| Sports Cards & Memorabilia | 376 |
| Sports Clubs & Organizations | 376 |
| Sports Information | 376 |
| Sportswear | 376 |
| Spraying Equipment | 376 |
| Sprinklers-Automatic-Fire | 376 |
| Sprinklers-Garden & Lawn | 376 |
| Stables | 377 |
| Stamps For Collectors | 377 |
| Steamship Agencies | 377 |
| Steel Erectors | 377 |
| Steel Processing & Fabricating Equipment | 377 |
| Stereophonic & High Fidelity Equipment-Dealers | 377 |
| Stock & Bond Brokers | 377 |
| Stone-Cast | 377 |
| Stone-Natural | 377 |
| Storage-Household & Commercial | 378 |
| Storage-Self Service | 379 |
| Storefronts | 379 |
| Storm Windows & Doors | 379 |
| Stucco & Exterior Coat Contractors | 379 |
| Stucco Contractors | 379 |
| Stump Removal | 379 |
| Sunglasses & Sun Goggles | 379 |
| Sunrooms | 380 |
| Surveillance Equipment | 380 |
| Surveyors-Aerial | 380 |
| Surveyors-Land | 380 |
| Sweeping Service-Power | 381 |
| Swimming Pool Contractors, Dealers & Designers | 381 |
| Swimming Pool Enclosures | 382 |
| Swimming Pool Equipment & Supplies | 382 |
| Swimming Pool Service & Repair | 382 |
| Synagogues | 382 |
| T |
| Tailors | 382 |
| Talent Agencies & Casting Services | 382 |
| T-Shirts | 382 |
| Tanning Salons | 383 |
| Tattooing | 383 |
| Taverns | 383 |
| Tax Return Preparation | 384 |
| Taxes-Consultants, Representatives | 385 |
| Taxicabs | 385 |
| Taxidermists | 385 |
| Teen Clubs | 385 |
| Telecommunications Contractors | 386 |
| Telegraph Service | 386 |
| Telephone Answering Service | 386 |
| Telephone Communications Services | 386 |
| Telephone Companies | 386 |
| Telephone Equipment & Systems- Service & | 386 |
| Repair |
| Telephone Equipment & Systems-Dealers | 386 |
| Telephone & Television Cable Contractors | 387 |
| Telephone Service-Long Distance | 387 |
| Television & Radio-Dealers | 387 |
| Television & Radio-Renting & Leasing | 387 |
| Television-Cable, CATV, Satellite & Fiber | 387 |