Vi har så langt registrert 19 566 rederier
| Navn | Grunnlagt | | Theisen,Karl, Sælør | |
| Theisens Enke, T.C.,Spind | |
| Theisen,Theis Abraham, Spind | |
| Theisen,Theis, Spind | |
| Theisen, Østen, Austad | |
| Theis Jacobi Torkildsen, Lundegaard, Spind, Farsund | |
| Theis J. Haalvig, Spangereid | |
| Theis Lundgård, Lillesand | |
| Theis Rasmussen, Bugdø | |
| Theis Salvesen, Farsund | |
| Theis Salvesen, Lyngdal | |
| Theis Tønnesen, Farsund | |
| The Kellner Parkington Paper Pulp Co.Ltd.,Sarpsborg | |
| Thelita Shipping A/S, Kristiansund N | |
| T. Hellesøe, Bergen | |
| Th. Elmenhorst, Arendal | |
| The Mayor, Aldermen & Councillors of the Metropolitan Brough of Fullham v/ Stephenson, Clarke Ltd. | |
| The North Atlantic Canning Co A/S, Trondheim | |
| The North Sea Trading Co., Kristiania | |
| T. Henrichsen, Arendal | |
| Theodor Briseid, Feda | |
| Theodor Briseid & Peder Bøgvald, Feda, Flekkefjord | |
| Theodor Broch, Oslo | |
| Theodor E. Halvorsen, Tvedestrand | |
| Theodor Hansen, Haugesund | |
