We have so far registered 4,539 shipyards
| Name | | McDonalds Yard, Bideford, Prince Edward Island, Canada |
| McDougall-Duluth Company, Duluth MN, USA |
| McDougall, Prince Edward Island, Canada |
| McEachern Ship Corp., Astoria OR, USA |
| McFee, St. John, New Brunswick, Canada |
| McIntyre & Co., Newcastle, UK |
| McKay, Quebec, Canada |
| McKay & Warner, Quebec, Canada |
| McKean, Dundas, Prince Edward Island, Canada |
| McKenzie & Lauder, River John, Nova Scotia, Canada |
| McLachlan & Stockhouse St..John, New, Brunswick, Canada |
| McLeod, New Brunswick |
| McMorrin`s Yard, St. John, New Brunswick, Canada |
| Mc Putnam, Danvers, MA., USA |
| McTay Marine Ltd., Bromborough, U.K. |
| Medford, MA, USA |
| Medyilmaz Gemi Insa Sanayi ve Ticaret A.S., Karademiz Eregli |
| Melbourne |
| M. Eldrups verft, Østeraa, Tvedestrand |
| M.E. Leary, Dayspring, Nova Scotia, Canada |
| Melsomvik Skipsbyggeri, Tønsberg |
| Memel, (Klaipeda), Litauen |
| Mencke & Botter, Vegesack-Hammelwarden, Tyskland |
| Merchant S.B. Corp., Chester, Pa, USA |
| Merchant S.B. Corp, Hog Island,Pa. |
