Kumagai Gumi Co., Ltd. is a Japanese construction company specializing in civil engineering and building projects. It provides comprehensive services including analysis, design, supervision, and execution of complex infrastructure developments such as roads, railways, airports, water systems, and other public facilities. The company also manufactures and sells construction materials and machinery to support its operations. In addition to core construction activities, which form the bulk of its business, Kumagai Gumi Co., Ltd. develops residential and commercial real estate complexes, either operating them directly or acting as a broker for sales. These efforts span various sectors, contributing to urban development and public infrastructure in Japan. Headquartered in Tokyo with registered offices in Fukui, the company delivers engineering and technical expertise throughout the project lifecycle, playing a vital role in the industrials sector focused on engineering and construction.