COMPANY
Company Overview / Licenses
| Name | SENKOSHA Co., Ltd. |
|---|---|
| Chairman of the Board | Koichi Kato |
| President & CEO | Chikara Kato |
| Director | Ken Nakae |
| Sapporo Head Office [Plants#1] |
Heiwadori 17-chome, Kita 3-6, Shiroishi-ku, Sapporo, Hokkaido, 003-0029 TEL:011-862-9937 FAX:011-864-1255 |
| [Plants#2] | Heiwadori 17-chome,Kita13-11,Shiroishi-ku,Sapporo,Hokkaido,003-0029 |
| Tokyo Branch | Okudo 3-chome, 27-15, Katsushika-ku, Tokyo, 124-0022 TEL:03-5670-3195 FAX:03-5670-3196 |
| Established | May 1, 1971 |
| Incorporated | Oct 4, 1976 |
| Capital Stock | 10 million yen |
| Bank | North Pacific Bank Shiroishi Hongo Branch/Hokuriku Bank Shiroishi Branch |
| Annual Turnover | 1.2 Billion yen |
| Employees | 34 (as of November,2025) |
| Primary Business | Shops - Custom Furniture Planning - Design - Planning - Manufacture - On-Site Management - Construction |
| License | 建設業許可 北海道知事許可（般－２）石第００２５０号 |
| Certification | 国土交通省 経営力向上計画に係る認定 北開局建産第３６９号 |
| Recognition | 北海道 経営革新計画に係る承認 石商労第２３３?３５号 |
History
| 1971 | Founded by Current Chairman Koichi Kato as an exhibition construction business at 8 Chome Sakaedori, Shiroishi-ku, Sapporo |
|---|---|
| 1976 | Established as a corporate entity under the name Senkosha Co., Ltd. |
| 1980 | Registered as an structural interior builder and licensed contractor |
| 1986 | Branch office established in Tokyo's Minato-ku to allow expansion of business nationwide |
| 1987 | Plant #2 established next to Sapporo Head Office |
| 1992 | Founded cooperative organizaion Koubokukai to strengthen production organizations |
| 1996 | Opened new branch office in Tokyo's Katsushika-ku |
| 2009 | As part of international service,began taking on Chinese trainees at Sapporo Head Office |
| 2011 | Celebrated 40 years since founding and 35 since incorporation |
| 2012 | Relocated Tokyo Katsushika-ku Branch to new office building opened in same ward |
| 2016 | Celebrated 45 years since founding and 40 since incorporation |
| 2017 | Constructing a new office building and creating a new logo.Our homepage has been revamped |
| 2018 | Began taking on Vietnamese trainees at Tokyo branch |
| 2018 | Sapporo Head Office Won the 31th Nikkei New office Award |
| 2020 | Unveiled DURCH as the first original brand |
| 2020 | Won an award for DURCH at the Good Design Award 2020 |
| 2021 | Celebrated 50 years since founding and 45 since incorporation |
| 2025 | Founder Koichi Kato appointed Chairman of the Board Chikara Kato appointed President & CEO A reception to celebrate the change of president was held at Sapporo Park Hotel. |
| 2026 | Celebrated 55 years since founding and 50 since incorporation |