| taxation policy | taxi cab | taxi cab service |
| tax return preparation services | 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 goods | textile goods manufacturers | textile machinery |
| thai restaurant | theater | theatres-movie |
| theatrical producers | theatrical services | tile ceramic |
| timber tracts | tire dealers | tire repairing |
| tire retreading | title abstract offices | title insurance |
| 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 manufacturers |
| trailers truck | trailers truck manufacturers | transmissions-automobile |
| transportation by air | transportation services | trauma surgeons |
| travel accommodation | travel agency | travel agent |
| travel industry | tree service | trucking |
| truck rental | truck trailer | truss |
| turbine | tv communication equipment | typesetting |
