The companies listed here are primarily large and mid-sized firms specializing in civil engineering within Île-de-France. They cover a broad spectrum of infrastructure projects globally, from design and construction to maintenance and consulting. For instance, VINCI Concessions focuses on mobility infrastructure like airports and highways, while Egis offers sustainable infrastructure consulting. Artelia provides comprehensive engineering solutions across various sectors, and Eiffage Génie Civil builds and maintains ambitious structures. Freyssinet specializes in technical solutions for construction and repair, and setec manages complex construction projects worldwide.
A notable pattern among these companies is their strong presence in the western suburbs of Paris. Headquarters are concentrated in locations such as Rueil-Malmaison, Nanterre, Saint-Quentin-en-Yvelines, and Velizy-Villacoublay, indicating a geographical cluster for civil engineering expertise in the region. Many of these firms also have an international reach, undertaking projects in numerous countries, which highlights their global operational scale.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
VINCI Concessionsvinci-concessions.com
A global leader in mobility infrastructure, designing, financing, building, operating, and maintaining airports, highways, and railway projects in 23 countries |
219,000 | |||
| 2 |
Egisegis-group.com
An international consultancy specializing in sustainable infrastructure, construction engineering, and mobility services, working towards achieving carbon neutrality and social development globally |
15,158 | |||
| 3 |
Arteliaarteliagroup.com
consultancy, engineering, and project management group specializing in mobility, water, energy, building, and industry, offering comprehensive engineering solutions globally. |
8,106 | |||
| 4 |
Eiffage Génie Civileiffagegeniecivil.com
Specializing in civil engineering, this company designs, builds, maintains, and demolishes ambitious structures in France and internationally with a human perspective |
3,786 | |||
| 5 |
Freyssinetfreyssinet.com
specialist civil engineering, offering integrated technical solutions for construction, repair, and maintenance across various structures, including buildings, bridges, and industrial installations |
2,661 | |||
| 6 | 1,700 | ||||
| 7 |
Geoquestgeoquest-group.com
Expertise in reinforced backfill and soil-structure interaction for diverse structures across multiple engineering sectors worldwide. |
864 | |||
| 8 | 514 | ||||
| 9 |
SITES SAS (France)sites.fr
Specialized engineering company providing studies, methods, tools, and solutions for evaluating and monitoring the health, safety, and durability of infrastructures worldwide. |
495 | |||
| 10 |
BOTTE FONDATIONSbotte-fondations.fr
A subsidiary of VINCI Construction France, specializing in foundations work throughout France through various regional offices and commercial representations |
368 | |||
| 11 |
BIR (Groupe BIR)bir-reseaux.fr
Specializing in underground and industrial networks, the company offers services in electricity, gas, water distribution, industrial pipelines, telecommunications, drilling, public lighting, and more |
362 | |||
| 12 |
INFRANEOinfraneo.com
A leading engineering firm in Europe with 14 locations offering multidisciplinary expertise, continuous innovation, and personalized technical support for public and private sector clients |
361 | |||
| 13 |
setec tpitpi.setec.fr
Engineering services for transport infrastructures, complex buildings, industrial facilities, focusing on sustainable, comprehensive design and technical project solutions. |
360 | |||
| 14 |
Egis en Franceegis-group.com
International consulting, construction engineering, and mobility services company. Designs and operates smart infrastructure and buildings addressing climate challenges for balanced and sustainable territorial development. |
349 | |||
| 15 |
Louis Berger Internationallouisbergerinternational.com
Provides multidisciplinary engineering advice for transport, water, environment, and urban development projects globally, offering support from feasibility studies to implementation and risk evaluation. |
272 | |||
| 16 |
Bouygues Construction Expertises Nucléaires
Offers integrated, innovative, high-value solutions globally, covering all technical fields and the complete life cycle of nuclear infrastructure, including engineering, maintenance, and dismantling. |
254 | |||
| 17 |
École des Ingénieurs de la Ville de Pariseivp-paris.fr
Education and research in urban engineering, sustainable city planning, and digital urban systems, training professionals for metropolitan development. |
247 | |||
| 18 |
Colas Génie Civilcolas.fr
Specializing in construction and maintenance of civil engineering infrastructure projects, the company focuses on technical expertise, BIM integration, and sustainable development initiatives |
243 | |||
| 19 |
terrasol (groupe setec)terrasol.setec.fr
A leading company in geotechnical consulting, providing services such as project design, site analysis, and software development for various engineering projects |
230 | |||
| 20 |
Freyssinet Francefreyssinet.fr
Construction and repair of buildings and civil engineering structures across France, focusing on durability and environmental impact reduction. |
210 | |||
| 21 |
GTM Sudfrance.vinci-construction.com
Major player in public works and civil engineering, delivering complex technical projects for transportation, urban, industrial, nuclear, military, airport, and parking infrastructure. |
204 | |||
| 22 |
Groupe TALENSIStabatabai.fr
Providing engineering expertise, diagnostics, and repair solutions for complex structures with focus on quality, cost control, and client satisfaction. |
202 | |||
| 23 |
Page ferméenge.fr
Leading French public works group specializing in infrastructure projects including highways, railways, airports, ports, and complex engineering with financial expertise. |
191 | |||
| 24 |
BTP Ingénieriebtp-ingenierie.fr
A small-sized engineering firm specializing in structural design, diagnostic assessments, expertise, construction modeling, and cost estimation for both new and existing structures |
173 | |||
| 25 |
STPS
Specializing in public works, our company focuses on transporting and distributing electricity and gas to meet the needs of our customers |
171 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
ISL Ingénierieisl.fr
French engineering company specializing in dams, infrastructures, energy, water, sea, and scientific calculations Offers consulting, project management, and expertise worldwide |
162 | |||
| 27 |
Cofiroute
Rincent Ile de France Sud, part of Rincent Laboratories Group, conducts materials testing for construction for various clients such as regions, cities, and architects |
160 | |||
| 28 |
Demcyeiffage-demcy.com
A company specializing in asbestos removal and demolition of buildings and infrastructure, offering selective equipment removal, material recycling, and nationwide presence |
159 | |||
| 29 |
Fédération Nationale des Travaux Publicsfntp.fr
Represents and supports nearly 8,000 public works companies, coordinating professionals, advocating interests, and fostering development in infrastructure and networks. |
155 | |||
| 30 |
CEMENTYS, a SOCOTEC COMPANYcementys.com
An international company specializing in risk management for construction sites and structural issues, offering tailored technologies and expertise worldwide |
148 | |||
| 31 | 148 | ||||
| 32 | 
MANISOL
A civil engineering company based in Gometz La Ville, France, specializing in various construction projects and infrastructure developments |
134 | |||
| 33 |
Æviaeiffage-aevia.com
Founded in mid-2019, the company specializes in preserving and enhancing heritage through a variety of construction services and innovative technologies |
127 | |||
| 34 |
SEMOFIsemofi-groupe.fr
A geosciences consulting firm offering a complete range of services to optimize projects for municipalities, developers, and builders, with a focus on teamwork and personal growth |
122 | |||
| 35 | 122 | ||||
| 36 |
Genie Civil PDFgeniecivilpdf.com
Online platform offering civil engineering courses, tutorials, exercises, and tools for the civil engineering and construction industry |
119 | |||
| 37 | 105 | ||||
| 38 |
SOLETANCHE BACHY INTERNATIONALsoletanche-bachy.com
A specialized ground engineering construction company based in France, focusing on providing high-quality solutions for construction projects worldwide |
92 | |||
| 39 |
Euriskexpertise.stelliant.com
EURISK is an expertise company for insurers in France, focusing on Construction and Liability insurance, with a growing advisory and quality assurance business |
81 | |||
| 40 |
DETERMINANT ®determinant.fr
Specializes in engineering solutions for damage and construction repairs, focusing on technical diagnostics, cost control, and innovative management. |
70 | |||
| 41 |
GTA Energiesgtaenergies.fr
This company provides expertise in engineering, project management, network detection, and asbestos removal Their highly skilled teams offer innovative solutions to meet client needs |
70 | |||
| 42 |
setec diadèsdiades.fr
Specialized engineering firm providing diagnostics, maintenance, repair studies, consulting, training, and research for civil, industrial, maritime, and historic structures. |
68 | |||
| 43 |
GEOSEC FRANCEgeosec.fr
Specializes in foundation soil consolidation using injection techniques combining research, technology, and innovation to ensure high-quality solutions. |
65 | |||
| 44 |
CHAPSOLchapsol.fr
Providing intelligent, sustainable solutions for civil engineering, public works, rail infrastructure, building, and agricultural structures with innovative, tailored approaches. |
64 | |||
| 45 |
International Commission on Large Dams (ICOLD)icold-cigb.org
Leading dam engineering, setting standards, ensuring safety, efficiency, economic viability, environmental sustainability, social equity for global water, hydropower resources. |
60 | |||
| 46 |
Rincent Laboratoiresrincent.fr
Network of independent laboratories performing tests, analyses, and controls on infrastructure, buildings, and civil engineering works with innovative technology. |
60 | |||
| 47 |
MIRE SASmire-sas.com
Specialized topography company within NGE Group, focusing on railway, tunnel, civil engineering, monitoring, and instrumentation projects with experienced and responsive teams |
55 | |||
| 48 |
RPS Engineeringrps-engineering.fr
Specializing in civil engineering for pipework and road networks, as well as infrastructure for electricity and telecommunications |
48 | |||
| 49 |
DARRAS ET JOUANINfayat.com
A civil engineering company based in Essonne, France, specializing in various civil engineering projects and services |
46 | |||
| 50 |
WMI - Water Management International (VINCI Construction Grands Projets)wmi-water.com
Global leader in water supply performance solutions and integrated water loss control Specializing in sustainable NRW reduction, optimization, and performance programs worldwide |
46 | |||
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 15, 2026.
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- Manufacturers in Île-de-France 1,515
- Law Practice companies in Île-de-France 1,366
- Subscription businesses in Île-de-France 1,359
- Education providers in Île-de-France 1,300
- Advertising Services companies in Île-de-France 1,259
- Financial Services companies in Île-de-France 1,196
- Marketing and communications agencies in Île-de-France 1,172
- Hardware manufacturers in Île-de-France 1,142
- Companies with a mobile app in Île-de-France 1,105
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The same list elsewhere in France
- Civil Engineering companies in France 261
- Civil Engineering companies in Auvergne-Rhône-Alpes 60
- Civil Engineering companies in the Rhône department 28