The Finistère department hosts a diverse range of companies engaged in in-house research and development, predominantly mid-sized firms. Key sectors include healthcare, with institutions like CHU de Brest and Centre hospitalier de Cornouaille, and industrial manufacturing, represented by companies such as KOHLER Power Systems EMEA, a designer of distributed energy solutions, and Sermeta, a manufacturer of heat exchangers. Shipbuilding is also present with PIRIOU, while Blue Solutions specializes in solid-state batteries. Other sectors include construction (Trecobat Groupe) and food industry equipment (GUELT).
The geographical distribution of these companies shows a concentration around major urban centers. Brest, Quimper, and Concarneau are prominent headquarters locations, reflecting the regional economic hubs. This distribution indicates a localized innovation ecosystem, with a mix of established industrial players and specialized technology firms contributing to the region's R&D landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CHU de Brestchu-brest.fr
Leading healthcare institution in western Brittany with extensive medical, surgical, oncology, psychiatric, geriatric, pediatric, and gynecological services across multiple sites. |
2,597 | |||
| 2 |
IPCipc-sa.com
Develops innovative biotechnological hygiene and maintenance solutions using living resources to protect infrastructure, people, and the environment sustainably. |
1,401 | |||
| 3 |
Centre hospitalier de Cornouaille Quimper-Concarneauch-cornouaille.fr
Regional hospital network providing surgery, medicine, obstetrics, geriatrics, cancer care, rehabilitation, and coordinated patient care with advanced medical technology. |
478 | |||
| 4 |
KOHLER Power Systems EMEApowersystems.rehlko.com
Designs, manufactures, and integrates distributed energy solutions, including engines, generators, UPS systems, and microgrid controls for diverse industrial, residential, and commercial applications. |
420 | |||
| 5 |
PIRIOUpiriou.com
Shipbuilding, repair, naval engineering, and services for vessels up to 120m, delivered worldwide to private and public shipowners. |
408 | |||
| 6 |
Sermetasermeta.com
A leading manufacturer of stainless steel heat exchangers for gas condensing boilers, focusing on energy efficiency and reducing pollutant emissions |
331 | |||
| 7 |
Trecobat Groupetrecobat-groupe.fr
A leader in energy-efficient housing, with over 40 years of experience, known for innovative technological advancements and award-winning construction projects |
325 | |||
| 8 |
Blue Solutionsblue-solutions.com
Global leader manufacturing cobalt-free solid-state batteries for electric buses and aircraft with industrial-scale production across France and Canada focusing on high energy density. |
316 | |||
| 9 |
ETT - ENERGIE TRANSFERT THERMIQUEett-hvac.com
Specializes in air conditioning, ventilation, and heating systems for various sectors, promoting responsible energy use and efficiency. |
289 | |||
| 10 | 231 | ||||
| 11 | 201 | ||||
| 12 |
Entech smart energiesentech-se.com
Develops solar power, energy storage, and electricity conversion solutions managed by smart software for renewable energy integration. Designs, installs, and finances these projects globally. |
189 | |||
| 13 |
TECHNATUREtech-nature.com
A global leader in manufacturing cosmetic powders, peel-off beauty masks, and skincare products with expertise in alginate gelling process Offering full-service solutions Made in France |
145 | |||
| 14 |
CAPICcapic-fr.com
A family-owned company founded in 1955 in France, manufacturing kitchen devices for catering, institutions, and food processing industries with a focus on quality and performance |
143 | |||
| 15 | 142 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 | 137 | ||||
| 17 | 134 | ||||
| 18 |
Novatech Technologiesnovatech-groupe.com
Design, manufacture, and integrate electronic solutions and products, supporting innovative companies from project conception to finished product delivery. |
132 | |||
| 19 |
KERHISkerhis.com
Specialized in developing and integrating business IT solutions for cooperatives, traders, and agro-industrial companies to enhance efficiency and customer service |
131 | |||
| 20 |
Station Biologique de Roscoffsb-roscoff.fr
A French marine biology and oceanography research and teaching center founded in 1872, affiliated with Sorbonne University and the National Centre for Scientific Research |
124 | |||
| 21 |
Sanithermsanitherm-chauffage.bzh
A company specializing in heating, plumbing, ventilation, air conditioning, and thermal engineering services They provide design, installation, and maintenance for various clients |
115 | |||
| 22 |
Meunier SAmeuniersa.com
This company specializes in project management, mechanical design, automation, robotic solutions, assembly, testing, on-site technical assistance, training, and commissioning in France and Europe |
104 | |||
| 23 |
Bluebusbluebus.fr
French manufacturer of six and twelve meter electric buses providing clean and silent public transport solutions for urban and suburban environmental challenges. |
95 | |||
| 24 |
ASSIA, plateforme Santé & Assuranceassia.fr
French group providing innovative, secure health and insurance products via a modular SaaS platform for social protection actors. |
87 | |||
| 25 |
CELTECHceltech.fr
A French company near Quimper specializing in filling technologies for food processors and industrial craftsmen, offering tailored solutions and demo machines for testing products |
75 | |||
| 26 |
MCA Processmca-process.fr
Design and manufacture of automated food processing systems including raw product handling, robotic retort loading, and end-of-line automation for various food sectors. |
72 | |||
| 27 |
AGRIMERagrimer.com
Develops marine ingredient-based products for cosmetics, agriculture, dietetics, from harvesting and processing algae to manufacturing and packaging, with patented innovations. |
69 | |||
| 28 | 68 | ||||
| 29 |
ActuaPlastactuaplast.fr
Expertise in technical parts design, prototyping, and manufacturing through injection and extrusion blow molding for automotive OEMs including air filters and hoses. |
68 | |||
| 30 |
TUFFIGO RAPIDEXtuffigorapidex.com
Design and manufacture of customized ventilation and feeding equipment for various animal husbandry buildings, focusing on innovation and connected farm solutions. |
64 | |||
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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 12, 2026.
More company lists in the Finistère department
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- Manufacturers in the Finistère department 78
- Multinational companies in the Finistère department 50
- Food and Beverage Manufacturing companies in the Finistère department 45
- Family-owned companies in the Finistère department 45
- Food and beverage companies in the Finistère department 40
- Hardware manufacturers in the Finistère department 35
- Public sector organisations in the Finistère department 35
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- Critical infrastructure operators in the Finistère department 25
The same list elsewhere in France
- Companies with in-house R&D in France 8,749
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- Companies with in-house R&D in Nouvelle-Aquitaine 566
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- Companies with in-house R&D in the Rhône department 509
- Companies with in-house R&D in Pays de la Loire 480
- Companies with in-house R&D in Hauts-de-France 410
- Companies with in-house R&D in Brittany 366
- Companies with in-house R&D in the Haute-Garonne department 323
- Companies with in-house R&D in the Bouches-du-Rhône department 320
- Companies with in-house R&D in the Isère department 304
- Companies with in-house R&D in Bourgogne-Franche-Comté 261
- Companies with in-house R&D in the Nord department 237
- Companies with in-house R&D in Normandy 227
- Companies with in-house R&D in the Gironde department 225
- Companies with in-house R&D in the Loire-Atlantique department 207
- Companies with in-house R&D in the Essonne department 198
- Companies with in-house R&D in Centre-Val de Loire 195
- Companies with in-house R&D in Paris 1,249
- Companies with in-house R&D in Lyon 192