CellSource Co., Ltd. engages in regenerative medicine related business. Its business includes fat, blood-derived tissue and cell processing service. It also offers regenerative medicine legal support service, sale of medical device, cosmetics and facial products. It operates through the Regenerative Medicine-related business segments. The Regenerative Medicine-related segment handles stem cell processing contract service, blood derived processing contract service and consulting service. It also sells equipment necessary for medical institutions to collect fat from patients. The company was founded on November 30, 2015 and is headquartered in Tokyo, Japan.