| taxation policy | taxi cab | taxi cab service |
| tax return preparation services | telegraph apparatus | telephone apparatus |
| telephone communication | television | television broadcasting companies |
| television broadcasting stations | television repairs | television service |
| television station | temporary employment agencies | terrazzo |
| testing laboratory | textile bags | 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 | title abstract offices | title insurance |
| tobacco dealers | tobacco dealers-wholesale | 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 manufacturers | trailer park | trailers truck |
| transmissions-automobile | transportation by air | transportation services |
| transportation supplies | trauma surgeons | travel accommodation |
| travel agency | travel agent | travel industry |
| tree service | trucking | truck rental |
| truss | trust services | tunnel construction |
| turbine | turbine generator sets | tv communication equipment |
| typesetting |
