Tenox Corp. engages in the provision of construction and civil engineering services and sale of construction materials. It operates through the following segments: Construction, Civil Engineering Consulting and General Business, and Other Business. The Construction segment provides civil engineering and building foundation construction, general soil improvement works, and construction machinery leasing. The Civil Engineering Consulting and General Business segment offers civil engineering and construction business mediation and consultation services. The Other Business segment handles real estate leasing. The company was founded on July 8, 1970 and is headquartered in Tokyo, Japan.