Ship Builders
ICE Marine
- Southampton, United Kingdom
Ice Star
- Groningen, Netherlands
IHC de Klop
- Sliedrecht, Netherlands
IHC Delta Shipyard
- Sliedrecht, Netherlands
IHC Gusto
- Schiedam and Slikkerveer, Netherlands
IHC Holland
- Kinderdijk, Krimpen a/d IJssel and Sliedrecht, Netherlands
IHC Sliedrecht
- Sliedrecht, Netherlands
IHC Smit
- Kinderdijk, Netherlands
IHC Verschure
- Amsterdam, Netherlands
IHI Marine United
- Aioi, Chita, Kure, Nagoya, Tokyo and Yokohama, Japan
Scheepswerf & Machinefabriek Ijsselwerf
- Capelle a/d IJssel, Netherlands
Imabari Zosen
- Imabari, Japan
Imabari Zosen
- Marugame, Japan
Imabari Zosen
- Saijo, Japan
Imai Seisakusho
- Iwaki, Japan
Imamura Zosen
- Kure, Japan
Impala Marine
- Twickenham, United Kingdom
Incat Tasmania
- Hobart, Tasmania
Inchon Engineering & Shipbuilding Co.
- Inchon, South Korea
Ingalls Shipbuilding Corp.
- Pascagoula, Ms, United States of America
A. & J. Inglis
- Pointhouse, United Kingdom
Cantiere Navale Industrie Navali Meccaniche Affini
- La Spezia, Italy
INP Heavy Industries Co.
- Ulsan, South Korea
RNLI Inshore Lifeboat Centre
- East Cowes, IOW, United Kingdom
International Catamarans
- Hobart, Tasmania
Intervak Scheepswerf & Constructie
- Harlingen, Netherlands
Richard Irvin and Sons
- Peterhead, United Kingdom
Ishikawajima do Brasil Estaleiros
- Rio de Janeiro, Brazil
Ishikawajima-Harima Heavy Industries Co.
- Kure, Japan
Istanbul Shipyard
- Tuzla, Istanbul, Turkey
Italcantieri-Cantieri Navali Italiani
- Monfalcone, Italy
Iwagi Zosen
- Iwagi, Japan
IZAR
- El Ferrol, Spain
IZAR
- Sevilla, Spain
Japan Marine United Corporation
- Kure, Japan