| 1946-03 |
初代社長松井實が社員17名と日本橋兜町に三建工業合資会社を創業 |
| 1946-03 |
Our company was founded as Sanken Setsubi Kogyo, a limited partnership company, in March 1946 (21st year of Showa) starting with 17 employees. |
| 1946-03-07 |
Founder and President Minoru Matsui establishes Sanken Setsubi Kogyo joint stock company in Nihonbashi, Kabuto-cho, Tokyo. |
| 1946-07 |
Opens Sendai Business office (upgraded to Sendai Branch in1988). |
| 1947-05 |
資本金100万円をもって三建設備工業株式会社を設立 |
| 1947-05 |
In May 1947 (22nd year of Showa), it became a joint stock company under the name of Sanken Setsubi Kogyo Co., Ltd. with capital of ¥1 million. |
| 1947-05-12 |
Opens Sapporo Business office (upgraded to Hokkaido Branch in1988). |
| 1950-05 |
Opens Nagoya Business office (upgraded to Nagoya Branch in1962). |
| 1952-06 |
Opens Osaka Business office (upgraded to Osaka Branch in1956). |
| 1953-04 |
Opens Hiroshima Business office (upgraded to Chugoku Branch in1985). |
| 1954-02 |
Opens Fukuoka Business office (upgraded to Kyushu Branch in1975). |
| 1954-10 |
Moves Head office to Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo. |
| 1961-05 |
Marks 15th anniversary. |
| 1962-04 |
Opens Yokohama Business office (upgraded to Yokohama Branch in1962). |
| 1965-05 |
本社新社屋完成（東京都中央区日本橋蛎殻町） |
| 1965-05 |
New Head Office building is completed in Nihonbashi Kakigara-cho Chuo-ku Tokyo. |
| 1965-10 |
Opens Chiba Business office (upgraded to Higashikanto Branch in1962). |
| 1976-04 |
Opens Saitama Business office (upgraded to Kitakanto Branch in1962). |
| 1978-09 |
Second Head Office building is completed in Nihonbashi Hakozaki-cho Chuo-ku Tokyo. |
| 1978-11 |
President Minoru Matsui is awarded the Medal with Yellow Ribbon. |
| 1981-06 |
Seiichi Mifune is inaugurated as President and COO. |
| 1984-10 |
New building of Osaka Branch is completed. |
| 1992 |
Established a technical research center (currently, the Tsukuba-Mirai Technology Center) as a research and development center. |
| 1992-10 |
つくば総合研究所（現 つくばみらい技術センター）完成 |
| 1992-10 |
New Tsukuba Technical Center building is completed |
| 1995-11 |
President and COO Akio Teramoto is awarded the Order of the Rising Sun, Gold Rays with Rosette |
| 1996-03 |
Marks the 50th anniversary |
| 1998-02 |
Head office obtains ISO9000 certification (1994 Version) |
| 1999-02 |
ISO9000 Certification is expanded to all Branches |
| 2002-02 |
All Branches obtain ISO14000 Certification(1994 Version) |
| 2002-04 |
Tokyo Corporate Headquarters merges with the Tokyo Head Office (upgraded to Tokyo Branch in 2005) |
| 2003-09 |
ISO9000 certification is changed to 2000 Version |
| 2005-03 |
Starts the “60 Refreshment” promotion project |
| 2006-02 |
ISO14000 certification changed over to 2004 Version |
| 2006-03 |
Marks 60th anniversary |
| 2008-06 |
Eiichi Matsui inaugurated as President and COO |
| 2010-01 |
Starts renovation of the Tsukubamirai Technology Center for the realization of ZEB |
| 2012-06 |
Introduces Managing officer system |
| 2013 |
ASEAN市場開拓を目指しタイに進出 |
| 2013 |
Renovation of all the buildings of our Tsukuba-Mirai Technology Center to zero-energy buildings was completed. |
| 2013-09 |
本社・東京支店を東京都中央区新川に移転 |
| 2013-09 |
Moves Head Office and Tokyo Branch Office to Shinkawa, Chuo-ku, Tokyo |
| 2013-09 |
Ventures into Thailand with a view to cultivating the ASEAN market. |
| 2014-03 |
つくばみらい技術センターZEB化達成 |
| 2014-03 |
Tsukuba Mirai Technology Center is completely renovated to ZEB |
| 2016-01 |
平成27年度省エネ大賞 「資源エネルギー庁長官賞」を受賞 |
| 2016-01 |
Receives “Director-General’s Prize, the Agency for Natural Resources and Energy” in Heisei 27th Energy-Conservation Grand Prize |
| 2016-03 |
創業70周年 |
| 2016-03 |
タイ駐在員事務所開設 |
| 2016-03 |
Marks 70th anniversary |
| 2016-03 |
Establishes Thailand Representative Office |
| 2016-05 |
ジャカルタ駐在員事務所開設 |
| 2016-05 |
Establishes Jakarta Representative Office |
| 2016-10 |
ミャンマー現地法人設立「SANKEN SETSUBI MYANMAR CO., LTD.」 |
| 2016-10 |
Establishes “SANKEN SETSUBI MYANMAR CO., LTD.”, local subsidiary in Myanmar |
| 2017-05 |
ZEBプランナーに登録 |
| 2017-05 |
Registered as a “ZEB Planner” |
| 2017-10 |
北海道支店のZEB化を目指し建替え |
| 2017-10 |
The office building of the Hokkaido Branch reconstructed, aimed for being a Zero Energy Building |
| 2018 |
Attains the “ZEB Ready” evaluation of the BELS certification |
| 2018-10 |
北海道支店・北海道三建サービス工事の新社屋（札幌三建ビル）が完成 |
| 2018-10 |
ZEB Readyを達成しBELS認証を取得 |
| 2018-10 |
Completes the office building of Hokkaido Branch and Hokkaido Sanken Service Koji Co., Ltd. (Sapporo Sanken Building) |
| 2021-03 |
創業75周年 |
| 2021-03 |
Marks 75th anniversary |
| 2021-04 |
Achieves “Nearly ZEB” in 2021 due to operational improvement at Sapporo Sanken Building (Hokkaido Branch/Hokkaido Sanken Service Koji Co., Ltd.) |
| 2021-06 |
埼玉県北足立郡伊奈町の上尾倉庫を取り壊し、ZEB研修施設建設に向けて着工 |
| 2021-06 |
New training center under-construction aimed to achieve “ZEB” certification in existing dismantled warehouse location in ina town, Saitama |
| 2021-09 |
国連グローバル・コンパクトに署名 |
| 2021-09 |
Signs the United Nations Global Compact |
| 2021-10 |
ミャンマー現地法人閉鎖 |
| 2021-10 |
Closes the local subsidiary in Myanmar |
| 2022-01 |
パートナーシップ構築宣言を公表 |
| 2022-01 |
令和3年度省エネ大賞２部門受賞 ・省エネルギーセンター会長賞 ・審査委員会特別賞 |
| 2022-01 |
Announces the Partnership Building Declaration |
| 2022 |
Receives prizes in two categories of Reiwa 3th Energy Conservation Grand Prize |
| 2022-03 |
米国現地法人設立「Global Environmental Technologies Inc.」 |
| 2022-03 |
技術力向上と人的交流を図る 「さいたま技術センター」が完成 |
| 2022-04 |
札幌三建ビル（北海道支店・北海道三建サービス工事）で運用改善により2021年度実績でNearly ZEBを達成 |
| 2022-05 |
さいたま技術センターでZEB Readyを達成しBELS認証を取得 |
| 2022-12 |
2022年度省エネ大賞「省エネルギーセンター会長賞」を受賞 |
| 2022-12 |
Receives the “Energy Conservation Center President’s Prize” of the 2022 Energy Conservation Awards. |
| 2023-03 |
健康経営優良法人2023（大規模法人部門）に認定 |
| 2023-03 |
さいたま技術センターでCASBEE-ウェルネスオフィス「Sランク」を取得 |
| 2023-03 |
Recognized as the 2023 Excellent Corporation in Health Management (Large Corporation Division). |
| 2023-03 |
Attains the “S Rank” evaluation of the CASBEE-Wellness Office certification at Saitama Technology Center |
| 2023-10 |
首都圏の事業所でISO45001認証取得 |
| 2023-10 |
Our business office in the Tokyo metropolitan area obtains ISO 45001 certification. |
| 2023-11 |
DX認定事業者に認定 |
| 2023-11 |
Recognized as a DX Accredited Business |
| 2024-03 |
ISO45001全店認証取得 |
| 2024-03 |
本社 技術統括本部でISO19650認証取得 |
| 2024-03 |
We have obtained ISO 45001 certification for all our branches |
| 2024-03 |
Our Engineering Management Division has achieved ISO19650 certification |
| 2026-01 |
本社を東京都中央区日本橋箱崎町に移転 |
| 2026-01 |
Moves Head office to Nihonbashi Hakozaki-cho, Chuo-ku, Tokyo |
| 2026-03 |
創業80周年 |
| 2026-03 |
Marks 80th anniversary |
