This selection of electronics and semiconductor companies in Île-de-France includes large established groups and mid-sized firms. Their activities span from automotive technology with Valeo, which develops electrification and ADAS solutions, to public research in low-carbon energy by CEA. Other firms include SAGEMCOM, providing broadband internet solutions, and Bull, a leader in high-performance computing and AI. Mersen specializes in electrical specialties and advanced materials for high-tech industries.
The companies listed show a concentration of headquarters in Paris and its immediate suburbs, such as Bois-Colombes, Rueil-Malmaison, and Bezons. Their founding dates range from the late 19th century, like Mersen (1891) and Bosch France (1886), to more recent establishments such as SAGEMCOM (2008) and ADVANS Group (2000), indicating a mix of long-standing industrial presence and newer technological ventures.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 37,833 | ||||
| 2 | 19,468 | ||||
| 3 |
SAGEMCOMsagemcom.com
Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership. |
5,279 | |||
| 4 |
APC by Schneider Electricapc.com
Provides reliable, efficient, connected, and innovative products for IT equipment, ensuring accessibility and security for dynamic IT in a connected world. |
4,378 | |||
| 5 | 3,306 | ||||
| 6 |
Mersenmersen.com
Global expert in electrical specialties, advanced materials for high-tech industries. Custom-built solutions, key products for new technological challenges shaping tomorrow’s world. |
2,920 | |||
| 7 |
HORIBA Francehoriba.com
HORIBA France manufactures instruments to help individuals tackle all their challenges |
2,200 | |||
| 8 |
Radiallradiall.com
Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents. |
1,898 | |||
| 9 |
Asteelflashasteelflash.com
Provides electronic manufacturing services and supply-chain management solutions from new product introduction to mass production across diverse global technology markets through seventeen locations. |
1,878 | |||
| 10 | 1,469 | ||||
| 11 |
STMicroelectronics Francest.com
Design and manufacture semiconductor components, enabling smart mobility, efficient energy management, IoT deployment, and sustainable technology ecosystems. |
1,236 | |||
| 12 |
Vusionvusion.com
Develops AI-powered digitalization solutions for physical commerce, transforming stores into intelligent environments, improving operations, enabling e-commerce, and activating in-store retail media. |
1,113 | |||
| 13 |
Bosch Francebosch.fr
Leading global technology company with extensive manufacturing and research operations in France, specializing in diverse industrial and consumer sectors. |
1,087 | |||
| 14 |
ADVANS Groupadvans-group.com
Engineering firm specializing in electronic, software, and mechanical systems; handles projects or provides expertise in microelectronics, software development, data/AI, and mechanical engineering. |
1,040 | |||
| 15 |
SOURIAU-SUNBANK Connection Technologies by Eatonsouriau.com
An intelligent power management company focused on improving quality of life, protecting the environment, and helping customers manage power efficiently |
965 | |||
| 16 |
Exxeliaexxelia.com
Designing and manufacturing high-reliability passive components and precision subsystems for demanding markets like aviation, defense, and medical, meeting complex specifications. |
856 | |||
| 17 |
Linxenslinxens.com
Global electronics components provider for connectivity, tracking, and authentication across various sectors like telecom, finance, and IoT. |
719 | |||
| 18 |
L-Acousticsl-acoustics.com
Leading manufacturer of professional sound solutions founded in 1984 near Paris, with presence in over 80 countries and specializing in modern line array technology and multichannel sound systems |
700 | |||
| 19 | 681 | ||||
| 20 |
Samsung Electronics Francesamsung.com
Facilitation of business success through trusted partner networks, enabling companies to navigate major changes with smart professional connections. |
677 | |||
| 21 | 628 | ||||
| 22 |
CHAUVIN ARNOUX GROUPgroup.chauvin-arnoux.com
Design and manufacture of electrical measurement devices and quality control solutions for diverse industrial sectors including pharma, nuclear, and marine. |
614 | |||
| 23 | 603 | ||||
| 24 |
Telemecanique Sensorstelemecaniquesensors.com
A global sensor technology company with a focus on factory automation, providing expertise to help customers achieve optimal machine performance and reliability |
589 | |||
| 25 |
SES-imagotagses-imagotag.com
Provides smart digital labels and an IoT platform to retailers, connecting physical stores, automating processes, improving efficiency, and serving customers. |
560 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
LEAlea-networks.com
A global leader in broadband access and home networking solutions, offering xDSL splitters, network equipment, and HomePlugAV PLC adapters for easy home network setup |
545 | |||
| 27 |
ICAPE Groupicape-group.com
A global company in production of Printed Circuit Boards and Customized Technical Parts, with a strong online presence and ethical partnerships worldwide |
474 | |||
| 28 |
Elsys Designelsys-design.com
Designs embedded electronic systems, specializing in microelectronics, hardware, embedded software, and systems for diverse sectors like energy, space, and automotive. |
471 | |||
| 29 | 471 | ||||
| 30 |
Mitsubishi Electric Europe BV Francefr.mitsubishielectric.com
A global leader in manufacturing and selling electrical products and systems for various fields, using innovative technologies to enhance society worldwide |
412 | |||
| 31 |
Exail Technologies (EPA: EXA OTCQX: EXALF)exail-technologies.com
Delivers autonomous maritime drone systems and advanced navigation solutions for naval and defense customers, ensuring reliability, precision, and operational safety in critical missions. |
393 | |||
| 32 |
Vantiva Broadband & Videovantiva.com
Delivers industry-leading broadband, video, and IoT-driven smart systems. Combines software development, hardware design, and supply chain expertise for global connectivity solutions. |
392 | |||
| 33 |
IMPRIMERIE NATIONALE S.A.ingroupe.com
Provides secure identity solutions including electronic components, biometrics integration, polycarbonate cards, digital services, and complex printing for governments and businesses worldwide. |
328 | |||
| 34 | 313 | ||||
| 35 |
Devialetdevialet.com
An innovative acoustic engineering technology company focused on delivering high-fidelity sound experiences globally through revolutionary products and listening experiences |
299 | |||
| 36 |
JRIjri-mms.com
Develops temperature monitoring solutions for thermo-sensitive products in healthcare, food, and industry, utilizing IoT technology and offering metrology services. |
298 | |||
| 37 |
Pasqalpasqal.com
The company specializes in building programmable quantum simulators and computers using neutral atoms in optical tweezers for quantum information processing |
297 | |||
| 38 |
Alice & Bobalice-bob.com
Developing universal, fault-tolerant quantum computers using cat qubits technology, reducing hardware requirements for large-scale quantum computing by up to 200 times. |
271 | |||
| 39 |
3D PLUS3d-plus.com
Development and manufacturing of miniaturized electronic modules for space applications, including memory, power, cameras, and custom SiP solutions. |
220 | |||
| 40 |
Sequans Communicationssequans.com
Design and development of wireless cellular semiconductor solutions including chips, modules, and platforms optimized for IoT connectivity and performance. |
219 | |||
| 41 |
Médiane Systèmemedianesysteme.com
Specializes in custom secure real-time operating systems, private 5G networks, embedded AI, cybersecurity, and industrial network solutions. |
213 | |||
| 42 |
UMS - United Monolithic Semiconductorsums-rf.com
Designs and manufactures GaAs and GaN based RF and millimeter-wave integrated circuits and provides advanced foundry services for critical applications. |
210 | |||
| 43 |
MARECHAL ELECTRICmarechal.com
Design and manufacture of industrial electrical connectors and ATEX/IECEx certified products ensuring safety and reliability for demanding industries. |
206 | |||
| 44 |
LEACH INTERNATIONAL EUROPEleachint.com
High-technology company specializing in the design and manufacture of advanced electromechanical and electronic solutions for critical applications worldwide. |
199 | |||
| 45 | 195 | ||||
| 46 | 183 | ||||
| 47 |
EVERAXISeveraxis.com
A global multi-specialist in high-performance rotating solutions for demanding markets such as Defense, Space, Aerospace, Telecommunications, Energy, and Industrial sectors. |
172 | |||
| 48 |
Archosarchos.com
A pioneering consumer electronics company based in France, known for innovation in mobile solutions, AI, blockchains, and IoT networks |
170 | |||
| 49 |
COMATELEC SCHREDERfr.schreder.com
Design and supply of intelligent outdoor lighting solutions for smart cities, roads, tunnels, industry, and decorative urban illumination. |
164 | |||
| 50 |
SiPearlsipearl.com
Designs energy-efficient CPUs for supercomputers, AI, and data centers. These CPUs address security, defense, medical, energy, and climate challenges with reduced environmental impact. |
160 | |||
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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 12, 2026.
More company lists in Île-de-France
- The largest companies in Île-de-France 36,142
- Multinational companies in Île-de-France 6,028
- Professional services firms in Île-de-France 3,377
- SaaS companies in Île-de-France 2,859
- IT Services and IT Consulting companies in Île-de-France 2,776
- Companies with in-house R&D in Île-de-France 2,695
- IT services companies in Île-de-France 2,624
- Consulting firms in Île-de-France 2,408
- Retail chains in Île-de-France 2,316
- Software Development companies in Île-de-France 1,992
- Business Consulting and Services companies in Île-de-France 1,904
- Financial services firms in Île-de-France 1,731
- Manufacturers in Île-de-France 1,515
- Law Practice companies in Île-de-France 1,366
- Subscription businesses in Île-de-France 1,359
- Education providers in Île-de-France 1,300
- Advertising Services companies in Île-de-France 1,264
- Financial Services companies in Île-de-France 1,197
- Marketing and communications agencies in Île-de-France 1,174
- Hardware manufacturers in Île-de-France 1,142
- Companies with a mobile app in Île-de-France 1,105
- Recruitment and staffing agencies in Île-de-France 1,014
- Public sector organisations in Île-de-France 993
- Technology, Information and Internet companies in Île-de-France 982
The same list elsewhere in France
- Electronics and semiconductor companies in France 846
- 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 the Isère department 70
- 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