# Top 30 automotive manufacturers and suppliers in the Yvelines department

Tamtam tracks 49 automotive manufacturers and suppliers headquartered in the Yvelines department. This list ranks the 30 largest by number of employees on LinkedIn, led by Groupe PSA, Peugeot and Novares Group. Their median headcount is 110. Half of them were founded in 1975 or later. The most common headquarters are Poissy (5), Versailles (5) and Montigny-le-Bretonneux (3).

The companies in Yvelines are primarily large and mid-sized firms in the automotive sector, focusing on manufacturing, associated services, and defense. Noteworthy companies include Groupe PSA, a leading automaker now known as Stellantis; Peugeot, known for its distinctive vehicle designs; Novares Group, which specializes in plastic components for greener cars; and Arquus, a major supplier of ground military vehicles to the French army.

Many of these entities are headquartered in Vélizy-Villacoublay, Poissy, and Versailles, forming a geographical cluster within the department. The presence of companies like Emotors, founded in 2018 for electric machine design, alongside established manufacturers, indicates a mix of traditional automotive players and newer firms focused on future mobility solutions.

🇫🇷 Yvelines · 30 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Groupe PSA](https://www.tamtam.ai/c/groupe-psa) (groupe-psa.com)<br>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 |  |
| 2 | [Peugeot](https://www.tamtam.ai/c/peugeot) (peugeot.com)<br>Offers customers exhilarating, quality driving experiences through racy design and uncompromised quality, adding excitement to every journey. | Motor Vehicle Manufacturing | 🇫🇷 Poissy | 9,490 | 1810 |
| 3 | [Novares Group](https://www.tamtam.ai/c/novares-group) (novaresteam.com)<br>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 |
| 4 | [Leasys](https://www.tamtam.ai/c/leasys) (leasys.com)<br>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 |  |
| 5 | [Arquus](https://www.tamtam.ai/c/arquus) (arquus-defense.com)<br>Leading supplier of ground military vehicles to the French army, combining expertise from Renault Trucks Defense, ACMAT, and Panhard, with 130 years of automotive history. | Defense and Space Manufacturing | 🇫🇷 Versailles | 1,309 |  |
| 6 | [Emotors](https://www.tamtam.ai/c/emotors) (emotors.com)<br>Design and manufacturing of electric machines for on-road vehicles, providing solutions for propulsion and power generation in the automotive industry. | Motor Vehicle Manufacturing | 🇫🇷 Carrières-sous-Poissy | 811 | 2018 |
| 7 | [Sodicam2 - Renault Group](https://www.tamtam.ai/c/sodicam2-renault-group) (sodicam2.fr)<br>Recruits, trains, and manages a sales force for automotive parts and accessories, ensuring performance and adaptation to market changes through employee development. | Motor Vehicle Manufacturing | 🇫🇷 Guyancourt | 440 | 1975 |
| 8 | [Nissan West Europe – France](https://www.tamtam.ai/c/nissan-west-europe-france) (nissan.fr)<br>Design and manufacture innovative vehicles including crossovers and electric cars, focusing on accessible technology and customer-centric solutions. | Motor Vehicle Manufacturing | 🇫🇷 Voisins-le-Bretonneux | 252 | 1972 |
| 9 | [Alphabet France](https://www.tamtam.ai/c/alphabet-france) (alphabet.com)<br>Provides comprehensive mobility solutions for businesses, managing vehicles for 700,000 drivers globally. Focuses on financial, regulatory, and employee well-being aspects. | Financial Services | 🇫🇷 Montigny-le-Bretonneux | 238 |  |
| 10 | [SAVAC](https://www.tamtam.ai/c/savac) (savac.fr)<br>Family-owned group, passenger road transport by coaches and buses, prioritizing reactivity and service quality for customer mobility needs. | Truck Transportation | 🇫🇷 Chevreuse | 198 | 1937 |
| 11 | [Daimler Truck France](https://www.tamtam.ai/c/daimler-truck-france) (mercedes-benz-trucks.com)<br>Leading truck distributor in France, offers a full range of trucks for various professional needs, supported by a strong network and dedicated experts. | Motor Vehicle Manufacturing | 🇫🇷 Montigny-le-Bretonneux | 197 | 1886 |
| 12 | [Stellantis Motorsport](https://www.tamtam.ai/c/stellantis-motorsport)<br>Center of excellence for motorsport activities, managing hybrid and electric racing programs, customer racing, and high-performance motorsport vehicles. | Motor Vehicle Manufacturing | 🇫🇷 Versailles | 148 |  |
| 13 | [VEDECOM](https://www.tamtam.ai/c/vedecom) (vedecom.fr)<br>The Institute for Energy Transition (ITE) VEDECOM is a public-private foundation dedicated to innovative and sustainable mobility solutions, supporting French mobility industries | Research Services | 🇫🇷 Versailles | 120 | 2014 |
| 14 | [STS](https://www.tamtam.ai/c/sts-trappes) (enorise.com)<br>A partner offering flexibility in development, leveraging cutting-edge equipment and expertise to drive team excellence in transient testing and powertrain development | Motor Vehicle Manufacturing | 🇫🇷 Trappes | 111 | 1989 |
| 15 | [Mazda France](https://www.tamtam.ai/c/mazda-france) (mazda.fr)<br>Designing and engineering innovative vehicles by challenging industry conventions and embracing a unique vision shared by all employees. | Motor Vehicle Manufacturing | 🇫🇷 Saint-Germain-en-Laye | 110 | 1920 |
| 16 | [Metalplast](https://www.tamtam.ai/c/metalplast) (metalplast.fr)<br>Designs, develops, and sells accessories and parts exclusively for automotive manufacturers, specializing in innovative custom solutions and integrated products. | Motor Vehicle Manufacturing | 🇫🇷 Versailles | 88 | 1979 |
| 17 | [Traxall France](https://www.tamtam.ai/c/traxall-france) (traxall.fr)<br>Manages automobile fleets, offering software solutions, operational, budgetary, administrative management, driver relations, and expert consulting on various related topics. | Motor Vehicle Manufacturing | 🇫🇷 Montigny-le-Bretonneux | 60 | 1999 |
| 18 | [SOVEREP GROUP](https://www.tamtam.ai/c/soverep-group) (soverep.fr)<br>Helping car manufacturers source, develop, and produce high-quality, cost-optimized parts for mid-size production, specializing in electric vehicle components. | Wholesale | 🇫🇷 Versailles | 58 | 1962 |
| 19 | [EUROREPAR by Stellantis](https://www.tamtam.ai/c/eurorepar-by-stellantis) (eurorepar.com)<br>Provides a wide range of automotive products for vehicles older than three years, available in over 100 countries worldwide. | Wholesale Motor Vehicles and Parts | 🇫🇷 Poissy | 47 |  |
| 20 | [bilstein group France](https://www.tamtam.ai/c/bilstein-group-france) (bilsteingroup.com)<br>Specializing in automotive aftermarket parts, the company offers a wide range of products for all vehicle brands, with a focus on customer service and innovation | Motor Vehicle Parts Manufacturing | 🇫🇷 Aubergenville | 40 | 1844 |
| 21 | [Magneti Marelli Parts & Services en France](https://www.tamtam.ai/c/magneti-marelli-parts-and-services-en-france) (magnetimarelli-parts-and-services.fr)<br>Distributes original components for major car manufacturers and equivalent quality spare parts, specializing in electronics, lighting, shock absorbers, and technical expertise. | Motor Vehicle Parts Manufacturing | 🇫🇷 Trappes | 36 |  |
| 22 | [LDM - La Dimension Mécanique](https://www.tamtam.ai/c/ldm-la-dimension-mecanique) (ldmeca.com)<br>Specialized in high precision mechanical parts manufacturing and seals, serving industries like aerospace, defense, automotive, and medical with quality works globally | Aviation and Aerospace Component Manufacturing | 🇫🇷 Aubergenville | 34 | 1962 |
| 23 | [Fiat France](https://www.tamtam.ai/c/fiat-france) (fiat.fr)<br>Official source for Fiat brand news and updates in France, providing information about vehicles and company activities. | Motor Vehicle Manufacturing | 🇫🇷 Poissy | 32 |  |
| 24 | [VDO France](https://www.tamtam.ai/c/vdo-france) (continental.com)<br>Provides electronic solutions and original equipment for special vehicles, alongside products and services for tachograph centers and fleet managers, in Rambouillet, France. | Motor Vehicle Parts Manufacturing | 🇫🇷 Rambouillet | 30 | 2007 |
| 25 | [Stellantis CEMR Poissy](https://www.tamtam.ai/c/stellantis-cemr-poissy) (linkedin.com)<br>Discover the latest news, events, and activities of a business center specializing in various fields and regions | Motor Vehicle Manufacturing | 🇫🇷 Poissy | 29 |  |
| 26 | [ASCA REMORQUES INDUSTRIE - Les Remorques Made in France 🇨🇵](https://www.tamtam.ai/c/asca-remorques-industrie-les-remorques-made-in-france) (asca.fr)<br>Design and manufacture a wide range of trailers and semi-trailers including container carriers, forestry trailers, gas bottle carriers, and custom chassis. | Motor Vehicle Manufacturing | 🇫🇷 Épône | 27 | 1968 |
| 27 | [LEM Liberty Electric Motion](https://www.tamtam.ai/c/lem-liberty-electric-motion) (liberty-electric-motion.com)<br>Specialist in electric mobility for over 18 years, offering sales, rental, maintenance, and custom design and production of electric vehicles. | Motor Vehicle Manufacturing | 🇫🇷 Galluis | 21 | 2005 |
| 28 | [KEOLIS SEINE ET OISE EST](https://www.tamtam.ai/c/keolis-seine-et-oise-est) (keolis-idf.com)<br>The company operates public transportation networks worldwide, specializing in automated metro and tram systems, as well as healthcare transport and parking services | Ground Passenger Transportation | 🇫🇷 Carrières-sous-Poissy | 21 | 2021 |
| 29 | [IAV S.A.S.U.](https://www.tamtam.ai/c/iav-s-a-s-u) (iav.com)<br>Develops tomorrow's mobility as a leading engineering partner, combining automotive and IT expertise, hardware and software, product and service for global OEMs. | Engineering Services | 🇫🇷 Guyancourt | 16 | 2007 |
| 30 | [Stellantis Design Studio](https://www.tamtam.ai/c/stellantis-design-studio) (stellantisdesignstudio.com)<br>Creative agency leveraging iconic design from Stellantis brands to collaborate globally, creating engaging brand experiences with a focus on sustainable products | Design Services | 🇫🇷 Velizy-Villacoublay | 16 | 2021 |

## 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 13, 2026.

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- [Environmental services companies in the Yvelines department](https://www.tamtam.ai/l/environmental-services-companies-yvelines) (35)

## The same list elsewhere in France

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## The same list elsewhere

- [Automotive manufacturers and suppliers in the world](https://www.tamtam.ai/l/automotive-companies-in-the-world) (5,881)
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Source: https://www.tamtam.ai/l/automotive-companies-yvelines
