| SIC code | SIC Text
| NAICS code | NAICS Text
|
| 0112 | Rice | 111160 | Rice Farming |
| 7699 | Repair Services, NEC (farriers) | 115210 | Support Activities for Animal Production |
| 7699 | Repair Shops and Related Services (boiler cleaning) | 235110 | Plumbing, Heating, and Air-Conditioning Contractors |
| 1761 | Roofing, Siding, and Sheet Metal Work | 235610 | Roofing, Siding, and Sheet Metal Contractors |
| 2044 | Rice Milling | 311212 | Rice Milling |
| 5461 | Retail Bakeries (bread, cake and related products baked and sold on premise) | 311811 | Retail Bakeries |
| 2095 | Roasted Coffee | 311920 | Coffee and Tea Manufacturing |
| 2384 | Robes and Dressing Gowns (men's and boys' contractors) | 315211 | Men's and Boys' Cut and Sew Apparel Contractors |
| 2384 | Robes and Dressing Gowns (women's, girls', and infants' contractors) | 315212 | Women's, Girls', and Infants' Cut and Sew Apparel Contractors |
| 2384 | Robes and Dressing Gowns (men's except contractors) | 315221 | Men's and Boys' Cut and Sew Underwear and Nightwear Manufacturing |
| 2384 | Robes and Dressing Gowns (women's except contractors) | 315231 | Women's and Girls' Cut and Sew Lingerie, Loungewear, and Nightwear Manufacturing |
| 3021 | Rubber and Plastics Footwear | 316211 | Rubber and Plastics Footwear Manufacturing |
| 2493 | Reconstituted Wood Products | 321219 | Reconstituted Wood Product Manufacturing |
| 3052 | Rubber and Plastics Hose and Belting | 326220 | Rubber and Plastics Hoses and Belting Manufacturing |
| 3273 | Ready-Mixed Concrete | 327320 | Ready-Mix Concrete Manufacturing |
| 3351 | Rolling, Drawing, and Extruding of Copper | 331421 | Copper Rolling, Drawing, and Extruding |
| 3356 | Rolling, Drawing, and Extruding of Nonferrous Metals, Except Copper and Aluminum | 331491 | Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding |
| 3547 | Rolling Mill Machinery and Equipment | 333516 | Rolling Mill Machinery and Equipment Manufacturing |
| 3743 | Railroad Equipment (locomotive fuel lubricating or cooling medium pumps) | 333911 | Pump and Pumping Equipment Manufacturing |
| 3663 | Radio and Television Broadcasting and Communications Equipment | 334220 | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing |
| 3645 | Residential Electric Lighting Fixtures | 335121 | Residential Electric Lighting Fixture Manufacturing |
| 3625 | Relays and Industrial Controls | 335314 | Relay and Industrial Control Manufacturing |
| 3743 | Railroad Equipment (except locomotive fuel lubricating or cooling medium pumps) | 336510 | Railroad Rolling Stock Manufacturing |
| 5033 | Roofing, Siding, and Insulation Materials | 421330 | Roofing, Siding, and Insulation Material Wholesalers |
| 5078 | Refrigeration Equipment and Supplies | 421740 | Refrigeration Equipment and Supplies Wholesalers |
| 5561 | Recreational Vehicle Dealers | 441210 | Recreational Vehicle Dealers |
| 5731 | Radio, Television, and Consumer Electronics Stores (automobile radios) | 441310 | Automotive Parts and Accessories Stores |
| 7699 | Repair Shops and Related Services, NEC (custom picture framing) | 442299 | All Other Home Furnishings Stores |
| 7623 | Refrigeration and Air-Conditioning Service and Repair Shops (retailing new refrigerators from a storefron | 443111 | Household Appliance Stores |
| 5731 | Radio, Television, and Consumer Electronics Stores (except auto radios) | 443112 | Radio, Television, and Other Electronics Stores |
| 7622 | Radio and Television Repair Shops (retailing new radios and TVs from a storefront and repairing radios an | 443112 | Radio, Television, and Other Electronics Stores |
| 5261 | Retail Nurseries, Lawn and Garden Supply Stores (outdoor power equipment) | 444210 | Outdoor Power Equipment Stores |
| 5261 | Retail Nurseries, Lawn and Garden Supply Stores (except outdoor power equipment) | 444220 | Nursery and Garden Centers |
| 5461 | Retail Bakeries (selling only) | 445291 | Baked Goods Stores |
| 7699 | Repair Shops and Related Services, NEC (retailing new bicycles from a storefront and repairing bicycles) | 451110 | Sporting Goods Stores |
| 5735 | Record and Prerecorded Tape Stores | 451220 | Prerecorded Tape, Compact Disc, and Record Stores |
| 4011 | Railroads, Line-Haul Operating | 482111 | Line-Haul Railroads |
| 4013 | Railroad Switching and Terminal Establishments (belt line and logging railroads) | 482112 | Short Line Railroads |
| 4613 | Refined Petroleum Pipelines | 486910 | Pipeline Transportation of Refined Petroleum Products |
| 9621 | Regulation and Administration of Transportation Programs (government air traffic control) | 488111 | Air Traffic Control |
| 4013 | Railroad Switching and Terminal Establishments (all but short line railroads) | 488210 | Support Activities for Rail Transportation |
| 4741 | Rental of Railroad Cars (grain leveling in railroad cars, grain trimming for railroad equipment, precooli | 488210 | Support Activities for Rail Transportation |
| 7699 | Repair Shops and Related Services, NEC (ship scaling) | 488390 | Other Support Activities for Water Transportation |
| 4222 | Refrigerated Warehousing and Storage | 493120 | Refrigerated Warehousing and Storage |
| 4832 | Radio Broadcasting Stations (networks) | 513111 | Radio Networks |
| 4832 | Radio Broadcasting Stations (except networks) | 513112 | Radio Stations |
| 4812 | Radiotelephone Communications (paging carriers) | 513321 | Paging |
| 4812 | Radiotelephone Communications (cellular carriers) | 513322 | Cellular and Other Wireless Telecommunications |
| 4812 | Radio Communications (paging and cellular resellers) | 513330 | Telecommunications Resellers |
| 6798 | Real Estate Investment Trusts | 525930 | Real Estate Investment Trusts |
| 6531 | Real Estate Agents Managers (agents and brokers) | 531210 | Offices of Real Estate Agents and Brokers |
| 6531 | Real Estate Agents and Managers (managers-residential, real estate) | 531311 | Residential Property Managers |
| 6531 | Real Estate Agents and Managers (managers-nonresidential, real estate) | 531312 | Nonresidential Property Managers |
| 6531 | Real Estate Agents and Managers (appraisers) | 531320 | Offices of Real Estate Appraisers |
| 6531 | Real Estate Agents and Managers (except real estate managers, condominium management, cemetery management | 531390 | Other Activities Related to Real Estate |
| 4741 | Rental of Railroad Cars (rental of railroad cars) | 532411 | Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing |
| 7313 | Radio, Television, and Publishers' Advertising Representatives | 541840 | Media Representatives |
| 7699 | Repair Shops and Related Services, NEC (locksmith shops) | 561622 | Locksmiths |
| 7699 | Repair Shops and Related Services, NEC (furnace, duct, chimney, gutter, and drain cleaning services) | 561790 | Other Services to Buildings and Dwellings |
| 4953 | Refuse Systems (hazardous waste treatment and disposal) | 562211 | Hazardous Waste Treatment and Disposal |
| 4953 | Refuse Systems (solid waste landfills) | 562212 | Solid Waste Landfill |
| 4953 | Refuse Systems (solid waste combustors and incinerators) | 562213 | Solid Waste Combustors and Incinerators |
| 4953 | Refuse Systems (other nonhazardous waste treatment and disposal) | 562219 | Other Nonhazardous Waste Treatment and Disposal |
| 4953 | Refuse Systems (materials recovery facilities) | 562920 | Materials Recovery Facilities |
| 7699 | Repair Shops and Related Services, NEC (cesspool and septic tank cleaning) | 562991 | Septic Tank and Related Services |
| 7699 | Repair Shops and Related Services, NEC (sewer cleaning and rodding) | 562998 | All Other Miscellaneous Waste Management Services |
| 8361 | Residential Care (mental health and substance abuse facilities) | 623220 | Residential Mental Health and Substance Abuse Facilities |
| 8361 | Residential Care (homes for the elderly) | 623312 | Homes for the Elderly |
| 8361 | Residential Care (except mental health and substance abuse facilities, homes for the elderly) | 623990 | Other Residential Care Facilities |
| 7948 | Racing, Including Track Operations (track operations) | 711212 | Racetracks |
| 7948 | Racing, Including Track Operations (except track operators) | 711219 | Other Spectator Sports |
| 7699 | Repair Shops and Related Services, NEC (taxidermists and antique repair and restoration, except antique c | 711510 | Independent Artists, Writers, and Performers |
| 7641 | Reupholstery and Furniture Repair (antique furniture restoration) | 711510 | Independent Artists, Writers, and Performers |
| 7033 | Recreational Vehicle Parks and Campgrounds | 721211 | RV (Recreational Vehicle) Parks and Campgrounds |
| 7021 | Rooming and Boarding Houses | 721310 | Rooming and Boarding Houses |
| 5461 | Retail Bakeries (snacks) | 722213 | Snack and Nonalcoholic Beverage Bars |
| 7622 | Radio and Television Repair Shops (other stereo, TV, VCR, and radio) | 811211 | Consumer Electronics Repair and Maintenance |
| 7699 | Repair Shops and Related Services, NEC (camera repair) | 811211 | Consumer Electronics Repair and Maintenance |
| 7699 | Repair Shops and Related Services, NEC (typewriter repair) | 811212 | Computer and Office Machine Repair and Maintenance |
| 7622 | Radio and Television Repair Shops (other telecommunication equipment repair) | 811213 | Communication Equipment Repair and Maintenance |
| 7699 | Repair Shops and Related Services, NEC (dental instrument repair, laboratory instrument repair, medical e | 811219 | Other Electronic and Precision Equipment Repair and Maintenance |
| 7699 | Repair Shops and Related Services, NEC (other non-automotive transportation equipment and industrial mach | 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenan |
| 7623 | Refrigeration and Air-Conditioning Services and Repair Shops (commercial refrigerator equipment repair) | 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenan |
| 7699 | Repair Shops and Related Services, NEC (lawnmower repair shops, sharpening and repairing knives, saws and | 811411 | Home and Garden Equipment Repair and Maintenance |
| 7623 | Refrigeration and Air-Conditioning Service and Repair Shops (except commercial and retailing new refriger | 811412 | Appliance Repair and Maintenance |
| 7699 | Repair Shops and Related Services, NEC (gas appliance repair service, sewing machine repair, stove repair | 811412 | Appliance Repair and Maintenance |
| 7641 | Reupholstery and Furniture Repair (except antique furniture restoration) | 811420 | Reupholstery and Furniture Repair |
| 7699 | Repair Shops and Related Services (leather goods repair shops, luggage repair shops, pocketbook repair sh | 811430 | Footwear and Leather Goods Repair |
| 7699 | Repair Shops and Related Services, NEC (except industrial, electronic, home and garden, appliance, and le | 811490 | Other Personal and Household Goods Repair and Maintenance |
| 6531 | Real Estate Agents and Managers (cemetery management) | 812220 | Cemeteries and Crematories |
| 8661 | Religious Organizations | 813110 | Religious Organizations |
| 6531 | Real Estate Agents and Managers (condominium associations) | 813990 | Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) |
| 9621 | Regulation and Administration of Transportation Programs (except air traffic control) | 926120 | Regulation and Administration of Transportation Programs |
| 9631 | Regulation and Administration of Communications, Electric, Gas, and Other Utilities | 926130 | Regulation and Administration of Communications, Electric, Gas, and Other Utilities |
| 9641 | Regulation of Agricultural Marketing and Commodities | 926140 | Regulation of Agricultural Marketing and Commodities |
| 9651 | Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors | 926150 | Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors |
