# Top 29 public sector organisations in the Morbihan department

Tamtam tracks 29 public sector organisations headquartered in the Morbihan department. This list ranks all of them by number of employees on LinkedIn, led by Département du Morbihan, GROUPE HOSPITALIER BRETAGNE SUD and Service Départemental d'Incendie et de Secours du Morbihan (SDIS56). Their median headcount is 123. Half of them were founded in 2007 or later. The most common headquarters are Vannes (11) and Lorient (10).

The public sector organizations in Morbihan are primarily involved in government administration, healthcare, and education. These are large organizations, with the Département du Morbihan managing public services and GROUPE HOSPITALIER BRETAGNE SUD providing extensive medical care. Other key entities include Service Départemental d'Incendie et de Secours du Morbihan, which handles emergency interventions, and Académie militaire de Saint-Cyr Coëtquidan, which trains army officers.

A notable pattern is the concentration of headquarters in Vannes, which hosts several major entities like morbihan habitat, focused on social housing, and Golfe du Morbihan - Vannes agglomération, coordinating public services across 34 municipalities. This indicates Vannes as a central hub for public administration and services within the department.

🇫🇷 Morbihan · 29 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Département du Morbihan](https://www.tamtam.ai/c/departement-du-morbihan) (morbihan.fr)<br>Manages public services across a dynamic region, encompassing urban, rural, and coastal areas, supporting residents in daily life, family, education, and environment. | Government Administration | 🇫🇷 Vannes | 520 |  |
| 2 | [GROUPE HOSPITALIER BRETAGNE SUD](https://www.tamtam.ai/c/groupe-hospitalier-bretagne-sud) (ghbs.bzh)<br>Public healthcare institution in South Brittany offering extensive medical care, training, research, and partnerships across multiple sites. | Hospitals and Health Care | 🇫🇷 Lorient | 478 |  |
| 3 | [Service Départemental d'Incendie et de Secours du Morbihan (SDIS56)](https://www.tamtam.ai/c/service-departemental-d-incendie-et-de-secours-du-morbihan-sdis56) (sdis56.fr)<br>The Departmental Fire and Rescue Service operates 65 fire stations in three districts, managing over 45,000 emergency interventions annually | Public Safety | 🇫🇷 Vannes | 401 |  |
| 4 | [EPSM Morbihan](https://www.tamtam.ai/c/epsm-morbihan) (epsm-morbihan.fr)<br>Provides psychiatric care for children, adolescents, adults, and elderly, managing health and social structures across eastern Morbihan with a focus on specialized services and partnerships. | Hospitals and Health Care | 🇫🇷 Saint-Avé | 360 | 1886 |
| 5 | [Académie militaire de Saint-Cyr Coëtquidan](https://www.tamtam.ai/c/academie-militaire-de-saint-cyr-coetquidan) (terre.defense.gouv.fr)<br>Initial training for army officers, preparing them for operational roles and a full career, emphasizing leadership, resilience, and adaptability to complex challenges. | Higher Education | 🇫🇷 Guer | 264 |  |
| 6 | [morbihan habitat](https://www.tamtam.ai/c/morbihan-habitat) (morbihan-habitat.fr)<br>Construction, renovation, and management of affordable social housing, specialized residences, and community facilities supporting local territorial development. | Housing and Community Development | 🇫🇷 Vannes | 218 | 2023 |
| 7 | [Golfe du Morbihan - Vannes agglomération](https://www.tamtam.ai/c/golfe-du-morbihan-vannes-agglomeration) (golfedumorbihan-vannesagglomeration.bzh)<br>Coordination and management of public services and development across 34 municipalities formed by merging three local communities. | Government Administration | 🇫🇷 Vannes | 207 | 2017 |
| 8 | [Brocéliande Atlantique](https://www.tamtam.ai/c/broceliande-atlantique) (ch-bretagne-atlantique.fr)<br>A healthcare group serving 400,000 residents with 6,000 health professionals, 400 doctors, 3,700 beds, and 93,000 ER visits annually | Hospitals and Health Care | 🇫🇷 Vannes | 205 |  |
| 9 | [Assurance Maladie du Morbihan (Cpam)](https://www.tamtam.ai/c/assurance-maladie-du-morbihan-cpam) (ameli.fr)<br>Working at this company means joining a team committed to protecting the health of over 60 million insured individuals through various projects | Government Administration | 🇫🇷 Vannes | 202 | 1945 |
| 10 | [Groupe Hospitalier Centre Bretagne](https://www.tamtam.ai/c/groupe-hospitalier-centre-bretagne) (ch-centre-bretagne.fr)<br>Public healthcare institution offering modern medical, surgical, rehabilitation, and accommodation services across multiple sites for 142,000 residents. | Hospitals and Health Care | 🇫🇷 Noyal-Pontivy | 181 |  |
| 11 | [IUT de Vannes](https://www.tamtam.ai/c/iut-de-vannes) (iutvannes.fr)<br>The company provides training in Commerce, Management, IT, and Data Science for quick integration into the job market through various programs | Higher Education | 🇫🇷 Vannes | 159 | 1970 |
| 12 | [Auray Quiberon Terre Atlantique](https://www.tamtam.ai/c/auray-quiberon-terre-atlantique) (auray-quiberon.fr)<br>Support sustainable development of urban, rural, and coastal areas, economic growth, tourism, environment, housing, mobility, culture, and social services. | Government Administration | 🇫🇷 Auray | 150 | 2014 |
| 13 | [GRETA-CFA Bretagne Sud](https://www.tamtam.ai/c/greta-cfa-bretagne-sud) (bit.ly)<br>A public network in Brittany offering ongoing education for adults by pooling resources from over 260 schools, providing adult education and apprenticeship programs | Professional Training and Coaching | 🇫🇷 Lorient | 137 | 1974 |
| 14 | [ENSIBS](https://www.tamtam.ai/c/ensibs) (www-ensibs.univ-ubs.fr)<br>Offers engineering degrees in various specialties, including cybersecurity and energy, with hands-on training on two campuses near the sea. | Higher Education | 🇫🇷 Lorient | 126 | 2007 |
| 15 | [IUT de Lorient - Pontivy](https://www.tamtam.ai/c/iut-de-lorient-pontivy) (www-iutlorient.univ-ubs.fr)<br>This company focuses on the skills of graduates, students, and staff at the IUT, while also highlighting innovations, ongoing recruitments, and company news | Higher Education | 🇫🇷 Lorient | 123 | 1975 |
| 16 | [CCI du Morbihan](https://www.tamtam.ai/c/cci-du-morbihan) (bretagne.cci.fr)<br>Provides expert advice and support to entrepreneurs in commerce, industry, and services for creating, starting, improving, buying, and selling businesses. | Government Administration | 🇫🇷 Lorient | 110 |  |
| 17 | [IRDL - UMR CNRS 6027/UBS/ENSTA/INP UBO/UBO](https://www.tamtam.ai/c/irdl-umr-cnrs-6027-ubs-ensta-inp-ubo-ubo) (irdl.fr)<br>Leading marine mechanical systems research institute in France and Europe, specializing in material mechanics and structures, supporting maritime economy in Brittany | Think Tanks | 🇫🇷 Lorient | 104 | 2016 |
| 18 | [Ploërmel Communauté](https://www.tamtam.ai/c/ploermel-communaute) (ploermelcommunaute.bzh)<br>A dynamic Breton community of 30 communes offering natural beauty, cultural heritage, diverse economy, employment opportunities, and vibrant local events. | Government Administration | 🇫🇷 Ploërmel | 102 | 2017 |
| 19 | [Compagnie des Ports du Morbihan](https://www.tamtam.ai/c/compagnie-des-ports-du-morbihan) (compagniedesportsdumorbihan.com)<br>A company managing department-owned marinas and heritage sites to meet the needs of the Morbihan region, established by the Department of Morbihan in 2012 | Recreational Facilities | 🇫🇷 Vannes | 97 |  |
| 20 | [Chambre de Métiers et de l'Artisanat du Morbihan](https://www.tamtam.ai/c/chambre-de-metiers-et-de-l-artisanat-du-morbihan) (cma56.bzh)<br>The company provides support and guidance to artisans, offering training, assistance with business creation, and representation in front of public authorities | Government Relations Services | 🇫🇷 Vannes | 93 | 1942 |
| 21 | [Centre Morbihan Communauté](https://www.tamtam.ai/c/centre-morbihan-communaute) (centremorbihancommunaute.bzh)<br>A community of 12 municipalities with 28,000 inhabitants at a strategic location intersecting Vannes, Lorient, and Pontivy in France | Government Administration | 🇫🇷 Locmine | 64 | 2017 |
| 22 | [COMMUNAUTE DE COMMUNES ARC SUD BRETAGNE](https://www.tamtam.ai/c/communaute-de-communes-arc-sud-bretagne) (arc-sud-bretagne.fr)<br>Government administration company in Bretagne, France managing the community and services of the ARC SUD region | Government Administration | 🇫🇷 Muzillac | 30 | 2011 |
| 23 | [ALOEN](https://www.tamtam.ai/c/aloen) (aloen.fr)<br>A company founded in 2005 to promote energy transition, advising citizens, networking local actors, providing expertise to support communities, and developing resources for residents | Environmental Services | 🇫🇷 Lorient | 28 | 2005 |
| 24 | [RESIDENCES MAREVA](https://www.tamtam.ai/c/residences-mareva) (residences-mareva.fr)<br>A public autonomous organization operating four EHPAD facilities focused on personalized care and vibrant activities in Vannes and Meucon, Morbihan | Hospitals and Health Care | 🇫🇷 Vannes | 28 | 1992 |
| 25 | [Morbihan Tourisme](https://www.tamtam.ai/c/morbihan-tourisme) (morbihan.com)<br>Association for tourism development, engineering, and communication strategies in Morbihan. Also, promotion of image, notoriety, and global attractiveness, domestically and internationally. | Travel Arrangements | 🇫🇷 Vannes | 24 |  |
| 26 | [Lorient Bretagne Sud Tourisme](https://www.tamtam.ai/c/lorient-bretagne-sud-tourisme) (lorientbretagnesudtourisme.fr)<br>The company offers tourist information in 6 locations, remote assistance, ticket services, gift box sales, and customized tour packages for groups | Travel Arrangements | 🇫🇷 Lorient | 19 |  |
| 27 | [Théâtre de Lorient - Centre dramatique national](https://www.tamtam.ai/c/theatre-de-lorient-centre-dramatique-national) (theatredelorient.fr)<br>Company specializing in theatre, dance, music, and circus arts under the direction of Simon Delétang, known by the hashtag TDL2324 | Performing Arts | 🇫🇷 Lorient | 17 |  |
| 28 | [Société Publique Locale Bois Energie Renouvelable](https://www.tamtam.ai/c/societe-publique-locale-bois-energie-renouvelable) (splber.fr)<br>A renewable energy company established in 2018, serving Lorient and Quimperlé regions in France with production and operation of renewable energy facilities | Renewable Energy Power Generation | 🇫🇷 Lorient | 16 | 2018 |
| 29 | [Aéroport de Lorient Bretagne Sud](https://www.tamtam.ai/c/aeroport-de-lorient-bretagne-sud) (lorient.aeroport.fr)<br>Operating the Lorient Lann-Bihoué Airport, collaborating with local stakeholders to make it the natural gateway to southern Brittany for economic and tourism needs | Aviation and Aerospace Component Manufacturing | 🇫🇷 Ploemeur | 2 |  |

## 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 Morbihan department

- [The largest companies in the Morbihan department](https://www.tamtam.ai/l/largest-companies-morbihan) (538)
- [Companies with in-house R&D in the Morbihan department](https://www.tamtam.ai/l/r-and-d-companies-morbihan) (73)
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- [Distributors and wholesalers in the Morbihan department](https://www.tamtam.ai/l/distributors-and-wholesalers-morbihan) (26)

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Source: https://www.tamtam.ai/l/public-sector-organisations-morbihan