Sanki Engineering Co., Ltd. engages in the provision of building construction and engineering services. The company is headquartered in Chuo-Ku, Tokyo-To and currently employs 2,653 full-time employees. The company operates through four business segments. The Building Equipment Business segment is involved in general building equipment business including building air conditioners and sanitation, industrial air conditioners mainly for factories, electrical equipment, facility systems, and others. The Machinery Systems Business segment manufactures and sells conveying systems and conveying equipment. The Environmental Systems Business segment is involved in water supply and sewerage facilities and waste treatment facilities. The Real Estate Business segment rents and manages owned real estate. The company also engages in insurance agency, leasing, and temporary staffing businesses.