Quest Co., Ltd. provides IT services and solutions in Japan. It provides system development and maintenance services; IT infrastructure design, construction, maintenance, operation, and management services; application and infrastructure solutions; IT value-enhancement services; and business process outsourcing services, as well as offers IT consulting services. The company was formerly known as Keihin Keisan Center Co., Ltd. and changed its name to Quest Co., Ltd. in April 1988. Quest Co., Ltd. was incorporated in 1965 and is headquartered in Tokyo, Japan.