- TRANWO Technology
- Tranwo Technology Corp
- TRANYA
- Tranzeo
- Tranzeo Wireless Technologies
- TranzX
- Trapeze
- Trapeze Networks
- Trapeze Software Group
- TRAPP
- Trasman
- Traulsen
- Traulux
- TraumGarten
- travall
- Travel en Co
- Traveler
- Travelsat
- Travelux
- Travis
- Travis Industries
- Travis Pattern and Foundry
- TravRoute
- Traxdata
- Traxion
- Traxis
- Traxon
- TRAXX
- Traxxas
- Traxxas LP
- TRAYNOR
- Treasure Cove
- Treasure Garden
- TREATLIFE
- Treblab
- Trebor
- Trebs
- Tree
- Tree Trainer
- TreeDiaper
- TREELOGIC
- Treetech
- Trek
- Trek7
- trekstop
- Trekstor
- TrekStor i-Beat