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Multinational companies headquartered in the Yvelines department

Tamtam tracks 226 multinational companies headquartered in the Yvelines department. This list ranks the 30 largest by number of employees on LinkedIn, led by Dassault Systèmes, Groupe PSA and Eiffage Énergie Systèmes. Their median headcount is 1,726. The most common headquarters are Velizy-Villacoublay (12), Versailles (8) and Poissy (3).

🇫🇷 Yvelines30 companiesUpdated Nov 11, 2026

These multinational companies in the Yvelines department are primarily large groups, with a strong presence in motor vehicle manufacturing, construction, and environmental services. Notable companies include Dassault Systèmes, pioneering virtual worlds; Groupe PSA, a leading automaker; Eiffage Énergie Systèmes, designing energy systems; and Peugeot, offering quality driving experiences. The data shows a significant concentration of headquarters in Velizy-Villacoublay, indicating a central hub for these larger enterprises within the department.

The companies listed exhibit a mix of sectors, from the long-established automotive industry with Peugeot, founded in 1810, to more recent entities in higher education and retail. The presence of multiple Eiffage entities (Eiffage Énergie Systèmes, Eiffage, Eiffage Construction, Eiffage Génie Civil) also highlights the substantial footprint of this construction group in the region.

#CompanyIndustryHeadquarters EmployeesFounded
1
Dassault Systèmes3ds.com

Pioneering virtual worlds since 1981, this company offers a platform enabling customers across industries to collaborate, imagine, and create sustainable innovations for real-life impact.

Software Development 🇫🇷 Velizy-Villacoublay 27,414 n/a
2
Groupe PSAgroupe-psa.com

Leading automaker and mobility provider; now known as Stellantis. This entity is one of the world's foremost in vehicle manufacturing and mobility solutions.

Motor Vehicle Manufacturing 🇫🇷 Velizy-Villacoublay 16,153 n/a
3
Eiffage Énergie Systèmeseiffageenergiesystemes.com

Designs, builds, operates, and maintains energy systems, offering innovative solutions in electrical, industrial, climatic, and energy engineering.

Environmental Services 🇫🇷 Velizy-Villacoublay 15,518 n/a
4
Peugeotpeugeot.com

Offers customers exhilarating, quality driving experiences through racy design and uncompromised quality, adding excitement to every journey.

Motor Vehicle Manufacturing 🇫🇷 Poissy 9,490 1810
5
SAVENCIAsavencia.com

Family-owned food group valorizing milk and cocoa sectors for high-quality products, strong brands, meeting consumer expectations and supporting culinary professionals worldwide.

Food and Beverage Manufacturing 🇫🇷 Viroflay 9,109 n/a
6
Eiffageeiffage.com

Join a close-knit company valuing teamwork, innovation, and individuality to build a human-sized future, welcoming diverse talents to thrive

Construction 🇫🇷 Velizy-Villacoublay 7,684 n/a
7
SOCOTECsocotec.fr

Provides services throughout the entire life cycle of built assets for compliance, extended lifespan, improved performance, and people’s safety in construction, infrastructure, and industry.

Environmental Services 🇫🇷 Guyancourt 7,326 1953
8
ArianeGroupariane.group

Designing, developing, manufacturing, and operating space launch systems and strategic missiles for space and defense sectors.

Aviation and Aerospace Component Manufacturing 🇫🇷 Les Mureaux 6,651 n/a
9
Eiffage Constructioneiffageconstruction.com

A leading European construction company specializing in development, real estate, construction, maintenance, and service works with a strong corporate culture

Construction 🇫🇷 Velizy-Villacoublay 5,174 n/a
10
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

Civil Engineering 🇫🇷 Velizy-Villacoublay 3,786 n/a
11
KNDS Franceknds.com

Designing, developing, producing armored vehicles, artillery, guns, turrets, ammunition, and robotic systems, with customer support, for armed forces land combat challenges.

Defense and Space Manufacturing 🇫🇷 Versailles 2,894 n/a
12
Novares Groupnovaresteam.com

Designs, manufactures complex plastic components and systems for the automotive industry, focusing on greener, lighter, and connected cars with intuitive interfaces.

Motor Vehicle Manufacturing 🇫🇷 Velizy-Villacoublay 2,833 1955
13
HEC Parishec.edu

Offers diverse management education programs including Masters, MBA, PhD, and Executive Education for future leaders and current executives, with focus on education and research.

Higher Education 🇫🇷 Jouy-en-Josas 2,765 n/a
14
UVSQ Université de Versailles Saint-Quentin-en-Yvelinesuvsq.fr

Provides diverse higher education, conducts innovative research across various fields, and fosters technological advancements with strong industry and international partnerships.

Research Services 🇫🇷 Versailles 2,170 1991
15
Bureau Valléebureau-vallee.fr

French retailer selling discounted stationery, office, tech, and furniture products to individuals and professionals across 240 stores and online.

Retail 🇫🇷 Les Clayes-sous-Bois 1,726 1990

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16
Safran Landing Systemssafran-group.com

Specializes in landing gear systems, providing innovative solutions for aircraft safety, performance, and maintenance in both commercial and military sectors.

Aviation and Aerospace Component Manufacturing 🇫🇷 Velizy-Villacoublay 1,717 n/a
17
Groupe Léon Grosseleongrosse.fr

Specializes in large-scale construction and renovation projects including stadiums, transportation hubs, cultural sites, and sports facilities across France.

Construction 🇫🇷 Versailles 1,517 1881
18
LGMlgm.group

The company offers technological, digital, and software engineering consulting, innovative solution design, and complex electronics production, supporting critical systems and industrial performance.

Engineering Services 🇫🇷 Velizy-Villacoublay 1,469 1991
19
Leasysleasys.com

Offers long-term rental solutions and company fleet management systems across Europe for efficient, rational, safe, and sustainable mobility for businesses and individuals.

Financial Services 🇫🇷 Poissy 1,440 n/a
20
ERA IMMOBILIER Franceeraimmobilier.com

Established in 1971, this real estate franchise network is a leader in Europe with over 1,150 franchise locations in 39 countries, fostering a Gagnant / Gagnant (Win/Win) spirit

Real Estate 🇫🇷 Versailles 1,258 1971
21
Konica Minolta Business Solutions Francekonicaminolta.fr

Providing digital transformation solutions including imaging, cloud storage, IT services, and healthcare solutions Specializing in printing, AI technology, and eco-friendly initiatives

IT Services and IT Consulting 🇫🇷 Carrières-sur-Seine 1,148 1873
22
Nature et Découvertesnatureetdecouvertes.com

Offers products for well-being, outdoor, home, games, and books. Provides concrete solutions for sustainable lifestyles, committed to living. A meaningful gift brand.

Retail 🇫🇷 Versailles 1,032 1990
23
SOURIAU-SUNBANK Connection Technologies by Eatonsouriau.com

An intelligent power management company focused on improving quality of life, protecting the environment, and helping customers manage power efficiently

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Versailles 965 n/a
24
Eiffage Raileiffagerail.com

Specializes in rail infrastructure construction, maintenance, and modernization, providing comprehensive solutions for railway networks and urban transit systems.

Rail Transportation 🇫🇷 Velizy-Villacoublay 938 n/a
25
Jungheinrich France SASjungheinrich.fr

International leader in handling equipment, storage systems, and goods flow management. Offers forklifts, racking, services, and consulting for warehouse logistics needs.

Machinery Manufacturing 🇫🇷 Velizy-Villacoublay 909 n/a
26
CULLIGAN FRANCEculligan.fr

Specialist in water treatment providing softeners, purifiers, and water fountains for homes, businesses, and communities ensuring quality water.

Consumer Services 🇫🇷 Versailles 862 n/a
27
Service d’infrastructure de la Défensedefense.gouv.fr

Manages, builds, and maintains the French Ministry of Armed Forces' real estate, ensuring infrastructure support and energy control for military operations domestically and abroad.

Construction 🇫🇷 Versailles 850 2005
28
Stellantis &You, Sales and Servicesstellantisandyou.com

Providing sales and customer services support, focusing on enhancing client experience and facilitating vehicle-related transactions and assistance.

Retail Motor Vehicles 🇫🇷 Poissy 838 2021
29
Clemessy Servicesclemessy.com

A leading French provider of industrial services, offering maintenance, engineering, and construction solutions for various industries worldwide

Industrial Machinery Manufacturing 🇫🇷 Velizy-Villacoublay 778 n/a
30
IVALIS Groupivalisgroup.com

Offers outsourced stocktaking, supply-chain audits, RFID solutions, product identification, geolocation services, and electronic shelf label installations for retail and supply-chain industries internationally.

Retail 🇫🇷 Montigny-le-Bretonneux 775 n/a

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How this list is built

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 11, 2026.

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