We have so far registered 19,566 shipping companies
| Name | Founded | | Transatlantica Rhederei AG (Menzell), Hamburg, Tyskland | |
| Transatlantic Motorskibs Co, Kristiania | |
| Transittkontoret, Bergen | |
| Transmar A/S, Trondheim | |
| Transocean A/S,Tananger | |
| Transocean Shipping & Chartering Co. Ltd., Panama | |
| Transport og Slepetjeneste A/S,Sætre, | |
| Trans Viking A/S; c/o Viking Supply Ships A/S, Kristiansand (Rederi-A/B Transatlantic), Skärhamn. | |
| Trans Viking Icebreaking & Offshore A/S, c/o Viking Supply Ships A/S, Kristiansand (Rederi-A/B Transatlantic), Skärhamn. | |
| Tran,Tuan Ba,Skjetten | |
| T. Rasmussen & R. Tønnesen, Kristiansand S | |
| T. Rasmussen, Spind | |
| T. Rasmussen, Stavanger | |
| Trawler Cambridge Inc. | |
| T. Reinertsen, Lista | |
| Trekk A/S, Langesund | |
| Trelleborg Ångfartygs AB v/ Jarl Malmros. Trelleborg, Sverige | |
| Trelleborg Ångf. Nya Aktiebolag v/ J.Malmros. Trelleborg | |
| Trent Maritime & Co. Ltd., London, England | |
| Tres Shipping A/S, Bergen | |
| Tresvik A/S, Bergen / Måløy | |
| Trico Shipping A/S, Fosnavåg | |
| Trico Supply ASA, Haugesund/ Fosnavåg | |
| Trigonor Shipping A/S, Bergen | |
| Trinder, Anderson & Co, London, U.K. | |
