# The 50 largest chemical companies in Brittany
Tamtam tracks 68 chemical companies headquartered in Brittany. This list ranks the 50 largest by number of employees on LinkedIn, led by IPC, Kersia, inventing a food safe world and TIMAC AGRO France. Their median headcount is 69. Half of them were founded in 1985 or later. The most common headquarters are Saint-Malo (5) and Lorient (3).
The companies listed here are primarily involved in chemical manufacturing, biotechnology research, and farming, reflecting a strong focus on bio-based solutions and agricultural innovation within Brittany. These are mostly mid-sized firms, with the largest, IPC, employing 1401 people, and several others exceeding 200 employees. Many of these companies, such as Kersia, Olmix, and BIO3G, specialize in products for biosecurity, animal nutrition, and sustainable agriculture.
A notable pattern among these companies is their concentration in coastal and agricultural regions of Brittany, with a significant number of headquarters located in Saint-Malo and Dinard. Companies like TIMAC AGRO France, founded in 1959, and PHOSPHEA, established in 1976, demonstrate a history of long-standing operations in these specialized sectors.
馃嚝馃嚪 Brittany 路 50 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [IPC](https://www.tamtam.ai/c/ipc-brest) (ipc-sa.com)
Develops innovative biotechnological hygiene and maintenance solutions using living resources to protect infrastructure, people, and the environment sustainably. | Retail | 馃嚝馃嚪 Brest | 1,401 | 1987 |
| 2 | [Kersia, inventing a food safe world](https://www.tamtam.ai/c/kersia-inventing-a-food-safe-world) (kersia-group.com)
Global biosecurity and food safety, preventing disease and contamination in animals and humans across the food supply chain, including healthcare. | Chemical Manufacturing | 馃嚝馃嚪 Dinard | 797 | |
| 3 | [TIMAC AGRO France](https://www.tamtam.ai/c/timac-agro-france) (timacagro.fr)
Inspired by nature, improves natural resources, plant and animal nutrition for efficient, sustainable agriculture, enhancing agricultural performance. | Farming | 馃嚝馃嚪 Saint-Malo | 557 | 1959 |
| 4 | [DIANA](https://www.tamtam.ai/c/diana) (symrise.com)
A global supplier of fragrances, flavors, food, nutrition, and cosmetic ingredients, acquired by Symrise Group For updates, follow Symrise AG page | Food and Beverage Manufacturing | 馃嚝馃嚪 Rennes | 517 | |
| 5 | [Olmix](https://www.tamtam.ai/c/olmix) (olmix.com)
The company develops natural solutions using algae, clay, and trace elements to improve agricultural practices, benefiting farmers, animals, and the environment | Biotechnology Research | 馃嚝馃嚪 Br茅han | 386 | 1995 |
| 6 | [BIO3G](https://www.tamtam.ai/c/bio3g) (bio3g.com)
Offers innovative biostimulant solutions with natural compounds to stimulate soil life, optimize plant development, and enhance animal nutrition for increased profitability. | Farming | 馃嚝馃嚪 Merdrignac | 353 | 1997 |
| 7 | [TIMAC AGRO International](https://www.tamtam.ai/c/timac-agro-international) (timacagro.com)
Provides precise, innovative, complete nutritional solutions for soils, plants, and animals, supporting farmers globally for over 65 years. | Farming | 馃嚝馃嚪 Saint-Malo | 314 | 1959 |
| 8 | [PHOSPHEA](https://www.tamtam.ai/c/phosphea) (phosphea.com)
Specializing in phosphorus and calcium solutions for animal nutrition, this company is a global player with a production capacity exceeding 1 Mt | Chemical Manufacturing | 馃嚝馃嚪 Dinard | 268 | 1976 |
| 9 | [HTL Biotechnology](https://www.tamtam.ai/c/htl-biotechnology) (htlbiotech.com)
Develops and produces pharmaceutical-grade biopolymers like hyaluronic acid and polynucleotides for healthcare, with a focus on innovation and global market expansion. | Biotechnology Research | 馃嚝馃嚪 Javene | 243 | 1992 |
| 10 | [BCF Life Sciences](https://www.tamtam.ai/c/bcf-life-sciences) (bcf-lifesciences.com)
Extraction and marketing of natural amino acids and derivatives for pharmaceutical, health care, animal, and plant nutrition industries. | Manufacturing | 馃嚝馃嚪 Pleucadeuc | 220 | 1986 |
| 11 | [Stockmeier France](https://www.tamtam.ai/c/stockmeier-france) (stockmeier.fr)
Distribution of premium chemicals, solvents, and additives with expertise in food, hygiene, animal nutrition, water treatment, and industrial surface treatment across Europe and North Africa. | Chemical Manufacturing | 馃嚝馃嚪 Saint-Jacques-de-la-Lande | 219 | 1925 |
| 12 | [Terresis](https://www.tamtam.ai/c/terresis) (timabmagnesium.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. | Manufacturing | 馃嚝馃嚪 Saint-Malo | 176 | 1976 |
| 13 | [TECHNATURE](https://www.tamtam.ai/c/technature) (tech-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 | Personal Care Product Manufacturing | 馃嚝馃嚪 Dirinon | 145 | 1996 |
| 14 | [HYDRACHIM](https://www.tamtam.ai/c/hydrachim) (hydrachim.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 | Chemical Manufacturing | 馃嚝馃嚪 脡trelles | 142 | 1995 |
| 15 | [Hypred becomes Kersia](https://www.tamtam.ai/c/hypred-becomes-kersia) (kersia-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 | Chemical Manufacturing | 馃嚝馃嚪 Dinard | 118 | 1985 |
| 16 | [Groupe LFP](https://www.tamtam.ai/c/groupe-lfp) (lfp-sa.com)
For over 50 years, a certified innovative company specializes in injection molding and extrusion, with a focus on diversification in various industries | Plastics Manufacturing | 馃嚝馃嚪 Louvign茅-de-Bais | 112 | 1972 |
| 17 | [Celtys](https://www.tamtam.ai/c/celtys) (celtys.fr)
With 70 years of expertise, Celtys designs, produces, and markets prefabricated concrete solutions for construction, urban development, and agricultural buildings, focusing on innovation and quality | Architecture and Planning | 馃嚝馃嚪 Landivisiau | 109 | 1954 |
| 18 | [Compositec](https://www.tamtam.ai/c/compositec) (compositec.eu)
Leading skills development center specializing in composite materials, offering training, consulting, apprenticeship programs, and innovation initiatives for companies in various industries | Plastics Manufacturing | 馃嚝馃嚪 Saint-Malo | 108 | 1991 |
| 19 | [Briochin & Co](https://www.tamtam.ai/c/briochin-and-co) (lebriochin.com)
production of natural household cleaning products using traditional French saponification methods, emphasizing quality, eco-certification, and French artisanal heritage. | Chemical Manufacturing | 馃嚝馃嚪 | 103 | 1919 |
| 20 | [Multiplast - Groupe Carboman](https://www.tamtam.ai/c/multiplast-groupe-carboman) (multiplast.eu)
Designs, builds high-tech composite multi-hulls and mono-hulls for competition, aerospace, defense, industry, and construction sectors, with unparalleled track record. | Shipbuilding | 馃嚝馃嚪 Vannes | 91 | 1981 |
| 21 | [STACEM](https://www.tamtam.ai/c/stacem) (stacem.com)
STACEM designs and manufactures O-rings and elastomer parts for aerospace, nuclear, chemical, and agri-food industries | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Grand-Champ | 89 | 1983 |
| 22 | [Agriplas \| Sotralentz Packaging](https://www.tamtam.ai/c/agriplas-sotralentz-packaging) (agriplas.com)
Specializing in blow molding and injection molding, this European company designs and produces industrial packaging products for various industries for over 30 years | Packaging and Containers Manufacturing | 馃嚝馃嚪 Dinard | 79 | 1988 |
| 23 | [La Celtique](https://www.tamtam.ai/c/la-celtique) (celtique-industrielle.fr)
Specializing in industrial paint and maintenance products, providing high-quality solutions for various industrial applications and projects | Chemical Manufacturing | 馃嚝馃嚪 Pl茅rin | 75 | 1981 |
| 24 | [OCENE International](https://www.tamtam.ai/c/ocene-international) (ocene-industrie.fr)
Specialist in water treatment, hygiene, and environmental solutions for agriculture, industry, and communities nationally and internationally, focusing on performance, innovation, and sustainability | Automation Machinery Manufacturing | 馃嚝馃嚪 Louvign茅-du-D茅sert | 70 | 1976 |
| 25 | [AGRIMER](https://www.tamtam.ai/c/agrimer) (agrimer.com)
Develops marine ingredient-based products for cosmetics, agriculture, dietetics, from harvesting and processing algae to manufacturing and packaging, with patented innovations. | Personal Care Product Manufacturing | 馃嚝馃嚪 Plouguerneau | 69 | 1986 |
| 26 | [ActuaPlast](https://www.tamtam.ai/c/actuaplast) (actuaplast.fr)
Expertise in technical parts design, prototyping, and manufacturing through injection and extrusion blow molding for automotive OEMs including air filters and hoses. | Plastics and Rubber Product Manufacturing | 馃嚝馃嚪 La Foret Fouesnant | 68 | 2001 |
| 27 | [VESTAL Group](https://www.tamtam.ai/c/vestal-group) (vestal-group.com)
Design, manufacture, and supply of custom thermoformed plastic solutions for diverse sectors including leisure, medical, mobility, defense, and electronics. | Plastics Manufacturing | 馃嚝馃嚪 Pleucadeuc | 63 | 1951 |
| 28 | [MICROSTEEL](https://www.tamtam.ai/c/microsteel) (microsteel.com)
A specialized investment casting foundry that works with steel and cobalt-base superalloys for aerospace, defense, energy, and medical industries with modern machining capabilities | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Vern-sur-Seiche | 63 | 1978 |
| 29 | [YDEO](https://www.tamtam.ai/c/ydeo) (ydeo.com)
YDEO Group specializes in blending and producing liquid and powder products for various industries such as hygiene, disinfection, pool care, flavoring, culinary preparations, and e-liquids | Chemical Manufacturing | 馃嚝馃嚪 脡trelles | 54 | 1995 |
| 30 | [Polaris](https://www.tamtam.ai/c/polaris-quimper) (polaris.fr)
Specializing in innovative nutritional lipids, this company offers health ingredients and custom manufacturing services, with a focus on Omega-3 products | Biotechnology Research | 馃嚝馃嚪 Quimper | 53 | 1994 |
| 31 | [Flexirub](https://www.tamtam.ai/c/flexirub) (flexirub.com)
Flexirub is a supplier of customized elastomeric membranes for building and environmental applications, specializing in pre-fabricated solutions for waterproofing various structures | Construction | 馃嚝馃嚪 Saint-Thurial | 51 | 1996 |
| 32 | [Bollor茅 Packaging Films](https://www.tamtam.ai/c/bollore-packaging-films) (bollorefilms.com)
A global leader in manufacturing ultra-thin, recyclable shrink films for eco-friendly packaging solutions in food processing and consumer goods industries | Packaging and Containers Manufacturing | 馃嚝馃嚪 Ergu茅-Gab茅ric | 49 | |
| 33 | [Cool Roof France](https://www.tamtam.ai/c/cool-roof-france) (coolroof-france.com)
Cool Roof France offers affordable and sustainable cool roofing solutions to lower building and city temperatures, improve thermal comfort, and reduce energy consumption | Environmental Services | 馃嚝馃嚪 Le Faou | 46 | 2015 |
| 34 | [PLASTOBREIZ & PLASTOLOIR](https://www.tamtam.ai/c/plastobreiz-and-plastoloir) (plastobreiz.com)
French family-owned companies specializing in eco-designed thermoformed packaging solutions for food and industrial applications, offering custom-made, ready-to-use, and innovative creations with a focus on sustainability | Packaging and Containers Manufacturing | 馃嚝馃嚪 Auray | 39 | 1977 |
| 35 | [Bio Armor](https://www.tamtam.ai/c/bio-armor) (bioarmor.com)
Develops natural products for livestock and crop farming, addressing nutrition, environment, and hygiene for improved performance and environmental respect. | Biotechnology Research | 馃嚝馃嚪 Plaintel | 38 | 1984 |
| 36 | [AURAY PLAST](https://www.tamtam.ai/c/auray-plast) (aurayplast.fr)
A team of over 50 dedicated individuals specializing in designing, developing, and producing plastic parts with a modern injection molding facility | Plastics Manufacturing | 馃嚝馃嚪 Auray | 36 | 1974 |
| 37 | [Eliard-SPCP](https://www.tamtam.ai/c/eliard-spcp) (eliard-spcp.fr)
A long-standing agriculture supplier manufacturing and trading products, marketing seeds and fertilizers, providing storage, transport, and logistics solutions to distributors in multiple countries | Farming | 馃嚝馃嚪 Pontivy | 35 | 1932 |
| 38 | [McBride Aerosols 馃彮](https://www.tamtam.ai/c/mcbride-aerosols) (mbaerosols.com)
A leading European aerosol manufacturer producing hygiene, cosmetic, cleaning, and insecticide products for major French and European private labels for over 40 years | Chemical Manufacturing | 馃嚝馃嚪 Rosporden | 34 | |
| 39 | [AEGIS PLATING](https://www.tamtam.ai/c/aegis-plating) (aegis-plating.com)
A consortium of 11 companies specializing in metal surface treatment services | Metal Treatments | 馃嚝馃嚪 Lorient | 33 | 2004 |
| 40 | [Avel robotics](https://www.tamtam.ai/c/avel-robotics) (avelrobotics.com)
Specializing in high-performance composite parts using AFP, our company brings 4D composites to industries like offshore racing, naval, and aerospace | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Lorient | 33 | 2017 |
| 41 | [PRESTIA](https://www.tamtam.ai/c/prestia) (prestia.fr)
Specialized in high-end anticorrosion treatments for steel, offering galvanization, powder coating, metallization, and liquid painting services in the western region of France | Architecture and Planning | 馃嚝馃嚪 Le Val D'oust | 31 | 2004 |
| 42 | [ORC Catamarans](https://www.tamtam.ai/c/orc-catamarans) (ocean-rider-catamarans.com)
Design and build semi-custom high-performance catamarans combining racing speed and cruising comfort for offshore and ocean sailing adventures. | Shipbuilding | 馃嚝馃嚪 Lorient | 31 | 1999 |
| 43 | [ROTOTEC](https://www.tamtam.ai/c/rototec) (rototec.com)
Specializing in designing and manufacturing plastic parts through rotational molding to meet your specific requirements and needs | Plastics Manufacturing | 馃嚝馃嚪 Miniac-Morvan | 31 | 1986 |
| 44 | [SMM Composites](https://www.tamtam.ai/c/smm-composites) (smm-composites.com)
Specializing in composite design, SNE SMM offers machining services, model fabrication, and tooling for various industries with high-quality standards and flexibility in project execution | Industrial Machinery Manufacturing | 馃嚝馃嚪 Lanester | 30 | 1984 |
| 45 | [DPE](https://www.tamtam.ai/c/dpe) (dpe.fr)
The company provides innovative and efficient solutions for cleaning, stripping, and surface protection for professionals in the building industry | Chemical Manufacturing | 馃嚝馃嚪 Domloup | 26 | 1985 |
| 46 | [STOCKMEIER France \| Cleaning solutions](https://www.tamtam.ai/c/stockmeier-france-cleaning-solutions) (stockmeier.fr)
With nearly 60 years of experience, the company specializes in formulating hygiene and disinfection products for various industries using advanced enzymatic technology | Chemical Manufacturing | 馃嚝馃嚪 Saint-Jacques-de-la-Lande | 26 | 1925 |
| 47 | [Le Verre Fluor茅](https://www.tamtam.ai/c/le-verre-fluore) (leverrefluore.com)
Industry leader in fluoride glass and IR optical fiber technology since 1978, providing innovative products and solutions for various sectors | Medical Equipment Manufacturing | 馃嚝馃嚪 Bruz | 26 | 1977 |
| 48 | [CODIF Technologie Naturelle](https://www.tamtam.ai/c/codif-technologie-naturelle) (codif-tn.com)
Innovative company pushing boundaries in cosmetics and biotechnology by inventing technical solutions inspired by plankton, seaweeds, and plants | Personal Care Product Manufacturing | 馃嚝馃嚪 Saint-Malo | 26 | 2002 |
| 49 | [FERTEMIS](https://www.tamtam.ai/c/fertemis) (fertemis.fr)
A chemicals company in France, specializing in producing and distributing chemicals from their location in ZONE INDUSTRIELLE 9 RUE LAVOISIER, PONTIVY | Chemical Manufacturing | 馃嚝馃嚪 Pontivy | 25 | |
| 50 | [Nautix](https://www.tamtam.ai/c/nautix) (nautix.com)
A company founded in 1980, specializing in designing nautical products like windsurfing accessories and marine paints for boat protection Their mission is innovation with quality | Manufacturing | 馃嚝馃嚪 Guidel | 25 | 1980 |
## 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 Brittany
- [The largest companies in Brittany](https://www.tamtam.ai/l/largest-companies-brittany) (3,058)
- [Companies with in-house R&D in Brittany](https://www.tamtam.ai/l/r-and-d-companies-brittany) (366)
- [Retail chains in Brittany](https://www.tamtam.ai/l/retail-chains-brittany) (344)
- [Manufacturers in Brittany](https://www.tamtam.ai/l/manufacturers-brittany) (307)
- [Multinational companies in Brittany](https://www.tamtam.ai/l/multinational-companies-brittany) (264)
- [Family-owned companies in Brittany](https://www.tamtam.ai/l/family-owned-companies-brittany) (201)
- [Food and Beverage Manufacturing companies in Brittany](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-brittany) (182)
- [Professional services firms in Brittany](https://www.tamtam.ai/l/professional-services-firms-brittany) (167)
- [Public sector organisations in Brittany](https://www.tamtam.ai/l/public-sector-organisations-brittany) (165)
- [Hardware manufacturers in Brittany](https://www.tamtam.ai/l/hardware-companies-brittany) (148)
- [Distributors and wholesalers in Brittany](https://www.tamtam.ai/l/distributors-and-wholesalers-brittany) (145)
- [Software Development companies in Brittany](https://www.tamtam.ai/l/software-development-companies-brittany) (132)
- [Food and beverage companies in Brittany](https://www.tamtam.ai/l/food-and-beverage-companies-brittany) (130)
- [SaaS companies in Brittany](https://www.tamtam.ai/l/saas-companies-brittany) (128)
- [Critical infrastructure operators in Brittany](https://www.tamtam.ai/l/critical-infrastructure-operators-brittany) (120)
- [Consumer goods companies in Brittany](https://www.tamtam.ai/l/consumer-goods-companies-brittany) (115)
- [IT services companies in Brittany](https://www.tamtam.ai/l/it-services-companies-brittany) (113)
- [Education providers in Brittany](https://www.tamtam.ai/l/education-companies-brittany) (112)
- [Agriculture companies in Brittany](https://www.tamtam.ai/l/agriculture-companies-brittany) (108)
- [Retail companies in Brittany](https://www.tamtam.ai/l/retail-companies-brittany) (107)
- [IT Services and IT Consulting companies in Brittany](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-brittany) (101)
- [Consulting firms in Brittany](https://www.tamtam.ai/l/consulting-firms-brittany) (99)
- [Healthcare providers in Brittany](https://www.tamtam.ai/l/healthcare-providers-brittany) (97)
- [Contract manufacturers in Brittany](https://www.tamtam.ai/l/contract-manufacturers-brittany) (93)
## The same list elsewhere in France
- [Chemical companies in France](https://www.tamtam.ai/l/chemical-companies-france) (1,398)
- [Chemical companies in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/chemical-companies-auvergne-rhone-alpes) (315)
- [Chemical companies in 脦le-de-France](https://www.tamtam.ai/l/chemical-companies-ile-de-france) (261)
- [Chemical companies in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/chemical-companies-provence-alpes-cote-dazur) (109)
- [Chemical companies in Grand Est](https://www.tamtam.ai/l/chemical-companies-grand-est) (108)
- [Chemical companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/chemical-companies-nouvelle-aquitaine) (104)
- [Chemical companies in Hauts-de-France](https://www.tamtam.ai/l/chemical-companies-hauts-de-france) (103)
- [Chemical companies in Pays de la Loire](https://www.tamtam.ai/l/chemical-companies-pays-de-la-loire) (81)
- [Chemical companies in Occitanie](https://www.tamtam.ai/l/chemical-companies-occitanie) (79)
- [Chemical companies in the Rh么ne department](https://www.tamtam.ai/l/chemical-companies-rhone) (74)
- [Chemical companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/chemical-companies-hauts-de-seine) (72)
- [Chemical companies in Normandy](https://www.tamtam.ai/l/chemical-companies-normandy) (55)
- [Chemical companies in the Ain department](https://www.tamtam.ai/l/chemical-companies-ain) (51)
- [Chemical companies in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/chemical-companies-bouches-du-rhone) (50)
- [Chemical companies in Bourgogne-Franche-Comt茅](https://www.tamtam.ai/l/chemical-companies-bourgogne-franche-comte) (45)
- [Chemical companies in the Nord department](https://www.tamtam.ai/l/chemical-companies-nord) (43)
- [Chemical companies in the Is猫re department](https://www.tamtam.ai/l/chemical-companies-isere) (40)
- [Chemical companies in the Gironde department](https://www.tamtam.ai/l/chemical-companies-gironde) (35)
- [Chemical companies in the Alpes-Maritimes department](https://www.tamtam.ai/l/chemical-companies-alpes-maritimes) (34)
- [Chemical companies in Centre-Val de Loire](https://www.tamtam.ai/l/chemical-companies-centre-val-de-loire) (33)
- [Chemical companies in the Haute-Garonne department](https://www.tamtam.ai/l/chemical-companies-haute-garonne) (29)
- [Chemical companies in the Ille-et-Vilaine department](https://www.tamtam.ai/l/chemical-companies-ille-et-vilaine) (28)
- [Chemical companies in Paris](https://www.tamtam.ai/l/chemical-companies-paris) (64)
## The same list elsewhere
- [Chemical companies in the world](https://www.tamtam.ai/l/chemical-companies-in-the-world) (6,503)
- [Chemical companies in Europe](https://www.tamtam.ai/l/chemical-companies-in-europe) (3,081)
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Source: https://www.tamtam.ai/l/chemical-companies-brittany