| T´Trans http://www.ttrans.com.br |
| Taiwan Railways (TRA) http://www.railway.gov.tw |
| Talgo http://www.talgo.com |
| TAZARA Railway http://mbendi.co.za/orgs/calp.htm |
| Tecnobank http://www.teknobank.com.br/afe |
| Telecom SNCB http://www.telecomrail.com |
| Temoinsa do Brasil Ltda. http://www.temoinsa.com |
| TFM http://www.tfm.com.mx |
| Thalys http://www.thalys.com |
| TIR Convention http://www.itu.int/editrans/facilit/tircon/ |
| Torino Railway Museum http://www.panweb.sicap.it/mfp/default.htm |
| TRACECA http://www.traceca.org |
| Train Brokers (THE TRAIN CHARTERING COMPANY) http://www.train-chartering.com |
| Trains Magazine http://www.kalmbach.com/trains/ |
| Trainweb http://www.trainweb.com |
| Tramlink http://www.tramlink.co.uk |
| Tramway Directory http://www.tramway.com |
| Trans (TARES) http://www.tares.com |
| Trans Europ Express (TEE) http://www.cwi.nl/~dik/english/public_transport/TEE/ |
| Transbrasil http://www.transbrasil.com.br |
| Transcat Database http://www.silverplatter.com/catalog/trsc.htm |
| Transcom Ltd (CPCS) http://www.cpcstrans.com |
| Transnamibia Rail http://www.transnamib.com.na |
| Transport (CNC) http://www.cnc-transports.fr/ |
| Transport & Environment Mailing List (TRANSENVIRO) http://majordomo@itre.itre.ncsu.edu |
| Transport at Department of the Environment for Northern Ireland http://www.nics.gov.uk/transport/ |
| Transport Database http://www.silverplatter.com/catalog/tspt.htm |
| Transport division United Nations (UN/ECE) http://www.unece.org/trans/ |
| Transport Europe (journal) http://www.eis.be |
| Transport in Russia http://www.transport.ru |
| Transport research and training (NEA ) http://www.nea.nl |
| Transport Research Laboratory (TRL) http://www.trl.co.uk |
| Transport Technology Publishing http://www.ttpnews.com |
| Transport Web http://www.transportweb.com |
| Transportation (CSX) http://www.csxt.com |
| Transportation & Economy (Journal) http://www.bekkoame.or.jp/~ite/tandee.html |
| Transportation Action Network http://www.transact.org |
| Transportation Association of Canada http://www.tac-atc.ca |
| Transportation at EPA http://www.epa.gov/tp/ |
| Transportation Engineering (TAMPERE UNIVERSITY OF TECHNOLOGY) http://www.ce.tut.fi/liku/liku_eng.html |
| Transportation Faculty, "POLITEHNICA" University of Bucharest (Romania) http://www.pub.ro/faculties/N08TRANS.html |
| Transportation library, University of Berkeley, Ca. http://www.lib.berkeley.edu/ITSL/ |
| Transportation Technologies for Sustainable Communities http://www.transact.org/ttsc/index.htm |
| Transportation Technology Center Inc. (TTCi) http://www.aar.com |
| Transportnews http://www.transportnews.com |
| Transports (revue) http://www.editecom.com/RevueTransports.htm |
| Transrapid (MVP) http://www.mvp.de |
| Transrapid (unofficial) http://transrapid.simplenet.com |
| TranzRail http://www.tranzrail.co.nz |
| Trem http://www.trem.org.br |
| Tremja http://www.tremja.com.br |
| Tren a las Nubes http://www.trenalasnubes.com.ar |
| Tren de la Costa http://www.trendelacosta.com.ar |
| Tren del Fin del Mundo http://www.trendelfindelmundo.com.ar |
| Tren Patagónico http://www.trenpatagonico.com.ar |
| Trenes Argentinos http://www.trenesarg.com.ar |
| Trenes de Buenos Aires (TBA) http://www.tbanet.com.ar |
| Trenes Especiales Argentinos (TEA) http://www.trenesdellitoral.com.ar |
| Trensurb http://www.trensurb.gov.br |
| Trieste Railway Museum http://www.interware.it/no/triestecm/ |
| Turistren http://www.turistren.com.co |
| Turkish Airlines http://www.turkishairlines.com |
| Tutto Treno http://www.panweb.sicap.it/tuttoTRENO/ |