Sign in

Private company

Japan Agency for Marine-Earth Science and Technology

Logo: 国立研究開発法人 海洋研究開発機構, Public domain, via Wikimedia Commons3

Japanese research institute

The Japan Agency for Marine-Earth Science and Technology (国立研究開発法人海洋研究開発機構, Kokuritsu-Kenkyū-Kaihatsu-Hōjin Kaiyō Kenkyū Kaihatsu Kikō; lit. "National Research and Development Legal Entity: Oceanic Research and Development Institute"), or JAMSTEC (海洋機構), is a Japanese national research institute for marine-earth science and technology.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Apr 1, 2004Founded1
  • Industryresearch1
  • HeadquartersYokosuka1
  • Websitewww.jamstec.go.jp
  • Legal formNational Research and Development Agency1

See how the biggest companies compare on our leaderboards

JAMSTEC Headquarters Open Day P5123706
Photo: Kestrel, CC BY-SA 4.0, via Wikimedia Commons5

The Japan Agency for Marine-Earth Science and Technology (国立研究開発法人海洋研究開発機構, Kokuritsu-Kenkyū-Kaihatsu-Hōjin Kaiyō Kenkyū Kaihatsu Kikō; lit. "National Research and Development Legal Entity: Oceanic Research and Development Institute"), or JAMSTEC (海洋機構), is a Japanese national research institute for marine-earth science and technology. It was founded as Japan Marine Science and Technology Center (海洋科学技術センター) in October 1971, and became an Independent Administrative Institution administered by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) in April 2004.2

Corporate structure

Japan Agency for Marine-Earth Science and Technology sits at the top of its group. 3 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Japan Agency for Marine-Earth Science and Technology Yokosuka
    • Marine Ecosystem Research Group Subsidiary · Japan
    • Yokohama Institute for Earth Sciences Subsidiary · Japan
    • DSV Shinkai 6500 Owned · Japan
    • Hyper-Dolphin Owned · Japan
    • Kaikō Owned · Japan
    • Mirai Owned
    • Urashima Owned

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Japan Agency for Marine-Earth Science and Technology reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

  • DSV Shinkai 6500
  • Hyper-Dolphin
  • Kaikō
  • Mirai
  • Urashima

Things Wikidata records the company as owning, with the share when stated.1

Leadership

Who has led Japan Agency for Marine-Earth Science and Technology, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (1)

Products and brands

Retired vessels and vehicles

The following vessels and vehicles have retired from service.

Research Vessels: RV Natsushima, RV Kaiyo, and RV Tansei Maru

Deep Sea Research Vessel: RV Kairei

Oceanographic Research Vessel: RV Mirai

Read the full text

Manned Research Deep Submergence Vehicles: DSV Shinkai 2000

Remotely Operated Vehicles: Dolphin-3K, Kaikō, and ABISMO

Facilities

JAMSTEC is headquartered in Yokosuka and based in five other locations:

Yokohama Institute for Earth Sciences (YES) in Yokohama.

Mutsu Institute for Oceanography (MIO) in Mutsu, Aomori.

Kochi Institute for Core Sample Research (KOCHI) in Kōchi.

Global Oceanographic Data Center (GODAC) in Nago, Okinawa.

Tokyo Office.

From Wikipedia’s article on Japan Agency for Marine-Earth Science and Technology, shared under CC BY-SA 4.0.4

Subsidiaries and ownership

Subsidiaries

  • Marine Ecosystem Research Group
  • Yokohama Institute for Earth Sciences

Also owns

  • DSV Shinkai 6500
  • Hyper-Dolphin
  • Kaikō
  • Mirai
  • Urashima

From Wikidata.1

Timeline

  1. Apr 1, 2004Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5