# Top 25 critical infrastructure operators in the Finistère department

Tamtam tracks 25 critical infrastructure operators headquartered in the Finistère department. This list ranks all of them by number of employees on LinkedIn, led by Crédit Mutuel Arkéa, CHU de Brest and Brittany Ferries. Their median headcount is 128. Half of them were founded in 1980 or later. The most common headquarters are Brest (12), Quimper (5) and Guipavas (2).

The Finistère department hosts a concentration of critical infrastructure operators, primarily in the banking and healthcare sectors. Companies like Crédit Mutuel Arkéa, a cooperative banking group, and CHU de Brest, a leading healthcare institution, are among the largest employers. Brittany Ferries provides maritime transportation, while Brest Métropole is involved in government administration. Crédit Mutuel de Bretagne and Crédit Agricole du Finistère are other significant financial service providers, and Fondation ILDYS offers healthcare and social support.

A notable pattern is the prevalence of financial services and healthcare organizations. Many of these entities, such as Crédit Mutuel Arkéa and CHU de Brest, are substantial in size, indicating a regional focus on established institutions supporting essential services.

🇫🇷 Finistère · 25 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Crédit Mutuel Arkéa](https://www.tamtam.ai/c/credit-mutuel-arkea) (cm-arkea.com)<br>Cooperative banking group with specialized subsidiaries in banking, finance, insurance, and real estate, serving 3.2 million members and clients across 19 French regions. | Banking | 🇫🇷 Le Relecq-Kerhuon | 8,676 |  |
| 2 | [CHU de Brest](https://www.tamtam.ai/c/chu-de-brest) (chu-brest.fr)<br>Leading healthcare institution in western Brittany with extensive medical, surgical, oncology, psychiatric, geriatric, pediatric, and gynecological services across multiple sites. | Hospitals and Health Care | 🇫🇷 Brest | 2,597 |  |
| 3 | [Brittany Ferries](https://www.tamtam.ai/c/brittany-ferries) (brittany-ferries.com)<br>The company reveals stunning coastal destinations across Western Europe, highlighting the beauty of the region's shorelines | Maritime Transportation | 🇫🇷 Roscoff | 1,559 | 1972 |
| 4 | [Brest Métropole](https://www.tamtam.ai/c/brest-metropole) (brest.fr)<br>Brest métropole océane is a voluntary urban community in western Brittany, anchoring a region with 90 towns and 300,000 residents | Government Administration | 🇫🇷 Brest | 1,072 | 1973 |
| 5 | [Crédit Mutuel de Bretagne](https://www.tamtam.ai/c/credit-mutuel-de-bretagne) (cmb.fr)<br>Provides comprehensive banking, financial, insurance products with strong local involvement, supporting individuals, businesses, and communities in Brittany region. | Financial Services | 🇫🇷 Le Relecq-Kerhuon | 1,062 | 1979 |
| 6 | [Crédit Agricole du Finistère](https://www.tamtam.ai/c/credit-agricole-du-finistere) (credit-agricole.fr)<br>Mutualist cooperative bank focusing on local economic development, supporting businesses, investing in excellence, and prioritizing local financing solutions. | Banking | 🇫🇷 Quimper | 964 | 1907 |
| 7 | [Centre hospitalier de Cornouaille Quimper-Concarneau](https://www.tamtam.ai/c/centre-hospitalier-de-cornouaille-quimper-concarneau) (ch-cornouaille.fr)<br>Regional hospital network providing surgery, medicine, obstetrics, geriatrics, cancer care, rehabilitation, and coordinated patient care with advanced medical technology. | Hospitals and Health Care | 🇫🇷 Quimper | 478 |  |
| 8 | [Fondation ILDYS](https://www.tamtam.ai/c/fondation-ildys) (ildys.org)<br>Nonprofit foundation providing healthcare, rehabilitation, disability support, child protection, and elderly care with strong regional presence and social values. | Hospitals and Health Care | 🇫🇷 Brest | 354 | 1901 |
| 9 | [CENTRE HOSPITALIER DES PAYS DE MORLAIX](https://www.tamtam.ai/c/centre-hospitalier-des-pays-de-morlaix) (ch-morlaix.fr)<br>Comprehensive medical, surgical, obstetric, psychiatric, and rehabilitation services with specialized oncology, geriatrics, maternity, pediatrics, and medico-social care across multiple locations. | Hospitals and Health Care | 🇫🇷 Morlaix | 332 | 1995 |
| 10 | [Suravenir](https://www.tamtam.ai/c/suravenir) (suravenir.fr)<br>Established in 1984, a leading provider in France offering life and personal protection insurance, specializing in life insurance, personal protection policies, and retirement savings plans | Insurance | 🇫🇷 Brest | 298 | 1984 |
| 11 | [EPSM du Finistère Sud](https://www.tamtam.ai/c/epsm-du-finistere-sud) (epsm-quimper.fr)<br>Public mental health facility located in Quimper, providing mental health services and support to individuals in need | Hospitals and Health Care | 🇫🇷 Quimper | 258 | 1959 |
| 12 | [CCI Finistère](https://www.tamtam.ai/c/cci-finistere) (bretagne.cci.fr)<br>Represent businesses, provide development support, conduct economic studies, offer professional training, and manage key public infrastructure like ports and airports. | Government Administration | 🇫🇷 Brest | 139 | 2016 |
| 13 | [Centre Hospitalier de Douarnenez](https://www.tamtam.ai/c/centre-hospitalier-de-douarnenez-68814037) (ch-douarnenez.bzh)<br>A public health facility in Douarnenez, part of a regional hospital network, collaborating with other hospitals to provide quality healthcare services | Hospitals and Health Care | 🇫🇷 Douarnenez | 128 |  |
| 14 | [Clinique Pasteur-Lanroze](https://www.tamtam.ai/c/clinique-pasteur-lanroze) (cliniquepasteurlanroze.vivalto-sante.com)<br>A hospital & health care company located in Brest, France, providing medical services and care to patients in the Brittany region | Hospitals and Health Care | 🇫🇷 Brest | 111 | 2006 |
| 15 | [Hôpital Régional d'Instruction des Armées Clermont-Tonnerre](https://www.tamtam.ai/c/hopital-regional-d-instruction-des-armees-clermont-tonnerre) (hiaclermonttonnerre.sante.defense.gouv.fr)<br>Offers comprehensive medical services to military and civilian patients, focusing on infectious diseases, emergency care, and specialized health services. | Hospitals and Health Care | 🇫🇷 Brest | 106 |  |
| 16 | [Arkéa Banque Privée](https://www.tamtam.ai/c/arkea-banque-privee) (arkeabanqueprivee.fr)<br>Arkéa Banque Privée is a regional bank within a national group, specializing in wealth management with over €35 billion in assets under management | Banking | 🇫🇷 Brest | 92 | 2013 |
| 17 | [Clinique Mutualiste de Bretagne Occidentale](https://www.tamtam.ai/c/clinique-mutualiste-de-bretagne-occidentale) (clinique-quimper.fr)<br>A healthcare facility in Western Brittany with 180 beds, 30+ specialties, imaging services, surgical facilities, and emphasis on personalized care and medical advancements | Hospitals and Health Care | 🇫🇷 Quimper | 83 | 2022 |
| 18 | [Bibus Brest](https://www.tamtam.ai/c/bibus-brest) (bibus.fr)<br>Transportation company providing bus, tramway, cable cars, bike services, and on-demand transport in Brest metropolitan area, including services for people with reduced mobility | Urban Transit Services | 🇫🇷 Brest | 81 | 1986 |
| 19 | [Tribord](https://www.tamtam.ai/c/tribord-brest) (e-tribord.com)<br>An insertion company specializing in environmental sector and waste management, operating in various territories in Brittany, Loire-Atlantique, and Manche | Environmental Services | 🇫🇷 Brest | 77 | 1990 |
| 20 | [Aéroport Brest Bretagne](https://www.tamtam.ai/c/aeroport-brest-bretagne) (brest.aeroport.bzh)<br>An airport company managing Brest Bretagne and Quimper Bretagne airports in Brittany, providing flights to various destinations in France and Europe | Airlines and Aviation | 🇫🇷 Guipavas | 71 |  |
| 21 | [OCELORN le réseau bus&cars](https://www.tamtam.ai/c/ocelorn-le-reseau-bus-and-cars) (ocelorn.com)<br>A network of independent transportation companies offering services for communities and businesses in tourism, regular lines, school transport, urban networks, and custom travel packages | Truck Transportation | 🇫🇷 Landivisiau | 68 | 1968 |
| 22 | [CHP Brest](https://www.tamtam.ai/c/chp-brest) (elsan.care)<br>A private healthcare facility with 474 beds, offering advanced surgical, oncology, obstetrics, and emergency medical services in the region | Hospitals and Health Care | 🇫🇷 Brest | 56 |  |
| 23 | [SDEF - Syndicat départemental d'Energie et d'Equipement du Finistère](https://www.tamtam.ai/c/sdef-syndicat-departemental-d-energie-et-d-equipement-du-finistere) (sdef.fr)<br>The company is a key player in the energy sector, managing public electricity distribution and promoting renewable energy in Finistère through various projects and services | Environmental Services | 🇫🇷 Quimper | 47 | 1948 |
| 24 | [CLINIQUE PEN AN DALAR](https://www.tamtam.ai/c/clinique-pen-an-dalar) (clinique-pen-an-dalar.ramsaysante.fr)<br>A medical practice company based in Bretagne, France, focusing on providing healthcare services at 147 Rue de Paris, Guipavas | Hospitals and Health Care | 🇫🇷 Guipavas | 39 | 1980 |
| 25 | [AMB - Agence Maritime Brestoise](https://www.tamtam.ai/c/amb-agence-maritime-brestoise) (amb-mk.com)<br>Handling, consignment, transit, port logistics, customs solutions, and transport services for maritime operations along the French Atlantic coast. | Transportation, Logistics, Supply Chain and Storage | 🇫🇷 Brest | 37 |  |

## 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 Finistère department

- [The largest companies in the Finistère department](https://www.tamtam.ai/l/largest-companies-finistere) (571)
- [Retail chains in the Finistère department](https://www.tamtam.ai/l/retail-chains-finistere) (90)
- [Manufacturers in the Finistère department](https://www.tamtam.ai/l/manufacturers-finistere) (78)
- [Companies with in-house R&D in the Finistère department](https://www.tamtam.ai/l/r-and-d-companies-finistere) (71)
- [Multinational companies in the Finistère department](https://www.tamtam.ai/l/multinational-companies-finistere) (50)
- [Food and Beverage Manufacturing companies in the Finistère department](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-finistere) (45)
- [Family-owned companies in the Finistère department](https://www.tamtam.ai/l/family-owned-companies-finistere) (45)
- [Food and beverage companies in the Finistère department](https://www.tamtam.ai/l/food-and-beverage-companies-finistere) (40)
- [Hardware manufacturers in the Finistère department](https://www.tamtam.ai/l/hardware-companies-finistere) (35)
- [Public sector organisations in the Finistère department](https://www.tamtam.ai/l/public-sector-organisations-finistere) (35)
- [Consumer goods companies in the Finistère department](https://www.tamtam.ai/l/consumer-goods-companies-finistere) (31)
- [Distributors and wholesalers in the Finistère department](https://www.tamtam.ai/l/distributors-and-wholesalers-finistere) (31)
- [Agriculture companies in the Finistère department](https://www.tamtam.ai/l/agriculture-companies-finistere) (29)

## The same list elsewhere in France

- [Critical infrastructure operators in France](https://www.tamtam.ai/l/critical-infrastructure-operators-france) (2,721)
- [Critical infrastructure operators in Île-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-ile-de-france) (780)
- [Critical infrastructure operators in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/critical-infrastructure-operators-auvergne-rhone-alpes) (299)
- [Critical infrastructure operators in Grand Est](https://www.tamtam.ai/l/critical-infrastructure-operators-grand-est) (257)
- [Critical infrastructure operators in Occitanie](https://www.tamtam.ai/l/critical-infrastructure-operators-occitanie) (216)
- [Critical infrastructure operators in Nouvelle-Aquitaine](https://www.tamtam.ai/l/critical-infrastructure-operators-nouvelle-aquitaine) (209)
- [Critical infrastructure operators in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/critical-infrastructure-operators-provence-alpes-cote-dazur) (200)
- [Critical infrastructure operators in Hauts-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-france) (174)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [Critical infrastructure operators in Pays de la Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-pays-de-la-loire) (127)
- [Critical infrastructure operators in Brittany](https://www.tamtam.ai/l/critical-infrastructure-operators-brittany) (120)
- [Critical infrastructure operators in Normandy](https://www.tamtam.ai/l/critical-infrastructure-operators-normandy) (103)
- [Critical infrastructure operators in the Bouches-du-Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-bouches-du-rhone) (98)
- [Critical infrastructure operators in the Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-rhone) (94)
- [Critical infrastructure operators in Centre-Val de Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-centre-val-de-loire) (87)
- [Critical infrastructure operators in the Nord department](https://www.tamtam.ai/l/critical-infrastructure-operators-nord) (87)
- [Critical infrastructure operators in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/critical-infrastructure-operators-bourgogne-franche-comte) (76)
- [Critical infrastructure operators in the Haute-Garonne department](https://www.tamtam.ai/l/critical-infrastructure-operators-haute-garonne) (64)
- [Critical infrastructure operators in the Gironde department](https://www.tamtam.ai/l/critical-infrastructure-operators-gironde) (63)
- [Critical infrastructure operators in the Loire-Atlantique department](https://www.tamtam.ai/l/critical-infrastructure-operators-loire-atlantique) (59)
- [Critical infrastructure operators in the Hérault department](https://www.tamtam.ai/l/critical-infrastructure-operators-herault) (57)
- [Critical infrastructure operators in the Seine-Saint-Denis department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-saint-denis) (53)
- [Critical infrastructure operators in the Seine-Maritime department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-maritime) (46)
- [Critical infrastructure operators in Paris](https://www.tamtam.ai/l/critical-infrastructure-operators-paris) (331)

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Source: https://www.tamtam.ai/l/critical-infrastructure-operators-finistere