Quest Co., Ltd. delivers a comprehensive array of IT services and solutions throughout Japan. The company specializes in developing and maintaining systems, alongside designing, constructing, operating, and managing IT infrastructure. Its offerings extend to advanced application and infrastructure solutions, services aimed at enhancing IT value, and comprehensive business process outsourcing. Additionally, Quest provides expert IT consulting. Established in 1965 as Keihin Keisan Center Co., Ltd., the company adopted the Quest Co., Ltd. name in April 1988 and is headquartered in Tokyo, Japan. It serves a broad range of industries, including manufacturing, finance, telecommunication, and the public sector, and has a notable track record of continuous profitability. The firm has seen consistent growth, achieving record-high revenue and operating profit for multiple consecutive terms, with its revenue reaching 15.7 billion JPY as of June 30, 2025.