Medical System Network Co., Ltd. engages in the pharmaceuticals network business. It operates through the following segments: Medical Supplies Network Business, Dispensing Pharmacy Business, Rent and Facility Business, Lunch Service Business, and Other Business. The Medical Supplies Network Business segment develops and sells dispensing pharmacy systems; intermediates receiving orders of pharmaceutical products; and provides credit liquidation support. The Dispensing Pharmacy Business segment manages dispensing pharmacies. The Rent and Facility Business segment engages in the leasing of buildings for pharmacies and clinics; construction supervision of medical facilities; and operation of apartments for elderly. The Lunch Service Business segment provides food services for hospitals and welfare facilities. The Other Business segment offers home visit nursing services and sale of generic drugs. The company was founded by Inao Tajiri and Yasuyuki Okinaka on September 16, 1999 and is headquartered in Sapporo, Japan.