We have so far registered 4,560 shipyards
| Name | | Compagnie Francaise d’Entreprises Métalliques (CFEM), Dunkerque, Frankrike |
| Compania Euskalunda de Construcciones y Reparaciones de Buques S.A. Bilbao, Spania |
| Condrups Bråten Værft, Porsgrund |
| Consolidated Nav & Ind de la Mediterranee (CNIM), La Seyne, Frankrike |
| Consolidated Steel Corporation Ltd. Wilmington, CA, USA |
| Constructions Navales Espanola, Cadiz, Spania |
| Constructions Navales P. Freire SA. Vigo, Spania |
| Continental Lead & Iron, Pertusola |
| Cont. Navale Dante Itoyz, Viareggio, Italia |
| Cont. Nav. e Officine Ferroviarie, Messina, Italia |
| Cont. Nav. gecan Benetti, Viareggio, Ital |
| Cont. Riuniti dell Adriatico, Monfalcone, Italia |
| Cook, Welton & Gemmell, Hull, UK |
| Cook, Welton & Gemmell Ltd, Beverley, England |
| Cooper & Butler, Baltimore, MD, USA |
| Cooper & Slicer, Baltimore, Maryland, USA |
| Copp Bros. Port Elgin, NB. Canada |
| Cornelius Gips, Dordrecht, Nederland |
| Cornelius Smit, Alblasserdam |
| Cornelius van Duyvendijk, Hendrik Ido Ambacht, Holland |
| Cornwallis, Nova Scotia, Canada |
| Coulson, Cook & Co., Newcastle, UK |
| Cowpen Dry Dock & Ship Building Co. Ltd. Blyth, UK. |
| Cox, Bideford |
| Crabtree & Co., Great Yarmouth |
