We have so far registered 4,539 shipyards
| Name | | J. Stenersen, Risør |
| J. Stewart, St. John, New Brunswick, Canada |
| J. Storviks Mek. Verksted, Kristiansund |
| J.S. Watson, Gainsborough |
| J. S. White & Co. Ltd. Cowes, UK. |
| J. Taylor, Chelsea, Boston, MA, USA |
| J.T. Fortu, Medford, MA, USA |
| J.T. Foster, Medford, Mass., USA |
| J.T. Fryde, Fjære, Grimstad |
| J. Th. Winming & Co, Gideon, Holland |
| J.Th. Winming & Co., Groningen, Nederland |
| J. Titus, Rothesay, New Brunswick, Canada |
| J. Trakey, Maitland, Nova Scotia, Canada |
| J.Trumphy,Bradbenken, Bergen |
| J. Trumphy & Søn, Bradbenken, Bergen |
| J.T. Strenge & Sohn, Hammelwarden, Tyskland |
| J.U. Hägglund, Sundsvall, Sverige |
| Julius Diedricht Schiffsw., Oldersum |
| Julius Tjørve, Farsund |
| Julius Tjørve, Fevik |
| Julius Tjørve, Lista Båtbyggeri, Lista pr. Farsund |
| Jumelet Scheepsbouw, Ijmuiden |
| J. Undalen, Valen, Sunnhordland |
| Jurong Shipyatd Ltd., Singapore |
| Just Wessels Verft, Kyrseterøra, Norge |
