| Truck Dealers | 483 |
| Truck Dealers-Used | 484 |
| Truck Equipment, Parts & Accessories | 484 |
| Truck Mfrs & Distributors | 485 |
| Truck Painting & Lettering | 485 |
| Truck Renting & Leasing | 485 |
| Truck Repairing & Service | 486 |
| Truck Stops | 486 |
| Truck Transporting | 487 |
| Truck Washing & Cleaning | 487 |
| Trucking-Dump | 487 |
| Trucking-Heavy Hauling | 487 |
| Trucking Transportation Brokers | 488 |
| Trucking-Motor Freight | 488 |
| Tube Fittings | 488 |
| Tune-Ups-Automotive | 488 |
| Tunneling Contractors | 488 |
| Tutoring | 488 |
| Tuxedos | 488 |
| U |
| Uniforms | 488 |
| Upholsterers | 488 |
| Utilities Underground Cable, Pipe & Wire | 489 |
| Locating Service |
| Utility Contractors | 489 |
| V |
| Vacation Time Sharing Plans | 489 |
| Vacuum Cleaners-Household-Dealers | 489 |
| Vacuum Cleaners-Service & Repair | 489 |
| Vacuum Cleaning Systems | 489 |
| Valves | 489 |
| Variety Store Merchandise-Whsle | 489 |
| Variety Stores | 489 |
| Vending Brokers | 489 |
| Vending Machines | 489 |
| Veterans’ & Military Organizations | 489 |
| Veterinarian Emergency Service | 489 |
| Veterinarians-DVM | 490 |
| Veterinarians’ Equipment & Supplies | 491 |
| Veterinarians-DVM-Surgeons | 491 |
| Video Equipment-Dealers | 491 |
| Video Games-Dealers | 491 |
| Video Games-Renting & Leasing | 492 |
| Video Production Services | 492 |
| Videotapes & Discs-Sales & Rentals | 492 |
| Violins | 492 |
| Vitamins & Food Supplements | 492 |
| W |
| Wallpapers & Wallcoverings | 492 |
| Warehouses-Commodity & Merchandise | 493 |
| Warehouses-Household Goods | 495 |
| Warehouses-Mini | 495 |
| Washing Machines & Dryers-Coin Metered | 495 |
| Washing Machines & Dryers-Renting & Leasing | 495 |
| Washing Machines & Dryers-Service & Repair | 495 |
| Waste Reduction Consultants | 495 |
| Waste Reduction, Disposal & Recycling | 495 |
| Equipment-Industrial |
| Waste Reduction, Disposal & Recycling Service- | 495 |
| Industrial |