# The 30 largest multinational companies in Nantes

Tamtam tracks 64 multinational companies headquartered in Nantes. This list ranks the 30 largest by number of employees on LinkedIn, led by Nantes Université, Experis France and EURIAL, la branche Lait dAgrial. Their median headcount is 336. Half of them were founded in 1985 or later.

The companies in Nantes are primarily large organizations, including higher education institutions and established firms. Nantes Université, founded in 1460, and Audencia, founded in 1900, are prominent in higher education. Other significant companies include EURIAL, a dairy cooperative, and Bessé, an independent insurance brokerage. The presence of entities like Ministère des Affaires Etrangères and GEOSIT highlights a focus on public administration and specialized technical fields.

There is a notable concentration of companies with headquarters in Nantes, indicating a strong local economic base. The list includes a mix of industries, such as IT services with Experis France and IMATECH, and manufacturing with ACB in mechanical engineering and ARMOR-IIMAK in chemical manufacturing. The companies span various sectors, from traditional industries to advanced technology and services.

🇫🇷 Nantes · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Nantes Université](https://www.tamtam.ai/c/nantes-universite) (univ-nantes.fr)<br>Unites higher education, research, and innovation stakeholders to develop research excellence, especially for future health and industry, offering new training opportunities. | Higher Education | 🇫🇷 Nantes | 4,270 | 1460 |
| 2 | [Experis France](https://www.tamtam.ai/c/experis-france) (experisfrance.fr)<br>Supports DSI with innovative digital transformation projects, providing IT services and talent solutions to enhance organizational performance, addressing specific needs. | IT Services and IT Consulting | 🇫🇷 Nantes | 2,207 |  |
| 3 | [EURIAL, la branche Lait dAgrial](https://www.tamtam.ai/c/eurial-la-branche-lait-dagrial) (eurial.eu)<br>Leading French dairy cooperative, producing goat cheese, specialty butter, mozzarella, and a range of fresh dairy products. | Food and Beverage Manufacturing | 🇫🇷 Nantes | 1,754 | 1990 |
| 4 | [Audencia](https://www.tamtam.ai/c/audencia) (audencia.com)<br>A leading European business school offering management and communication programs from bachelor to doctoral level, committed to responsible education and development | Higher Education | 🇫🇷 Nantes | 1,232 | 1900 |
| 5 | [𝗚𝗘𝗢𝗙𝗜𝗧](https://www.tamtam.ai/c/company-nantes) (geofit.fr)<br>Designing geographical databases, securing land processes for private and development projects, producing national cartography, developing agriculture, and managing natural resources. | Space Research and Technology | 🇫🇷 Nantes | 1,157 | 1968 |
| 6 | [Ministère des Affaires Etrangères](https://www.tamtam.ai/c/ministere-des-affaires-etrangeres) (diplomatie.gouv.fr)<br>A government administration company located in Nantes, France, focused on international affairs and relations | Government Administration | 🇫🇷 Nantes | 865 | 1500 |
| 7 | [Sce Aménagement & Environnement](https://www.tamtam.ai/c/sce-amenagement-and-environnement) (sce.fr)<br>Sustainable development firm offering urban planning, civil engineering, and environmental services globally with 45+ years of experience and 500 professionals | Environmental Services | 🇫🇷 Nantes | 625 | 1982 |
| 8 | [Bessé](https://www.tamtam.ai/c/besse) (besse.fr)<br>An independent insurance brokerage company with over 60 years of experience, specializing in protecting businesses and employees with innovative solutions and quality services | Insurance | 🇫🇷 Nantes | 610 | 1960 |
| 9 | [ACB](https://www.tamtam.ai/c/acb) (acb-ps.com)<br>A company based in France specializing in metal forming for aeronautical structures, engines, and aircraft manufacturing Offers simulation, design, construction, and installation services | Mechanical Or Industrial Engineering | 🇫🇷 Nantes | 607 |  |
| 10 | [Centrale Nantes](https://www.tamtam.ai/c/centrale-nantes) (ec-nantes.fr)<br>Trains versatile engineers with high scientific, technical levels and strong managerial culture, integrating environmental, societal issues into global contexts. | Higher Education | 🇫🇷 Nantes | 600 | 1919 |
| 11 | [IMATECH](https://www.tamtam.ai/c/imatech) (ima.eu)<br>Development and integration of advanced technology solutions, software services, and digital transformation support for various industries and businesses. | Information Services | 🇫🇷 Nantes | 534 | 1999 |
| 12 | [FÉTIS Group](https://www.tamtam.ai/c/fetis-group) (fetis.group)<br>Provides engineering products and services for off-road machinery, specialized vehicles, power generation, marine power, and manufacturing industries with focus on decarbonization. | Engineering Services | 🇫🇷 Nantes | 501 | 1978 |
| 13 | [Akeneo](https://www.tamtam.ai/c/akeneo) (akeneo.com)<br>Empowering business leaders with software, education, and community for product experience management. Offering intelligent Product Cloud for data enrichment, management, and syndication. | Software Development | 🇫🇷 Nantes | 427 | 2013 |
| 14 | [Air France HOP](https://www.tamtam.ai/c/air-france-hop) (wwws.airfrance.fr)<br>Regional airline subsidiary operating daily flights to over one hundred French and European destinations, formed by merging three regional carriers. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Nantes | 408 | 2013 |
| 15 | [ARMOR-IIMAK](https://www.tamtam.ai/c/armor-iimak) (armor-iimak.com)<br>A leading provider of thermal transfer ribbons, offering a comprehensive range of high-quality products and customer-focused solutions worldwide #thermaltransferribbons | Chemical Manufacturing | 🇫🇷 Nantes | 336 |  |
| 16 | [Eurofins Analyses Alimentaires France](https://www.tamtam.ai/c/eurofins-analyses-alimentaires-france) (eurofins.fr)<br>It provides analysis, expertise, audits, and training for food quality, safety, and authenticity, with a strong laboratory network across France. | Biotechnology Research | 🇫🇷 Nantes | 334 | 1987 |
| 17 | [ALTEREA](https://www.tamtam.ai/c/alterea) (alterea.fr)<br>An all-trade and energy engineering company specializing in renovation, construction, and energy optimization projects across various sectors for over 10 years | Construction | 🇫🇷 Nantes | 318 | 2004 |
| 18 | [MADIC group](https://www.tamtam.ai/c/madic-group) (groupe.madic.com)<br>innovative French industrialist in electronic payment, petroleum equipment, services, and Digital Media communication, with a focus on sustainable development values. | Oil and Gas | 🇫🇷 Nantes | 267 | 1971 |
| 19 | [Dawan](https://www.tamtam.ai/c/dawan) (dawan.fr)<br>Professional training company focused on providing enjoyable learning experiences, knowledge sharing, and skill development opportunities for individuals seeking personal growth | Professional Training and Coaching | 🇫🇷 Nantes | 250 | 2000 |
| 20 | [MADIC SAS](https://www.tamtam.ai/c/madic-sas) (groupe.madic.com)<br>A French leader in payment and petrol equipment and services, providing customized solutions for gas stations, renovations, and compliance updates across France, Spain, and Belgium | Oil and Gas | 🇫🇷 Nantes | 237 | 1971 |
| 21 | [Lhyfe](https://www.tamtam.ai/c/lhyfe) (lhyfe.com)<br>Pure player deploying modular, 100% green industrial hydrogen production plants for mobility and industry, clean and accessible. | Renewable Energy Power Generation | 🇫🇷 Nantes | 217 | 2017 |
| 22 | [Vaillant Group France](https://www.tamtam.ai/c/vaillant-group-france) (jobs.vaillant-group.com)<br>Development and manufacturing of heating and cooling systems focused on renewable energy, providing comfort and customized solutions in France. | Renewable Energy Equipment Manufacturing | 🇫🇷 Nantes | 205 |  |
| 23 | [Polysoude S.A.S](https://www.tamtam.ai/c/polysoude-s-a-s) (polysoude.com)<br>Designs, manufactures, and markets equipment for arc welding processes in various industries worldwide, with a focus on high-quality, innovative solutions | Automation Machinery Manufacturing | 🇫🇷 Nantes | 195 | 1961 |
| 24 | [iAdvize](https://www.tamtam.ai/c/iadvize) (iadvize.com)<br>Building AI shopping assistants, transforming digital conversations into over $1 billion in annual online revenue for e-commerce brands. | Technology, Information and Internet | 🇫🇷 Nantes | 184 | 2010 |
| 25 | [Lengow](https://www.tamtam.ai/c/lengow) (lengow.com)<br>E-commerce automation solution enabling brands to improve performance, automate processes, and expand internationally by integrating with 200+ marketplaces and 1,400+ channels | Software Development | 🇫🇷 Nantes | 177 | 2009 |
| 26 | [V.Ships France](https://www.tamtam.ai/c/v-ships-france) (vgrouplimited.com)<br>Established in 2001, specializing in ship management for the tanker, bulker, and gas sectors, providing technical, risk management, procurement, and financial services | Maritime Transportation | 🇫🇷 Nantes | 171 | 2001 |
| 27 | [Knutsen LNG France](https://www.tamtam.ai/c/knutsen-lng-france) (knutsenoas.com)<br>A subsidiary of Knutsen OAS Shipping managing LNG carriers sailing under the RIF Flag with French officers from a French office | Maritime Transportation | 🇫🇷 Nantes | 165 |  |
| 28 | [Secodi](https://www.tamtam.ai/c/secodi) (secodi.fr)<br>SECODI supplies engine parts, integrates power solutions, and provides services for various sectors, specializing in PERKINS® diesel engines in multiple countries | Industrial Machinery Manufacturing | 🇫🇷 Nantes | 140 | 1978 |
| 29 | [proLogistik France (DSIA)](https://www.tamtam.ai/c/prologistik-france-dsia) (logistar-dsia.com)<br>French subsidiary of a pan-European group, publishing, integrating, and hosting supply chain solutions, including WMS, OMS, LMS, TMS, ensuring optimal security and accessibility. | Software Development | 🇫🇷 Nantes | 114 | 1985 |
| 30 | [MyScript](https://www.tamtam.ai/c/myscript) (myscript.com)<br>Leader in real-time handwriting recognition using AI, offering interactive ink technology for digital content creation across various industries Innovating natural human-machine interfaces | Software Development | 🇫🇷 Nantes | 93 | 1998 |

## 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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## The same list elsewhere in France

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Source: https://www.tamtam.ai/l/multinational-companies-nantes