ZUNGWON EN-SYS, Inc. engages in the provision of systems integration (SI) services. It operates through the following Business Divisions: SI, Customer Support, and the Other. The SI division provides system, application for schools, network engineering, and other services. The Customer Support division offers maintenance and other services. The Other division provides rental service. The company was founded on June 27, 1969 and is headquartered in Seoul, South Korea.