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 and Construction Consulting, and Other Business. The Construction segment provides civil engineering and building foundation construction, general soil improvement works, and construction machinery leasing. The Civil Engineering and Construction Consulting segment offers civil engineering and construction business mediation and consulting services. The Other Business segment handles real estate leasing. The company was founded on July 8, 1970 and is headquartered in Tokyo, Japan.