AS Partners Co. Ltd. engages in offering nursing care homes, daily living care services, short-term residential care, and other related services. It also develops and operates nursing homes and aging real estate, and provides condominium rental services. It operates through the Senior Business and Real Estate Business segments. The Senior Business segment operates nursing homes for the elderly, day services, and short stays. The Real Estate Business segment engages in the development of nursing homes, revitalization of aging real estate, and ownership and sale of income-generating real estate. The company was founded by Takeshi Uemura on November 2, 2004 and is headquartered in Tokyo, Japan.