Kumagai group (Japanese surname and place name)
- Country: Japan
- Type: Commercial
- Website: www.kumagaigumi.co.jp
- Update: 05-02
Kumagai Gumi Co., Ltd. is a Japanese general construction company founded in 1898 and headquartered in Tokyo. It operates globally and has constructed projects such as the Seikan Tunnel, the Tokuyama Dam, the Bank of China Tower in Shanghai, and CITIC Plaza in Guangzhou.
