Siemens is Germany based Multi-National Company  and it manufactures Technology Products. Engineering Products. Siemens has employee Count of 303,000 as on 2021. Siemens builds Software Solutions in the areas:

• Building Technologies
• Drive Technology
• Energy
• Healthcare
• Industrial Automation
• Mobility
• Financing
• Consumer Products
• Services
• Software

VINCI is Construction and Infrastructure facilities constructing company with headquarters in France. As on 2021, Vinci has 217,731 employees and 50.2 Billion EUR annual revenues for year ending Dec-2021.

EPIROC AB(PUBL) is a manufacturing company of mining and infrastructure equipment. The company develops and manufactures drill rigs, loaders and forklifts, rock drilling tools, bucket crushers, grippers, steel scissors, pulverizes breakers, underground ventilation systems, bolters and compactors. The headquarters is in Sweden. 

Epiroc had revenues of SEK 36 billion in 2020, and has 13,840 employees supporting and collaborating with customers in more than 150 countries.

Building Materials and Solutions Developing and Manufacturing Company with headquarters in Ireland. It is the global leader in high performance insulation and building envelope solutions. Improving building performance, construction methods and ultimately people's lives. They have 13,000 plus employees as on 2019 and they operate across 70 plus countries.

AENA S.M.E is Airports operating company with headquarters in Madrid, Spain.

The company manages 46 airports and 2 heliports in Spain and has direct and indirect shares in another 23 airports: one in Europe (London Luton airport, of which it owns 51% of the share capital) and 22 in the Americas (6 in Brazil, 12 in Mexico, 2 in Colombia and 2 in Jamaica).

In March 2019, Aena International acquired 100% of six airports in the north east of Brazil.

The company annual revenue is 4,916.3 million USD and has 8,878 employees as on 2019. 

Ferrovial is transportation infrastructure company having business in building infrastructure of highways, airports, railway tracks and construction. Headquarters is in Madrid, Spain.

As on 2020, Ferrovial company has more than 89,968 employees and a global presence in 6 main markets.

SNAM is a energy infrastructure company. And also specializes in the construction  and integrated management of natural gas infrastructure. The company is also one of the main continental operators in ragas fiction for a total pro quota capacity of approximately 8.5 billion cubic meter per year. The headquarters is in Italy.

Atlantia is a motorway and airport infrastructure sector operating in 25 countries. The Group manages 14,000 km of toll motorway, Fiumicino and Ciampino airports in Italy and the three airports of Nice, Cannes-Mandelieu and Saint Tropez in France with 64 millions of passengers a year. Headquarters is in Italy.

Atlantia has turnover of €12 billion  and EBITDA of over €7 billion for the Year 2019.

As on June 2020, Atlantia has 30,745 employees. Among them  29,703 are permanent employees and 1,042 are temporary employees.

BOUYGUES SA  is an industrial group. The company is mainly about real estate development, media, telecommunications, construction, energy and services. The company offers electricity, produces  and distributes water, office projects, commercial, oil and gas contracting  services, and develops residential. The headquarters is in France.

Airport operating company with headquarters in Paris, France.