The companies listed are primarily higher education institutions and professional training organizations located in Loire-Atlantique, predominantly in Nantes. They range from established universities like Nantes Université and Audencia to specialized schools such as ENI Ecole Informatique, which focuses on IT education, and Oniris Nantes, dedicated to animal health and food sciences. The list also includes organizations like RETRAVAILLER DANS L OUEST, which provides career development support, and Germe, which offers management training for executives.
A clear pattern among these organizations is their concentration in Nantes, with the vast majority having their headquarters in the city. Additionally, many of these institutions, such as Nantes Université (founded 1460) and Conservatoire National des Arts et Metiers (founded 1794), have long histories, indicating a well-established and enduring educational infrastructure in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
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 | |||
| 3 |
Groupe Alternancegroupe-alternance.com
Network of over 70 schools across France offering alternance-based higher education from Bac to Bac+5 with professional training. |
799 | |||
| 4 |
RETRAVAILLER DANS L OUESTretravailler-ouest.fr
Training organization providing certifications and personalized support for job seekers, employees, and students in managing their skills and career development |
647 | |||
| 5 | 618 | ||||
| 6 |
Oniris Nantesoniris-nantes.fr
Educates veterinarians, superior technicians, and engineers in animal health, public health, food sciences, and bioprocesses, actively supporting 'one medicine, one health'. |
543 | |||
| 7 |
ENI Ecole Informatiqueeni-ecole.fr
Specializing in IT higher education for over 40 years, offering courses in Development and Systems & Networks with flexible learning opportunities and placement services |
528 | |||
| 8 |
L'École de design Nantes Atlantiquelecolededesign.com
Educates students in design, creation, innovation at bachelor's and master's levels, including vocational and executive programs for organizations. |
519 | |||
| 9 |
Germe, le réseau de progrès des managersgerme.com
An organization providing training in management for executive leaders and managers to foster collective intelligence and innovative organizational practices |
420 | |||
| 10 |
Conservatoire National des Arts et Metiers (Pays de la Loire - France)cnam-paysdelaloire.fr
Provides higher education degrees and vocational diplomas through various institutes, delivering official certifications and diplomas in multiple fields. |
419 | |||
| 11 |
Réseau GRETA-CFA des Pays de la Loiregreta-cfa-paysdelaloire.fr
Group of public educational institutions pooling resources to offer adult continuing education tailored to local economic needs and equipment. |
394 | |||
| 12 |
CMA Pays de la Loireartisanatpaysdelaloire.fr
Represents, defends, and advises 92,360 establishments, supporting economic and social development, with a focus on training future craftspeople. |
357 | |||
| 13 |
Accoordaccoord.fr
A well-established association in Nantes offering cultural and recreational activities for families, focusing on education, social values, and community engagement |
352 | |||
| 14 |
BTP CFA Pays de la Loirebtpcfa-pdl.com
A leading training organization in the building trades in Pays de la Loire, training over 5000 apprentices and continuing education students on 5 sites |
343 | |||
| 15 |
Faculté de Droit et des Sciences Politiques de Nantes Universitédroit.univ-nantes.fr
A leading component of Nantes University offering diverse legal and political science programs, research collaborations, international openness, and competent staff attracting growing student enrollment |
326 | |||
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| 16 |
La Joliveriela-joliverie.com
Educates thousands of young people annually across various fields through over 75 programs up to master's level degrees. |
319 | |||
| 17 |
IUT de Nantesiutnantes.univ-nantes.fr
Higher education institution offering multidisciplinary technological degrees from Bac+3 to Bac+5 with strong industry ties and research focus. |
294 | |||
| 18 |
IUT Saint-Nazaireiutsn.fr
Specializing in sustainability training to prepare individuals for a sustainable future |
273 | |||
| 19 | 250 | ||||
| 20 |
ensa Nantesnantes.archi.fr
A public institution offering architectural education and research, preparing students for the architect diploma, with international partnerships and a strategic alliance with two other schools |
249 | |||
| 21 |
École ISMEisme.fr
Providing vocational training in the fields of Commerce, Marketing, Communication, Management, Banking, HR, and Digital through BTS, Bachelor, and Master programs Offering both alternating and traditional paths |
243 | |||
| 22 |
IEMN-IAEiae.univ-nantes.fr
A leading institution in Nantes offering education in economics, finance, management, and professional development through internships, projects, and international experiences |
221 | |||
| 23 |
Arinfo - Centre de formation professionnelle / Écolearinfo.fr
A professional training organization specializing in digital skills, offering certified courses in various domains through multimodal learning methods for all audiences |
204 | |||
| 24 |
Editions ENIeditions-eni.fr
Creation and publishing of IT training materials including printed and digital books, course supports, and online e-learning for all skill levels. |
187 | |||
| 25 |
KOSMOSkosmos-education.com
Specializing in digital education solutions, this company implements web portals, e-portfolios, mobile apps, and other digital tools for schools |
141 | |||
| 26 |
Ecole nationale vétérinaire de Nantesoniris-nantes.fr
Oniris is a higher education and research institution under the Ministry of Agriculture and Food, located in Nantes, France |
121 | |||
| 27 |
Audencia business school PAGE SUPPRIMEElinkedin.com
This page is now inactive Follow "Audencia Relations Entreprise" for updates and news related to the company's business operations |
115 | |||
| 28 |
Lycée Eugène Livetlivet.paysdelaloire.e-lyco.fr
Specializing in technological excellence, providing innovative solutions and services to clients across various industries Quality, innovation, and expertise are our core values |
105 | |||
| 29 |
Beaux-Arts Nantes Saint-Nazairebeauxartsnantes.fr
An art school in Nantes Saint-Nazaire offering state diplomas in Art, a master's program, and an international preparatory program in various artistic disciplines |
79 | |||
| 30 |
IMS Nantesims-nantes.com
A small school in Nantes specializing in Bac+2 and Bac+3 programs, providing personalized education services |
73 | |||
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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 13, 2026.
More company lists in the Loire-Atlantique department
- The largest companies in the Loire-Atlantique department 2,044
- Companies with in-house R&D in the Loire-Atlantique department 207
- Retail chains in the Loire-Atlantique department 162
- Multinational companies in the Loire-Atlantique department 159
- 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 80
- Family-owned companies in the Loire-Atlantique department 71
- 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 58
- Events Services companies in the Loire-Atlantique department 58
- Construction companies in the Loire-Atlantique department 57
The same list elsewhere in France
- Education providers in Île-de-France 1,300
- Education providers in Auvergne-Rhône-Alpes 309
- Education providers in Grand Est 215
- Education providers in Provence-Alpes-Côte d'Azur 212
- Education providers in Occitanie 201
- Education providers in Nouvelle-Aquitaine 173
- Education providers in the Hauts-de-Seine department 159
- Education providers in the Rhône department 154
- Education providers in Hauts-de-France 148
- Education providers in Pays de la Loire 143
- Education providers in the Bouches-du-Rhône department 119
- Education providers in Brittany 112
- Education providers in the Nord department 103
- Education providers in Normandy 100
- Education providers in the Haute-Garonne department 94
- Education providers in the Gironde department 80
- Education providers in the Val-de-Marne department 72
- Education providers in Bourgogne-Franche-Comté 69
- Education providers in the Seine-Saint-Denis department 69
- Education providers in the Hérault department 61
- Education providers in the Ille-et-Vilaine department 60
- Education providers in Paris 812
- Education providers in Lyon 107
- Education providers in Toulouse 67