OTSUKA CORP. engages in the provision of information technology support services. It operates through the System Integration, and Service and Support segments. The System Integration segment provides system services such as consulting, system design and development, transport, installation work, and network construction. The Service and Support segment offers total support for business operations as well as supply, hardware and software maintenance, telephone support, and outsourcing for installed systems. The company was founded by Minoru Otsuka on July 17, 1961 and is headquartered in Tokyo, Japan.