Nippon Kanzai. 

Nippon Kanzai Co., Ltd. provides building management and operation, residential management and operation, environmental facility management, and real estate fund management services in Japan. It offers building management services, including safety, equipment, cash, energy, and other management services; and cleaning, security, liaison, and indoor operation, as well as undertakes administrative and building repair works. The company also provides engineering services comprising building and seismic diagnosis, repair work, repair plan, database, and engineering report services. In addition, it is involved in the property and residential management, management consulting, temporary staffing, and other businesses. The company was incorporated in 1965 and is headquartered in Tokyo, Japan.