UEKI CORP. engages in the provision of construction and real estate services. It operates through the following segments: Construction, Real Estate, Building Materials Manufacturing and Sales, and Others. The Construction segment offers civil engineering and construction contracting services. The Real Estate segment develops, buys, sells, and leases real estate properties. The Building Materials Manufacturing and Sales segment handles the manufacture and sale of construction materials. The Others segment develops and sells software; operates elder care facilities; manages golf courses; and leases the industrial waste treatment facilities. The company was founded by Kamenosuke Ueki on April 1, 1885 and is headquartered in Kashiwazaki, Japan.