| taxation policy | taxi cab | taxi cab service |
| tax return preparation services | technology schools | telegraph |
| telephone communication | television | television broadcasting companies |
| television broadcasting stations | television repairs | television service |
| television station | temporary employment agencies | terrazzo |
| testing laboratory | textile finishing | textile finishing manufacturers |
| textile goods | textile goods manufacturers | textile machinery |
| textile machinery manufacturers | textile parts manufacturers | thai restaurant |
| theater | theatres-movie | theatrical producers |
| theatrical services | tile ceramic | tire dealers |
| tire distributors | tire repairing | tire retreading |
| title abstract offices | tobacco dealers | tobacco dealers retail |
| tool die makers | tool maker | tool parts |
| top repair | tour operators | tours promoters |
| toys goods | toy shops | toys supplies |
| trade schools | trailer park | transformer manufacturer |
| transmissions-automobile | transportation by air | transportation services |
| transportation supplies | trauma surgeons | travel accommodation |
| travel agency | travel agent | travel industry |
| tree service | truck body manufacturer | trucking |
| trucking terminal facilities | truck rental | turbine |
| turbine generator sets | tv communication equipment | twine |
| typesetting |
