| taxation policy | taxi cab | taxi cab service |
| tax return preparation services | tax school | technology schools |
| telegraph | telegraph apparatus | telephone apparatus |
| telephone communication | television | television broadcasting companies |
| television broadcasting stations | television repairs | television service |
| television station | temporary employment agencies | terminal services |
| 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 | thread mills |
| tile ceramic | tile ceramic manufacturers | timber tracts |
| 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-automobile utility |
| trailers automobile utility manufacturers | trailers truck | transmissions-automobile |
| transportation by air | transportation services | transportation supplies |
| trauma surgeons | travel accommodation | travel agency |
| travel agent | travel industry | treated minerals manufacturer |
| tree service | truck body manufacturer | trucking |
| trucking terminal facilities | truck rental | truck trailer |
| truss | trust services | t shirt manufacturer |
| tug boat services | tunnel construction | turbine |
| turbine generator sets | tv communication equipment | typesetting |
