Ichiken Corporation

Ichiken Corporation is a comprehensive construction company that has been total-producing everything from development planning to design, construction, maintenance, and renovation since its founding in 1930. It specializes in commercial facility construction, with commercial facilities accounting for about 70% of its construction work.

Founded in 1930 as Daiichi Mutual Housing Co., Ltd. Renamed Daiichi Construction Co., Ltd. in 1943, Daiichi Construction Co., Ltd. in 1946, and Daiichi Construction Industry Co., Ltd. in 1956. Opened Tokyo branch in 1963 and listed shares on the Tokyo and Osaka Stock Exchanges, Second Section. In 1979, formed a business alliance with Daiei, Inc. In 1989, changed its trade name to Ichiken Corporation. In 1990, listed on the First Section of the Tokyo and Osaka Stock Exchanges. In 2004, formed a capital alliance with Maruhan Corporation. In 2022, established subsidiary ICHIKEN Vietnam Construction Co., Ltd. and transitioned to Prime Market due to Tokyo Stock Exchange market restructuring. In 2023, selected the Standard Market of the Tokyo Stock Exchange. In 2024, made Kataoka Kogyo Co., Ltd. a subsidiary.

1. 1株式会社イチケン｜商業建築の総合建設業ichiken.co.jp
2. 2沿革｜会社情報｜株式会社イチケン｜商業建築の総合建設業ichiken.co.jp
3. 3イチケンについて｜株式会社イチケン｜商業建築の総合建設業ichiken.co.jp