• Companies

List of Engineering Companies

This list compiles the top engineering companies in the world, listing them by prominence alongside corporate logos. This list of major engineering companies includes the largest and most profitable engineering businesses, corporations, agencies, vendors, and firms, including international engineering conglomerates.

If you are wondering what the biggest engineering companies are, you've come to the right place. This list includes the most famous engineering companies in the industry. If you're looking for companies that hire engineers, you'll find a whole list of engineering firms right here. And if you're looking for a reliable engineering business, each company on this list is worth examining.

This list features diverse companies like UnitedHealth Group and Lockheed Martin, while also answering the questions, "What are the biggest engineering companies in the world?" and "What are the most successful engineering companies?"
  • 1
    Surgical and Medical Instruments and Apparatus, Biotechnology
    The 3M Company, formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in St. Paul, Minnesota. 3M headquarters are in the St.  ...more
  • 2

    A. Reyrolle & Company

    A. Reyrolle & Company was a British engineering firm based in Hebburn, Tyne and Wear in the North East of England. For many years the company was one of the largest employers on Tyneside.  ...more
  • 3

    Aalberts Industries

    Manufacturing, Engineering
    Aalberts Industries N.V. is a Dutch public company, founded by Jan Aalberts in 1975.  ...more
  • 4


    Technology, Engineering
    Abengoa, S.A. is a Spanish multinational corporation, which includes companies in the domains of energy, telecommunications, transportation, and the environment. The company was founded in 1941 by  ...more
  • 5
    Construction, Engineering
    Acciona, S.A. is a Spanish conglomerate group dedicated to civil engineering, construction and infrastructure. The company was founded in 1997 through the merger of Entrecanales y Tavora and  ...more
  • 6
    AECOM is a global provider of professional technical and management support services to a broad range of markets, including transportation, facilities, environmental, energy, water and government.  ...more
  • 7

    Aker Solutions

    Construction, Oil and Gas Field Exploration Services
    Aker Solutions ASA, a Norwegian oil services company headquartered in Oslo, provides oilfield products, systems and services for customers in the oil and gas industry worldwide. The company, with  ...more
  • 8

    Alexander Stephen and Sons

    Shipbuilding, Engineering
    Alexander Stephen and Sons Limited, often referred to simply as Alex Stephens or just Stephens, was a Scottish shipbuilding company based in Linthouse, Govan in Glasgow, on the River Clyde.  ...more
  • 9

    Alfa Laval

    Manufacturing, Engineering
    Alfa Laval AB is a Swedish company, founded in 1883 by Gustaf de Laval and Oscar Lamm. The company, which started in the separation of solutions, now deals in the production of specialized products  ...more
  • 10

    Allaire Iron Works

    Shipbuilding, Engineering
    The Allaire Iron Works was a leading 19th-century American marine engineering company based in New York City. Founded in 1816 by engineer and philanthropist James P. Allaire, the Allaire Works was  ...more
  • 11
    Manufacturing, Engineering
    Alstom is a French multinational company which holds interests in the electricity generation and rail transport markets. According to the company website, in 2012–2013 Alstom had annual sales of  ...more
  • 12
    Construction, Engineering
    Amec Foster Wheeler plc is a British multinational consultancy, engineering and project management company headquartered in London, United Kingdom. It is focused on the oil and gas, minerals and  ...more
  • 13

    Ansaldo STS

    Ansaldo STS S.p.A. is an Italian transportation company with a global presence in the field of signaling and integrated transport systems for passenger traffic and freight operations. Ansaldo STS  ...more
  • 14
    AnsaldoBreda S.p.A. is a loss-making rail transport engineering company based in Italy. The company designs and manufactures railway and mass transit vehicles and is part of the Finmeccanica group.  ...more
  • 15
    Arms industry, Aerospace
    BAE Systems plc is a British multinational defence, security and aerospace company headquartered in London in the United Kingdom and with operations worldwide. It is among the world's largest defence  ...more
  • 16
    Civil Engineering, Construction
    Balfour Beatty plc is a multinational infrastructure group with capabilities in construction services, support services and infrastructure investments. A constituent of the FTSE 250 Index, Balfour  ...more
  • 17

    Bayside Engineering, Inc.

    Civil Engineering, Engineering
  • 18

    BCI Engineers & Scientists, Inc.

    BCI Engineers & Scientists, Inc., based in Lakeland, Florida, is an Engineering/Geology consultant company. It currently has branch offices located in the cities of Orlando, Minneola, Jupiter, and  ...more
  • 19
    Project management, Construction
    Bechtel Corporation is the largest construction and civil engineering company in the United States, ranking as the 4th-largest privately owned company in the United States. Its headquarters are in  ...more
  • 20

    Bharat Forge

    Bharat Forge Limited, the Pune based Indian multinational is a technology driven global leader in metal forming, having a transcontinental presence across eight manufacturing locations, serving  ...more
  • 21

    Butterley Company

    Butterley Engineering was an engineering company based in Ripley, Derbyshire formed from the Butterley Company, founded as Benjamin Outram and Company in 1790. It existed until 2009.  ...more
  • 22

    C. A. Parsons and Company

    C. A. Parsons and Company was a British engineering firm which was once one of the largest employers on Tyneside. The company became Reyrolle Parsons in 1968, merged with Clarke Chapman to form  ...more
  • 23

    Charter International

    Charter International plc was a large British engineering business based in London. It was acquired by Colfax Corporation in January 2012.  ...more
  • 24


    Information technology, Electrical engineering
    Chemtech provides engineering and IT consulting services, combining a deep process knowledge with the expertise on highly modern technological solutions always coming up with the best solution for  ...more
  • 25

    China National Materials Group Corporation

    Cement Manufacturing, Engineering
    China National Materials Group Corporation or Sinoma, established in 1983, is a central government-administered enterprise directly under the administration of the State-owned Assets Supervision and  ...more