We have so far registered 4,509 shipyards
| Name | | Høidal Mek. Verk., Volda |
| Hølens Verksted, Larvik, Norge |
| Høllen i Søgne |
| Høllen Skipsverft, Høllen, Søgne |
| Høllen,Søgne |
| Høvåg |
| Høysand, Skjebergkilen |
| IHC Gusto N. V., Schiedam, Nederland, |
| IHDA S.B. Krimpen,Krimpen aan de Lek |
| I. & I. Samson, Quebec, Canada |
| I.J. Oliver, Three Sisters, Windsor, Nova Scotia, Canada |
| IJsselwerf (W. van Goor), Kampen, Holland |
| I. J. & W. Olive, St. John, N.B. Canada |
| I. Kings, St. John, New Brunswick, Canada. |
| Imabari Shipbuilding Co. Ltd KG, Marugame Shipyard, Marugame, Japan |
| Imabari Zosen K.K., Imabari, Japan |
| Imabari Zosen K.K., Marugame, Japan |
| Imamura Zosen, Kure,Japan |
| Incat Australia Pty. Ltd., Hobart, Tasmania, Australia |
| Industrie Navali Meccaniche Affini, La Spezia, Italia |
| Ingalls Ship Building Corp. Decatur, Alabama, USA |
| Ingalls Ship Building, Corp. Pascagoula, Miss. USA |
| International Ship Building Coreporation, Pascagoula, Miss. USA |
| I. Pimblott Weaver S.Y., Northwich, UK |
| Ira S. Bushey & Sons Inc., Brooklyn, NY, USA |
