# 50 leading electronics and semiconductor companies in Auvergne-Rhône-Alpes

Tamtam tracks 154 electronics and semiconductor companies headquartered in Auvergne-Rhône-Alpes. This list ranks the 50 largest by number of employees on LinkedIn, led by Soitec, IN Groupe and CEA-Leti. Their median headcount is 179. Half of them were founded in 1983 or later. The most common headquarters are Grenoble (5), Limonest (2) and Meylan (2).

The electronics and semiconductor companies in Auvergne-Rhône-Alpes show a strong presence in specialized manufacturing and technology development. Many are mid-sized to large firms, with a focus on advanced components and systems. Soitec is a leader in semiconductor materials, while CEA-Leti develops micro- and nanotechnologies. LYNRED designs infrared technologies, and NSE Groupe provides engineering and maintenance for aerospace and defense.

The sector is characterized by companies providing critical components and solutions for demanding industries. There is a notable cluster of companies engaged in semiconductor manufacturing and aviation/aerospace component manufacturing, indicating a regional specialization in high-tech industrial applications.

🇫🇷 Auvergne-Rhône-Alpes · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [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 |
| 2 | [IN Groupe](https://www.tamtam.ai/c/in-groupe) (ingroupe.com)<br>Provides identity solutions, secure digital services integrating electronics and biometrics for states, citizens, and businesses, ensuring digital sovereignty. | IT Services and IT Consulting | 🇫🇷 Paris | 1,852 | 1538 |
| 3 | [CEA-Leti](https://www.tamtam.ai/c/cea-leti) (leti-cea.com)<br>Development of micro- and nanotechnologies for smart, energy-efficient, and secure industrial applications including healthcare, energy, and digital sectors. | Semiconductor Manufacturing | 🇫🇷 Grenoble | 1,223 | 1967 |
| 4 | [NSE Groupe](https://www.tamtam.ai/c/nse-groupe) (nse-groupe.com)<br>Industrial company providing tailored engineering, wiring, integration, maintenance, and repair solutions for defense, aerospace, transport, and consumer electronics. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Abrest | 911 | 1983 |
| 5 | [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 |
| 6 | [Crouzet](https://www.tamtam.ai/c/crouzet) (crouzet.com)<br>A manufacturer providing customized mechatronic components for aerospace, transportation, energy, and machinery industries Specializing in automation, motion, sensors, controls, and instrumentation solutions | Aviation and Aerospace Component Manufacturing | 🇫🇷 Valence | 721 | 1921 |
| 7 | [EFI Automotive](https://www.tamtam.ai/c/efi-automotive) (efiautomotive.com)<br>Develops mechatronic solutions for engine, transmission, and chassis applications, including sensors, actuators, and smart modules for leading automakers worldwide. | Motor Vehicle Parts Manufacturing | 🇫🇷 Miribel | 609 | 1936 |
| 8 | [Acoem](https://www.tamtam.ai/c/acoem) (acoem.com)<br>Acoem provides AI-powered sensors and data solutions to help organizations achieve a balance between progress, preservation, and conservation worldwide | Computers and Electronics Manufacturing | 🇫🇷 Limonest | 557 | 1967 |
| 9 | [Amphenol SOCAPEX](https://www.tamtam.ai/c/amphenol-socapex) (amphenol-socapex.com)<br>Designs and manufactures reliable, innovative interconnection solutions for harsh environments, specializing in electrical and fiber optic connectors, contacts, accessories, and cabling. | Defense and Space Manufacturing | 🇫🇷 Thyez | 501 | 1947 |
| 10 | [Nicomatic](https://www.tamtam.ai/c/nicomatic) (nicomatic.com)<br>Develops, manufactures, and sells micro-connectors for aerospace, defense, medical, and production industries, offering customized, innovative solutions with short lead times. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Bons-en-Chablais | 484 |  |
| 11 | [Centum T&S](https://www.tamtam.ai/c/centum-t-and-s) (centumelectronics.com)<br>Designs, industrializes, and produces electronic systems and embedded software for customers in various industries, including aerospace, defense, and automotive. | IT Services and IT Consulting | 🇫🇷 Ecully | 407 | 1990 |
| 12 | [TRONICO](https://www.tamtam.ai/c/tronico) (tronico-agon.com)<br>Design, integrate electronic systems for high added-value equipment across its lifecycle. Also develops complex electronically-dominant systems as an Original Design Manufacturer. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Saint-Philbert-de-Bouaine | 395 | 1973 |
| 13 | [Aventech](https://www.tamtam.ai/c/aventech) (aventech-e.com)<br>Designs, industrializes, and produces critical high/low voltage electrical equipment for harsh environments, offering integrated solutions like shelters, skids, and industrial switchboards. | Manufacturing | 🇫🇷 Valence | 267 | 1974 |
| 14 | [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 |
| 15 | [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 |
| 16 | [Trixell](https://www.tamtam.ai/c/trixell) (trixell.com)<br>Innovative joint venture specializing in X-ray flat panel digital detectors for various medical radiology applications | Medical Equipment Manufacturing | 🇫🇷 Moirans | 218 | 1997 |
| 17 | [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 |
| 18 | [ADTP](https://www.tamtam.ai/c/adtp) (adtp.com)<br>Provides industrial subcontracting services like assembly, electronics, quality control, packaging, and mechatronics, while facilitating employment for disabled individuals. | Manufacturing | 🇫🇷 Cran-Gevrier | 199 | 1957 |
| 19 | [GERAL](https://www.tamtam.ai/c/geral) (geral.com)<br>Design and manufacture of custom electrical and electronic equipment for industrial machine automation and power supply with multi-technical integration. | Electrical Equipment Manufacturing | 🇫🇷 Belley | 195 | 1970 |
| 20 | [CEA Tech](https://www.tamtam.ai/c/cea-tech) (cea-tech.fr)<br>technology research unit developing ICT, energy, healthcare technologies, bridging research and business, providing access to key enabling technologies | Think Tanks | 🇫🇷 Grenoble | 192 |  |
| 21 | [Dolphin Semiconductor](https://www.tamtam.ai/c/dolphin-semiconductor) (dolphin-semiconductor.com)<br>Leading provider of semiconductor IP solutions, specializing in mixed-signal IP design targeting various markets and accelerating customer design cycles. | Semiconductor Manufacturing | 🇫🇷 Meylan | 187 | 2018 |
| 22 | [Wurth Elektronik France](https://www.tamtam.ai/c/wurth-elektronik-france) (we-online.com)<br>Supplier of electronic and electromechanical components, printed circuit boards, and intelligent systems with quality products and fast delivery services. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Meyzieu | 184 |  |
| 23 | [LEMAN INDUSTRIE Group](https://www.tamtam.ai/c/leman-industrie-group) (leman-industrie.com)<br>Manufacturing company offering client support from design to production, leveraging 40 years of multi-technology expertise and optimized processes. | Motor Vehicle Parts Manufacturing | 🇫🇷 Marignier | 181 | 1971 |
| 24 | [Atral Group](https://www.tamtam.ai/c/atral-group) (atralgroup.com)<br>Design and manufacture of advanced radio electronic security systems with long-lasting energy autonomy and certified remote monitoring services across Europe. | Security and Investigations | 🇫🇷 Crolles | 181 | 1977 |
| 25 | [STid](https://www.tamtam.ai/c/stid) (stid-security.com)<br>Develops contactless identification solutions using RFID, NFC, Bluetooth, and IoT technologies to secure access and provide traceability for assets. | Computer and Network Security | 🇫🇷 Gréasque | 179 | 1996 |
| 26 | [MGB Décolletage](https://www.tamtam.ai/c/mgb-decolletage) (mgb.fr)<br>French family-owned company specialized in precision machining of very small parts for aerospace, space, telecommunications, and medical markets, focusing on innovation and co-development | Aviation and Aerospace Component Manufacturing | 🇫🇷 Marnaz | 171 | 1956 |
| 27 | [TCL SunPower Global](https://www.tamtam.ai/c/tcl-sunpower-global) (sunpowerglobal.com)<br>Development and provision of innovative solar energy solutions for homeowners, businesses, and energy producers to promote sustainability worldwide. | Renewable Energy Equipment Manufacturing | 🇫🇷 | 146 |  |
| 28 | [Kalray](https://www.tamtam.ai/c/kalray) (kalrayinc.com)<br>Develops intelligent processors and acceleration solutions for massive data flows, particularly AI, enabling high-performance, energy-efficient applications across various high-growth sectors. | Semiconductor Manufacturing | 🇫🇷 Montbonnot | 138 | 2008 |
| 29 | [Centralp](https://www.tamtam.ai/c/centralp) (centralp.fr)<br>Global provider of embedded electronic and software solutions with a strong focus on R&D, production, training support, and expertise for various industries worldwide | Industrial Machinery Manufacturing | 🇫🇷 Vénissieux | 127 | 1971 |
| 30 | [EASii IC](https://www.tamtam.ai/c/easii-ic) (easii-ic.com)<br>Design and production of custom analog, digital, mixed-signal integrated circuits, electronic boards, FPGAs for various industries including aerospace and medical. | Semiconductor Manufacturing | 🇫🇷 Grenoble | 127 | 2002 |
| 31 | [AMPERE group](https://www.tamtam.ai/c/ampere-group) (ampere-elec.com)<br>Design and assemble custom electrical solutions including harnesses, cords, overmolding, electromechanics, and enclosures for diverse industries. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Saint-Genix-les-Villages | 119 | 1990 |
| 32 | [Quobly](https://www.tamtam.ai/c/quobly) (quobly.io)<br>A company in Grenoble, France is developing a universal quantum computer using semiconductor-industry processes to solve problems classical computers cannot | Computer Hardware Manufacturing | 🇫🇷 Grenoble | 103 | 2022 |
| 33 | [Fuji Electric France S.A.S.](https://www.tamtam.ai/c/fuji-electric-france-s-a-s) (fujielectric.fr)<br>Designs and manufactures pressure transmitters, instrumentation, and gas analysis solutions for various industries, optimizing processes, and contributing to energy savings. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Clermont-Ferrand | 102 | 1995 |
| 34 | [ifm electronic France](https://www.tamtam.ai/c/ifm-electronic-france) (ifm.com)<br>Development and manufacturing of industrial sensors, control systems, and diagnostic solutions for diverse industries with high-quality German engineering. | Automation Machinery Manufacturing | 🇫🇷 Le Bourget-du-Lac | 100 | 1976 |
| 35 | [CGP](https://www.tamtam.ai/c/cgp) (omerin.com)<br>Specialized in designing and manufacturing specialty cables for aerospace and defense sectors, a subsidiary of OMERIN Group Stay updated on OMERIN's page | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Saint-Chamond | 99 |  |
| 36 | [SAIREM](https://www.tamtam.ai/c/sairem) (sairem.com)<br>Specializes in microwave and radio-frequency equipment for various industries, offering generators, components, and technologies for optimized applications in research and commercial sectors | Machinery Manufacturing | 🇫🇷 Décines-Charpieu | 99 | 1978 |
| 37 | [EDF ENR PWT (Photowatt)](https://www.tamtam.ai/c/edf-enr-pwt-photowatt) (photowatt.com)<br>Design and manufacture of photovoltaic wafers, cells, and modules with advanced technology and strict quality control in France. | Renewable Energy Semiconductor Manufacturing | 🇫🇷 Bourgoin-Jallieu | 96 | 1979 |
| 38 | [ITEN](https://www.tamtam.ai/c/iten) (iten.com)<br>French industrial solid-state energy storage solutions. Leader in development and production, mastering design and manufacturing for compact, powerful devices for electronic systems. | Semiconductor Manufacturing | 🇫🇷 Dardilly | 91 | 2011 |
| 39 | [IC'Alps](https://www.tamtam.ai/c/ic-alps) (icalps.com)<br>ASIC SoC development partner, managing design and production supply chain for integrated circuits across multiple demanding sectors. | Semiconductor Manufacturing | 🇫🇷 Meylan | 90 | 2018 |
| 40 | [MICROOLED](https://www.tamtam.ai/c/microoled) (microoled.net)<br>The company specializes in delivering OLED Near-Eye Displays for various products with high definition, low power consumption, and excellent image quality | Semiconductor Manufacturing | 🇫🇷 Grenoble | 85 | 2007 |
| 41 | [CEDRAT TECHNOLOGIES](https://www.tamtam.ai/c/cedrat-technologies) (cedrat-technologies.com)<br>Designs and manufactures high-performance piezoelectric and magnetic actuators, sensors, and mechatronic systems for aerospace and defense applications. | Industrial Machinery Manufacturing | 🇫🇷 Meylan | 84 | 1977 |
| 42 | [GCK EMI](https://www.tamtam.ai/c/gck-emi) (gck-emi.com)<br>Design and production of advanced embedded electronics and electromechanical components for mobility, including control units, power electronics, and industrial assemblies. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Brassac-les-Mines | 83 |  |
| 43 | [Tronics Microsystems](https://www.tamtam.ai/c/tronics-microsystems) (tronics.tdk.com)<br>Provider of inertial MEMS sensors including accelerometers, gyroscopes, and vibration sensors for motion sensing and condition monitoring. | Computers and Electronics Manufacturing | 🇫🇷 Crolles | 81 | 1997 |
| 44 | [SCAIME](https://www.tamtam.ai/c/scaime) (scaime.com)<br>Specializes in weighing systems and fiber optic measurement for industry and structural monitoring with global production and distribution network. | Measuring and Control Instrument Manufacturing | 🇫🇷 Juvigny | 81 | 1983 |
| 45 | [Duhamel](https://www.tamtam.ai/c/duhamel) (lumiplan.com)<br>The company specializes in designing, manufacturing, installing, and servicing communication systems for buses, coaches, and Light Rail Vehicles with a focus on customer service | Truck Transportation | 🇫🇷 Domène | 80 | 1973 |
| 46 | [FOLAN](https://www.tamtam.ai/c/folan) (folan.net)<br>Specialist in telecom solutions for fibre optic networks, data centres, and industry with custom engineering and manufacturing services. | Telecommunications | 🇫🇷 Rillieux-la-Pape | 79 | 1988 |
| 47 | [TECHCI Rhône-Alpes](https://www.tamtam.ai/c/techci-rhone-alpes) (techci.fr)<br>Manufacture of various printed circuit boards including multilayer and flexible types for aerospace, military, medical, automotive, and industrial sectors. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 St Genix Sur Guiers | 71 | 1983 |
| 48 | [Raydiall Automotive](https://www.tamtam.ai/c/raydiall-automotive) (raydiall.com)<br>Design and manufacture of high-speed data connectors, Fakra RF cable connectors, and electric vehicle power plugs for automotive industry. | Electrical Equipment Manufacturing | 🇫🇷 Voiron | 65 | 2012 |
| 49 | [Acoem France](https://www.tamtam.ai/c/acoem-france)<br>Enabling organizations to achieve balance between progress and preservation through AI-powered sensors, data solutions, and global presence Protecting businesses and conserving resources | Machinery Manufacturing | 🇫🇷 Limonest | 65 |  |
| 50 | [ASCOREL](https://www.tamtam.ai/c/ascorel) (ascorel.com)<br>A French company specializing in electronic safety and driving assistance systems for lifting equipment in various industries, with a focus on exports | Embedded Software Products | 🇫🇷 Pont-Évêque | 63 | 1989 |

## 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.

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Source: https://www.tamtam.ai/l/electronics-companies-auvergne-rhone-alpes
