Joban Kaihatsu Co., Ltd. engages in the civil engineering business. It operates through the following segments: Construction, Civil Green Space, Environment, Real Estate, and Others. The Construction segment provides design and construction services. The Civil Green Space segment is engaged in the operation of civil engineering services, architecture, green space and related businesses. The Environment segment offers industrial wastage treatment facilities, environmental measuring, analysis and testing of various environmental factors, radiation monitoring, asbestos removal, facilities management, and decontamination works. The Real Estate segment sells and leases real estate properties. The Others segment includes security services. The company was founded on October 1, 1960 and is headquartered in Iwaki, Japan.