Stemcell Holdings, Inc., through its subsidiary, Stemcell Co., Ltd., engages in the regenerative medicine-related business. It provides technical assistance services to the culturing, storing, and delivery of stem cells; and administrative and consulting services to clinics. The company offers two different options for stem cell regenerative therapy, including autologous adipose derived mesenchymal stem cells and natural killer cells. It also provides coordination services to facilitate its stem cell culturing business, which comprise the introduction of patients to clinics, arranging patients' schedules, and translating between patients and clinics due to language barriers. In addition, Stemcell Holdings, Inc. offers Internet marketing services through search engine optimization for clinics; and property and equipment rental services. The company was formerly known as Perfect Acquisition, Inc., and changed its name to Stemcell Holdings, Inc. in January 2016. Stemcell Holdings, Inc. was founded in 2015 and is based in Tokyo, Japan. as of May 2, 2016, Stemcell Holdings, Inc. operates as a subsidiary of Primavera Singa Pte Ltd.