ACS, Actividades de Construcción y Servicios, S.A. is a civil and engineering Spanish company engaged in construction, all services and communications. One of the world's leading construction companies with projects in many countries around the world.

ACS, Actividades de Construcción y Servicios, S.A. was formed in 1997 through the merger of OCP Construcciones, S.A. and Ginés Navarro Construcciones, S.A. The group is represented in Germany, India, Brazil, Chile, Morocco and Australia. Its headquarters are in Madrid and its president is Florentino Perez. Shares of companies listed on Bolsa de Madrid are included in the IBEX 35 stock market index.

Location: Madrid, Spain
Employees: 190,500
Revenue: €39 billion
Founded: 1997
Notable Project: Torre Glòries
Website: http://www.grupoacs.com/

Hochtief Aktiengesellschaft is a German construction company headquartered in Essen, North Rhine-Westphalia, Germany. Hochtief is the largest construction company in Germany and operates worldwide, is one of the largest construction companies in the United States through its subsidiary Turner, and ranks in Australia through 72.683% of the CIMIC Group.

In 2010, more than 70,000 employees were employed in five corporate sectors. One of them, Hochtief Concessions, is a major airport operator. The rest are involved in construction project planning, finance, construction, and operations. The work performed in 2010 amounted to EUR 23.23 billion, of which more than 80% was carried out outside Germany.

Location: Essen, Germany
Employees: 47,000
Revenue: €21.1 billion
Founded: 1874
Notable Project: Bosphorus Bridge

Website: https://www.hochtief.de/

Founded by Alexandre Giros and Louis Loucheur as Société Générale d’Entreprises S.A. (SGE) in 1899, Vinci, corporate identity Vinci is a French concession and construction company. Its headquarters are located in Rueil-Malmaison, in the western suburbs of Paris.

Vinci is listed on the Euronext Paris stock exchange and is a member of the Euro Stoxx 50 index. In May 2019, Vinci acquired a 50.01% stake in Gatwick Airport. On 7 April 2021, Vinci won a 30-year concession for Brazil's next airport. Vinci has 3,346 employees at this location. There are 5,682 companies in the Vinci corporate family.

Location: Rueil Malmaison, France
Employees: 222,000
Revenue: €48.05 billion
Founded: 1899
Notable Project: Louvre Entrance

Website: http://www.vinci.com/

Bouygues S.A. is an industrial group headquartered in the 8th arrondissement of Paris, France. Bouygues is listed on the Euronext Paris stock exchange and was one of the first companies in the CAC 40 stock market index. The company was founded in 1952 by Francis Bouygues and has been led by his son Martin Bouygues since 1989.

Bouygues S.A. specializes in construction (Colas Group and Bouygues Construction), development (Bouygues Immobilier), media (TF1 Group), telecommunications (Bouygues Telecom) and transport (Alstom). In May 2018, the company purchased the Australian construction company A. W. Edwards.

Location: Paris, France
Employees: 130,500
Revenue: €35.55 billion
Founded: 1952
Notable Project: Musée d’Orsay

Website: https://www.bouygues.com/en/

STRABAG SE is an Austrian construction company headquartered in Spittal an der Drau, Austria. It is the largest construction company in Austria and one of the largest construction companies in Europe. Current stakeholders are Russian oligarch Oleg Deripaska's Cyprus based Rasperia Trading, Hans Peter Haselsteiner's holding company, the Raiffeisen-Holding Niederösterreich-Wien group and Raiffeisen Group and UNIQA Group.

STRABAG SE operates in Austria and Germany, all countries in Central, Eastern and Southeast Europe, Western Europe, the Arabian Peninsula, Canada, Chile, China and some markets in India. In these markets, STRABAG has subsidiaries or operates on a project basis.

Location: Vienna, Austria
Employees: 74,000
Revenue: €15.7 billion
Founded: 1835
Notable Project: Alte Weser Lighthouse

Website: http://www.strabag.com/

Established in Malmö, Sweden, in 1887 by Rudolf Fredrik Berg and started by manufacturing concrete products, Skanska AB is now a multinational construction and development company based in Sweden. Skanska is the fifth largest construction company in the world, according to the Construction Global magazine.

Skanska has played an important role in building Sweden's infrastructure including its roads, power plants, offices, and housing. Notable Skanska projects include renovation of the United Nations Headquarters, the World Trade Center Transportation Hub project, Moynihan Train Hall, 30 St Mary Axe, MetLife Stadium, Mater Dei Hospital, among others.

Location: Stockholm, Sweden.

Employees: 31,000
Revenue: KR160.3 billion
Founded: 1887
Notable Project: MetLife Stadium

Website:https://www.skanska.com/

TechnipFMC is a French and UK-based global oil and gas company providing full project lifecycle services for the energy industry. Ranked #23 out of the top 225 international design companies in the world in 2017 according to Engineering NewsRecord. Announced in 2016 and completed in 2017, the company was created through the merger of FMC Technologies in the US and Technip in France.

TechnipFMC operates in three segments: subsea, offshore/onshore, and onshore projects. The company was legally established in the UK and has major operations in Houston and Paris, where the former company was headquartered. The company employs approximately 23,000 people in 126 countries and has operations in 48 countries. TechnipFMC is listed on NYSE and Euronext Paris and is a component of the CAC Next 20 and Dow Jones Sustainability Index. The French government owns 4% of the company.

Location: London, United Kingdom
Employees: 37,000
Revenue: $13 billion
Founded: 2017
Notable Projects: FPSO Dalia

Website: https://www.technipfmc.com/

Ferrovial SA (formerly Grupo Ferrovial) is a Spanish multinational design, construction, finance, operations (DBFO) and maintenance transportation infrastructure and city services company. Listed on the IBEX 35 stock market, capitalized weighted Indices. Headquarters In Madrid, Ferrovial operates 4 divisions in more than 5 countries, the Highways division finances and operates toll roads including 407 ETR, North Tarrant Express, LBJ Express, Euroscut Azores and Ausol I. The Airports division designed and manufactured airports in Heathrow, Glasgow, Aberdeen and Southampton.

Ferrovial SA construction business designs and constructs public and private facilities such as roads, highways, airports and buildings. The company's services division oversees the maintenance and preservation of infrastructure, facilities and buildings, waste collection and disposal, and other types of public services.

Location: Madrid, Spain
Employees: 90,000
Revenue: €12.208 billion
Founded: 1952
Notable Projects: T2 Heathrow Airport

Website: https://www.ferrovial.com/en

Eiffage is one of France's leading construction and civil engineering groups with a total turnover of nearly 32 billion francs. Envisioned as a coalition of companies with more than 500 subsidiaries in France alone, Eiffage is the result of the 1993 acquisition of Fougerolle by Société Auxiliaires des Entreprises (SAE). Eiffage members specialize in private and public construction and civil engineering projects, including building construction, highway and road construction, electrical and civil engineering (bridges, stadiums and other public structures). Other major names for the Eiffage group are Quillery, Eiffel, Gerland, SCRBeugnet, Forclum, and Norelec.

Each Eiffage member company has its own unique equipment, resources, networks, people and corporate culture, operating independently of each other while providing opportunities for synergies and collaboration between member companies. Member companies act as holding structures for their own subsidiaries, reflecting a similar federation structure.

Location: Vélizy-Villacoublay, France
Employees: 72,500
Revenue: €22.1 billion
Founded: 1970
Notable Projects: Grand Hôtel-Dieu

Website: www.Eiffage.com

Tecnicas Reunidas, S.A. is a general contractor in Spain providing the design, supply and construction of industrial and energy companies, especially in the oil and gas sector. Since April 2008, the company has been part of the Spanish large-cap IBEX 35.

TRSA is the principal holding company of a group of companies, capable of providing a wide range of integrated services for turnkey projects around the world. Since 1959, the TRSA Group has designed and built more than 1000 industrial plants worldwide. International projects account for 70% of the company's annual sales, primarily in Latin America and China. The company is also becoming more active in the Middle East and won a $1.2 billion contract in January 2009 to develop two onshore oil fields in the UAE for ADNOC's subsidiary.

Location: Madrid, Spain
Employees: 9,461
Revenue: €4.699 billion
Founded: 1959
Notable Projects: Sitra Refinery

Website: www.tecnicasreunidas.es