These companies are the largest firms with in-house research and development in Brittany. They represent a mix of industries, including manufacturing, healthcare, IT, and higher education. Noteworthy examples include SCHMIDT GROUPE, a furniture manufacturer; CHU de Rennes, a large public hospital; Cooperl, an agri-food cooperative specializing in pork production; and IMT Atlantique, an engineering school focused on digital and environmental transitions. Many of these organizations play a significant role in regional development and public services.
The data shows a strong presence of food and beverage manufacturing companies, such as Cooperl, Solina, and Cite marine, indicating a regional specialization in this sector. Additionally, several major public institutions like Université de Rennes I and CHU de Brest highlight the importance of research, education, and healthcare in Brittany's R&D landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 150,393 | ||||
| 2 |
SCHMIDT GROUPEgroupe.schmidt
Manufactures, designs, distributes inspiring, sustainable living, working spaces under Schmidt, Cuisinella, ID Pro brands. Certified B Corp, people-oriented values, quality, excellence. |
5,148 | |||
| 3 |
Université de Rennes Iuniv-rennes.fr
Multidisciplinary university focusing on dynamic research, lifelong learning, societal challenges, and regional socio-economic and cultural development through partnerships. |
4,002 | |||
| 4 |
CHU de Renneschu-rennes.fr
Large French public hospital offering extensive medical, surgical, and obstetrical services, advanced diagnostics, research, and medical training to the population. |
3,470 | |||
| 5 |
CS GROUPcs-soprasteria.com
Designs, builds, deploys, and maintains critical systems with innovative solutions and products, ensuring operational efficiency and security for client missions. |
2,968 | |||
| 6 |
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 | |||
| 7 |
Cooperlcooperl.com
A French agricultural and agri-food cooperative, specializing in pork production from farm to plate, including animal nutrition, processing, and distribution. |
2,009 | |||
| 8 |
Solinasolina.com
Designing customized food solutions with enhanced taste, nutrition, and functionality for food industry, service, butchery, and nutrition sectors worldwide. |
1,537 | |||
| 9 |
IPCipc-sa.com
Develops innovative biotechnological hygiene and maintenance solutions using living resources to protect infrastructure, people, and the environment sustainably. |
1,401 | |||
| 10 |
IMT Atlantiqueimt-atlantique.fr
A prestigious engineering school specializing in digital, energy, and environmental transition, offering diverse programs and strong partnerships with businesses |
966 | |||
| 11 |
Kersia, inventing a food safe worldkersia-group.com
Global biosecurity and food safety, preventing disease and contamination in animals and humans across the food supply chain, including healthcare. |
797 | |||
| 12 |
Nextlanenextlane.com
Leading automotive business ecosystem. Providing cutting-edge software solutions. Empowering dealers and manufacturers. Driving business growth. Elevating customer experience. |
686 | |||
| 13 |
TIMAC AGRO Francetimacagro.fr
Inspired by nature, improves natural resources, plant and animal nutrition for efficient, sustainable agriculture, enhancing agricultural performance. |
557 | |||
| 14 |
PANPHARMApanpharma.eu
Develops, produces, and commercializes generic injectable medicines for hospitals and clinics in France and over 75 countries, specializing in antibiotics, anesthetics, and analgesics. |
534 | |||
| 15 |
Cite marinecite-marine.fr
Leading French company specializing in fresh and frozen seafood, prepared vegetables, and vegetarian dishes with sustainable, ethical production and quality management. |
530 | |||
| 16 |
DIANAsymrise.com
A global supplier of fragrances, flavors, food, nutrition, and cosmetic ingredients, acquired by Symrise Group For updates, follow Symrise AG page |
517 | |||
| 17 |
Sanders Nutrition animalesanders.fr
French leader in animal nutrition providing tailored solutions to livestock production sectors with a focus on value, sustainability, and local support |
504 | |||
| 18 |
SIB [numérique, santé et secteur public]sib.fr
Innovative cooperative in digital health and public sector, serving 620+ institutions in modernizing their IT systems with a wide range of services and expertise |
499 | |||
| 19 |
LUMIBIRD : the specialist in laser technologieslumibird.com
Company designs, manufactures, and markets high-performance lasers for industrial, scientific, medical, and defense markets globally, leveraging 50 years of experience in laser technologies. |
497 | |||
| 20 |
INSA Rennesinsa-rennes.nous-recrutons.fr
Provides five-year post-baccalaureate engineering education with strong research in information technologies and materials science in Brittany, France. |
483 | |||
| 21 |
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 | |||
| 22 |
GROUPE HOSPITALIER BRETAGNE SUDghbs.bzh
Public healthcare institution in South Brittany offering extensive medical care, training, research, and partnerships across multiple sites. |
478 | |||
| 23 |
Le Gouessantlegouessant.com
Cooperative group specializing in animal nutrition, crop management, and marketing of animal and plant products, with a focus on sustainable agriculture and responsible production ethics. |
473 | |||
| 24 |
GYS France (Headquarters)gys.fr
Designs, manufactures, sells arc welding machines, car battery chargers, and collision repair equipment globally, operating across France, Germany, UK, Italy, Spain, China. |
466 | |||
| 25 |
EMOemo-france.com
Global provider of customized water and sludge treatment solutions for wastewater, drinking water, and industrial effluents with a dedicated in-house laboratory and worldwide distribution network |
463 | |||
| 26 |
STALAVENeuralis.fr
A company specializing in crafting charcuterie and fresh deli products for independent local retailers, offering personalized service, weekly deliveries, and business development support |
461 | |||
| 27 |
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 | |||
| 28 |
M-extendm-extend.com
Family-run group since 1951, specializing in agricultural handling solutions Integrated design to production process, emphasis on innovation, sustainability, and international growth |
415 | |||
| 29 |
PIRIOUpiriou.com
Shipbuilding, repair, naval engineering, and services for vessels up to 120m, delivered worldwide to private and public shipowners. |
408 | |||
| 30 | 386 | ||||
| 31 |
SANDEN MANUFACTURING EUROPEsanden-europe.fr
Designs, manufactures, and validates automotive air conditioning compressors and thermal comfort systems for European car manufacturers and global markets. |
372 | |||
| 32 |
CCPA GROUPccpa.com
Develops, manufactures, and distributes animal nutrition and health products including premixes and feed additives, offering zootechnical support to feed manufacturers globally. |
367 | |||
| 33 |
Hubbardhubbardbreeders.com
Company supplies day-old grandparent and parent stock chicks globally to produce chicken meat, offering conventional and premium broiler products. |
366 | |||
| 34 |
Guillemot Corporationguillemot.com
Design and manufacture interactive entertainment hardware and accessories under Hercules and Thrustmaster brands, distributing products worldwide with focus on growth markets. |
349 | |||
| 35 |
Sermetasermeta.com
A leading manufacturer of stainless steel heat exchangers for gas condensing boilers, focusing on energy efficiency and reducing pollutant emissions |
331 | |||
| 36 |
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 | |||
| 37 |
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 | |||
| 38 |
Groupe Hospitalier Rance-Emeraudegh-re.fr
Healthcare network including hospitals in Saint-Malo, Dinan, and Cancale, providing emergency, surgery, medicine, obstetrics, and elderly care services. |
316 | |||
| 39 |
TIMAC AGRO Internationaltimacagro.com
Provides precise, innovative, complete nutritional solutions for soils, plants, and animals, supporting farmers globally for over 65 years. |
314 | |||
| 40 |
ETT - ENERGIE TRANSFERT THERMIQUEett-hvac.com
Specializes in air conditioning, ventilation, and heating systems for various sectors, promoting responsible energy use and efficiency. |
289 | |||
| 41 |
Horus Pharmahorus-pharma.com
Develops, patents, markets products for eye and eyelid health, focusing on preservative-free formulations, medical devices, and surgical solutions for ophthalmology. |
275 | |||
| 42 |
Hoppenhoppen.care
Hoppen - Time to Care provides innovative, customizable digital solutions for healthcare facilities, improving patient experience, staff efficiency, and overall performance |
274 | |||
| 43 |
Broadpeakbroadpeak.tv
Broadpeak specializes in designing and manufacturing video delivery components for IPTV, Cable, and OTT services, enhancing quality of experience for subscribers worldwide |
269 | |||
| 44 |
PHOSPHEAphosphea.com
Specializing in phosphorus and calcium solutions for animal nutrition, this company is a global player with a production capacity exceeding 1 Mt |
268 | |||
| 45 |
OETgroupe-ovalt.com
Independent service company specializing in MES, automation, robotics, electrical systems, and weighing with turnkey solutions and maintenance across multiple sites. |
266 | |||
| 46 |
Groupe JEAN FLOC'Hgroupe.jean-floch.com
A leading agri-food group specializing in pork meat processing, offering a wide range of products nationally and internationally through various brands |
251 | |||
| 47 | 247 | ||||
| 48 |
HTL Biotechnologyhtlbiotech.com
Develops and produces pharmaceutical-grade biopolymers like hyaluronic acid and polynucleotides for healthcare, with a focus on innovation and global market expansion. |
243 | |||
| 49 |
Groupe Creativegroupe-creative.fr
Works with clients on IT and digital transformation projects, offering expertise in consulting, creation, development, research, and innovation across various digital domains. |
232 | |||
| 50 | 231 | ||||
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. | |||||
| 51 |
MiXsciencemixscience.eu
Provides innovative nutritional solutions, premixes, and specialized feeds for animal production, enhancing farm technical, sanitary, and economic performances. |
226 | |||
| 52 |
BCF Life Sciencesbcf-lifesciences.com
Extraction and marketing of natural amino acids and derivatives for pharmaceutical, health care, animal, and plant nutrition industries. |
220 | |||
| 53 |
Eclorgroupe-eclor.com
A French beverage company specializing in hard cider, sparkling juices, limonade, beers, and co-packing services using apples from their own trees |
202 | |||
| 54 | 201 | ||||
| 55 |
École Navaleecole-navale.fr
A prestigious French institution responsible for educating officers of the French Navy in various areas such as ships, submarines, and naval aviation |
200 | |||
| 56 | 200 | ||||
| 57 |
Centre Mutualiste de Kerpapecentre-kerpape.fr
A healthcare facility in Ploemeur specializing in functional rehabilitation, physical and rehabilitation medicine for adults and children with various medical conditions |
200 | |||
| 58 |
Cailabscailabs.com
Designs, manufactures, and develops innovative photonic solutions for space, industry (laser machining), telecommunications, and defense sectors, specializing in laser shaping. |
192 | |||
| 59 |
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 | |||
| 60 | 181 | ||||
| 61 |
Terresistimabmagnesium.com
An explorer and major player in the global magnesia industry, supporting customers for over 50 years, providing innovative solutions and reinventing how the world uses magnesia. |
176 | |||
| 62 |
DELPHARM LILLEdelpharm.com
Leading contract drug manufacturer for over 30 years, producing various pharmaceutical forms with high quality, timeliness, and economic balance for global pharmaceutical laboratories. |
173 | |||
| 63 |
BlueKanGobluekango.com
Offers customizable integrated QHSE software solutions with pre-configured applications, document management, and business intelligence, adaptable to diverse industries and organizational processes. |
169 | |||
| 64 |
Sekoiasekoia.com
Building a cyber operations platform for the AI era, unifying threat intelligence, detection, response, and exposure management, making advanced defense accessible. |
165 | |||
| 65 |
WINPHARMA EVERYSwinpharma.com
Development and sale of pharmacy software and hardware, providing installation, training, and support services to pharmacists. |
163 | |||
| 66 |
CANON BRETAGNE Sous-traitance médicale, industrielle et électroniquecanon-bretagne.fr
Provides industrial subcontracting services specializing in medical, industrial, and electronic production with quality and environmental certifications. |
159 | |||
| 67 |
Secure-ICsecure-ic.com
Global provider of cybersecurity solutions for embedded systems & connected objects Offers end-to-end protection technologies, Secure Elements, & evaluation platforms Expanding worldwide with innovative approach |
151 | |||
| 68 |
Siradelsiradel.com
A digital technology company, part of ENGIE Group, specializing in geodata production, 3D modeling, simulation, and AI for sustainable and digital transformation in various sectors |
150 | |||
| 69 |
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 | |||
| 70 |
Louisianesunshine-habitat.com
A leading French company producing over 2000 high-end mobile homes annually, catering to evolving aesthetics and design preferences, offering customized solutions for leisure parks |
145 | |||
| 71 |
ARTEFACTOartefacto-ar.com
Creation of augmented reality virtual reality and 3D visualization solutions through SaaS software and professional production services for architecture urban planning and industry |
143 | |||
| 72 |
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 | |||
| 73 | 142 | ||||
| 74 |
HYDRACHIMhydrachim.fr
A company established in 1995 with 2 production sites, specializing in products for various professionals in agriculture, distribution, and industry, part of a multi-sector group |
142 | |||
| 75 |
Quantel laser by LUMIBIRDquantel-laser.com
A leading specialist in lasers, offering high-performance solid-state, fiber, and diode lasers for industrial, scientific, defense, space, and medical applications worldwide |
137 | |||
| 76 | 137 | ||||
| 77 |
OMNI-PAC GROUPomnipacgroup.com
A European group with 600 employees in France, Germany, and England, focusing on recycling paper to produce eco-friendly packaging and hygiene solutions |
137 | |||
| 78 |
BOSCHAT-LAVEIXboschat-laveix.com
Providing comprehensive solutions in building hardware, tools, and custom-made products for professionals in the construction industry, with expertise in windows, doors, and access control systems |
136 | |||
| 79 |
Eco-Countereco-compteur.com
Specializes in collecting and analyzing pedestrian and bicycle traffic data, offering hardware, software, and professional services worldwide. |
136 | |||
| 80 |
MyLablabo-mylab.fr
A leading European dairy laboratory with advanced technology, offering quality services and innovation to dairy producers, cooperatives, and private industries |
135 | |||
| 81 |
FONDERIE DE BRETAGNEfonderiedebretagne.com
Production of raw and pre-machined iron castings for automotive, transport, agriculture, rail, and hydraulic sectors with advanced industrial resources. |
135 | |||
| 82 | 134 | ||||
| 83 |
Unseenlabslinktr.ee
A French company using nanosatellites and RF detection technology to geolocate vessels, combat unlawful activities at sea, and provide data worldwide |
133 | |||
| 84 |
Novatech Technologiesnovatech-groupe.com
Design, manufacture, and integrate electronic solutions and products, supporting innovative companies from project conception to finished product delivery. |
132 | |||
| 85 |
KERHISkerhis.com
Specialized in developing and integrating business IT solutions for cooperatives, traders, and agro-industrial companies to enhance efficiency and customer service |
131 | |||
| 86 |
PLCfabrication-cosmetique-faconnage.fr
This company specializes in developing and manufacturing innovative cosmetics, liquid food supplements, and care products for premium brands as a private label manufacturer |
130 | |||
| 87 |
GROUPE HUGUETgroupe-huguet.fr
Designs and builds custom machines, integrating industrial robots, manages electrical installations including photovoltaic and EV charging, and provides industrial maintenance services. |
130 | |||
| 88 |
AMIAD - French Agency for AI in Defencedefense.gouv.fr
Accelerate AI integration within the defense ministry to enhance military capabilities and ensure success in future warfare scenarios. |
129 | |||
| 89 |
Alstef Mobile Roboticsalstefgroup.com
Development and integration of automated guided vehicles and autonomous mobile robots technology for industrial and logistics applications. |
125 | |||
| 90 |
Vitalacvitalac.eu
Manufacturer specializing in mineral and nutritional solutions for livestock, offering research-based products for breeders and distributors worldwide |
124 | |||
| 91 |
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 | |||
| 92 |
MAÎTRE JACQUESmaitre-jacques.fr
Production and sale of traditional and elaborated butchery products using locally sourced French meats for retail supermarkets. |
124 | |||
| 93 |
Hypred becomes Kersiakersia-group.com
Global leader in biosecurity and food safety, offering innovative solutions to prevent diseases and contamination in animals and humans throughout the food supply chain |
118 | |||
| 94 |
PHYTOMERphytomer.fr
Development and distribution of natural marine-based skincare products and spa treatments with professional support and eco-friendly commitment. |
117 | |||
| 95 | 117 | ||||
| 96 |
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 | |||
| 97 |
Groupe LFPlfp-sa.com
For over 50 years, a certified innovative company specializes in injection molding and extrusion, with a focus on diversification in various industries |
112 | |||
| 98 |
PERRIGO | LABORATOIRE DE LA MERlaboratoiredelamer.com
French pharmaceutical laboratory specializing in ORL and pediatric health products derived from marine and algae research, distributed internationally. |
110 | |||
| 99 |
SeqOneseqone.com
AI-powered NGS platform and expert services turn genomic data into clinical answers faster, supporting variant interpretation and reporting across various diseases. |
108 | |||
| 100 |
Compositeccompositec.eu
Leading skills development center specializing in composite materials, offering training, consulting, apprenticeship programs, and innovation initiatives for companies in various industries |
108 | |||
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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 Brittany
- The largest companies in Brittany 3,058
- Retail chains in Brittany 344
- Manufacturers in Brittany 307
- Multinational companies in Brittany 264
- Family-owned companies in Brittany 201
- Food and Beverage Manufacturing companies in Brittany 182
- Professional services firms in Brittany 167
- Public sector organisations in Brittany 165
- Hardware manufacturers in Brittany 148
- Distributors and wholesalers in Brittany 145
- Software Development companies in Brittany 132
- Food and beverage companies in Brittany 130
- SaaS companies in Brittany 128
- Critical infrastructure operators in Brittany 120
- Consumer goods companies in Brittany 115
- IT services companies in Brittany 113
- Education providers in Brittany 112
- Agriculture companies in Brittany 108
- Retail companies in Brittany 107
- IT Services and IT Consulting companies in Brittany 101
- Consulting firms in Brittany 99
- Healthcare providers in Brittany 97
- Contract manufacturers in Brittany 93
- Construction companies in Brittany 92
The same list elsewhere in France
- Companies with in-house R&D in France 8,750
- Companies with in-house R&D in Île-de-France 2,695
- Companies with in-house R&D in Auvergne-Rhône-Alpes 1,460
- Companies with in-house R&D in Occitanie 680
- Companies with in-house R&D in Grand Est 640
- Companies with in-house R&D in Provence-Alpes-Côte d'Azur 613
- Companies with in-house R&D in Nouvelle-Aquitaine 566
- Companies with in-house R&D in the Hauts-de-Seine department 510
- 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 the Haute-Garonne department 323
- Companies with in-house R&D in the Bouches-du-Rhône department 321
- 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
- Companies with in-house R&D in Toulouse 172