This selection of multinational companies in Loire-Atlantique includes large employers in shipbuilding, higher education, and IT services. Noteworthy firms include Chantiers de l'Atlantique, a marine construction company, and Nantes Université, a key player in research and education. Maisons du Monde specializes in home furnishings, while EURIAL, la branche Lait dAgrial, is a major dairy cooperative. Experis France provides IT services, and SERIS France focuses on security.
A significant concentration of these companies is found in Nantes, which serves as a hub for diverse sectors. Many of the listed organizations are well-established, with several founded in the mid-20th century or earlier, indicating a long-standing industrial and academic presence in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Maisons du Mondemaisonsdumonde.com
Designing and selling accessible, stylish, and sustainable home furnishings and decor collections, inspiring customers to create unique living spaces with a global influence. |
4,273 | |||
| 2 |
Nantes Universitéuniv-nantes.fr
Unites higher education, research, and innovation stakeholders to develop research excellence, especially for future health and industry, offering new training opportunities. |
4,270 | |||
| 3 |
Chantiers de l'Atlantiquechantiers-atlantique.com
Marine construction company, building complex ships and marine installations, including passenger ships and substations. Global leader in design, manufacturing, and commissioning of innovative, environmentally friendly vessels. |
2,472 | |||
| 4 |
Experis Franceexperisfrance.fr
Supports DSI with innovative digital transformation projects, providing IT services and talent solutions to enhance organizational performance, addressing specific needs. |
2,207 | |||
| 5 |
SERIS Franceseris.fr
Provides security services protecting assets and people for businesses and sensitive sectors, emphasizing service quality and professional development. |
1,951 | |||
| 6 |
EURIAL, la branche Lait dAgrialeurial.eu
Leading French dairy cooperative, producing goat cheese, specialty butter, mozzarella, and a range of fresh dairy products. |
1,754 | |||
| 7 |
Audenciaaudencia.com
A leading European business school offering management and communication programs from bachelor to doctoral level, committed to responsible education and development |
1,232 | |||
| 8 | 1,157 | ||||
| 9 |
LACROIX - Electronicslacroix-electronics.com
Design and manufacture embedded electronics for diverse solutions, combining R&D with Industry 4.0 manufacturing in automotive, industrial, and healthcare sectors. |
1,039 | |||
| 10 |
Sercelsercel.com
Leading provider of high-standard subsurface measurement and data solutions for natural resources, infrastructure monitoring, energy transition, and defense sectors since 1956. |
942 | |||
| 11 |
Ministère des Affaires Etrangèresdiplomatie.gouv.fr
A government administration company located in Nantes, France, focused on international affairs and relations |
865 | |||
| 12 |
Catamaniacatamania.com
Provides digital transformation services, consulting, software publishing, and information system architecture for banking, insurance, and retail sectors across international agencies using diverse technical expertise. |
797 | |||
| 13 |
Valnevavalneva.com
Specialty vaccine company developing prophylactic vaccines for infectious diseases, including travel vaccines and candidates for Lyme disease, Zika virus, and more |
666 | |||
| 14 |
CMF GROUPEcmf-groupe.com
A leading industrial group specializing in constructing greenhouses, bioclimatic glass buildings for agriculture, research, retail, and international markets |
651 | |||
| 15 |
Sce Aménagement & Environnementsce.fr
Sustainable development firm offering urban planning, civil engineering, and environmental services globally with 45+ years of experience and 500 professionals |
625 | |||
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. | |||||
| 16 | 610 | ||||
| 17 |
ACBacb-ps.com
A company based in France specializing in metal forming for aeronautical structures, engines, and aircraft manufacturing Offers simulation, design, construction, and installation services |
607 | |||
| 18 |
Centrale Nantesec-nantes.fr
Trains versatile engineers with high scientific, technical levels and strong managerial culture, integrating environmental, societal issues into global contexts. |
600 | |||
| 19 |
Abalone Franceabalone-interim.com
Specialized in HR services, temporary work, recruitment, and training since 1991, this company focuses on satisfying client needs and increasing employee employability |
549 | |||
| 20 | 534 | ||||
| 21 |
SGT Groupesgt-pet.com
Production of food-grade RPET preforms and plastic packaging across 14 sites, focusing on reliable, innovative, and eco-friendly solutions. |
507 | |||
| 22 |
FÉTIS Groupfetis.group
Provides engineering products and services for off-road machinery, specialized vehicles, power generation, marine power, and manufacturing industries with focus on decarbonization. |
501 | |||
| 23 |
NEWCLIP TECHNICSnewcliptechnics.com
Design manufacture and market innovative osteosynthesis implants for elective surgery and traumatology with focus on quality and performance. |
500 | |||
| 24 |
4CAD Group4cadgroup.com
The company offers PLM, ERP, and IoT tools to help organizations optimize their information systems for increased industrial efficiency |
463 | |||
| 25 |
SPIspi-groupe.com
A leading player in Painting and Waterproofing, serving major industrial sectors such as aerospace, rail, and maritime with 600 employees worldwide |
433 | |||
| 26 |
Akeneoakeneo.com
Empowering business leaders with software, education, and community for product experience management. Offering intelligent Product Cloud for data enrichment, management, and syndication. |
427 | |||
| 27 |
EBTransebtrans.com
A European leader in transport and logistics of sensitive materials, offering tailored services in over 14 countries with a focus on respect, safety, and responsibility |
422 | |||
| 28 |
Air France HOPwwws.airfrance.fr
Regional airline subsidiary operating daily flights to over one hundred French and European destinations, formed by merging three regional carriers. |
408 | |||
| 29 |
Atlantic Ingénierieatlantic-ingenierie.com
Engineering firm specializing in energy and telecommunication network deployment, providing expert studies and support for projects of all sizes. |
385 | |||
| 30 | 380 | ||||
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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.
More company lists in the Loire-Atlantique department
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- Companies with in-house R&D in the Loire-Atlantique department 207
- Retail chains in the Loire-Atlantique department 163
- Professional services firms in the Loire-Atlantique department 158
- Software Development companies in the Loire-Atlantique department 137
- SaaS companies in the Loire-Atlantique department 135
- IT services companies in the Loire-Atlantique department 130
- Manufacturers in the Loire-Atlantique department 125
- IT Services and IT Consulting companies in the Loire-Atlantique department 110
- Consulting firms in the Loire-Atlantique department 94
- Distributors and wholesalers in the Loire-Atlantique department 94
- Hardware manufacturers in the Loire-Atlantique department 86
- Business Consulting and Services companies in the Loire-Atlantique department 83
- Public sector organisations in the Loire-Atlantique department 82
- Family-owned companies in the Loire-Atlantique department 71
- Education providers in the Loire-Atlantique department 68
- Real Estate companies in the Loire-Atlantique department 67
- Financial services firms in the Loire-Atlantique department 65
- Law Practice companies in the Loire-Atlantique department 62
- Retail companies in the Loire-Atlantique department 61
- Subscription businesses in the Loire-Atlantique department 61
- Critical infrastructure operators in the Loire-Atlantique department 59
- Events Services companies in the Loire-Atlantique department 58
- Construction companies in the Loire-Atlantique department 57
The same list elsewhere in France
- Multinational companies in France 11,864
- Multinational companies in Île-de-France 6,028
- Multinational companies in Auvergne-Rhône-Alpes 1,318
- Multinational companies in the Hauts-de-Seine department 1,231
- Multinational companies in Grand Est 787
- Multinational companies in Provence-Alpes-Côte d'Azur 638
- Multinational companies in the Rhône department 577
- Multinational companies in Occitanie 532
- Multinational companies in Hauts-de-France 511
- Multinational companies in Nouvelle-Aquitaine 450
- Multinational companies in Pays de la Loire 390
- Multinational companies in the Bouches-du-Rhône department 351
- Multinational companies in the Nord department 332
- Multinational companies in Brittany 264
- Multinational companies in the Haute-Garonne department 246
- Multinational companies in the Yvelines department 226
- Multinational companies in Bourgogne-Franche-Comté 220
- Multinational companies in Normandy 216
- Multinational companies in the Gironde department 200
- Multinational companies in the Val-de-Marne department 200
- Multinational companies in the Seine-Saint-Denis department 198
- Multinational companies in Paris 3,531
- Multinational companies in Lyon 283
- Multinational companies in Boulogne-Billancourt 188