Iida Group Holdings Co., Ltd. manages its group companies which engage in the residential property sales, condominium development, contract construction, real estate leasing, and hot spring businesses. It operates through the following segments: "Hajime Construction Group", "Iida Sangyo Group", "Touei Housing Group," "Tact Home Group", "Arnest One", and "ID Home". The company was founded on November 1, 2013 and is headquartered in Tokyo, Japan.