# The 30 largest Professional Training and Coaching companies in the Loire-Atlantique department
Tamtam tracks 42 Professional Training and Coaching companies headquartered in the Loire-Atlantique department. This list ranks the 30 largest by number of employees on LinkedIn, led by RETRAVAILLER DANS L OUEST, Germe, le réseau de progrès des managers and Réseau GRETA-CFA des Pays de la Loire. Their median headcount is 29. Half of them were founded in 1996 or later. The most common headquarters are Nantes (19), Saint-Nazaire (4) and Saint-Herblain (3).
The companies in Loire-Atlantique specialize in professional training and coaching, primarily catering to employees, job seekers, and managers. Most are well-established, mid-sized firms, with a concentration of headquarters in Nantes.
Among them, RETRAVAILLER DANS L OUEST offers certifications and career development support, while Germe focuses on management training for leaders. Dawan provides professional training for skill development, and Arinfo specializes in digital skills. A clear pattern is the dominance of Nantes as a hub for these training organizations.
🇫🇷 Loire-Atlantique · 30 companies · Updated Nov 14, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [RETRAVAILLER DANS L OUEST](https://www.tamtam.ai/c/retravailler-dans-l-ouest) (retravailler-ouest.fr)
Training organization providing certifications and personalized support for job seekers, employees, and students in managing their skills and career development | Professional Training and Coaching | 🇫🇷 Nantes | 647 | 1974 |
| 2 | [Germe, le réseau de progrès des managers](https://www.tamtam.ai/c/germe-le-reseau-de-progres-des-managers) (germe.com)
An organization providing training in management for executive leaders and managers to foster collective intelligence and innovative organizational practices | Professional Training and Coaching | 🇫🇷 Nantes | 420 | 1998 |
| 3 | [Réseau GRETA-CFA des Pays de la Loire](https://www.tamtam.ai/c/reseau-greta-cfa-des-pays-de-la-loire) (greta-cfa-paysdelaloire.fr)
Group of public educational institutions pooling resources to offer adult continuing education tailored to local economic needs and equipment. | Professional Training and Coaching | 🇫🇷 Nantes | 394 | |
| 4 | [Dawan](https://www.tamtam.ai/c/dawan) (dawan.fr)
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 |
| 5 | [Arinfo - Centre de formation professionnelle / École](https://www.tamtam.ai/c/arinfo-centre-de-formation-professionnelle-ecole) (arinfo.fr)
A professional training organization specializing in digital skills, offering certified courses in various domains through multimodal learning methods for all audiences | Professional Training and Coaching | 🇫🇷 Nantes | 204 | 1992 |
| 6 | [ASENSILE](https://www.tamtam.ai/c/asensile) (asensile.com)
ASENSILE provides personalized professional development services for individuals and businesses, helping them navigate career challenges and reach success with a human-centered approach 🚀💼 | Professional Training and Coaching | 🇫🇷 Nantes | 121 | |
| 7 | [CFP Presqu'île](https://www.tamtam.ai/c/cfp-presqu-ile) (cfp-presquile.fr)
The company offers training, professional insertion, and social support through individual and collective programs, focusing on job search support, skills development, and career orientation | Professional Training and Coaching | 🇫🇷 Saint-Nazaire | 97 | 1995 |
| 8 | [URMA Loire-Atlantique](https://www.tamtam.ai/c/urma-loire-atlantique) (urmapaysdelaloire.fr)
A vocational training center in Pays de la Loire offering over 45 diplomas in 5 sectors from CAP to BTS level | Professional Training and Coaching | 🇫🇷 Sainte-Luce-sur-Loire | 56 | 1987 |
| 9 | [ENI Service - Centre de Formation](https://www.tamtam.ai/c/eni-service-centre-de-formation) (eni-service.fr)
Provides certified training in IT, graphic design, web, and office software through e-learning and in-person sessions across multiple locations. | Professional Training and Coaching | 🇫🇷 Saint-Herblain | 54 | 1981 |
| 10 | [GRAFIPOLIS (AFIIG)](https://www.tamtam.ai/c/grafipolis-afiig) (grafipolis.fr)
With over 90 years of experience in professional training for the printing and graphic industries, the company offers apprenticeships, continuing education, and diverse industry-specific programs | Professional Training and Coaching | 🇫🇷 Nantes | 53 | 1926 |
| 11 | [360Formation](https://www.tamtam.ai/c/360formation) (360formation.fr)
360 Formation offers in-person and e-learning training throughout France, combining expertise in both business and education to meet the needs of companies and individuals | Professional Training and Coaching | 🇫🇷 Saint-Nazaire | 37 | 2017 |
| 12 | [aléo Prévention](https://www.tamtam.ai/c/aleo-prevention) (aleofrance.fr)
Specializing in workplace safety, offering innovative training solutions in Nantes, Saint Nazaire, Rennes, and Challans, focusing on reducing accidents and illnesses, and providing expert advice | Professional Training and Coaching | 🇫🇷 Sainte-Luce-sur-Loire | 36 | 2007 |
| 13 | [CAP EMPLOI 44](https://www.tamtam.ai/c/cap-emploi-44) (blackmeridian.fr)
A service supporting people with disabilities in Loire-Atlantique to find and maintain employment, focusing on diversity as a key asset | Professional Training and Coaching | 🇫🇷 Nantes | 32 | 2002 |
| 14 | [H3O Richesses Humaines](https://www.tamtam.ai/c/h3o-richesses-humaines) (h3o-rh.fr)
An alliance of three specialists focused on being an expertise hub offering specific recruitment solutions, consultancy, training, and transitional resources to enhance corporate human potential | Professional Training and Coaching | 🇫🇷 Nantes | 32 | 1986 |
| 15 | [Transitions Pro Pays de la Loire](https://www.tamtam.ai/c/transitions-pro-pays-de-la-loire) (transitionspro-pdl.fr)
Transitions Pro supports employees in their career change endeavors | Professional Training and Coaching | 🇫🇷 Nantes | 29 | 1983 |
| 16 | [Formation continue de Nantes Université](https://www.tamtam.ai/c/formation-continue-de-nantes-universite) (univ-nantes.fr)
A regional leader in continuing education, leveraging 40 years of experience to support project success by providing expert advice and professional training | Professional Training and Coaching | 🇫🇷 Nantes | 27 | 1973 |
| 17 | [ARTES Formations](https://www.tamtam.ai/c/artes-formations) (artes-formations.fr)
Specialized professional training for support functions in culture, event, sport, communication, social economy, management, administration, and logistics across multiple French cities. | Professional Training and Coaching | 🇫🇷 Nantes | 22 | 2005 |
| 18 | [Forsyfa](https://www.tamtam.ai/c/forsyfa) (forsyfa.com)
The training organization offers systemic approach training for professionals in education, healthcare, social work, and mediation, focusing on practical application | Professional Training and Coaching | 🇫🇷 Nantes | 21 | 1988 |
| 19 | [PIVOT POINT FRANCE](https://www.tamtam.ai/c/pivot-point-france) (pivot-point.fr)
The company creates educational resources for the hairdressing industry, used in 68 countries, to facilitate skill transmission for trainers and independence for learners | Professional Training and Coaching | 🇫🇷 Saint-Sébastien-sur-Loire | 21 | 1985 |
| 20 | [Le Périscop](https://www.tamtam.ai/c/le-periscop) (leperiscop.fr)
An innovative cooperative of independent entrepreneurs providing legal, social, accounting, and fiscal support, along with training, networking, and skill-sharing opportunities | Professional Training and Coaching | 🇫🇷 Saint-Nazaire | 20 | 2014 |
| 21 | [APC MANAGEMENT](https://www.tamtam.ai/c/apc-management) (apc-management.fr)
APC Management provides training and consulting services in management, commerce, and personal development, focusing on human-centered organizational transformation | Professional Training and Coaching | 🇫🇷 Nantes | 17 | 2006 |
| 22 | [Un Parrain 1 Emploi](https://www.tamtam.ai/c/un-parrain-1-emploi) (parrainemploi.com)
A free and personalized mentoring program connecting job seekers with industry professionals to improve job search strategies, with a high success rate | Professional Training and Coaching | 🇫🇷 Nantes | 16 | 1996 |
| 23 | [Constructys Pays de la Loire](https://www.tamtam.ai/c/constructys-pays-de-la-loire) (constructys.fr)
Constructys is a skills operator in the construction industry, supporting companies and employees with training, certification, and apprenticeship programs for future roles | Professional Training and Coaching | 🇫🇷 Nantes | 16 | 1973 |
| 24 | [Qualité Assurance™](https://www.tamtam.ai/c/qualite-assurance) (qualite-assurance.fr)
This company offers training programs to insurance professionals to improve the quality of their services and meet evolving customer expectations and regulations | Professional Training and Coaching | 🇫🇷 Nantes | 13 | 2001 |
| 25 | [Resonnance](https://www.tamtam.ai/c/resonnance) (resonnance-relationclient.fr)
A Nantes-based company with 20 years of experience specializing in customer relationship management through consulting, contact management, and custom training services | Professional Training and Coaching | 🇫🇷 Saint-Herblain | 13 | |
| 26 | [Regard9](https://www.tamtam.ai/c/regard9) (regard9.com)
The company specializes in training individuals and teams within businesses to work more effectively by understanding their habits, talents, and embracing change | Professional Training and Coaching | 🇫🇷 Orvault | 13 | 1999 |
| 27 | [CJD Saint Nazaire Loire et Mer](https://www.tamtam.ai/c/cjd-saint-nazaire-loire-et-mer) (cjd.net)
The company is a network of engaged and humanistic entrepreneurs who work together to develop responsible, sustainable, and enjoyable businesses | Professional Training and Coaching | 🇫🇷 Saint-Nazaire | 13 | |
| 28 | [Ipsum - Intelligence collective et coaching](https://www.tamtam.ai/c/ipsum-intelligence-collective-et-coaching) (ipsum.fr)
This company offers personalized coaching, collaborative workshops, and training sessions to help develop employee engagement, common vision, and effective communication in the workplace | Professional Training and Coaching | 🇫🇷 Nantes | 12 | 2004 |
| 29 | [UpTogether](https://www.tamtam.ai/c/uptogether) (uptogether.com)
UpTogether offers customized and practical online training workshops for mid-level managers to meet their evolving needs and enhance their skills | Professional Training and Coaching | 🇫🇷 Nantes | 12 | 2019 |
| 30 | [FORMACOM](https://www.tamtam.ai/c/formacom) (formacom.fr)
With over 28 years of experience, this consulting and training firm specializes in HR, management, and skills development for businesses | Professional Training and Coaching | 🇫🇷 Saint-Herblain | 12 | 1988 |
## 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 14, 2026.
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Source: https://www.tamtam.ai/l/professional-training-and-coaching-companies-loire-atlantique