| 1974 |
東京ガス・エンジニアリング株式会社設立 |
| 1974 |
Establishment of Tokyo Gas Engineering Co., Ltd. |
| 1976 |
Begins the taking full-scale construction orders such as large industrial furnaces |
| 1980 |
海外案件第1号として、台湾のガスホルダー建設 |
| 1980 |
Construction order for gas holders for Taiwan received as the first order from overseas. |
| 1983 |
コンピュータ・マッピングシステムを汎用商品化 |
| 1983 |
Construction order for the stations of Shin Negishi Trunk Line and Yokohama Trunk Line (second phase) received from Tokyo Gas. |
| 1989 |
水道マッピングシステム株式会社設立 |
| 1989 |
Establishment of Aqueduct Mapping System Co., Ltd. |
| 1993 |
仙台市ガス局 港工場LNG受入基地建設工事一括受注 |
| 1993 |
Computer Mapping System made more generic and commercialized. |
| 2002 |
東京ガスから分社化により株式会社エネルギーアドバンス設立 |
| 2002 |
Establishment of Energy Advance Co., Ltd. The primary business area is focused on District Heating and Cooling. |
| 2003 |
エネルギーサービスプロバイダー（ESP）第一号稼働 |
| 2003 |
Begins the first On-site Energy Service. |
| 2007 |
東京ガス 千葉～鹿島ラインステーション建設工事受注 |
| 2007 |
Construction order for Chiba-Kashima Line Station received from Tokyo Gas. |
| 2008 |
TGE上海（現TGES上海）を設立 |
| 2008 |
Establishment of TGE Shanghai (now TGES Shanghai) |
| 2010 |
東京ガス 新根岸・横浜幹線Ⅱ期ステーション建設工事受注 |
| 2010 |
Construction order for the stations of Shin Negishi Trunk Line and Yokohama Trunk Line (second phase) received from Tokyo Gas. |
| 2011 |
東京ガス 日立LNG基地建設工事受注 |
| 2011 |
Construction order for Hitachi LNG Terminal received from Tokyo Gas. |
| 2012 |
新宿地域冷暖房センターより都庁への送電開始 |
| 2013 |
ガスマレーシアエネルギーアドバンス社を設立 |
| 2013 |
Establishment of GAS MALAYSIA ENERGY ADVANCE Sdn. Bhd. in Malaysia, which is a joint venture company of Energy Advance Co., Ltd. and Gas Malaysia Berhad. |
| 2014 |
田町地区でスマートエネルギーネットワークによるエネルギー供給開始 |
| 2014 |
Begins Tamachi Sma Ene Park, a smart energy network project. |
| 2014 |
Received Minister' s Award for Economy, Trade and Industry in the FY2016 Energy Conservation Grand Prize. |
| 2015 |
株式会社エネルギーアドバンスと東京ガス・エンジニアリング株式会社が統合し、東京ガスエンジニアリングソリューションズ株式会社を設立 |
| 2015 |
Establishment of Tokyo Gas Engineering Solutions Corporation by the merger of Energy Advance Co., Ltd. and Tokyo Gas Engineering Co., Ltd. |
| 2015 |
Begins the operation of Higashishinagawa District Heating and Cooling Center. |
| 2015 |
Establishment of TGES America Ltd. |
| 2016 |
本社を汐留芝離宮ビルディングへ移転 |
| 2016 |
Relocation of the head office to Shiodome Shibarikyu Building. |
| 2016 |
Received contract for the Project Management Consultancy (PMC) for Nong Fab LNG Terminal in Thailand. |
| 2017 |
九州営業所・長野営業所を開設 |
| 2017 |
Launched new sales branches in Kyushu and Nagano. |
| 2017 |
Construction order for the Ibaraki Trunk Line received from Tokyo Gas. |
| 2018 |
新居浜LNG株式会社を設立 |
| 2018 |
Establishment of Niihama LNG Co., Ltd |
| 2018 |
Launched Okinawa sales branches |
| 2018 |
The Solar Advance starts offering self-consumption solar power generation system introduction services. |
| 2019 |
糸満市浄化センターのバイオガスによる発電事業の供給開始 |
| 2019 |
Commencement of power supply by Itoman Bio-Energy Co., Ltd. (invested by TGES) using biogas from Itoman Purification Center. |
| 2019 |
Participation in Thailand's first urban cooling and power distribution business in One Bangkok, located at the center of Bangkok, Thailand |
| 2019 |
Start of the smart energy business in Kiyohara Industrial Park. |
| 2020 |
田町スマートエネルギーネットワークプロジェクトが完成 |
| 2020 |
Accomplished Tamachi Smart Energy Network Project. |
| 2020 |
Start of the smart energy network at Kirameki Terrace (Kagoshima City) |
| 2020 |
Integration of TGES Smart Energy Service Co., Ltd. |
| 2021 |
北海道営業所を開設 |
| 2021 |
Launched Hokkaido sales branches |
| 2021 |
50th Anniversary of Shinjuku District Heating and Cooling Center. |
| 2021 |
Start of the operation of Nakagusuku Biomass Power Plant (invested by TGES) in Uruma, Okinawa Prefecture |
| 2021 |
Start of the operation of 3,800kW self-consumption type solar power generation facility for Honda Motor Co., Ltd. Kumamoto Factory |
| 2021 |
Start of the self-wheeling service using the solar power generation service "Solar Advance" for the logistic center of Tokyo Tatemono Co.,Ltd. |
| 2022 |
A&Tm株式会社を設立 |
| 2022 |
Establishment of the joint venture of A&Tm Co. Ltd. |
| 2022 |
Received Transfer of Tokyo Gas Chemicals Co., Ltd. and Japan Super Freeze Co.,Ltd. from Tokyo Gas Liquid Holdings Co., Ltd. to TGES |
| 2022 |
Start of the gas supply by Niihama LNG Co., Ltd. |
| 2022 |
Begins operation of TOYOSU-District Smart Energy Network transferred from Tokyo Gas Co.Ltd. |
| 2023 |
ソリューション事業ブランド「IGNITURE（イグニチャー）」の立ち上げ |
| 2023 |
Launch of solution business brand “IGNITURE” |
| 2023 |
Transferred Capty Solutions Co., Ltd. (formerly Capty Co., Ltd.) from Tokyo Gas Co., Ltd. |
| 2023 |
Integration of Tokyo Energy Service Co., Ltd. and commencement of operation of the Ebisu District Heating and Cooling Center |
| 2024 |
2025年3月、S＆Cソリューションズ株式会社（旧社名IDECシステムズ＆コントロールズ）をグループに迎える |
| 2025 |
2025年度 : 新居浜LNG株式会社がLNGローリー供給を開始 |
