D. I. System Co., Ltd. operates in system integration, educational services, and security solutions in Japan. It offers products such as Easy Framework 3, Easy Workflow II, Cornelius-Learning Management System, Cornelius-LMS+ Plus, Cisco Webex, and Cisco Meraki. The company also provides information system maintenance, equipment maintenance extension, and targeted email training services. Incorporated in 1997, it is headquartered in Chiyoda, Japan.