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9531 on Tokyo Stock Exchange

Tokyo Gas

Logo: Tōkyō Gas, Public domain, via Wikimedia Commons4

Japanese natural gas utility company

Tokyo Gas Co., Ltd. (東京瓦斯（ガス）株式会社, Tōkyō Gasu Kabushiki-gaisha; TYO: 9531), founded in 1885, is the primary provider of natural gas to the main cities of Tokyo, Kanagawa, Saitama, Chiba, Ibaraki, Tochigi, Gunma, Yamanashi, and Nagano. As of 2012, Tokyo Gas is the largest natural gas utility in Japan.2 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

Oct 1, 1895Founded1

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  • Ticker9531 on Tokyo Stock Exchange1
  • Industrynatural gas field1
  • HeadquartersMinato1
  • Websitewww.tokyo-gas.co.jp
  • Legal formkabushiki gaisha1
  • Listed onNagoya Stock Exchange (9531), Tokyo Stock Exchange (9531)1
  • LEI353800678EIJLOQSWZ833
  • StatusActive3
  • LEI statusIssued and current3
  • Registered address海岸一丁目５番２０号, 105-8527 東京都 港区, Japan3
  • Registered withLegal Affairs Bureau, 0104-01-0205163

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Tokyo Gas building and Harumi Passenger ship terminal from Tokyo Tower
Photo: No machine-readable author provided. Chris 73 assumed (based on copyright claims)., CC BY-SA 3.0, via Wikimedia Commons6

Tokyo Gas Co., Ltd. (東京瓦斯（ガス）株式会社, Tōkyō Gasu Kabushiki-gaisha; TYO: 9531), founded in 1885, is the primary provider of natural gas to the main cities of Tokyo, Kanagawa, Saitama, Chiba, Ibaraki, Tochigi, Gunma, Yamanashi, and Nagano. As of 2012, Tokyo Gas is the largest natural gas utility in Japan.2

Corporate structure

Tokyo Gas sits at the top of its group. 3 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Tokyo Gas 東京都 港区, Japan

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

October 1, 1885, Tokyo Gas was founded by Shibusawa Eiichi and Asano Sōichirō by acquiring business of Tokyo Prefecture Gas Bureau.

1912, Tokyo Gas merged with Chiyoda Gas.

1913, Tokyo Gas merged with Kawasaki Gas.

1944, Tokyo Gas acquired business of Yokohama City Gas Bureau.

May 2016, Tokyo Gas merged with Chiba Gas, Tsukuba Gakuen Gas Corporation, and Miho Gas.

December 2023, Tokyo Gas acquired a US-based natural gas producer, Rockcliff Energy, from Quantum Energy Partners for $2.7 billion.

From Wikipedia’s article on Tokyo Gas, shared under CC BY-SA 4.0.5

Timeline

  1. Oct 1, 1895Founded Founded1

Sources

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

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