Sakai Holdings Co., Ltd. engages in the renewable energy business. It operates through the following segments: Renewable Energy, Mobile Communication Equipment Sales-Related, Insurance Agency, Funeral, Real Estate Rental and Management, and Business Solution. The Renewable Energy segment handles solar power electricity sales. The Mobile Communication Equipment Sales-Related segment sells mobile communication equipment and brokers subscription contracts to general users. The Insurance Agency segment deals with medical insurance. The Funeral segment manages the overall execution of funerals for general customers, memorial services, and annual memorial services. The Real Estate Rental and Management segment conducts rental solicitations for real estate properties such as parking lots. The Business Solution segment includes the sale of mobile communication equipment and acts as an intermediary for subscriptions contracts for mobile communication services to corporations. The company was founded on March 19, 1991 and is headquartered in Nagoya, Japan.