| SIC code | Key Words [关键词] | |
| 1 | AGRICULTURAL PRODUCTION-CROPS | |
| 11 | Cash Grains | |
| 111 | Wheat | |
| 112 | Rice | |
| 115 | Corn | |
| 116 | Soybeans | |
| 119 | Cash grains, nec | |
| 13 | Field Crops, Except Cash Grains | |
| 131 | Cotton | |
| 132 | Tobacco | |
| 134 | Irish potatoes | |
| 139 | Field crops, except cash grains, nec | |
| 161 | Vegetables and melons | |
| 17 | Fruits and Tree Nuts | |
| 172 | Grapes | |
| 173 | Tree nuts | |
| 174 | Citrus fruits | |
| 175 | Deciduous tree fruits | |
| 179 | Fruits and tree nuts, nec | |
| 18 | Horticultural Specialties | |
| 181 | Ornamental nursery products | |
| 182 | Food crops grown under cover | |
| 191 | General farms, primarily crop | |
| 2 | AGRICULTURAL PRODUCTION-LIVESTOCK | |
| 211 | Beef cattle feedlots | |
| 213 | Hogs | |
| 214 | Sheep and goats | |
| 241 | Dairy farms | |
| 25 | Poultry and Eggs | |
| 251 | Broiler, fryer, and roaster chickens | |
| 254 | Poultry hatcheries | |
| 259 | Poultry and eggs, nec | |
| 271 | Fur-bearing animals and rabbits | |
| 273 | Animal aquaculture | |
| 279 | Animal specialties, nec | |
| 291 | General farms, primarily animal | |
| 711 | Soil preparation services | |
| 721 | Crop planting and protecting | |
| 724 | Cotton ginning | |
| 75 | Animal Services, Except Veterinary | |
| 751 | Livestock services, exc. veterinary | |
| 781 | Landscape counseling and planning | |
| 782 | Lawn and garden services | |
| 8 | FORESTRY | |
| 81 | Timber Tracts | |
| 831 | Forest products | |
| 9 | FISHING, HUNTING, AND TRAPPING | |
| 91 | Commercial Fishing | |
| 919 | Miscellaneous marine products | |
| 92 | Fish Hatcheries and Preserves | |
| 921 | Fish hatcheries and preserves | |
| 10 | METAL MINING | |
| 1011 | Iron ores | |
| 102 | Copper Ores | |
| 1021 | Copper ores | |
| 1031 | Lead and zinc ores | |
| 1061 | Ferroalloy ores, except vanadium | |
| 1081 | Metal mining services | |
| 1094 | Uranium-radium-vanadium ores | |
| 1099 | Metal ores, nec | |
| 12 | COAL MINING | |
| 122 | Bituminous Coal and Lignite Mining | |
| 1221 | Bituminous coal and lignite-surface | |
| 1241 | Coal mining services | |
| 1311 | Crude petroleum and natural gas | |
| 1321 | Natural gas liquids | |
| 1381 | Drilling oil and gas wells | |
| 1382 | Oil and gas exploration services | |
| 14 | NONMETALLIC MINERALS, EXCEPT FUELS | |
| 141 | Dimension Stone | |
| 1411 | Dimension stone | |
| 142 | Crushed and Broken Stone | |
| 1442 | Construction sand and gravel | |
| 1446 | Industrial sand | |
| 1455 | Kaolin and ball clay | |
| 1459 | Clay and related minerals, nec | |
| 147 | Chemical and Fertilizer Minerals | |
| 1474 | Potash, soda, and borate minerals | |
| 1475 | Phosphate rock | |
| 1479 | Chemical and fertilizer mining, nec | |
| 1499 | Miscellaneous nonmetallic minerals | |
| 15 | GENERAL BUILDING CONTRACTORS | |
| 152 | Residential Building Construction | |
| 1522 | Residential construction, nec | |
| 1541 | Industrial buildings and warehouses | |
| 1542 | Nonresidential construction, nec | |
| 16 | HEAVY CONSTRUCTION, EX. BUILDING | |
| 1611 | Highway and street construction | |
| 1622 | Bridge, Tunnel, and Elevated highway | |
| 1623 | Water, sewer, and utility lines | |
| 1629 | Heavy construction, nec | |
| 1711 | Plumbing, heating, air-conditioning | |
| 1731 | Electrical work | |
| 1742 | Plastering, drywall, and insulation | |
| 1743 | Terrazzo,tile, marble,mosaic work | |
| 179 | Misc. Special Trade Contractors | |
| 1791 | Structural steel erection | |
| 1794 | Excavation work | |
| 1796 | Installing building equipment, nec | |
| 1799 | Special trade contractors, nec | |
| 20 | FOOD AND KINDRED PRODUCTS | |
| 201 | Meat Products | |
| 2011 | Meat packing plants | |
| 2013 | Sausages and other prepared meats | |
| 2015 | Poultry slaughtering and processing | |
| 202 | Dairy Products | |
| 2023 | Dry, condensed, evaporated products | |
| 2024 | Ice cream and frozen desserts | |
| 2026 | Fluid milk | |
| 203 | Preserved Fruits and Vegetables | |
| 2032 | Canned specialties | |
| 2033 | Canned fruits and vegetables | |
| 2034 | Dehydrated fruits, vegetables, soups | |
| 2035 | Pickles,sauces, and salad dressings | |
| 2037 | Frozen fruits and vegetables | |
| 2038 | Frozen specialties, nec | |
| 204 | Grain Mill Products | |
| 2041 | Flour and other grain mill products | |
| 2043 | Cereal breakfast foods | |
| 2044 | Rice milling | |
| 2046 | Wet corn milling | |
| 2048 | Prepared feeds, nec | |
| 205 | Bakery Products | |
| 2051 | Bread, cake,and related products | |
| 2052 | Cookies and crackers | |
| 206 | Sugar and Confectionery Products | |
| 2062 | Cane sugar refining | |
| 2064 | Candy and other confectionery products | |
| 2066 | Chocolate and cocoa products | |
| 2067 | Chewing gum | |
| 2068 | Salted and roasted nuts and seeds | |
| 207 | Fats and Oils | |
| 2074 | Cottonseed oil mills | |
| 2075 | Soybean oil mills | |
| 2076 | Vegetable oil mills, nec | |
| 2077 | Animal and marine fats and oils | |
| 2079 | Edible fats and oils, nec | |
| 208 | Beverages | |
| 2082 | Malt beverages | |
| 2083 | Malt | |
| 2084 | Wines, brandy, and brandy spirits | |
| 2085 | Distilled and blended liquors | |
| 2086 | Bottled and canned soft drinks | |
| 209 | Misc. Food and Kindred Products | |
| 2091 | Canned and cured fish and seafoods | |
| 2092 | Fresh or frozen prepared fish | |
| 2095 | Roasted coffee | |
| 2096 | Potato chips and similar snacks | |
| 2097 | Manufactured ice | |
| 2098 | Macaroni and spaghetti | |
| 2099 | Food preparations, nec | |
| 21 | TOBACCO PRODUCTS | |
| 2111 | Cigarettes | |
| 2121 | Cigars | |
| 213 | Chewing and Smoking Tobacco | |
| 2131 | Chewing and smoking tobacco | |
| 2141 | Tobacco stemming and redrying | |
| 22 | TEXTILE MILL PRODUCTS | |
| 221 | Broadwoven Fabric Mills, Cotton | |
| 2211 | Broadwoven fabric mills, cotton | |
| 2221 | Broadwoven fabric mills, manmade | |
| 2231 | Broadwoven fabric mills, wool | |
| 2241 | Narrow fabric mills | |
| 225 | Knitting Mills | |
| 2252 | Hosiery, nec | |
| 2253 | Knit outerwear mills | |
| 2254 | Knit underwear mills | |
| 2257 | Weft knit fabric mills | |
| 2258 | Lace & warp knit fabric mills | |
| 2259 | Knitting mills, nec | |
| 226 | Textile Finishing, Except Wool | |
| 2261 | Finishing plants, cotton | |
| 2262 | Finishing plants,manmade | |
| 2269 | Finishing plants, nec | |
| 2273 | Carpets and rugs | |
| 2281 | Yarn spinning mills | |
| 2282 | Throwing and winding mills | |
| 2284 | Thread mills | |
| 229 | Miscellaneous Textile Goods | |
| 2295 | Coated fabrics, not rubberized | |
| 2296 | Tire cord and fabrics | |
| 2297 | Nonwoven fabrics | |
| 2298 | Cordage and twine | |
| 2299 | Textile goods, nec | |
| 23 | APPAREL AND OTHER TEXTILE PRODUCTS | |
| 2311 | Men's and boys' suits and coats | |
| 2321 | Men's and boys' shirts | |
| 2323 | Men's and boys' neckwear | |
| 2325 | Men's and boys' trousers and slacks | |
| 2326 | Men's and boys' work clothing | |
| 2329 | Men's and boys' clothing, nec | |
| 2335 | Women's, juniors', & misses' dresses | |
| 2339 | Women's and misses' outerwear, nec | |
| 2342 | Bras, girdles, and allied garments | |
| 2353 | Hats, caps, and millinery | |
| 236 | Girls' and Children's Outerwear | |
| 2371 | Fur goods | |
| 238 | Miscellaneous Apparel and Accessories | |
| 2381 | Fabric dress and work gloves | |
| 2384 | Robes and dressing gowns | |
| 2385 | Waterproof outerwear | |
| 2386 | Leather and sheep-lined clothing | |
| 2387 | Apparel belts | |
| 2389 | Apparel and accessories, nec | |
| 239 | Misc. Fabricated Textile Products | |
| 2391 | Curtains and draperies | |
| 2392 | Housefurnishings, nec | |
| 2393 | Textile bags | |
| 2394 | Canvas and related products | |
| 2395 | Pleating and stitching | |
| 2396 | Apparel trimmings | |
| 2397 | Schiffli machine embroideries | |
| 2399 | Fabricated textile products, nec | |
| 24 | LUMBER AND WOOD PRODUCTS | |
| 241 | Logging | |
| 2411 | Logging | |
| 242 | Sawmills and Planing Mills | |
| 2421 | Sawmills and planing mills, general | |
| 2429 | Special product sawmills, nec | |
| 243 | Millwork, Plywood & Structural Members | |
| 2431 | Millwork | |
| 2434 | Wood kitchen cabinets | |
| 2435 | Hardwood veneer and plywood | |
| 2439 | Structural wood members, nec | |
| 2441 | Nailed wood boxes and shook | |
| 2451 | Mobile homes | |
| 2452 | Prefabricated wood buildings | |
| 249 | Miscellaneous Wood Products | |
| 2491 | Wood preserving | |
| 2493 | Reconstituted wood products | |
| 2499 | Wood products, nec | |
| 25 | FURNITURE AND FIXTURES | |
| 251 | Household Furniture | |
| 2511 | Wood household furniture | |
| 2512 | Wood household furniture, upholstered | |
| 2514 | Metal household furniture | |
| 2515 | Mattresses and bedsprings | |
| 2519 | Household furniture, nec | |
| 252 | Office Furniture | |
| 2531 | Public building & related furniture | |
| 254 | Partitions and Fixtures | |
| 26 | PAPER AND ALLIED PRODUCTS | |
| 2611 | Pulp mills | |
| 2621 | Paper mills | |
| 2631 | Paperboard mills | |
| 265 | Paperboard Containers and Boxes | |
| 2652 | Setup paperboard boxes | |
| 2653 | Corrugated and solid fiber boxes | |
| 2655 | Fiber cans,drums & similar products | |
| 2656 | Sanitary food containers | |
| 2657 | Folding paperboard boxes | |
| 267 | Misc. Converted Paper Products | |
| 2671 | Paper coated & laminated, packaging | |
| 2672 | Paper coated and laminated, nec | |
| 2673 | Bags: plastics, laminated, & coated | |
| 2674 | Bags: uncoated paper & multiwall | |
| 2676 | Sanitary paper products | |
| 2677 | Envelopes | |
| 2678 | Stationery products | |
| 2679 | Converted paper products, nec | |
| 27 | PRINTING AND PUBLISHING | |
| 2721 | Periodicals | |
| 2731 | Book publishing | |
| 2741 | Miscellaneous publishing | |
| 275 | Commercial Printing | |
| 2752 | Commercial printing,lithographic | |
| 2759 | Commercial printing,nec | |
| 2771 | Greeting cards | |
| 2782 | Blankbooks and looseleaf binders | |
| 2789 | Bookbinding and related work | |
| 2796 | Platemaking services | |
| 28 | CHEMICALS AND ALLIED PRODUCTS | |
| 281 | Industrial Inorganic Chemicals | |
| 2812 | Alkalies and chlorine | |
| 2813 | Industrial gases | |
| 2816 | Inorganic pigments | |
| 2819 | Industrial inorganic chemicals, nec | |
| 282 | Plastics Materials and Synthetics | |
| 2821 | Plastics materials and resins | |
| 2822 | Synthetic rubber | |
| 2823 | Cellulosic manmade fibers | |
| 2824 | Organic fibers, noncellulosic | |
| 283 | Drugs | |
| 2833 | Medicinals and botanicals | |
| 2834 | Pharmaceutical preparations | |
| 2835 | Diagnostic substances | |
| 2836 | Biological products exc. diagnostic | |
| 284 | Soap, Cleaners, and Toilet Goods | |
| 2841 | Soap and other detergents | |
| 2842 | Polishes and sanitation goods | |
| 2843 | Surface active agents | |
| 2844 | Toilet preparations | |
| 2851 | Paints and allied products | |
| 286 | Industrial Organic Chemicals | |
| 2861 | Gum and wood chemicals | |
| 2865 | Cyclic crudes and intermediates | |
| 2869 | Industrial organic chemicals, nec | |
| 287 | Agricultural Chemicals | |
| 2873 | Nitrogenous fertilizers | |
| 2874 | Phosphatic fertilizers | |
| 2875 | Fertilizers, mixing only | |
| 2879 | Agricultural chemicals, nec | |
| 289 | Miscellaneous Chemical Products | |
| 2891 | Adhesives and sealants | |
| 2892 | Explosives | |
| 2893 | Printing ink | |
| 2895 | Carbon black | |
| 2899 | Chemical preparations, nec | |
| 29 | PETROLEUM AND COAL PRODUCTS | |
| 2911 | Petroleum refining | |
| 2951 | Asphalt paving mixtures and blocks | |
| 2952 | Asphalt felts and coatings | |
| 2992 | Lubricating oils and greases | |
| 2999 | Petroleum and coal products, nec | |
| 30 | RUBBER AND MISC. PLASTICS PRODUCTS | |
| 3011 | Tires and inner tubes | |
| 3021 | Rubber and plastics footwear | |
| 3052 | Rubber & plastics hose & belting | |
| 3053 | Gaskets, packing and sealing devices | |
| 306 | Fabricated Rubber Products, NEC | |
| 3061 | Mechanical rubber goods | |
| 3069 | Fabricated rubber products, nec | |
| 308 | Miscellaneous Plastics Products, NEC | |
| 3081 | Unsupported plastics film & sheet | |
| 3082 | Unsupported plastics profile shapes | |
| 3083 | Laminated plastics plate & sheet | |
| 3084 | Plastics pipe | |
| 3085 | Plastics bottles | |
| 3086 | Plastics foam products | |
| 3089 | Plastics products, nec | |
| 31 | LEATHER AND LEATHER PRODUCTS | |
| 311 | Leather Tanning and Finishing | |
| 3111 | Leather tanning and finishing | |
| 3131 | Footwear cut stock | |
| 314 | Footwear, Except Rubber | |
| 3142 | House slippers | |
| 3149 | Footwear, except rubber, nec | |
| 3151 | Leather gloves and mittens | |
| 316 | Luggage | |
| 3161 | Luggage | |
| 3172 | Personal leather goods, nec | |
| 319 | Leather Goods, NEC | |
| 3199 | Leather goods, nec | |
| 32 | STONE, CLAY, AND GLASS PRODUCTS | |
| 3211 | Flat glass | |
| 322 | Glass and Glassware, Pressed or Blown | |
| 3221 | Glass containers | |
| 3229 | Pressed and blown glass, nec | |
| 323 | Products of Purchased Glass | |
| 3231 | Products of purchased glass | |
| 324 | Cement, Hydraulic | |
| 3241 | Cement, hydraulic | |
| 325 | Structural Clay Products | |
| 3251 | Brick and structural clay tile | |
| 3253 | Ceramic wall and floor tile | |
| 3255 | Clay refractories | |
| 3259 | Structural clay products, nec | |
| 326 | Pottery and Related Products | |
| 3261 | Vitreous plumbing fixtures | |
| 3263 | Semivitreous table & kitchenware | |
| 3264 | Porcelain electrical supplies | |
| 3269 | Pottery products, nec | |
| 3271 | Concrete block and brick | |
| 3272 | Concrete products, nec | |
| 3274 | Lime | |
| 3275 | Gypsum products | |
| 328 | Cut Stone and Stone Products | |
| 3281 | Cut stone and stone products | |
| 329 | Misc. Nonmetallic Mineral Products | |
| 3291 | Abrasive products | |
| 3292 | Asbestos products | |
| 3295 | Minerals, ground or treated | |
| 3296 | Mineral wool | |
| 3297 | Nonclay refractories | |
| 3299 | Nonmetallic mineral products, nec | |
| 33 | PRIMARY METAL INDUSTRIES | |
| 331 | Blast Furnace and Basic Steel Products | |
| 3312 | Blast furnaces and steel mills | |
| 3313 | Electrometallurgical products | |
| 3315 | Steel wire and related products | |
| 3316 | Cold finishing of steel shapes | |
| 3317 | Steel pipe and tubes | |
| 332 | Iron and Steel Foundries | |
| 3321 | Gray and ductile iron foundries | |
| 3322 | Malleable iron foundries | |
| 3325 | Steel foundries, nec | |
| 333 | Primary Nonferrous Metals | |
| 3331 | Primary copper | |
| 3334 | Primary aluminum | |
| 3339 | Primary nonferrous metals, nec | |
| 3341 | Secondary nonferrous metals | |
| 335 | Nonferrous Rolling and Drawing | |
| 3351 | Copper rolling and drawing | |
| 3353 | Aluminum sheet, plate, and foil | |
| 3354 | Aluminum extruded products | |
| 3355 | Aluminum rolling and drawing, nec | |
| 3356 | Nonferrous rolling and drawing, nec | |
| 3357 | Nonferrous wiredrawing & insulating | |
| 336 | Nonferrous Foundries (Castings) | |
| 3363 | Aluminum die-castings | |
| 3365 | Aluminum foundries | |
| 3366 | Copper foundries | |
| 3398 | Metal heat treating | |
| 3399 | Primary metal products, nec | |
| 34 | FABRICATED METAL PRODUCTS | |
| 3411 | Metal cans | |
| 3412 | Metal barrels, drums, and pails | |
| 3421 | Cutlery | |
| 3423 | Hand and edge tools, nec | |
| 3425 | Saw blades and handsaws | |
| 3429 | Hardware, nec | |
| 3431 | Metal sanitary ware | |
| 3432 | Plumbing fixture fittings and trim | |
| 3433 | Heating equipment, except electric | |
| 3441 | Fabricated structural metal | |
| 3442 | Metal doors, sash, and trim | |
| 3443 | Fabricated plate work (boiler shops) | |
| 3444 | Sheet metal work | |
| 3446 | Architectural metal work | |
| 3448 | Prefabricated metal buildings | |
| 3449 | Miscellaneous metal work | |
| 3451 | Screw machine products | |
| 3452 | Bolts, nuts, rivets, and washers | |
| 346 | Metal Forgings and Stampings | |
| 3462 | Iron and steel forgings | |
| 3465 | Automotive stampings | |
| 3466 | Crowns and closures | |
| 3469 | Metal stampings, nec | |
| 3471 | Plating and polishing | |
| 3479 | Metal coating and allied serviced | |
| 348 | Ordnance and Accessories, NEC | |
| 3483 | Ammunition, exc. for small arms, nec | |
| 3484 | Small arms | |
| 3491 | Industrial valves | |
| 3492 | Fluid power valves and hose fittings | |
| 3493 | Steel springs, except wire | |
| 3494 | Valves and pipe fittings, nec | |
| 3496 | Misc. fabricated wire products | |
| 3497 | Metal foil and leaf | |
| 3498 | Fabricated pipe and fittings | |
| 3499 | Fabricated metal products, nec | |
| 35 | INDUSTRIAL AND COMMERCIAL MACHINERY AND | |
| 351 | Engines and Turbines | |
| 3511 | Turbines and turbine generator sets | |
| 3519 | Internal combustion engines, nec | |
| 352 | Farm and Garden Machinery | |
| 3523 | Farm machinery and equipment | |
| 3524 | Lawn and garden equipment | |
| 353 | Construction and Related Machinery | |
| 3531 | Construction machinery | |
| 3532 | Mining machinery | |
| 3533 | Oil and gas field machinery | |
| 3534 | Elevators and moving stairways | |
| 3535 | Conveyors and conveying equipment | |
| 3536 | Hoists, cranes, and monorails | |
| 3537 | Industrial trucks and tractors | |
| 354 | Metalworking Machinery | |
| 3541 | Machine tools, metal cutting types | |
| 3542 | Machine tools, metal forming types | |
| 3543 | Industrial patterns | |
| 3544 | Special dies, tools, jigs and fixtures | |
| 3545 | Machine tool accessories | |
| 3546 | Power-driven handtools | |
| 3547 | Rolling mill machinery | |
| 3548 | Welding apparatus | |
| 3549 | Metalworking machinery, nec | |
| 355 | Special Industry Machinery | |
| 3551 | Chemical machinery | |
| 3552 | Textile machinery | |
| 3553 | Woodworking machinery | |
| 3554 | Paper industries machinery | |
| 3555 | Printing trades machinery | |
| 3556 | Food products machinery | |
| 3557 | Plastics working machinery | |
| 3558 | Construction materials machinery | |
| 3559 | Special industry machinery, nec | |
| 356 | General Industrial Machinery | |
| 3561 | Pumps and pumping equipment | |
| 3562 | Ball and roller bearings | |
| 3563 | Air and gas compressors | |
| 3564 | Blowers and Fans | |
| 3565 | Packaging machinery | |
| 3566 | Speed changers, drives, and gears | |
| 3567 | Industrial furnaces and ovens | |
| 3568 | Power transmission equipment, nec | |
| 3569 | General industrial machinery, nec | |
| 357 | Computer and Office Equipment | |
| 3571 | Electronic computers | |
| 3572 | Computer storage devices | |
| 3575 | Computer terminals | |
| 3577 | Computer peripheral equipment, nec | |
| 3578 | Calculating and accounting equipment | |
| 3579 | Office machines, nec | |
| 358 | Refrigeration and Service Machinery | |
| 3581 | Automatic vending machines | |
| 3582 | Commercial laundry equipment | |
| 3585 | Refrigeration and heating equipment | |
| 3586 | Measuring and dispensing pumps | |
| 3589 | Service industry machinery, nec | |
| 359 | Industrial Machinery, NEC | |
| 3592 | Carburetors, pistons, rings, valves | |
| 3593 | Fluid power cylinders & actuators | |
| 3594 | Fluid power pumps and motors | |
| 3596 | Scales and balances, exc. laboratory | |
| 3599 | Industrial machinery nec | |
| 36 | ELECTRONIC & OTHER ELECTRIC EQUIPMENT | |
| 361 | Electric Distribution Equipment | |
| 3612 | Transformers, except electronic | |
| 3613 | Switchgear and switchboard apparatus | |
| 362 | Electrical Industrial Apparatus | |
| 3621 | Motors and generators | |
| 3624 | Carbon and graphite products | |
| 3625 | Relays and industrial controls | |
| 3629 | Electrical industrial apparatus, nec | |
| 363 | Household Appliances | |
| 3631 | Household cooking equipment | |
| 3632 | Household refrigerators and freezers | |
| 3633 | Household laundry equipment | |
| 3634 | Electric housewares and fans | |
| 3635 | Household vacuum cleaners | |
| 3639 | Household appliances, nec | |
| 364 | Electric Lighting and Wiring Equipment | |
| 3641 | Electric lamps | |
| 3643 | Current-carrying wiring devices | |
| 3644 | Noncurrent-carrying wiring devices |