We have so far registered 19,566 shipping companies
| Name | Founded | | Thronn Stordahl, Farsund | |
| Thronsen & Abrahamsen, Porsgrund | |
| Th. Røien, Lillesand | |
| Th. Salvesen, Farsund | |
| Th. Sandberg, Fredrikstad | |
| Ths. Andersen, Tønsberg | |
| Ths. Angell, Bergen | |
| Ths. Angell Wiese, Fredrikstad | |
| Ths. Arboe Høegh, Larvik | |
| Ths. & Asb. Mannes, Haugesund | |
| Ths. Aschenhoug, Halden | |
| Ths. A. Wilberg, Fredrikstad | |
| Ths. Bugge, Tønsberg | |
| Ths. C. Hansen, Kristiansand | |
| Th. Schjøtt, Bergen | |
| Ths. Chr. Haaland, Haugesund | |
| Ths. & Henry Lorentzen, Drammen | |
| Ths. Høyer, Risør | |
| Ths. Idsø, Kopervik | |
| Ths Isefjær m/ fl. Kristiansand | |
| Ths Johs. Heftye & Søn, Kristiania | |
| T. H. Skogland, Haugesund | |
| T. H. Skogland & Søn, Haugesund | 1899 |
| Ths. K Simonsen & J. Hegnander, Mandal | |
| Ths. Melsom, Arendal | |
