# The 30 largest education providers in the Hauts-de-Seine department

Tamtam tracks 159 education providers headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Croix-Rouge française, Synergie France and CESI. Their median headcount is 703. Half of them were founded in 1989 or later. The most common headquarters are Levallois-Perret (8), Courbevoie (6) and Montrouge (4).

These companies are primarily large and mid-sized organizations focused on education, professional training, and human resources within the Hauts-de-Seine department. The sector includes a mix of private and non-profit entities, with a strong emphasis on vocational and higher education, as well as broader HR services and social support.

Key players include My own company, providing project management and English teaching; Croix-Rouge française, managing health and training establishments; Synergie France, a leader in HR services; and CESI, an engineering school with vocational training. A notable pattern is the concentration of headquarters in cities like Courbevoie and Levallois-Perret, indicating a hub for educational and professional service providers.

🇫🇷 Hauts-de-Seine · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Croix-Rouge française](https://www.tamtam.ai/c/croix-rouge-francaise) (croix-rouge.fr)<br>Manages a network of health, medico-social, and training establishments and services, employing staff dedicated to assisting vulnerable populations. | Non-profit Organizations | 🇫🇷 Montrouge | 10,865 | 1864 |
| 2 | [Synergie France](https://www.tamtam.ai/c/synergie-france) (synergie.fr)<br>French leader in HR services: recruitment, training, and HR consulting Providing solutions in various sectors, emphasizing proximity, performance, and diversity | Human Resources Services | 🇫🇷 Boulogne-Billancourt | 4,804 |  |
| 3 | [CESI](https://www.tamtam.ai/c/cesi) (cesi.fr)<br>Engineering school providing vocational training from Bac+2 to Bac+8, specializing in construction, industry, IT, QSE, and HR, with applied research for businesses. | Higher Education | 🇫🇷 Puteaux | 3,457 | 1958 |
| 4 | [Réseau Compétences et Développement](https://www.tamtam.ai/c/reseau-competences-et-developpement) (competences-developpement.com)<br>Network of higher education schools and training centers in France and internationally, preparing professionals across various fields, from management to tech. | Higher Education | 🇫🇷 Courbevoie | 3,434 | 1979 |
| 5 | [Babilou](https://www.tamtam.ai/c/babilou) (babilou.fr)<br>International network of nurseries and schools providing parenting solutions for employees through high-quality childcare facilities and professional work-life balance support services worldwide. | Individual and Family Services | 🇫🇷 Bois-Colombes | 1,686 | 2003 |
| 6 | [IFP School](https://www.tamtam.ai/c/ifp-school) (ifp-school.com)<br>Graduate engineering school specializing in energy, sustainable mobility, motorization, economy, processes, and energy transition technologies and solutions. | Higher Education | 🇫🇷 Rueil-Malmaison | 1,339 | 1954 |
| 7 | [Cegos France](https://www.tamtam.ai/c/cegos-france) (cegos.fr)<br>Provides extensive professional training and development programs across management, leadership, HR, marketing, and project management internationally with expert consultants. | Professional Training and Coaching | 🇫🇷 Issy-les-Moulineaux | 1,259 | 1926 |
| 8 | [Ifac association](https://www.tamtam.ai/c/ifac-association) (ifac.asso.fr)<br>A major actor in French educational activities, providing educational and recreational programs to complement school for communities and associations | Non-profit Organizations | 🇫🇷 Asnières-sur-Seine | 1,208 | 1975 |
| 9 | [Pigier](https://www.tamtam.ai/c/pigier) (pigier.com)<br>PIGIER is a network of professional schools in France offering validated educational courses leading to state diplomas or professional certifications | Professional Training and Coaching | 🇫🇷 Levallois-Perret | 1,139 |  |
| 10 | [Croix-Rouge Compétence](https://www.tamtam.ai/c/croix-rouge-competence) (croix-rouge.fr)<br>Manages 157 training institutes across 60 sites, specializing in healthcare, social, and occupational health and safety. Prepares individuals for 30 professions and supports professionals skill development. | Higher Education | 🇫🇷 Montrouge | 1,093 | 1864 |
| 11 | [EPIDE Défense 2e Chance](https://www.tamtam.ai/c/epide-defense-2e-chance) (epide.fr)<br>Support young people aged 18 to 25 without diplomas or qualifications, helping them reintegrate into employment and society. | Government Administration | 🇫🇷 Malakoff | 1,089 | 2005 |
| 12 | [SOFTEAM](https://www.tamtam.ai/c/softeam) (softeam.com)<br>Accompanying transformations long-term; imagining, designing, operating future services; combining consulting, digital solutions, and service excellence for various sectors, leveraging over 1,650 experts. | IT Services and IT Consulting | 🇫🇷 Courbevoie | 1,003 | 1989 |
| 13 | [Lefebvre Dalloz](https://www.tamtam.ai/c/lefebvre-dalloz) (lefebvre-dalloz.fr)<br>A leading provider of legal and tax knowledge through publishing, training, and software services, catering to various professionals and businesses in France | Information Services | 🇫🇷 Courbevoie | 728 |  |
| 14 | [CCI France](https://www.tamtam.ai/c/cci-france) (cci.fr)<br>Federation of French Chambers of Commerce supporting 2 million companies with economic intelligence, development, education, and environmental sustainability coordination. | Government Administration | 🇫🇷 Levallois-Perret | 713 | 1964 |
| 15 | [Skill and You](https://www.tamtam.ai/c/skill-and-you) (skillandyou.com)<br>Making training and professional success accessible to everyone with a catalog of more than 200 courses for learners across France and beyond. | E-Learning Providers | 🇫🇷 Levallois-Perret | 703 | 2000 |
| 16 | [EPSI - L'école d'ingénierie informatique](https://www.tamtam.ai/c/epsi-l-ecole-d-ingenierie-informatique) (epsi.fr)<br>Educates future IT experts from two to five years of post-secondary education, across various specializations like AI, cybersecurity, cloud, data, development, and infrastructure. | Education Administration Programs | 🇫🇷 Courbevoie | 641 | 1961 |
| 17 | [EDUSERVICES](https://www.tamtam.ai/c/eduservices) (groupe-eduservices.fr)<br>Leading private group providing professional training, national schools, and vocational degrees from vocational certificates to masters levels through apprenticeships and specialized campus networks. | Education Administration Programs | 🇫🇷 Levallois-Perret | 603 | 2010 |
| 18 | [Win Sport School](https://www.tamtam.ai/c/win-sport-school) (win-sport-school.com)<br>Management school specializing in sport, marketing, event organization, sponsorship, and commercial development with programs across Europe and France. | Higher Education | 🇫🇷 Levallois-Perret | 582 |  |
| 19 | [Ipac Bachelor Factory](https://www.tamtam.ai/c/ipac-bachelor-factory) (ipacbachelorfactory.com)<br>A post-baccalaureate business school offering 19 three-year programs, focused on employability Recognized for innovative, practical education with top-ranked programs in various fields | Higher Education | 🇫🇷 Levallois-Perret | 558 | 2014 |
| 20 | [IFCAM](https://www.tamtam.ai/c/ifcam) (ca-ifcam.fr)<br>IFCAM is the training center serving the development of human capital for the Crédit Agricole Group through innovative and specialized programs | Professional Training and Coaching | 🇫🇷 Montrouge | 555 | 1976 |
| 21 | [Groupe Promotrans](https://www.tamtam.ai/c/groupe-promotrans) (promotrans.fr)<br>Professional training provider specializing in logistics, supply chain, freight and passenger transport, industrial vehicle maintenance, construction, and workplace safety since 1966. | Professional Training and Coaching | 🇫🇷 Levallois-Perret | 549 | 1966 |
| 22 | [ESILV - Ecole Supérieure d'Ingénieurs Léonard de Vinci](https://www.tamtam.ai/c/esilv-ecole-superieure-d-ingenieurs-leonard-de-vinci) (esilv.fr)<br>A specialized graduate school of engineering focused on digital sciences with 4 major specializations offering comprehensive education and international opportunities for students | Higher Education | 🇫🇷 Courbevoie | 521 | 1995 |
| 23 | [Hervé Schauer Consultants (HSC)](https://www.tamtam.ai/c/herve-schauer-consultants-hsc) (hs2.fr)<br>Provides information security consulting, audits, penetration tests, risk management, and training services to secure diverse infrastructures and systems. | Computer and Network Security | 🇫🇷 Neuilly-sur-Seine | 500 | 1989 |
| 24 | [PSE-Pour un Sourire d'enfant](https://www.tamtam.ai/c/pse-pour-un-sourire-d-enfant) (pse.ong)<br>A non-profit organization in Cambodia helping children in need with nutrition, healthcare, education, vocational training, and family support programs | Philanthropic Fundraising Services | 🇫🇷 Suresnes | 473 | 1995 |
| 25 | [EMLV - École de Management Léonard de Vinci](https://www.tamtam.ai/c/emlv-ecole-de-management-leonard-de-vinci) (emlv.fr)<br>French business and management school offering Master's degree, Grande Ecole Programme, MSc's, and MBA Accredited by AACSB, AMBA, & EFMD | Education Administration Programs | 🇫🇷 Courbevoie | 464 | 1995 |
| 26 | [OPCO Mobilités](https://www.tamtam.ai/c/opco-mobilites) (opcomobilites.fr)<br>Finances training, apprenticeships, and skill development for mobility sector employees. Supports anticipating future job needs, creating certifications, and promoting professions in automotive, logistics, and transport. | Professional Training and Coaching | 🇫🇷 Boulogne-Billancourt | 441 | 2019 |
| 27 | [GNFA](https://www.tamtam.ai/c/gnfa) (mobipolis.fr)<br>Provides tailored training, consulting, and evaluation services to automotive businesses, enhancing workforce skills and supporting company growth. | Technical and Vocational Training | 🇫🇷 Meudon | 427 | 1973 |
| 28 | [IECD - Institut Européen de Coopération et de Développement](https://www.tamtam.ai/c/iecd-institut-europeen-de-cooperation-et-de-developpement) (iecd.org)<br>A development organization in Africa, MENA, Madagascar, and Southeast Asia, empowering youth, adults, professionals, and communities through vocational training, entrepreneurship support, education, and healthcare | Non-profit Organizations | 🇫🇷 Montrouge | 417 | 1988 |
| 29 | [AFCI Formation](https://www.tamtam.ai/c/afci-formation) (afci-formation.fr)<br>Professional training and consulting services focused on employment integration, specializing in hospitality, social, and healthcare sectors. | Professional Training and Coaching | 🇫🇷 Boulogne-Billancourt | 380 | 1993 |
| 30 | [OPCO Santé](https://www.tamtam.ai/c/opco-sante) (bit.ly)<br>Manages professional training funds, offers employment and training solutions, facilitates apprenticeships, and supports small and medium-sized businesses in the health sector. | Professional Training and Coaching | 🇫🇷 Levallois-Perret | 364 | 2019 |

## 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 12, 2026.

## More company lists in the Hauts-de-Seine department

- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Marketing and communications agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine) (235)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)
- [Energy companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/energy-companies-hauts-de-seine) (144)

## The same list elsewhere in France

- [Education providers in Île-de-France](https://www.tamtam.ai/l/education-companies-ile-de-france) (1,300)
- [Education providers in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/education-companies-auvergne-rhone-alpes) (309)
- [Education providers in Grand Est](https://www.tamtam.ai/l/education-companies-grand-est) (215)
- [Education providers in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/education-companies-provence-alpes-cote-dazur) (212)
- [Education providers in Occitanie](https://www.tamtam.ai/l/education-companies-occitanie) (201)
- [Education providers in Nouvelle-Aquitaine](https://www.tamtam.ai/l/education-companies-nouvelle-aquitaine) (173)
- [Education providers in the Rhône department](https://www.tamtam.ai/l/education-companies-rhone) (154)
- [Education providers in Hauts-de-France](https://www.tamtam.ai/l/education-companies-hauts-de-france) (148)
- [Education providers in Pays de la Loire](https://www.tamtam.ai/l/education-companies-pays-de-la-loire) (143)
- [Education providers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/education-companies-bouches-du-rhone) (119)
- [Education providers in Brittany](https://www.tamtam.ai/l/education-companies-brittany) (112)
- [Education providers in the Nord department](https://www.tamtam.ai/l/education-companies-nord) (103)
- [Education providers in Normandy](https://www.tamtam.ai/l/education-companies-normandy) (100)
- [Education providers in the Haute-Garonne department](https://www.tamtam.ai/l/education-companies-haute-garonne) (94)
- [Education providers in the Gironde department](https://www.tamtam.ai/l/education-companies-gironde) (80)
- [Education providers in the Val-de-Marne department](https://www.tamtam.ai/l/education-companies-val-de-marne) (72)
- [Education providers in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/education-companies-bourgogne-franche-comte) (69)
- [Education providers in the Seine-Saint-Denis department](https://www.tamtam.ai/l/education-companies-seine-saint-denis) (69)
- [Education providers in the Loire-Atlantique department](https://www.tamtam.ai/l/education-companies-loire-atlantique) (68)
- [Education providers in the Hérault department](https://www.tamtam.ai/l/education-companies-herault) (61)
- [Education providers in the Ille-et-Vilaine department](https://www.tamtam.ai/l/education-companies-ille-et-vilaine) (60)
- [Education providers in Paris](https://www.tamtam.ai/l/education-companies-paris) (812)
- [Education providers in Lyon](https://www.tamtam.ai/l/education-companies-lyon) (107)
- [Education providers in Toulouse](https://www.tamtam.ai/l/education-companies-toulouse) (67)

## The same list elsewhere

- [Education providers in the world](https://www.tamtam.ai/l/education-companies-in-the-world) (23,937)
- [Education providers in Europe](https://www.tamtam.ai/l/education-companies-in-europe) (7,925)

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Source: https://www.tamtam.ai/l/education-companies-hauts-de-seine