JDC Corp. engages in the civil engineering, architecture and real estate businesses. It operates through the following business segments: Civil Engineering, Buildings, Investment and Development, and Related Companies. The Civil Engineering segment covers social infrastructure improvement such as dam, river, bridge, tunnel, road, water supply and sewerage, construction work and earthquake related reconstruction work. It also includes construction management of related construction work up to solar power plant construction work. The Buildings segment comprises of construction of large-scale facilities such as government buildings, public facilities, stadiums, buildings and condominiums. It also handles management of processes required for the processors for construction, form control and quality control. The Investment and Development segment pertains to real estate development such as real estate sales, leasing,and urban and regional development. It also operates leasing business of renewable energy and equipment for construction. The Related Companies segment covers related companies that manufacture, sell, and lease civil engineering works and construction machinery, and conducts construction work and insurance agency business. The company was founded on April 10, 1951 and is headquartered in Tokyo, Japan.