Giken Holdings Co., Ltd. manages its group of companies that engage in civil engineering and construction works. It operates through the following segments: Civil Engineering-related, Architecture-related, Formwork Lending-related, and Others. The Civil Engineering-related segment offers civil engineering works such as slope protection and steep slope measurement. The Architecture-related segment sells building construction materials such as equipment related to radiation, electromagnetic wave shields, and radio wave absorbers. The Formwork Lending-related segment rents out construction materials and steel formwork for the manufacture of wave reduction blocks. The Others segment includes overseas and real estate leasing businesses. The company was founded on January 9, 2018 and is headquartered in Tokyo, Japan.