TalgoSpain
TatraCzech Republic
Tatra-YugUkraineTazzari2007
TecnomasioItaly
Tesla MotorsUnited States
Think GlobalNorway
Thomson-Houston Electric CompanyUnited States
Thunes mekaniske verkstedNorway
ToggTurkey
Tokyu Car CorporationJapan
Torzhok railcar building plantRussia
ToshibaJapan
Toyo Denki SeizoJapanToyo ElectricJapanTOYOKOUKIJapan
Toyota Auto BodyJapan
Toyota Motor CorporationJapan
TramkarBulgaria
Tramwaje WarszawskiePolandTrans-AlphaRussia
TransmashholdingRussiaTranswerkJohannesburg
TrolzaSoviet UnionTushino Machine-Building PlantRussia
Tveras vagonbūves rūpnīca1898TÜLOMSAŞTurkey
TŽV GredeljCroatia