We have so far registered 4,509 shipyards
| Name | | 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. |
| Merchant Ship Building Corp., Harriman, Philadelphia, PA. USA |
| Merrill Stevens S.B.Corp., Jacsonville FL, USA |
| Metalships & Docks SA, Vigo, Spania |
| Metcalf & Norris, Damariscotta MA, USA |
| Meteghan, Nova Scotia, Canada |
| Meyer Werft Gmbh, Papenburg, Tyskland |
| Meyer Werft, Warnemunde |
| M. Forbes, Argyle, Nova Scotia, Canada |
| M.G. Amsinck, Hamburg |
| M. & G. Hohensee, Kabli, Orajoe, Estland |
| MHD Angyalfäldi Gyaregysage,Budapest |
| Middelburg, Nederland |
| Middlebrough, UK |
| Middle Dock, South Shields, UK |
| Midland Ship Yard, Midland |
| Midwest, Statsbygd, Sør-Trøndelag |
| Miho Shipyard, Shimizu, Japan |
| Miho Zosensho K.K., Shimizu |
