| NAICS code | NAICS Text
| SIC code | SIC Text
|
| 111334 | Berry (except Strawberry) Farming | 0171 | Berry Crops ( except strawberry farms) |
| 112110 | Beef Cattle Ranching and Farming, including Feedlots | | |
| 112111 | Beef Cattle Ranching and Farming | 0212 | Beef Cattle, Except Feedlots |
| 112111 | Beef Cattle Ranching and Farming | 0241 | Dairy Farms (dairy heifer replacement farms) |
| 112320 | Broilers and Other Meat Type Chicken Production | 0251 | Broiler, Fryers, and Roaster Chickens |
| 212111 | Bituminous Coal and Lignite Surface Mining | 1221 | Bituminous Coal and Lignite Surface Mining |
| 212112 | Bituminous Coal Underground Mining | 1222 | Bituminous Coal Underground Mining |
| 233 | Building, Developing, and General Contracting | | |
| 234120 | Bridge and Tunnel Construction | 1622 | Bridge, Tunnel, and Elevated Highway Construction |
| 234120 | Bridge and Tunnel Construction | 8741 | Management Services (bridge and tunnel construction management) |
| 235950 | Building Equipment and Other Machinery Installation Contractors | 1796 | Installation or Erection of Building Equipment, NEC |
| 311230 | Breakfast Cereal Manufacturing | 2043 | Cereal Breakfast Foods (breakfast cereal) |
| 311313 | Beet Sugar Manufacturing | 2063 | Beet Sugar |
| 3118 | Bakeries and Tortilla Manufacturing | | |
| 311810 | Bread and Bakery Product Manufacturing | | |
| 312 | Beverage and Tobacco Product Manufacturing | | |
| 3121 | Beverage Manufacturing | | |
| 312112 | Bottled Water Manufacturing | 2086 | Bottled and Canned Soft Drinks and Carbonated Water (bottled water) |
| 312112 | Bottled Water Manufacturing | 5149 | Groceries and Related Products, NEC (bottling mineral or spring water) |
| 312120 | Breweries | 2082 | Malt Beverages (except malt extract) |
| 313210 | Broadwoven Fabric Mills | 2211 | Broadwoven Fabric Mills, Cotton |
| 313210 | Broadwoven Fabric Mills | 2221 | Broadwoven Fabric Mills, Manmade Fiber and |
| 313210 | Broadwoven Fabric Mills | 2231 | Broadwoven Fabric Mills, Wool (Including Dyeing and Finishing) (except wool finishing only) |
| 313210 | Broadwoven Fabric Mills | 2299 | Textile Goods, NEC (broadwoven fabrics of jute, linen, hemp, and ramie and handwoven) |
| 313311 | Broadwoven Fabric Finishing Mills | 2231 | Broadwoven Fabric Mills, Wool (wool broadwoven fabric finishing only) |
| 313311 | Broadwoven Fabric Finishing Mills | 2261 | Finishers of Broadwoven Fabrics of Cotton |
| 313311 | Broadwoven Fabric Finishing Mills | 2262 | Finishers of Broadwoven Fabrics of Manmade Fiber and Silk |
| 313311 | Broadwoven Fabric Finishing Mills | 5131 | Piece Goods and Notions (broadwoven piece good converters) |
| 313311 | Broadwoven Fabric Finishing Mills | 7389 | Business Services, NEC (sponging fabric for tailors and dressmakers) |
| 323117 | Books Printing | 2732 | Book Printing |
| 323118 | Blankbook, Looseleaf Binders, and Devices Manufacturing | 2782 | Blankbooks, Loose-leaf Binders and Devices (except checkbooks) |
| 3251 | Basic Chemical Manufacturing | | |
| 325414 | Biological Product (except Diagnostic) Manufacturing | 2836 | Biological Products, Except Diagnostic Substance |
| 327121 | Brick and Structural Clay Tile Manufacturing | 3251 | Brick and Structural Clay Tile (except slumped brick) |
| 3324 | Boiler, Tank, and Shipping Container Manufacturing | | |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 3452 | Bolts, Nuts, Screws, Rivets, and Washers |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 3429 | Hardware, NEC (turnbuckles and hose clamps) |
| 332991 | Ball and Roller Bearing Manufacturing | 3562 | Ball and Roller Bearings |
| 334412 | Bare Printed Circuit Board Manufacturing | 3672 | Printed Circuit Boards |
| 335910 | Battery Manufacturing | | |
| 336612 | Boat Building | 3732 | Boat Building and Repairing (boat building) |
| 337920 | Blind and Shade Manufacturing | 2591 | Drapery Hardware and Window Blinds and Shades |
| 339994 | Broom, Brush, and Mop Manufacturing | 3991 | Brooms and Brushes |
| 339994 | Broom, Brush, and Mop Manufacturing | 2392 | Housefurnishings, Except Curtains and Draperies (mops, floor and dust) |
| 339995 | Burial Casket Manufacturing | 3995 | Burial Caskets |
| 421320 | Brick, Stone, and Related Construction Material Wholesalers | 5032 | Brick, Stone, and Related Construction Materials (except construction materials sold via retail method) |
| 4228 | Beer, Wine, and Distilled Alcoholic Beverage Wholesalers | | |
| 422810 | Beer and Ale Wholesalers | 5181 | Beer and Ale |
| 422920 | Book, Periodical, and Newspaper Wholesalers | 5192 | Books, Periodicals, and Newspapers |
| 441222 | Boat Dealers | 5551 | Boat Dealers |
| 444 | Building Material and Garden Equipment and Supplies Dealers | | |
| 4441 | Building Material and Supplies Dealers | | |
| 445291 | Baked Goods Stores | 5461 | Retail Bakeries (selling only) |
| 4453 | Beer, Wine, and Liquor Stores | | |
| 445310 | Beer, Wine, and Liquor Stores | 5921 | Liquor Stores |
| 4512 | Book, Periodical, and Music Stores | | |
| 451210 | Book Stores and News Dealers | | |
| 451211 | Book Stores | 5942 | Book Stores |
| 485113 | Bus and Other Motor Vehicle Transit Systems | 4111 | Local and Suburban Transit (bus and motor vehicle) |
| 511130 | Book Publishers | 2731 | Books: Publishing, or Publishing and Printing (except music books) |
| 511130 | Book Publishers | 2741 | Miscellaneous Publishing (technical manuals and books) |
| 513 | Broadcasting and Telecommunications | | |
| 541350 | Building Inspection Services | 7389 | Business Services, NEC (home and building inspection services) |
| 5614 | Business Support Services | | |
| 561430 | Business Service Centers | | |
| 6114 | Business Schools and Computer and Management Training | | |
| 611410 | Business and Secretarial Schools | 8244 | Business and Secretarial Schools |
| 621991 | Blood and Organ Banks | 8099 | Health and Allied Services, NEC (blood and organ banks) |
| 713950 | Bowling Centers | 7933 | Bowling Centers |
| 721191 | Bed-and-Breakfast Inns | 7011 | Hotels and Motels (bed and breakfast inns) |
| 812111 | Barber Shops | 7241 | Barber Shops (except barber colleges) |
| 812112 | Beauty Salons | 7231 | Beauty Shops (except beauty and cosmetology schools and manicure and pedicure salons) |
| 8139 | Business, Professional, Labor, Political, and Similar Organizations | | |
| 813910 | Business Associations | 8611 | Business Associations |
| 813910 | Business Associations | 8699 | Membership Organizations, NEC (farm business organizations) |