| tank components | tank components manufacturers | 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 goods | textile goods manufacturers | textile machinery |
| thai restaurant | theater | theatres-movie |
| theatrical producers | theatrical services | tile ceramic |
| tile ceramic manufacturers | tire dealers | tire distributors |
| tire repairing | tire retreading | tire tubes |
| title abstract offices | tobacco dealers | tobacco dealers retail |
| toilet preparations | tool die makers | tool maker |
| tool parts | top repair | tour operators |
| tours promoters | toys goods | toy shops |
| toys supplies | trade exchange | trade schools |
| trailer designers | trailer manufacturers | trailer park |
| trailers truck | transmissions-automobile | transportation by air |
| transportation services | transportation supplies | trauma surgeons |
| travel accommodation | travel agency | travel agent |
| travel campers | travel industry | tree service |
| tree service equipment | truck body manufacturer | trucking |
| truck rental | truck trailer | truss |
| trust services | t shirt manufacturer | tug boat services |
| tunnel construction | turbine | turbine generator sets |
| tv communication equipment | twine | typesetting |
