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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Soitecsoitec.com
A world leader in innovative semiconductor materials production for various electronics markets, striving for disruptive innovation with energy-efficient, competitive products |
1,935 | |||
| 2 |
CEA-Letileti-cea.com
Development of micro- and nanotechnologies for smart, energy-efficient, and secure industrial applications including healthcare, energy, and digital sectors. |
1,223 | |||
| 3 |
LYNREDlynred.com
Designs and manufactures high-quality infrared technologies for aerospace, defense, and commercial markets, including IR detectors for military and thermal imaging equipment. |
749 | |||
| 4 |
MAFELEC TEAMmafelec.com
Designs subassemblies and equipment for harsh environments, providing innovative solutions for various sectors like HMI, railway, industry, and defense. |
249 | |||
| 5 |
ULISlynred.com
Global leader in designing and manufacturing high quality infrared technologies for aerospace, defense, and commercial markets, with a vast portfolio of detectors |
243 | |||
| 6 |
Trixelltrixell.com
Innovative joint venture specializing in X-ray flat panel digital detectors for various medical radiology applications |
218 | |||
| 7 |
BioLogicbiologic.net
Design and manufacture of ultra-precise measurement instruments, including potentiostats and battery cyclers, for electrochemistry, material testing, and industrial battery product optimization. |
211 | |||
| 8 |
CEA Techcea-tech.fr
technology research unit developing ICT, energy, healthcare technologies, bridging research and business, providing access to key enabling technologies |
192 | |||
| 9 |
Dolphin Semiconductordolphin-semiconductor.com
Leading provider of semiconductor IP solutions, specializing in mixed-signal IP design targeting various markets and accelerating customer design cycles. |
187 | |||
| 10 |
Atral Groupatralgroup.com
Design and manufacture of advanced radio electronic security systems with long-lasting energy autonomy and certified remote monitoring services across Europe. |
181 | |||
| 11 |
EASii ICeasii-ic.com
Design and production of custom analog, digital, mixed-signal integrated circuits, electronic boards, FPGAs for various industries including aerospace and medical. |
127 | |||
| 12 | 103 | ||||
| 13 |
EDF ENR PWT (Photowatt)photowatt.com
Design and manufacture of photovoltaic wafers, cells, and modules with advanced technology and strict quality control in France. |
96 | |||
| 14 |
MICROOLEDmicrooled.net
The company specializes in delivering OLED Near-Eye Displays for various products with high definition, low power consumption, and excellent image quality |
85 | |||
| 15 |
CEDRAT TECHNOLOGIEScedrat-technologies.com
Designs and manufactures high-performance piezoelectric and magnetic actuators, sensors, and mechatronic systems for aerospace and defense applications. |
84 | |||
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| 16 |
Tronics Microsystemstronics.tdk.com
Provider of inertial MEMS sensors including accelerometers, gyroscopes, and vibration sensors for motion sensing and condition monitoring. |
81 | |||
| 17 |
Duhamellumiplan.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 |
80 | |||
| 18 |
Raydiall Automotiveraydiall.com
Design and manufacture of high-speed data connectors, Fakra RF cable connectors, and electric vehicle power plugs for automotive industry. |
65 | |||
| 19 |
ASCORELascorel.com
A French company specializing in electronic safety and driving assistance systems for lifting equipment in various industries, with a focus on exports |
63 | |||
| 20 |
MEMSCAPmemscap.com
Innovative provider of MEMS solutions for high-growth markets, enabling integration of MEMS technology to address technical and cost challenges |
59 | |||
| 21 |
UnitySCmerckgroup.com
Provider of advanced metrology and inspection equipment for semiconductor manufacturing, enhancing yield and process control globally. |
56 | |||
| 22 |
BH Technologies - Public Lighting & Waste Managementbh-technologies.com
This company develops innovative solutions for managing urban services, promoting efficiency, cost savings, environmental benefits, and improved quality of life in cities |
52 | |||
| 23 |
Allegro DVTallegrodvt.com
A leading provider of compliance test suites and hardware IPs for various video codecs chosen by major IC providers, OEMs, and broadcasters |
49 | |||
| 24 |
PYXALISpyxalis.com
Designs and produces high-performance imaging solutions, specializing in custom CMOS image sensors for diverse industries including medical, industrial, and aerospace applications. |
49 | |||
| 25 | 44 | ||||
| 26 |
MAATELmaatel.com
An electronic engineering company in France offering services from product design to production, specializing in industrial and health sectors certifications |
44 | |||
| 27 |
ECRIN Systemsecrin.com
A French SME specializing in industrial computing & embedded electronics, offering custom solutions, hardware platforms, integration services, and value-added distribution |
43 | |||
| 28 |
eLichenselichens.com
eLichens, founded in 2014, provides innovative air quality solutions using sensors and services for consumer electronics and industrial markets globally |
39 | |||
| 29 |
DIAMFABdiamfab.com
Synthesizes diamond for semiconductor industry applications including electric vehicles, high voltage networks, and hybrid aircraft to improve electrical performance and efficiency. |
38 | |||
| 30 |
SCINTIL Photonicsscintil-photonics.com
Development of integrated photonic system-on-chip solutions enabling high-density, high-bandwidth optical connectivity for large-scale AI GPU clusters. |
37 | |||
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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 1,457
- Companies with in-house R&D in the Isère department 304
- Manufacturers in the Isère department 178
- Multinational companies in the Isère department 174
- Hardware manufacturers in the Isère department 143
- Retail chains in the Isère department 100
- Software Development companies in the Isère department 90
- Professional services firms in the Isère department 87
- Public sector organisations in the Isère department 80
- Distributors and wholesalers in the Isère department 78
- IT services companies in the Isère department 75
- SaaS companies in the Isère department 72
- Contract manufacturers in the Isère department 68
- IT Services and IT Consulting companies in the Isère department 68
- Family-owned companies in the Isère department 61
- Industrial Machinery Manufacturing companies in the Isère department 58
- Consulting firms in the Isère department 57
- Construction companies in the Isère department 52
- Pharmaceutical companies in the Isère department 47
- Education providers in the Isère department 46
- Medical device companies in the Isère department 43
- Critical infrastructure operators in the Isère department 41
- Energy companies in the Isère department 41
- Chemical companies in the Isère department 40
The same list elsewhere in France
- Electronics and semiconductor companies in France 846
- Electronics and semiconductor companies in Île-de-France 230
- Electronics and semiconductor companies in Auvergne-Rhône-Alpes 154
- Electronics and semiconductor companies in Occitanie 89
- Electronics and semiconductor companies in Provence-Alpes-Côte d'Azur 79
- Electronics and semiconductor companies in Grand Est 56
- Electronics and semiconductor companies in Nouvelle-Aquitaine 53
- Electronics and semiconductor companies in the Haute-Garonne department 49
- Electronics and semiconductor companies in the Bouches-du-Rhône department 45
- Electronics and semiconductor companies in the Essonne department 44
- Electronics and semiconductor companies in Brittany 38
- Electronics and semiconductor companies in Pays de la Loire 38
- Electronics and semiconductor companies in the Hauts-de-Seine department 35
- Electronics and semiconductor companies in the Gironde department 32
- Electronics and semiconductor companies in Hauts-de-France 27
- Electronics and semiconductor companies in the Yvelines department 26
- Electronics and semiconductor companies in the Rhône department 25
- Electronics and semiconductor companies in Paris 54
- Electronics and semiconductor companies in Grenoble 28