| 会社名 | Group | 親会社 | 子会社 | 得意先 | 仕入先 | 業務提携 | 銀行等 | 株主等 |
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| YASUI ARCHITECTS & ENGINEERS, INC. | ||||||||
| 株式会社安井ファシリティーズ | ||||||||
| VNCC (Vietnam National Construction Consultants Corporation) | ||||||||
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| 株式会社大島設計 | ||||||||
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Takeo Yasui started a design office in Osaka.
APR 1924 Takeo Yasui started a design office in Osaka.
Opened Tokyo Office.
FEB 1926 Opened Tokyo Office.
Reorganized as YASUI ARCHITECTS & ENGINEERS, INC. and Takeo Yasui appointed President.
JAN 1951 Reorganized as YASUI ARCHITECTS & ENGINEERS, INC. and Takeo Yasui appointed President.
Toshimichi Mikuni appointed President after Takeo Yasui passed away.
JUN 1955 Toshimichi Mikuni appointed President after Takeo Yasui passed away.
Opened Nagoya Office.
MAR 1960 Opened Nagoya Office.
Shoichi Sano appointed President.
APR 1961 Shoichi Sano appointed President.
Opened Osaka Office after institutional reforms.
DEC 1970 Opened Osaka Office after institutional reforms.
Opened Kyushu Branch.
SEP 1971 Opened Kyushu Branch.
Opened Hiroshima Branch.
APR 1985 Opened Hiroshima Branch.
Shoichi Sano appointed Chair of the Board, he passed away in 2014, and Masanobu Kunugiza appointed President.
JAN 1989 Shoichi Sano appointed Chair of the Board, he passed away in 2014, and Masanobu Kunugiza appointed President.
Yoshihiko Sano appointed President.
MAY 1997 Yoshihiko Sano appointed President.
Acquired ISO 9001 certification.
JAN 2000 Acquired ISO 9001 certification.
Established YASUI FACILITIES, INC.
SEP 2011 Established YASUI FACILITIES, INC.
Opened Tohoku Solution Center.
JAN 2013 Opened Tohoku Solution Center.
Opened Taiwan Branch.
JAN 2014 Opened Taiwan Branch.
Established YASUI SEKKEI Vietnam, LTD., local subsidiary in Vietnam.
JAN 2017 Established YASUI SEKKEI VIETNAM, LTD., local subsidiary in Vietnam.
Opened Ho Chi Minh Office.
FEB 2020 Opened Ho Chi Minh Office.
The online Open Company event scheduled for November 20, 2026 (Friday) from 18:00 to 19:00 has opened its application period. After registering via the form and creating a My Page, you can apply. The participation URL will be sent to applicants by email at a later date.
The East Gate of the 2025 Japan International Expo received the 2026 Good Design Award organized by the Japan Design Promotion Foundation.
Anai Architecture Design Office promotes an environment where job seekers can participate in recruitment activities with confidence by respecting their personality and dignity. The office has established a "Policy to Prevent Harassment in Recruitment Activities" to prevent all forms of harassment, including sexual harassment. It will continue to strive for fair and secure recruitment processes.
At the TRC booth of the "Library Expo 2026" held from October 20 to 22, 2026, the prototype of the electric mobile library vehicle "e-LiBOON" will be unveiled for the first time. The vehicle is based on a small BEV truck from Hino Motors, and the concept development and basic design were handled by Yasui Architecture & Design Office. On October 21 and 22, a presentation of the "e-LiBOON Basic Plan" will also be held.
On Friday, December 18, the Japan Planning Institute will host a seminar in which Kazuyuki Shibata, Director of Digital × Design Works at Yasui Architecture Design Office, will speak. He will present case studies such as transitioning from images to 3D/BIM and AI design tools, and discuss how generative AI is changing the design process, as well as the role, judgment, and responsibility of designers in the AI era.
On Saturday, November 21, the "Great Osaka and Kato An" program, in partnership with Ikefes, will be held to commemorate the 150th birth anniversary and 80th death anniversary of Kato An. The commemorative lecture "Reflecting on Kato An's Life" and the commemorative symposium will feature Mr. Yoshihiko Sano, CEO and President of Yasui Architectural Design Office, as a speaker.
The underground station West Kobe-Yamate Line West Kobe Central Station, which our company was involved in designing, received the Wood Design Award 2026 (hosted by the Japan Wood Design Association).
Kyoto City Kōshiro-ryō Elementary and Middle School received the 2026 Wood Design Award hosted by the Japan Wood Design Association.
A column by Kazuyuki Shintō, Director of Digital × Design Works, on architectural design and AI has been published in the specialized web media "BIMedia" covering digitalization of the construction industry and BIM.
Our director Yoshinori Shinohara will participate in the NPO Child Health Forum as an external organization activity. The Child Health Forum will hold the "Children Medical Academy" on Saturday, October 17, 2026, and Sunday, October 18, 2026. The venue is MOZO Wonder City, and MOZO app members can enter for free (membership can be obtained on the day).