| Company Name |
TAISEI ONCHO CO., LTD. |
| Listed Market |
Standard Market of the Tokyo Stock Exchange: code-1904 |
| Founded |
April 3, 1941 |
| Established |
December 22, 1952 |
| Capital |
5,195,057,500 yen |
| Head Office |
6F, OIMACHI TRACKS BUSINESS TOWER, 2-1-21 Hiromachi, Shinagawa-ku,
Tokyo 140-0005, Japan. |
| Business Operation |
Design and Contract for Air Conditioning, Plumbing, Electrical Installation Work, Maintenance and Renovation services |
| Employees |
Consolidated: 783 / Non-consolidated: 581 (as of March 31, 2026) |
| CEO |
KENICHI MIZUTANI |
