use. Search NAICS codes
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