Vi har så langt registrert 19 632 rederier
| Navn | Grunnlagt | | Colbensen,Torkel, Spind | |
| Collett Andreassen, Svolvær | |
| Collett & Co. Kristiania | |
| Colonial Steam Ships, Ltd. v/ R. Scott Misener. | |
| Colonial Sugar Refining Co Ltd, Sydney, N.S.W | |
| Color Line A/S, Bergen | |
| Color Line A/S, Oslo | |
| Color Line A/S, Sandefjord | |
| Color Line, Kristiansand | |
| Color Line Marine A/S, Oslo | |
| Color Line Transport A/S, Kristiansand | |
| C. Olsen, Kristiansand | |
| C. Olsen & Mathiesen, Tønsberg | |
| C. Olsen, Moss | |
| C. Olsen & Sønner, Tvedestrand | |
| C. Olsen, Ålesund | |
| Columbia River Bar Pilots | |
| Columbia Shipmanagement Ltd, Valetta | |
| C. O. Lund, Drammen | |
| Commercial Molasses Corperation, New York, NY. USA | |
| Commissioner for Natural Resources, Govt. of New Foundland | |
| Commodore Cruise Line,Panama | |
| Common Bros.,Newcastle, Uk. | |
| Commonvealt of Australia ( Dept. of Commerce) | |
| Compania Argentina de Pesca, Buenos Aires | 1904 |
