Chiyoda Corporation - Offers international engineering, design and construction services. Corporate information and news, and technical articles. Content available in English and Japanese.
Chodai Co., Ltd. - Civil engineering company specializing in the planning, design, and construction supervision of long span bridges, infrastructure, and computer systems.
Hazama Corporation - Active in construction, including large-scale public works projects. Also involved in architecture work and civil engineering.
Hitachi Construction Machinery - Provides a variety of equipment and attachments for construction, including digging, loading, carrying, breaking, grabbing, cutting, crushing, and screening.
Ilya Corporation - Design of commercial and corporate office interiors.
Jgc - Active in construction of nuclear and chemical plants.
Kajima Corporation - Civil engineering projects, such as nuclear power plants.
Kandenko - Construction contractor providing electric facility installations.
Kaneso Co.,Ltd. - Manufactures and sells metal products for architecture, buildings, and conduits. With introduction of products, statement of accounts, employment, and download of CAD data.
Kidoh Construction - Osaba based construction company of pre-stressed concrete tanks and bridges.
Koatsu Kogyo - production and sale of pre-stressed concrete products.
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.
Sekisui House Ltd. - Osaka firm focusing on design and construction of buildings and landscape, civil engineering, real estate, interior decoration, trucking and warehousing.
Seltec Inc. - Offers concrete engineering, landscaping specialties, urban materials design and applications, soil stabilization, and house foundation reinforcement.
Shiraishi - Architectural construction of bridges and roadways.
SOGO Corporation - A specialist trading company in Japan for the exporting used construction machinery. With current stock list.
Suruga - General contractor for commercial buildings.
Taikisha - Designs and installs cleanroom systems, mechanical and electrical systems for buildings, paint finishing systems, and the manufacture and sale of related materials and equipment.
Taisei Corporation - Construction of office buildings and electric power facilities.
Takenaka Corporation - Active in architecture, engineering, construction, interior design, urban development, and recycling.
Toyo Engineering - Includes research, consulting and construction of chemical facilities, nuclear power, natural gas, oil refining, and biotechnology. Based in Chiba.
Zenitaka Corporation - Urban and marine development, real estate, and civil engineering. Based in Osaka with international offices.
