Daiho Corporation engages in the civil engineering and construction business in Japan and internationally. It installs various underground structures, including bridge foundations; excavates underground soil by using a tube-shaped tunnel excavator; manufactures breakwater structures, and maintains, repairs, and renews existing structures. The company is also involved in the design, supervision, and consultation of civil engineering and construction works; research, survey, and design of hydroelectric power generation, and regional and urban development; design, manufacture, repair, sale, and lease of construction machinery; soil and water purification; and industrial waste collection, transportation, treatment, and reuse businesses. In addition, it engages in the real estate development, sale, leasing, management, and brokerage business. Daiho Corporation was incorporated in 1949 and is headquartered in Chuo, Japan.