China Railway Siyuan Survey & Design Group Co., Ltd. is a company headquartered in China ultimately controlled by the Government of China. The firm provides engineering survey and design services.

Shanghai Tunnel Engr & Rail Traffic Design & Research Inst (doing business as Tunnel Engr & Rail Traffic Design & Research Institute), a subsidiary of City of Shanghai, is a company headquartered in Shanghai, China, that provides tunnel and rail transit design services. The firm was acquired by Shanghai Shentong Metro Group Co., Ltd. from Shanghai Tunnel Engineering Co., Ltd. on October 08, 2010 for $47.71 million.

Taisei Corporation (大成建設株式会社 Taisei Kensetsu Kabushiki-gaisha) (TYO: 1801) is a Japanese corporation founded in 1873. Its main areas of business are building construction, civil engineering, and real estate development. Taisei's headquarters are located at Shinjuku Center Building in Nishi-Shinjuku, Shinjuku, Tokyo.

Daiho Corp. engages in the provision of civil engineering and construction services. It operates through the following segments: Civil Engineering, Building Construction, and Others. The Civil Engineering segment provides civil works for construction projects such as dams, power plants, sea ports, expressways, and railways. The Building Construction segment includes constructing office buildings, accommodations, retail shops, warehouses, factories, condominiums, and cleaning facilities. The Others segment covers real estate business and lease of construction materials. The company was founded on March 31, 1949 and is headquartered in Tokyo, Japan.

Ohbayashi Corp. is a private company headquartered in Japan that provides general construction services includes engineering, design, contracting, construction and management services.

China Railway Liuyuan Group Co., Ltd. is a company headquartered in Tianjin, China and ultimately controlled by the Government of China. The firm constructs railway lines, highways and buildings.

China Railway First Survey & Design Institute Group Co., Ltd. is a Chinese company ultimately controlled by the Government of China that provides engineering survey, design, supervision and consulting services.

Shanghai Tunnel Engineering Co., Ltd., established on 2014-07-18, Business scope includes construction of municipal public construction projects,house construction construction,Highway Construction Engineering Construction,Railway Construction Engineering Construction,Port and waterway construction engineering construction,Construction of water conservancy and hydropower construction projects,Mechanical and electrical installation construction engineering construction,Foundation and foundation construction engineering professional construction,Architectural decoration decoration construction engineering professional construction,Concrete Prefabricated Elements Construction Engineering Professional Construction,Professional construction of fire protection facilities construction engineering,Blasting and Demolition Construction Engineering Professional Construction,bridge construction engineering professional construction,Tunnel construction engineering professional construction,Highway traffic construction engineering professional construction,Professional construction of urban rail transit construction engineering,Municipal professional construction engineering design,Technology development in the professional field of construction industry,technical consulting,technology transfer,Technical Services,Engaged in the import and export of goods and technology,Production of machinery and electromechanical equipment(Limited to branch operations),Sales,Install,Own Equipment Rental(Excluding financial leases),design,Create various advertisements,Advertise on owned media(Not allowed to engage in value-added telecommunications,Financial services). [Items subject to approval by law,Business activities can only be carried out after approval by relevant departments]

Powerchina Huadong Engineering Corp. Ltd. is a company headquartered in Hangzhou, China and ultimately controlled by the Government of China, that provides industrial engineering services.

Penta-Ocean Construction Co., Ltd. engages in the provision of building, civil engineering, and environmental construction services around coastal areas. It operates through the following business segments: Domestic Civil Engineering, Domestic Architectural Construction, Overseas, Domestic Real Estate Development, and Other. The Domestic Civil Engineering segment offers civil engineering services across Japan. The Domestic Architectural Construction segment deals with local construction. The Overseas segment involves with civil engineering and construction work outside Japan. The Domestic Real Estate Development segment deals with real estate selling and leasing. The Other segment includes shipbuilding businesses, office equipment leasing, insurance agency business, and environment-related consulting business. The company was founded by Jinjiro Mizuno in April 1896 and is headquartered in Tokyo, Japan.

Tekken Corp. engages in the civil engineering and construction works, and real estate businesses. It operates through the following business segments: Civil Engineering, Construction Works, Real Estate Business, Incidental Business, and Others. The Civil Engineering segment handles contracted civil engineering works including the planning, surveying, design, supervision, management and consulting. The Construction Works segment covers contracted construction works from surveys to planning, design, management, and supervision. The Real Estate Business segment deals with real estate buy and sell and real estate leasing. The Incidental Business segment handles the sales of equipment related to civil engineering and construction work. It also offers security services. The Others segment includes the operation of sports facilities. The company was founded on February 1, 1944 and is headquartered in Tokyo, Japan.

Kajima Corp. engages in the construction, real estate development, architectural design, and civil engineering businesses. It operates through the following segments: Civil Engineering, Building Construction, Real Estate Development and Other, Domestic Subsidiaries and Affiliates, and Overseas Subsidiaries and Affiliates. The Civil Engineering segment provides civil engineering works and construction service. The Building Construction segment offers building construction works. The Real Estate Development and Other segment covers real estate development and architectural, structural and engineering businesses. The Domestic Subsidiaries and Affiliates segment sells construction materials. It also deals in special construction and engineering services and manages leasing and rental businesses in Japan operated by domestic subsidiaries and affiliates. The Overseas Subsidiaries and Affiliates segment handles overseas construction and development projects. The company was founded by Iwakichi Kajima in 1840 and is headquartered in Tokyo, Japan.

Shimizu Corporation is an architectural, civil engineering, and general contracting firm that offers planning, design, and build solutions for a broad range of construction and engineering projects worldwide. The company builds residential, commercial, and institutional buildings, while performing civil engineering works for roads and operating real estate businesses. Shimizu Corporation, through its subsidiaries, sells and leases construction materials and machinery. Its service portfolio includes design-build, general construction, project management, construction management, and renovation services. The company also offers investigation, planning, research, evaluation, diagnosis, soil investigation, surveying, and consulting in connection with construction works. Shimizu Corporation was founded in 1803 by Kisuke Shimizu and is based in Tokyo, Japan.

Part of Sandvik Aktiebolag, Voest-Alpine Bergtechnik GmbH is a company headquartered in Zeltweg, Austria, that engages in machine tool manufacturing. It was acquired by Tamrock Oy from Österreichische Beteiligungs AG on July 01, 1996 for $140.85 million.

China Railway Design Group Co., Ltd., established on 1992-07-21, The scope of business includes undertaking surveys of foreign and domestic-funded projects,consult,Design and Supervise Projects;Equipment required for the above projects,Material export;Contracting and strength,scale,country with performance(territory)Foreign engineering projects;External dispatch of the department's survey,consult,Design and supervision labor personnel;In the country(territory)Hold various enterprises abroad;Manage the export business of the company's self-produced products and technologies and the machinery and equipment required by the company,spare parts,Import business of raw and auxiliary materials and technologies(Except for the goods and technologies that the state restricts the company to operate or prohibits the import and export of);Undertake domestic engineering survey,surveying and mapping,consult,design,supervision,EPC,Engineering pile detection and geological disaster prevention engineering construction projects;Consulting services related to the above business;Construction project bidding agency business;Railway Bridge Verification;Soil and Water Conservation Scheme Compilation and Environmental Impact Assessment of Construction Projects;Surveying instruments and drilling rig maintenance;Rental business of self-owned houses;Engineering Design of Public Security Technical Protection System,construction;General cargo;The following limited branch operations:stay(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

China Railway Tunnel Bureau Group Co., Ltd. is a Chinese private company located in Nanning with a presence in China and Israel. The firm provides tunnels and underground construction services.

Mitsui E&S Shipbuilding Co., Ltd. engages in the design, manufacture, construction, and engineering ships and air cushion boats. The company was founded in 1917 and is headquartered in Tokyo, Japan.

Sato Kogyo Co., Ltd. is a private company headquartered in Tokyo, Japan, that operates in several countries. The firm provides construction and construction consulting service. It was founded in 1931. Hideyuki Yamada is the current CEO of the company.

China Railway 14th Bureau Group Co., Ltd. is a company headquartered in Shijiazhuang, China and ultimately controlled by the Government of China, that provides design, construction, equipment installation, construction supervision and technical consultation.