We have so far registered 4,509 shipyards
| Name | | 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 |
| J. Vester,Grenaa,Danmark |
| J. Vos & Zoon, Groningen, Holland |
| J. Watson, Sunderland, Uk |
| J W & A Upham, Brixham |
| J. & W.B. Harvey,Littlehampton |
| J.W. Carmichael, New Glasgow, Nova Scotia |
| J & W Dudgeon, London, UK |
| J. Wheeler, Cork, UK |
| J. White & Co. Bath, Maine, USA |
| J. W. Klawitter, Danzig, Polen |
| J.W. Kuiper, Oude Pekela, |
| J.W. Richards, Bideford, Prince Edwards Island, Canada |
| J. W. Sadelkow, Greifswald, Tyskland |
| J. & Z. Simonsen, Stathelle, Brevik |
| Jørgen Bang, Grimstad |
| Jørgen Børresen, Hegdeskjær, Grimstad |
