URS Corporation was an engineering, design, and construction firm and a U.S. federal government contractor. Headquartered in San Francisco, California, URS was a full-service, global organization with offices located in the Americas, Europe, Africa, and Asia-Pacific.
The Mott MacDonald Group is a management, engineering and development consultancy headquartered in the United Kingdom. It employs +18,000 staff in 150 countries. Mott MacDonald is one of the largest employee-owned companies in the world.
Amec Foster Wheeler plc was a British multinational consultancy, engineering and project management company headquartered in London, United Kingdom. In October 2017, it was acquired by Wood Group.
Foster Wheeler AG was a Swiss global engineering conglomerate with its principal executive offices in Reading, UK and its registered office in Baar, Canton of Zug, Switzerland. Foster Wheeler was added to the NASDAQ-100 on 12 July 2007. On 13 November 2014 Foster Wheeler merged with Amec plc to form Amec Foster Wheeler. The resultant company was acquired by and merged into Wood Group in October 2017.
Jacobs Solutions Inc. is an American international technical professional services firm. The company provides engineering, technical, professional and construction services, as well as scientific and specialty consulting for a broad range of clients globally, including companies, organizations, and government agencies. Jacobs has consistently ranked No. 1 on both Engineering News-Record (ENR)'s 2018, 2019, 2020 and 2021 Top 500 Design Firms and Trenchless Technology’s 2018, 2019, 2020 and 2021 Top 50 Trenchless Engineering Firms. Its worldwide annual revenue reached over $14 billion in the 2021 fiscal year, and earnings rose to $477 million.
CH2M, earlier CH2M Hill, was an engineering company that provided consulting, design, construction, and operations services for corporations and governments. The company was organized in Corvallis, Oregon, and headquartered at 9191 South Jamaica Street, Englewood, Colorado. In December 2017, the company was acquired by Jacobs Engineering Group.
AECOM is an American multinational infrastructure consulting firm.
Atkins is a Canadian-British multinational engineering, design, planning, architectural design, project management and consulting services company. It is a subsidiary of SNC-Lavalin and is headquartered in London.
WSP Global Inc. is a Canadian consulting firm. It was created in 2014, following Montreal-based Genivar's takeover of British firm WSP Group plc. It is listed on the Toronto Stock Exchange. After the purchase of New York-headquartered professional services firm Parsons Brinckerhoff in October 2014, WSP effectively became one of the largest professional services firms in the world, with approximately 66,200 employees in 500 offices serving in 40 countries.
WorleyParsons Limited, branded as Worley after completing the acquisition of Jacobs' Energy, Chemicals & Resources (ECR) division, is an American Australian engineering company which provides project delivery and consulting services to the resources and energy sectors, and complex process industries.
Rambøll Group A/S, also known as "Ramboll", is a Denmark-headquartered global architecture, engineering, and consulting company. In the past 25 years, the company has expanded from being a business mainly focused on the Nordic region, to having offices in more than 35 countries, with around 18,000 employees working on projects across the world. Much of the company's activity is centred on Europe, North America, but also in emerging markets.
Mouchel Group, originally known as L. G. Mouchel & Partners Ltd, was an infrastructure and business services company headquartered in Woking, United Kingdom. It provided advisory, design, project delivery and managed services associated with infrastructure and business services across the highways and transportation, local government, emergency services, property, health, education and utility markets across the world.
Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development. Specific services for consulting and engineering projects include applied science, information technology, engineering, design, construction management, and operations and maintenance.
Hill International, Inc. is an American construction consulting firm. Founded in 1976, the company's corporate headquarters are in Philadelphia, Pennsylvania, U.S. Hill provides program and project management, construction management, cost engineering and estimating, quality assurance, inspection, scheduling, risk management, and claims resolution and avoidance services to clients with major construction projects worldwide.
Golder Associates Inc., branded as just Golder, is an international company that provides consulting, design, and construction services in earth, environment, and related areas of energy. The company has 7,000 employees in offices in Africa, Asia, Australasia, Europe, North America and South America. In April 2021, the company was acquired by WSP Global.
Ebasco Services was a United States-based designer and constructor of energy infrastructure, most notably nuclear power plants.
Cherokee Nation Businesses, LLC (CNB) is an American conglomerate holding company headquartered in Catoosa, Oklahoma that oversees and manages several subsidiary companies. CNB is a wholly owned subsidiary of the Cherokee Nation, the largest Native American tribe by population in the United States. CNB operates in the following industries: aerospace and defense, hospitality and entertainment, environmental and construction services, information technology, healthcare, and security and safety.
Birdsall Services Group was an engineering, environmental and energy consulting firm based in Eatontown, New Jersey. Established in 1919, Birdsall provided services to private and public clients throughout the tri-state area, including government agencies, healthcare facilities, developers, industrial and construction managers, architects and attorneys.
Environ was a privately held, international environmental, safety and health sciences consulting firm headquartered in Arlington, Virginia. ENVIRON had operations across more than 90 offices in 21 countries, with more than 1,500 consultants when it was acquired in December 2014 by Danish-based Ramboll.
Arcadis NV is a global design, engineering and management consulting company based in the Zuidas, Amsterdam, Netherlands. It currently operates in excess of 350 offices across 40 countries. The company is a member of the Next 150 index.
