We have so far registered 19,632 shipping companies
| Name | Founded | | C. Sewall, Kristiania | |
| C. Sinding & C. E. Baastad, Halden | |
| C. Sinding, Halden | |
| C. Sivertsen, Risør | |
| C. Sonberg, Grimstad | 1864 |
| C. S. Rosenvold, Stavanger | |
| CS Shipping A/S, Kristiansand S | |
| C. Stangebye, Fredrikstad / Sarpsborg | |
| C. Steenberg, Tønsberg | |
| C. Steen, Risør | |
| C. Stousland. Skien | |
| C. Sudvig, Farsund | |
| C. Svendsen, Drammen | |
| C. Svendsen, Kristiania | |
| C. Svendsen, Mandal | |
| C. Svendsen, Risør | |
| C. Sverderup m/fl. Haugesund | |
| C. Taarvig, Fredrikstad | |
| C. Tallaksen, Farsund | |
| C.T.Bowring & Co.Ltd., London, U.K. | |
| C. Terjesen, Grimstad | 1850 årene |
| C. Terjesen, Tvedestrand | |
| C. T. Gogstad & Co, Kristiania/Oslo | |
| C. Tobiassen, Horten | |
| C. Tobiassen, Kristiansand | |
