Ships built by Sumitomo Heavy Industries

JDS Aokumo (DD-119) was the fourth ship of Yamagumo-class destroyers.

JS Sendai (DE-232) is the fourth ship of the Abukuma-class destroyer escorts. She was commissioned on 26 January 1990.

IRIS Makran (Persian: مکران) is the first and only forward base ship of the Islamic Republic of Iran Navy, in service with its Southern Fleet since 2021 and named after a coastal region in southeastern Iran.

JS Asayuki (DD-132) was a Hatsuyuki-class destroyer of the Japanese Maritime Self-Defense Force.

JS Asuka (ASE-6102) is an experimental ship of the Japan Maritime Self-Defense Force. The vessel was constructed by Sumitomo Heavy Industries of Tokyo, Japan and was launched on 21 June 1994. Asuka was commissioned on 22 March 1995 and since then has conducted performance confirmation tests for integrated navigation systems.

La Noumbi is a floating production storage and offloading (FPSO) unit operated by Perenco. The vessel, converted from the former Finnish Aframax crude oil tanker Tempera by Keppel Corporation, will replace an older FPSO unit in the Yombo field off the Republic of Congo in 2018.

MT Petali is an Aframax crude oil tanker. Formerly known as Mastera for almost two decades and briefly as Mikines in early 2022 and Alma until September 2023, she and her sister ship Tempera were the first ships to utilize the double acting tanker (DAT) concept in which the vessel is designed to travel ahead in open water and astern in severe ice conditions. The icebreaking tanker was built to transport crude oil year-round from the Russian oil terminal in Primorsk to Neste Oil refineries in Porvoo and Naantali.

LP Odyssey is a self-propelled semi-submersible mobile spacecraft launch platform converted from a mobile drilling rig in 1997.

TT Seawise Giant—earlier Oppama; later Happy Giant, Jahre Viking, Knock Nevis, and Mont—was a ULCC supertanker and the longest self-propelled ship in history. It was built in 1974–1979 by Sumitomo Heavy Industries in Yokosuka, Kanagawa, Japan. The ship possessed the greatest deadweight tonnage ever recorded. Fully laden, her displacement was 657,019 tonnes.

IRIS Makran (Persian: مکران) is the lead ship of Makran class of forward base ship of the Islamic Republic of Iran Navy. Ships of this class are in service with its Southern Fleet since 2021 and are named after coastal region in southeastern Iran.