Daibiru Corporation, together with its subsidiaries, owns, operates, manages, and leases real estate properties in Japan. It owns and leases 29 properties, including offices, hotel buildings, and retail complexes in central Tokyo, Osaka, and Sapporo. The company also develops and leases residence halls for students; and apartment buildings for business people on temporary assignment, as well as condominiums for families. In addition, it offers facilities, cleaning, and security management services; and real estate agency services. The company was formerly known as Osaka Tatemono Co., Ltd. and changed its name to Daibiru Corporation in January 1992. The company was incorporated in 1923 and is headquartered in Osaka, Japan. Daibiru Corporation is a subsidiary of Mitsui O.S.K. Lines, Ltd.