Giken Kogyo Co., Ltd. is mainly engaged in construction and civil engineering business. The Civil Engineering-related segment is engaged in the design and construction of civil engineering works, including slope protection works and inclination countermeasure works. The Construction-related segment is engaged in the engineering works of radiation, electromagnetic wave, magnetism, acoustic, sound-proof facilities, radio wave absorption and electromagnetic environment measurement. It also sells construction materials. The Mold Leasing-related segment leases steel forms, and sells and secondary concrete products and related construction materials. The Housing segment is engaged in the sale of detached houses and building lots, the contracted construction and renovation of custom homes. The Real Estate Leasing segment leases office buildings, residential condominiums and other real estate properties. As of March 31, the Company had one subsidiary.