Vi har så langt registrert 4 561 verft
| Navn | | J. Albin, Salmon River, Nova Scotia, Canada |
| J. A. Liedberg, Sundsvall, Sverige |
| J.A. Lovitt, Tynemouth, New Brunswick, Canada |
| James Brown & Hammer Ltd. Durban, Syd Afrika. |
| James Crow, Clifton, Nova Scotia, Canada |
| James & David Birnie, Montrose, Skottland |
| James Edwards, South Shields, UK |
| James Hardie, Southwick, Sunderland |
| James Laing, Sunderland, England |
| James Lamont & Co. Ltd., Port Glasgow, UK |
| James McNairn, Buctouche, New Brunswick |
| James Young, South Shields, UK |
| J.A. Meyer, Lubeck, Tyskland |
| J. Andreassen, Kragerø |
| Jan F. Meursing Werft, Amsterdam, Holland |
| Jan Schouten, Dordrecht, Holland |
| Jansens Værft, Tønsberg |
| Janssen & Schmilinsky AG, Hamburg |
| Jan van Duijvendijk, Lekkerkerk, Holland |
| Jardine Brothers, Kingston, New Brunswick, Canada |
| Jardine, Richibucto, New Brunswick, Canada |
| Jarlsø Verft, Tønsberg |
| J.A. Robb, Baltimore, USA |
| Jas. Desmond, Miramichi, New Brunswick, Canada |
| Jas. Mosher, Newport, Avondale, Nova Scotia, Canada |
