# List of electronics and semiconductor companies in the Isère department
Tamtam tracks 70 electronics and semiconductor companies headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by Soitec, CEA-Leti and LYNRED. Their median headcount is 84. Half of them were founded in 1997 or later. The most common headquarters are Grenoble (9), Moirans (3) and Montbonnot-Saint-Martin (3).
These electronics and semiconductor companies in Isère are mostly mid-sized firms and larger groups, with a few younger companies. Many are involved in semiconductor manufacturing, such as Soitec, which produces innovative semiconductor materials, and CEA-Leti, which develops micro- and nanotechnologies. LYNRED designs and manufactures infrared technologies, while Trixell specializes in X-ray flat panel digital detectors.
The data shows a strong concentration in semiconductor manufacturing and related electronics, with companies like ULIS and Dolphin Semiconductor also prominent. The presence of research entities like CEA Tech indicates a focus on technological development and industrial application.
🇫🇷 Isère · 30 companies · Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Soitec](https://www.tamtam.ai/c/soitec) (soitec.com)
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 | [CEA-Leti](https://www.tamtam.ai/c/cea-leti) (leti-cea.com)
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 |
| 3 | [LYNRED](https://www.tamtam.ai/c/lynred) (lynred.com)
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 |
| 4 | [MAFELEC TEAM](https://www.tamtam.ai/c/mafelec-team) (mafelec.com)
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 |
| 5 | [ULIS](https://www.tamtam.ai/c/ulis) (lynred.com)
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 |
| 6 | [Trixell](https://www.tamtam.ai/c/trixell) (trixell.com)
Innovative joint venture specializing in X-ray flat panel digital detectors for various medical radiology applications | Medical Equipment Manufacturing | 🇫🇷 Moirans | 218 | 1997 |
| 7 | [BioLogic](https://www.tamtam.ai/c/biologic) (biologic.net)
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 |
| 8 | [CEA Tech](https://www.tamtam.ai/c/cea-tech) (cea-tech.fr)
technology research unit developing ICT, energy, healthcare technologies, bridging research and business, providing access to key enabling technologies | Think Tanks | 🇫🇷 Grenoble | 192 | |
| 9 | [Dolphin Semiconductor](https://www.tamtam.ai/c/dolphin-semiconductor) (dolphin-semiconductor.com)
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 |
| 10 | [Atral Group](https://www.tamtam.ai/c/atral-group) (atralgroup.com)
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 |
| 11 | [EASii IC](https://www.tamtam.ai/c/easii-ic) (easii-ic.com)
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 |
| 12 | [Quobly](https://www.tamtam.ai/c/quobly) (quobly.io)
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 |
| 13 | [EDF ENR PWT (Photowatt)](https://www.tamtam.ai/c/edf-enr-pwt-photowatt) (photowatt.com)
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 |
| 14 | [MICROOLED](https://www.tamtam.ai/c/microoled) (microoled.net)
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 |
| 15 | [CEDRAT TECHNOLOGIES](https://www.tamtam.ai/c/cedrat-technologies) (cedrat-technologies.com)
Designs and manufactures high-performance piezoelectric and magnetic actuators, sensors, and mechatronic systems for aerospace and defense applications. | Industrial Machinery Manufacturing | 🇫🇷 Meylan | 84 | 1977 |
| 16 | [Tronics Microsystems](https://www.tamtam.ai/c/tronics-microsystems) (tronics.tdk.com)
Provider of inertial MEMS sensors including accelerometers, gyroscopes, and vibration sensors for motion sensing and condition monitoring. | Computers and Electronics Manufacturing | 🇫🇷 Crolles | 81 | 1997 |
| 17 | [Duhamel](https://www.tamtam.ai/c/duhamel) (lumiplan.com)
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 |
| 18 | [Raydiall Automotive](https://www.tamtam.ai/c/raydiall-automotive) (raydiall.com)
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 |
| 19 | [ASCOREL](https://www.tamtam.ai/c/ascorel) (ascorel.com)
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 |
| 20 | [MEMSCAP](https://www.tamtam.ai/c/memscap) (memscap.com)
Innovative provider of MEMS solutions for high-growth markets, enabling integration of MEMS technology to address technical and cost challenges | Semiconductor Manufacturing | 🇫🇷 Crolles | 59 | 1997 |
| 21 | [UnitySC](https://www.tamtam.ai/c/unitysc) (merckgroup.com)
Provider of advanced metrology and inspection equipment for semiconductor manufacturing, enhancing yield and process control globally. | Semiconductor Manufacturing | 🇫🇷 Montbonnot-Saint-Martin | 56 | 2016 |
| 22 | [BH Technologies - Public Lighting & Waste Management](https://www.tamtam.ai/c/bh-technologies-public-lighting-and-waste-management) (bh-technologies.com)
This company develops innovative solutions for managing urban services, promoting efficiency, cost savings, environmental benefits, and improved quality of life in cities | Computers and Electronics Manufacturing | 🇫🇷 Grenoble | 52 | 1998 |
| 23 | [Allegro DVT](https://www.tamtam.ai/c/allegro-dvt) (allegrodvt.com)
A leading provider of compliance test suites and hardware IPs for various video codecs chosen by major IC providers, OEMs, and broadcasters | Semiconductor Manufacturing | 🇫🇷 Montbonnot-Saint-Martin | 49 | 2003 |
| 24 | [PYXALIS](https://www.tamtam.ai/c/pyxalis) (pyxalis.com)
Designs and produces high-performance imaging solutions, specializing in custom CMOS image sensors for diverse industries including medical, industrial, and aerospace applications. | Semiconductor Manufacturing | 🇫🇷 Moirans | 49 | 2010 |
| 25 | [Enlaps](https://www.tamtam.ai/c/enlaps) (enlaps.io)
A French BtoB scale-up offers a camera connected to a SaaS platform for remote project monitoring, tourism, events, real estate, and research through integrated hardware and software technology | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Montbonnot-Saint-Martin | 44 | 2015 |
| 26 | [MAATEL](https://www.tamtam.ai/c/maatel) (maatel.com)
An electronic engineering company in France offering services from product design to production, specializing in industrial and health sectors certifications | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Moirans | 44 | 1976 |
| 27 | [ECRIN Systems](https://www.tamtam.ai/c/ecrin-systems) (ecrin.com)
A French SME specializing in industrial computing & embedded electronics, offering custom solutions, hardware platforms, integration services, and value-added distribution | IT Services and IT Consulting | 🇫🇷 Crolles | 43 | 1984 |
| 28 | [eLichens](https://www.tamtam.ai/c/elichens) (elichens.com)
eLichens, founded in 2014, provides innovative air quality solutions using sensors and services for consumer electronics and industrial markets globally | Computers and Electronics Manufacturing | 🇫🇷 Grenoble | 39 | 2014 |
| 29 | [DIAMFAB](https://www.tamtam.ai/c/diamfab) (diamfab.com)
Synthesizes diamond for semiconductor industry applications including electric vehicles, high voltage networks, and hybrid aircraft to improve electrical performance and efficiency. | Semiconductor Manufacturing | 🇫🇷 Grenoble | 38 | 2019 |
| 30 | [SCINTIL Photonics](https://www.tamtam.ai/c/scintil-photonics) (scintil-photonics.com)
Development of integrated photonic system-on-chip solutions enabling high-density, high-bandwidth optical connectivity for large-scale AI GPU clusters. | Semiconductor Manufacturing | 🇫🇷 Grenoble | 37 | 2018 |
## 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)
- [Manufacturers in the Isère department](https://www.tamtam.ai/l/manufacturers-isere) (178)
- [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)
- [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
- [Electronics and semiconductor companies in France](https://www.tamtam.ai/l/electronics-companies-france) (846)
- [Electronics and semiconductor companies in Île-de-France](https://www.tamtam.ai/l/electronics-companies-ile-de-france) (230)
- [Electronics and semiconductor companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/electronics-companies-auvergne-rhone-alpes) (154)
- [Electronics and semiconductor companies in Occitanie](https://www.tamtam.ai/l/electronics-companies-occitanie) (89)
- [Electronics and semiconductor companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/electronics-companies-provence-alpes-cote-dazur) (79)
- [Electronics and semiconductor companies in Grand Est](https://www.tamtam.ai/l/electronics-companies-grand-est) (56)
- [Electronics and semiconductor companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/electronics-companies-nouvelle-aquitaine) (53)
- [Electronics and semiconductor companies in the Haute-Garonne department](https://www.tamtam.ai/l/electronics-companies-haute-garonne) (49)
- [Electronics and semiconductor companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/electronics-companies-bouches-du-rhone) (45)
- [Electronics and semiconductor companies in the Essonne department](https://www.tamtam.ai/l/electronics-companies-essonne) (44)
- [Electronics and semiconductor companies in Brittany](https://www.tamtam.ai/l/electronics-companies-brittany) (38)
- [Electronics and semiconductor companies in Pays de la Loire](https://www.tamtam.ai/l/electronics-companies-pays-de-la-loire) (38)
- [Electronics and semiconductor companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/electronics-companies-hauts-de-seine) (35)
- [Electronics and semiconductor companies in the Gironde department](https://www.tamtam.ai/l/electronics-companies-gironde) (32)
- [Electronics and semiconductor companies in Hauts-de-France](https://www.tamtam.ai/l/electronics-companies-hauts-de-france) (27)
- [Electronics and semiconductor companies in the Yvelines department](https://www.tamtam.ai/l/electronics-companies-yvelines) (26)
- [Electronics and semiconductor companies in the Rhône department](https://www.tamtam.ai/l/electronics-companies-rhone) (25)
- [Electronics and semiconductor companies in Paris](https://www.tamtam.ai/l/electronics-companies-paris) (54)
- [Electronics and semiconductor companies in Grenoble](https://www.tamtam.ai/l/electronics-companies-grenoble) (28)
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Source: https://www.tamtam.ai/l/electronics-companies-isere