- CEO
- Kenichi Mizutani
- Full Time Employees
- 783
- Sector
- Industrial services
- Industry
- Engineering & construction
- Address
- 49-10, Oi 1-chome Tokyo TY Japan 140-8515
- IPO Date
- Dec 6, 1991
- Business
- Taisei Oncho Co., Ltd. Taisei Oncho Co., Ltd. engages primarily in the equipment construction business, providing design, contracting, and construction management for air conditioning systems, plumbing and sanitation equipment, water supply and drainage facilities, electrical installations, constant temperature and humidity equipment, dehumidifiers, heat exchange systems, freezing and refrigeration equipment; it also offers comprehensive maintenance, renovation, repair services, and long-term revamping plans to enhance building asset value and energy efficiency, alongside real estate leasing of commercial and residential land and buildings, sales of air conditioners, and solar power generation operations. The company serves high-rise buildings, hospitals, hotels, shopping centers, general-purpose buildings, and industrial facilities across domestic Japanese regional segments and international markets including the United States, China, India, Philippines, Australia, and Vietnam. Founded in 1941 and headquartered at 49-10, Oi 1-chome, Shinagawa-ku, Tokyo, Japan, Taisei Oncho operates through six regional segments with 792 consolidated employees as of March 2024 under CEO Kenichi Mizutani; recent developments include a strategic cooperation agreement and shareholding investment with Searefico, a Vietnamese firm, positioning Taisei Oncho as one of Japan's top three mechanical and electrical contractors, alongside an equity buyback program completed in December 2024 acquiring 100,000 shares for ¥355.5 million.