# The 30 largest manufacturers in the Isère department

Tamtam tracks 178 manufacturers headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by ARaymond, Soitec and Vicat. Their median headcount is 331. Half of them were founded in 1975 or later. The most common headquarters are Grenoble (6), Montbonnot-Saint-Martin (2) and Saint-Quentin-Fallavier (2).

The companies listed are primarily manufacturers in the Isère department, ranging from well-established industrial firms to newer ventures. They include those in specialized sectors like semiconductor manufacturing, as exemplified by Soitec, which produces innovative semiconductor materials, and LYNRED, focused on infrared technologies. Other companies, such as ARaymond, design and manufacture fastening systems, while Vicat specializes in cement production. Verkor is a more recent addition, producing low-carbon batteries, and Rossignol Group is known for winter sports equipment. Petzl designs tools for exploration, and MTB specializes in recycling complex waste.

A notable characteristic among these companies is their long history, with many founded in the 19th or early 20th century, such as ARaymond (1865), Vicat (1853), Rossignol Group (1907), and Condat SA (1854). This indicates a concentration of long-standing industrial expertise in the region.

🇫🇷 Isère · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ARaymond](https://www.tamtam.ai/c/araymond) (araymond.com)<br>Design and manufacture of sustainable fastening, fluid connection, and integration systems for automotive, energy, healthcare, agriculture, and construction industries worldwide through collaborative innovation. | Manufacturing | 🇫🇷 Grenoble | 2,155 | 1865 |
| 2 | [Soitec](https://www.tamtam.ai/c/soitec) (soitec.com)<br>A world leader in innovative semiconductor materials production for various electronics markets, striving for disruptive innovation with energy-efficient, competitive products | Semiconductor Manufacturing | 🇫🇷 Bernin | 1,935 | 1992 |
| 3 | [Vicat](https://www.tamtam.ai/c/vicat) (vicat.fr)<br>A family-owned company specializing in cement production and distribution, operating in 11 countries with over 7,040 employees worldwide | Wholesale Building Materials | 🇫🇷 L'Isle-d'Abeau | 1,261 | 1853 |
| 4 | [Verkor](https://www.tamtam.ai/c/verkor) (verkor.com)<br>Produces low-carbon batteries in France and Europe for electric vehicles and stationary storage, with a Gigafactory operational by 2025. | Motor Vehicle Parts Manufacturing | 🇫🇷 Grenoble | 997 | 2020 |
| 5 | [Sames](https://www.tamtam.ai/c/sames) (sames.com)<br>Provides equipment and services for applying paints, adhesives, and sealants, including guns, pumps, and dosing machines, focusing on efficiency and sustainability. | Industrial Machinery Manufacturing | 🇫🇷 Meylan | 990 | 1925 |
| 6 | [Rossignol Group](https://www.tamtam.ai/c/rossignol-group) (grouperossignol.com)<br>Leading manufacturer of winter sports equipment, specializing in skis and ski boots, with a focus on diversification and growth. | Spectator Sports | 🇫🇷 Saint-Jean-de-Moirans | 880 | 1907 |
| 7 | [Cegelec CEM](https://www.tamtam.ai/c/cegelec-cem) (cegelec-cem.fr)<br>Designs, builds, and integrates equipment for new nuclear constructions, renovations, decommissioning, and high-stakes mechanical and electromechanical engineering projects in nuclear environments. | Industrial Machinery Manufacturing | 🇫🇷 Grenoble | 770 |  |
| 8 | [LYNRED](https://www.tamtam.ai/c/lynred) (lynred.com)<br>Designs and manufactures high-quality infrared technologies for aerospace, defense, and commercial markets, including IR detectors for military and thermal imaging equipment. | Semiconductor Manufacturing | 🇫🇷 Veurey-Voroize | 749 | 1986 |
| 9 | [Petzl](https://www.tamtam.ai/c/petzl) (petzl.com)<br>A company founded on a passion for exploration, Petzl designs tools and solutions for athletes and professionals to push their limits day and night | Retail | 🇫🇷 Crolles | 711 | 1975 |
| 10 | [MTB](https://www.tamtam.ai/c/mtb) (mtb-recycling.fr)<br>Specializes in recycling complex waste, manufacturing recycling machines, and engineering turnkey plants for efficient industrial waste management and recovery. | Machinery Manufacturing | 🇫🇷 Saint-Chef | 653 | 1981 |
| 11 | [Serge Ferrari Group](https://www.tamtam.ai/c/serge-ferrari-group) (sergeferrari.com)<br>Designs and manufactures innovative composite fabrics for light architectural and exterior landscaping applications focused on durability, safety, design, comfort, and eco-responsibility | Textile Manufacturing | 🇫🇷 La Tour-du-Pin | 462 | 1974 |
| 12 | [KIS](https://www.tamtam.ai/c/kis) (kis.fr)<br>Provider of self-service photo booths and laundry machines, offering convenient, automated solutions for photography and laundry needs worldwide. | Retail Office Equipment | 🇫🇷 Échirolles | 384 |  |
| 13 | [Minitubes](https://www.tamtam.ai/c/minitubes) (minitubes.com)<br>A company specializing in custom high precision metal tubing manufacturing, offering innovative solutions from design to production with tight tolerance control | Medical Equipment Manufacturing | 🇫🇷 Grenoble | 346 | 1932 |
| 14 | [Winoa](https://www.tamtam.ai/c/winoa) (winoa.com)<br>An international leader in steel abrasives, providing solutions for metal and stone industries worldwide, with a focus on quality, innovation, and customer satisfaction | Manufacturing | 🇫🇷 Le Cheylas | 341 | 1961 |
| 15 | [Condat SA](https://www.tamtam.ai/c/condat-sa) (condat.fr)<br>Formulates, produces wide range industrial lubricants; metal-forming, technical greases, hydraulic oils, cutting fluids, soaps, surface treatments. Focus on high-performance, responsible solutions. | Chemical Manufacturing | 🇫🇷 Chasse-sur-Rhône | 331 | 1854 |
| 16 | [MasterGrid](https://www.tamtam.ai/c/mastergrid) (mastergrid.com)<br>MasterGrid specializes in electrical system services from high to low voltage, providing tailored solutions to optimize system lifecycle and improve environmental impact | Electric Power Transmission, Control, and Distribution | 🇫🇷 Grenoble | 328 | 2019 |
| 17 | [ECM Technologies - Industrial Furnaces](https://www.tamtam.ai/c/ecm-technologies-industrial-furnaces) (ecm-furnaces.com)<br>Design and supply of vacuum, high-temperature, and thermochemical process machines and solutions for various industrial sectors worldwide. | Machinery Manufacturing | 🇫🇷 Grenoble | 326 | 1928 |
| 18 | [Telenco](https://www.tamtam.ai/c/telenco) (telenco.com)<br>Industrial group designing, manufacturing, and distributing equipment for telecoms and datacom networks through production sites, B2B e-commerce, engineering, and technician training services. | Telecommunications | 🇫🇷 Moirans | 317 | 1999 |
| 19 | [Waga Energy](https://www.tamtam.ai/c/waga-energy) (waga-energy.com)<br>This company converts landfill gas into Renewable Natural Gas (RNG) using patented technology, reducing CO2 emissions and supplying households with biomethane | Renewable Energy Power Generation | 🇫🇷 Eybens | 316 | 2015 |
| 20 | [OROS](https://www.tamtam.ai/c/oros) (oros.com)<br>Specializing in noise and vibration testing systems, this dynamic company offers high-tech instruments, software, and related services for various industries globally | Industrial Machinery Manufacturing | 🇫🇷 Montbonnot-Saint-Martin | 312 | 1985 |
| 21 | [Groupe Pierre Martinet](https://www.tamtam.ai/c/groupe-pierre-martinet) (martinet.fr)<br>Producer of fresh prepared salads combining authentic recipes, culinary innovation, environmental responsibility, and strong team spirit across Europe. | Food and Beverage Manufacturing | 🇫🇷 Saint-Quentin-Fallavier | 302 | 1968 |
| 22 | [Teisseire](https://www.tamtam.ai/c/teisseire) (teisseire.com)<br>Leading producer of organic syrups and fruit juices, specializing in non-alcoholic refreshing beverages with iconic consumer and food service brands. | Beverage Manufacturing | 🇫🇷 Crolles | 287 | 1720 |
| 23 | [ARTURIA](https://www.tamtam.ai/c/arturia) (arturia.com)<br>Creates instruments and effects for music creation, encouraging musical discovery and artistic process with accessible and inspiring sonic experiences for musicians. | Software Development | 🇫🇷 Montbonnot-Saint-Martin | 253 | 1999 |
| 24 | [MAFELEC TEAM](https://www.tamtam.ai/c/mafelec-team) (mafelec.com)<br>Designs subassemblies and equipment for harsh environments, providing innovative solutions for various sectors like HMI, railway, industry, and defense. | Industrial Machinery Manufacturing | 🇫🇷 Chimilin | 249 | 1947 |
| 25 | [ULIS](https://www.tamtam.ai/c/ulis) (lynred.com)<br>Global leader in designing and manufacturing high quality infrared technologies for aerospace, defense, and commercial markets, with a vast portfolio of detectors | Semiconductor Manufacturing | 🇫🇷 Veurey-Voroize | 243 | 2002 |
| 26 | [Skyepharma- Fully integrated CDMO](https://www.tamtam.ai/c/skyepharma-fully-integrated-cdmo) (skyepharma.fr)<br>Develops, manufactures, and packages complex oral solid dosage forms. Provides tailored solutions from small-scale programs to commercial production for clients. | Pharmaceutical Manufacturing | 🇫🇷 Saint-Quentin-Fallavier | 232 | 1993 |
| 27 | [Groupe Efire](https://www.tamtam.ai/c/groupe-efire) (groupe-efire.com)<br>European leader in industrial sealing, fluids transfer, precision cutting, and technical protection with multiple brands and global clients. | Industrial Machinery Manufacturing | 🇫🇷 Chasse-sur-Rhône | 230 | 1872 |
| 28 | [BioLogic](https://www.tamtam.ai/c/biologic) (biologic.net)<br>Design and manufacture of ultra-precise measurement instruments, including potentiostats and battery cyclers, for electrochemistry, material testing, and industrial battery product optimization. | Computers and Electronics Manufacturing | 🇫🇷 Seyssinet-Pariset | 211 | 1983 |
| 29 | [Groupe elydan](https://www.tamtam.ai/c/groupe-elydan) (elydan.eu)<br>Specializing in manufacturing polymer products and solutions for infrastructure, networks, and buildings, this French industrial player is a leading European provider of polyethylene and polypropylene solutions | Plastics Manufacturing | 🇫🇷 Saint-Étienne-de-Saint-Geoirs | 203 | 1962 |
| 30 | [SD SERVICES](https://www.tamtam.ai/c/sd-services) (sdservices.fr)<br>Provides bespoke utility vehicle outfitting, offering comprehensive solutions for professionals, ensuring safety, quality, and ready-to-use vehicles. | Motor Vehicle Parts Manufacturing | 🇫🇷 Eybens | 203 | 1987 |

## 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 Isère department

- [The largest companies in the Isère department](https://www.tamtam.ai/l/largest-companies-isere) (1,457)
- [Companies with in-house R&D in the Isère department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304)
- [Multinational companies in the Isère department](https://www.tamtam.ai/l/multinational-companies-isere) (174)
- [Hardware manufacturers in the Isère department](https://www.tamtam.ai/l/hardware-companies-isere) (143)
- [Retail chains in the Isère department](https://www.tamtam.ai/l/retail-chains-isere) (100)
- [Software Development companies in the Isère department](https://www.tamtam.ai/l/software-development-companies-isere) (90)
- [Professional services firms in the Isère department](https://www.tamtam.ai/l/professional-services-firms-isere) (87)
- [Public sector organisations in the Isère department](https://www.tamtam.ai/l/public-sector-organisations-isere) (80)
- [Distributors and wholesalers in the Isère department](https://www.tamtam.ai/l/distributors-and-wholesalers-isere) (78)
- [IT services companies in the Isère department](https://www.tamtam.ai/l/it-services-companies-isere) (75)
- [SaaS companies in the Isère department](https://www.tamtam.ai/l/saas-companies-isere) (72)
- [Electronics and semiconductor companies in the Isère department](https://www.tamtam.ai/l/electronics-companies-isere) (70)
- [Contract manufacturers in the Isère department](https://www.tamtam.ai/l/contract-manufacturers-isere) (68)
- [IT Services and IT Consulting companies in the Isère department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-isere) (68)
- [Family-owned companies in the Isère department](https://www.tamtam.ai/l/family-owned-companies-isere) (61)
- [Industrial Machinery Manufacturing companies in the Isère department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-isere) (58)
- [Consulting firms in the Isère department](https://www.tamtam.ai/l/consulting-firms-isere) (57)
- [Construction companies in the Isère department](https://www.tamtam.ai/l/construction-companies-isere) (52)
- [Pharmaceutical companies in the Isère department](https://www.tamtam.ai/l/pharmaceutical-companies-isere) (47)
- [Education providers in the Isère department](https://www.tamtam.ai/l/education-companies-isere) (46)
- [Medical device companies in the Isère department](https://www.tamtam.ai/l/medical-device-companies-isere) (43)
- [Critical infrastructure operators in the Isère department](https://www.tamtam.ai/l/critical-infrastructure-operators-isere) (41)
- [Energy companies in the Isère department](https://www.tamtam.ai/l/energy-companies-isere) (41)
- [Chemical companies in the Isère department](https://www.tamtam.ai/l/chemical-companies-isere) (40)

## The same list elsewhere in France

- [Manufacturers in France](https://www.tamtam.ai/l/manufacturers-france) (6,697)
- [Manufacturers in Île-de-France](https://www.tamtam.ai/l/manufacturers-ile-de-france) (1,515)
- [Manufacturers in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/manufacturers-auvergne-rhone-alpes) (1,216)
- [Manufacturers in Grand Est](https://www.tamtam.ai/l/manufacturers-grand-est) (573)
- [Manufacturers in Nouvelle-Aquitaine](https://www.tamtam.ai/l/manufacturers-nouvelle-aquitaine) (498)
- [Manufacturers in Pays de la Loire](https://www.tamtam.ai/l/manufacturers-pays-de-la-loire) (484)
- [Manufacturers in Occitanie](https://www.tamtam.ai/l/manufacturers-occitanie) (433)
- [Manufacturers in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/manufacturers-provence-alpes-cote-dazur) (394)
- [Manufacturers in Hauts-de-France](https://www.tamtam.ai/l/manufacturers-hauts-de-france) (369)
- [Manufacturers in the Rhône department](https://www.tamtam.ai/l/manufacturers-rhone) (322)
- [Manufacturers in Brittany](https://www.tamtam.ai/l/manufacturers-brittany) (307)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Manufacturers in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/manufacturers-bourgogne-franche-comte) (272)
- [Manufacturers in Normandy](https://www.tamtam.ai/l/manufacturers-normandy) (245)
- [Manufacturers in Centre-Val de Loire](https://www.tamtam.ai/l/manufacturers-centre-val-de-loire) (207)
- [Manufacturers in the Nord department](https://www.tamtam.ai/l/manufacturers-nord) (204)
- [Manufacturers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/manufacturers-bouches-du-rhone) (187)
- [Manufacturers in the Haute-Garonne department](https://www.tamtam.ai/l/manufacturers-haute-garonne) (159)
- [Manufacturers in the Gironde department](https://www.tamtam.ai/l/manufacturers-gironde) (137)
- [Manufacturers in the Essonne department](https://www.tamtam.ai/l/manufacturers-essonne) (127)
- [Manufacturers in the Loire-Atlantique department](https://www.tamtam.ai/l/manufacturers-loire-atlantique) (125)
- [Manufacturers in the Loire department](https://www.tamtam.ai/l/manufacturers-loire) (122)
- [Manufacturers in the Bas-Rhin department](https://www.tamtam.ai/l/manufacturers-bas-rhin) (118)
- [Manufacturers in Paris](https://www.tamtam.ai/l/manufacturers-paris) (546)

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Source: https://www.tamtam.ai/l/manufacturers-isere