| Compañía ferroviaria |
Logotipo y vínculo |
Tåg i Bergslagen  |
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| Tågkompaniet |
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Taiwan High Speed Rail Corp  |
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| Taïwan Railway Administration (TRA) |
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Tajik Railways  |
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Takamatsu Kotohira Electric Railroad  |
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Tanzania Railways Corporation  |
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| Tarumi Railway |
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TAZARA (Tanzania-Zambia Railway Authority)  |
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| Tenryū Hamanako Railroad |
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TGV  |
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Thalys  |
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The Great Journeys of New Zealand  |
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The Rail Australia Alliance  |
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Thello  |
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Thurbo AG  |
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| TMR Transports de Martigny et Regions SA |
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| Tōbu |
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| Tokai Transport Service Company |
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| Tokyo Express Electric Railway |
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Tổng công ty Đường sắt Việt Nam (Vietnam Railways)  |
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| Tosa-Kuroshio Railway |
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| Toyama Regional Railway |
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| Toyo Rapid Railway |
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| Toyohashi Railway |
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Trainkos  |
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Trainline  |
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Trainose  |
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| Tramway du Mont Blanc |
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Trans Regio Deutsche Regionalbahn GmbH  |
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| Transdev GmbH |
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Transdev North America  |
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| Transdev Sverige |
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| Transdev Wellington |
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Transgabonais (SETRAG)  |
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| Translink |
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Transnamib  |
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Transnet  |
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| TransPennine Express |
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| Transport for London |
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| Transport for Wales (TFW Rail) |
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| Transports de la région Morges-Bière-Cossonay SA |
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| Transports Publics du Chablais SA |
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| Transports Publics Fribourgeois Holding SA (TPF) |
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| Transports Publics Neuchâtelois SA |
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| Transwa |
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| Travys |
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Tren de la Costa  |
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| Tren Patagónico SA |
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| Trenau Arriva Cymru |
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| Trenes del Litoral |
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| Trenord |
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| Trentino Trasporti SpA |
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| Tri-Rail |
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| Trinity Railway Express |
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Tshiuetin Rail Transportation (TSH)  |
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| Tsugaru Railway |
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| Tsukuba Express |
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Türkiye Cumhuriyeti Devlet Demiryollari (TCDD)  |
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Türkmendemirýollary  |
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