We have so far registered 19,632 shipping companies
| Name | Founded | | Thomas Nielsen, Tvedestrand | |
| Thomas Olsen, Kristiansund N | |
| Thomas Pedersen, Arendal | |
| Thomas Pedersens Bo, Staubo, Tvedestrand | |
| Thomas Pedersen, Staubo, Tvedestrand | |
| Thomas P. Pedersen, Staubø, Tvedestrand. | |
| Thomas Salvesens Enke, Mandal | |
| Thomas Schelderup, Bodø | |
| Thomas Smedsvik, Haugesund | |
| Thomas Solli, Skien | |
| Thomas Stang, Oslo | |
| Thomas Stenersen, Lillesand | |
| Thomas Thiis, Risør | |
| Thomas Toft, Arendal | |
| Thome Ship Management Norway A/S, Oslo | |
| Thome Ship Management Pte. Ltd, Bergen / Oslo | |
| Thom G. Borgen, Oslo | |
| Th. Omholt, Arendal | |
| Thommesen, Peder, Gildeskål, Bodø | |
| Thommes Sommer, Skien | |
| Thomson, H.M., London, U.K. | |
| Th. O. & Olaf Tønnevold, Grimstad | |
| Thoralf Holta, Nystrand, Brevik | |
| Thoralf Holta, Porsgrunn | |
| Thor Arne Thorsen, Farsund / Grimstad | |
