Komatsu, Ltd. - Makes loaders, tracked excavators, shovels, dozers, carriers, motor graders, dump trucks, and tunnelers, plus mining, electronics, industrial, environmental products, and their component parts. Hagiwara House Corporation - Construction company providing renovation services. Ohki - Provides architectural construction. Zenitaka Corporation - Urban and marine development, real estate, and civil engineering. Based in Osaka with international offices. Oriental Shiraishi Corporation - Construction of pre-stressed concrete buildings. Kandenko - Construction contractor providing electric facility installations. Chodai Co., Ltd. - Civil engineering company specializing in the planning, design, and construction supervision of long span bridges, infrastructure, and computer systems. Fudo Construction - Civil engineering for offices and government buildings. Chiyoda Corporation - Offers international engineering, design and construction services. Corporate information and news, and technical articles. Content available in English and Japanese. Hitachi Plant Technologies - Construction of power plants, water treatment facilities, and clean rooms. Hitachi Construction Machinery - Provides a variety of equipment and attachments for construction, including digging, loading, carrying, breaking, grabbing, cutting, crushing, and screening. Taisei Corporation - Construction of office buildings and electric power facilities. Shimizu Corporation - Construction and real estate development. Fujita Corporation - Construction company involved in building planning, design, maintenance, urban renewal, and environmental technology. Kajima Corporation - Civil engineering projects, such as nuclear power plants. Daito Trust Construction - Planning and construction of buildings, and buildings management. Suruga - General contractor for commercial buildings. Penta-Ocean Construction - Development of railroads and sewer systems. Sekisui House Ltd. - Osaka firm focusing on design and construction of buildings and landscape, civil engineering, real estate, interior decoration, trucking and warehousing. Nittoc Construction - Construction company offering civil engineering works, roads and sewerage. Kidoh Construction - Osaba based construction company of pre-stressed concrete tanks and bridges. MH Development - Specializes in heavy-steel modular and mobile buildings. Manufactures and ships overseas. Berthier Associates - Designs workplaces, lounges, showrooms, and labs. Takenaka Corporation - Active in architecture, engineering, construction, interior design, urban development, and recycling. Seltec Inc. - Offers concrete engineering, landscaping specialties, urban materials design and applications, soil stabilization, and house foundation reinforcement. SOGO Corporation - A specialist trading company in Japan for the exporting used construction machinery. With current stock list. Mesco - Construction of facilities and industrial equipment. Jgc - Active in construction of nuclear and chemical plants.