Quest Co., Ltd. provides IT services and solutions in Japan. It provides system development and maintenance services, including system design, development, implementation, and maintenance; construction, maintenance, operation, and management of IT infrastructures; and business process outsourcing services to support back-office and business management duties, as well as offers IT value enhancement 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 founded in 1965 and is headquartered in Tokyo, Japan.