Sanix Holdings Incorporated engages in the sanitation business primarily in Japan. The company operates through Home Sanitation Business, Establishment Sanitation Business, Solar Engineering Business, PV Business, New Power Business, and Environmental Resources Development Business segments. It provides termite control, foundation repair/house reinforcement, underfloor/ceiling ventilation system construction, and renovation services for households; building water supply and drainage facilities for buildings and condominiums, as well as pest control construction services. The company also sells and installs solar power generation systems and storage batteries for detached houses; and retails electric power to general households and corporations. In addition, the company engages in construction and maintenance of solar power generation systems for companies and corporations; and wholesale of solar power generation system equipment. Further, it processes a variety of waste liquids, such as organic waste liquids; and provides maintenance services related to environmental sanitation for detached houses, buildings, and condominiums. Sanix Holdings Incorporated was formerly known as Sanix Incorporated and changed its name to Sanix Holdings Incorporated in March 2025. The company was founded in 1975 and is headquartered in Fukuoka City, Japan.