1955	Started in May as a contractor, Shiohama Gumi.
1971	Founded as Shiohama Industry Ltd.
1976	Changed its trade name to Shiohama Industry Corporation.
1981	Opened the Tsuruga factory.
1984	Opened the Tokyo office and Mihama factory and changed the Tsuruga factory to the equipment center.
1984	Approved by the minister.
1991	Opened the Tokyo and Osaka branches.
1992	Completed the quake-proof head office building.
1995	Opened the Nagoya branch.
2000	Acquired ISO9001 certification.
2002	Acquired ISO14001 certification.
2005	Added a quake-absorbing structure to its head office building.
2012	Opened the Tohoku branch.
2013	Expanded the Tokyo branch.
2014	Opened the Tokyo headquarters.
2016	Registered in Fukui Women’s Active Engagement Promotion Company Plus (+).
2019	Opened the Tokyo Technology Office.
2021	Integrated the Tokyo headquarters, Tokyo branch, and Tokyo Technology Office into the Tokyo main office.
2022	Opened the Fukuoka office.
2022	Completed the Tsuruga head office building with seismic control.