| Tailors | 821 |
| T-Shirts | 821 |
| T-Shirts-Whsle | 821 |
| Talent Agencies & Casting Services | 822 |
| Tank Installation & Removal | 822 |
| Tanks-Fiberglass, Plastic, Etc | 822 |
| Tanks-Used | 822 |
| Tanners | 822 |
| Tanning Salons | 822 |
| Tanning Salons Equipment & Supplies | 823 |
| Tarpaulins | 823 |
| Tattooing | 824 |
| Tattoos-Removed | 824 |
| Taverns | 824 |
| Tax Reporting Service | 824 |
| Tax Return Preparation | 824 |
| Taxes-Consultants, Representatives | 826 |
| Taxicabs | 826 |
| Taxidermists | 826 |
| Taxidermists’ Equipment & Supplies | 826 |
| Tea Rooms | 826 |
| Teachers’ Agencies | 826 |
| Technology-Research & Development | 826 |
| Telecommunications Contractors | 826 |
| Telecommunications Equipment & Supplies | 826 |
| Telephone Answering Service | 826 |
| Telephone Communications Services | 827 |
| Telephone Companies | 827 |
| Telephone Equipment & Systems-Dealers | 827 |
| Telephone Equipment & Systems- Service & | 828 |
| Repair |
| Telephone Equipment & Systems- Whsle & Mfrs | 828 |
| Telephone Service-Long Distance | 828 |
| Television & Radio-Dealers | 828 |
| Television & Radio-Renting & Leasing | 828 |
| Television Equipment Systems- Service & | 828 |
| Repair |
| Television Master Antenna Systems | 828 |
| Television-Cable, CATV, Satellite & Fiber | 828 |
| Television & Radio-Service & Repair | 829 |
| Television Stations & Broadcasting Companies | 829 |
| Television Systems & Equipment- Closed Circuit | 830 |
| Temples | 830 |
| Tennis Court Construction | 830 |
| Tennis Courts-Private | 830 |
| Tennis Equipment & Supplies | 830 |
| Tents-Renting | 831 |
| Termite Inspections | 831 |
| Theatres | 834 |
| Theatres-Stage | 836 |
| Thrift Shops | 836 |
| Ticket Sales-Events | 836 |
| Tickets & Coupons-Printers & Suppliers | 836 |
| Tile-Ceramic-Contractors & Dealers | 836 |
| Tile-Ceramic-Mfrs & Distributors | 838 |
| Tile-Ceramic-Repairing & Refinishing | 838 |
| Tile-Ceramic-Whol & Mfrs | 838 |
| Tile-Nonceramic-Contractors & Dealers | 838 |
| Timber & Timberland Companies | 838 |
| Time Cards, Racks & Supplies | 838 |
| Time Recorders | 838 |
| Tire Dealers | 839 |
| Tire Dealers-Used | 844 |
| Tire Mfrs & Distributors | 844 |
| Tire Retreading & Repairing | 844 |
| Title Companies | 845 |
| Tobacco Products | 847 |
| Tobacco-Whsle | 848 |
| Toilets-Portable | 848 |