Uraga Dock Company was a major privately owned shipyard in Uraga, Japan, which built numerous warships for the Imperial Japanese Navy.

IHI Corporation , formerly known as Ishikawajima-Harima Heavy Industries Co., Ltd. is a Japanese engineering corporation headquartered in Tokyo, Japan that produces and offers ships, space launch vehicles, aircraft engines, marine diesel engines, gas turbines, gas engines, railway systems, turbochargers for automobiles, plant engineering, industrial machinery, power station boilers and other facilities, suspension bridges and other structures.