# The 50 largest electronics and semiconductor companies in Île-de-France

Tamtam tracks 230 electronics and semiconductor companies headquartered in Île-de-France. This list ranks the 50 largest by number of employees on LinkedIn, led by Valeo, CEA and SAGEMCOM. Their median headcount is 560. Half of them were founded in 1989 or later. The most common headquarters are Paris (12), Bezons (2) and Nanterre (2).

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.

🇫🇷 Île-de-France · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Valeo](https://www.tamtam.ai/c/valeo) (valeo.com)<br>Develops leading automotive technology solutions including electrification, ADAS, in-cabin experiences, and lighting, partnering with automakers and mobility players globally, leveraging AI for innovation. | Motor Vehicle Parts Manufacturing | 🇫🇷 Paris | 37,833 | 1923 |
| 2 | [CEA](https://www.tamtam.ai/c/cea) (cea.fr)<br>Public body conducting research, development, and innovation in low-carbon energy, defense, IT, and health, for national security and technological advancement. | Research Services | 🇫🇷 Paris | 19,468 |  |
| 3 | [SAGEMCOM](https://www.tamtam.ai/c/sagemcom) (sagemcom.com)<br>Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership. | Telecommunications | 🇫🇷 Bois-Colombes | 5,279 | 2008 |
| 4 | [APC by Schneider Electric](https://www.tamtam.ai/c/apc-by-schneider-electric) (apc.com)<br>Provides reliable, efficient, connected, and innovative products for IT equipment, ensuring accessibility and security for dynamic IT in a connected world. | IT Services and IT Consulting | 🇫🇷 Rueil-Malmaison | 4,378 | 1981 |
| 5 | [Bull](https://www.tamtam.ai/c/bull) (bull.com)<br>Global leader in high-performance computing, AI, and quantum innovation, designing hardware, software, and services to empower institutions and accelerate research. | IT Services and IT Consulting | 🇫🇷 Bezons | 3,306 | 1931 |
| 6 | [Mersen](https://www.tamtam.ai/c/mersen) (mersen.com)<br>Global expert in electrical specialties, advanced materials for high-tech industries. Custom-built solutions, key products for new technological challenges shaping tomorrow’s world. | Industrial Machinery Manufacturing | 🇫🇷 Courbevoie | 2,920 | 1891 |
| 7 | [HORIBA France](https://www.tamtam.ai/c/horiba-france) (horiba.com)<br>HORIBA France manufactures instruments to help individuals tackle all their challenges | Measuring and Control Instrument Manufacturing | 🇫🇷 Palaiseau | 2,200 |  |
| 8 | [Radiall](https://www.tamtam.ai/c/radiall) (radiall.com)<br>Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Aubervilliers | 1,898 | 1952 |
| 9 | [Asteelflash](https://www.tamtam.ai/c/asteelflash) (asteelflash.com)<br>Provides electronic manufacturing services and supply-chain management solutions from new product introduction to mass production across diverse global technology markets through seventeen locations. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Saint-Cloud | 1,878 |  |
| 10 | [LGM](https://www.tamtam.ai/c/lgm-velizy-villacoublay) (lgm.group)<br>The company offers technological, digital, and software engineering consulting, innovative solution design, and complex electronics production, supporting critical systems and industrial performance. | Engineering Services | 🇫🇷 Velizy-Villacoublay | 1,469 | 1991 |
| 11 | [STMicroelectronics France](https://www.tamtam.ai/c/stmicroelectronics-france) (st.com)<br>Design and manufacture semiconductor components, enabling smart mobility, efficient energy management, IoT deployment, and sustainable technology ecosystems. | Semiconductor Manufacturing | 🇫🇷 Montrouge | 1,236 | 1987 |
| 12 | [Vusion](https://www.tamtam.ai/c/vusion) (vusion.com)<br>Develops AI-powered digitalization solutions for physical commerce, transforming stores into intelligent environments, improving operations, enabling e-commerce, and activating in-store retail media. | Software Development | 🇫🇷 Nanterre | 1,113 | 1992 |
| 13 | [Bosch France](https://www.tamtam.ai/c/bosch-france) (bosch.fr)<br>Leading global technology company with extensive manufacturing and research operations in France, specializing in diverse industrial and consumer sectors. | Industrial Machinery Manufacturing | 🇫🇷 Saint-Ouen | 1,087 | 1886 |
| 14 | [ADVANS Group](https://www.tamtam.ai/c/advans-group) (advans-group.com)<br>Engineering firm specializing in electronic, software, and mechanical systems; handles projects or provides expertise in microelectronics, software development, data/AI, and mechanical engineering. | Engineering Services | 🇫🇷 Cachan | 1,040 | 2000 |
| 15 | [SOURIAU-SUNBANK Connection Technologies by Eaton](https://www.tamtam.ai/c/souriau-sunbank-connection-technologies-by-eaton) (souriau.com)<br>An intelligent power management company focused on improving quality of life, protecting the environment, and helping customers manage power efficiently | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Versailles | 965 |  |
| 16 | [Exxelia](https://www.tamtam.ai/c/exxelia) (exxelia.com)<br>Designing and manufacturing high-reliability passive components and precision subsystems for demanding markets like aviation, defense, and medical, meeting complex specifications. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Boulogne-Billancourt | 856 | 2009 |
| 17 | [Linxens](https://www.tamtam.ai/c/linxens) (linxens.com)<br>Global electronics components provider for connectivity, tracking, and authentication across various sectors like telecom, finance, and IoT. | Manufacturing | 🇫🇷 Levallois-Perret | 719 | 1988 |
| 18 | [L-Acoustics](https://www.tamtam.ai/c/l-acoustics) (l-acoustics.com)<br>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 | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Marcoussis | 700 | 1984 |
| 19 | [SELP](https://www.tamtam.ai/c/selp) (selp.fr)<br>High-tech company with 60 years experience in smart-cards production, offering global solutions for smart-cards issuers worldwide with international presence | IT Services and IT Consulting | 🇫🇷 Paris | 681 | 1956 |
| 20 | [Samsung Electronics France](https://www.tamtam.ai/c/samsung-electronics-france) (samsung.com)<br>Facilitation of business success through trusted partner networks, enabling companies to navigate major changes with smart professional connections. | IT Services and IT Consulting | 🇫🇷 Saint-Ouen | 677 |  |
| 21 | [TTK](https://www.tamtam.ai/c/ttk) (ttk.fr)<br>Design and manufacture advanced digital liquid leak detection systems with real-time location accuracy for data centers and critical infrastructure protection worldwide. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Paris | 628 | 1989 |
| 22 | [CHAUVIN ARNOUX GROUP](https://www.tamtam.ai/c/chauvin-arnoux-group) (group.chauvin-arnoux.com)<br>Design and manufacture of electrical measurement devices and quality control solutions for diverse industrial sectors including pharma, nuclear, and marine. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Asnières-Sur-Seine - France | 614 | 1893 |
| 23 | [ACOME](https://www.tamtam.ai/c/acome) (acome.com)<br>Specializes in high-tech cables for automotive and data networks markets, with a focus on cables, optical fibers, and synthesis tubes Operates internationally | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Paris | 603 | 1932 |
| 24 | [Telemecanique Sensors](https://www.tamtam.ai/c/telemecanique-sensors) (telemecaniquesensors.com)<br>A global sensor technology company with a focus on factory automation, providing expertise to help customers achieve optimal machine performance and reliability | Manufacturing | 🇫🇷 Paris | 589 | 1924 |
| 25 | [SES-imagotag](https://www.tamtam.ai/c/ses-imagotag) (ses-imagotag.com)<br>Provides smart digital labels and an IoT platform to retailers, connecting physical stores, automating processes, improving efficiency, and serving customers. | Software Development | 🇫🇷 Nanterre | 560 | 1992 |
| 26 | [LEA](https://www.tamtam.ai/c/lea) (lea-networks.com)<br>A global leader in broadband access and home networking solutions, offering xDSL splitters, network equipment, and HomePlugAV PLC adapters for easy home network setup | Computers and Electronics Manufacturing | 🇫🇷 Puteaux | 545 | 1999 |
| 27 | [ICAPE Group](https://www.tamtam.ai/c/icape-group) (icape-group.com)<br>A global company in production of Printed Circuit Boards and Customized Technical Parts, with a strong online presence and ethical partnerships worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Fontenay-aux-Roses | 474 | 1999 |
| 28 | [Elsys Design](https://www.tamtam.ai/c/elsys-design) (elsys-design.com)<br>Designs embedded electronic systems, specializing in microelectronics, hardware, embedded software, and systems for diverse sectors like energy, space, and automotive. | Engineering Services | 🇫🇷 Paris - Cachan | 471 | 2000 |
| 29 | [VITEC](https://www.tamtam.ai/c/vitec) (vitec.com)<br>Provider of IPTV, video streaming, and digital signage hardware and software enabling content capture, management, and delivery over IP networks. | IT Services and IT Consulting | 🇫🇷 F-92320 Châtillon | 471 | 1988 |
| 30 | [Mitsubishi Electric Europe BV France](https://www.tamtam.ai/c/mitsubishi-electric-europe-bv-france) (fr.mitsubishielectric.com)<br>A global leader in manufacturing and selling electrical products and systems for various fields, using innovative technologies to enhance society worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Rueil-Malmaison | 412 | 1991 |
| 31 | [Exail Technologies (EPA: EXA OTCQX: EXALF)](https://www.tamtam.ai/c/exail-technologies-epa-exa-otcqx-exalf) (exail-technologies.com)<br>Delivers autonomous maritime drone systems and advanced navigation solutions for naval and defense customers, ensuring reliability, precision, and operational safety in critical missions. | Robotics Engineering | 🇫🇷 Paris | 393 | 1990 |
| 32 | [Vantiva Broadband & Video](https://www.tamtam.ai/c/vantiva-broadband-and-video) (vantiva.com)<br>Delivers industry-leading broadband, video, and IoT-driven smart systems. Combines software development, hardware design, and supply chain expertise for global connectivity solutions. | Telecommunications | 🇫🇷 Paris | 392 |  |
| 33 | [IMPRIMERIE NATIONALE S.A.](https://www.tamtam.ai/c/imprimerie-nationale-s-a) (ingroupe.com)<br>Provides secure identity solutions including electronic components, biometrics integration, polycarbonate cards, digital services, and complex printing for governments and businesses worldwide. | IT Services and IT Consulting | 🇫🇷 Paris | 328 | 1538 |
| 34 | [Citel](https://www.tamtam.ai/c/citel) (citel.fr)<br>An industrial group specializing in engineering, manufacturing, and selling protection solutions for electrical networks, telecommunications, mobile equipment, PV and LED lighting systems worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Paris | 313 | 1937 |
| 35 | [Devialet](https://www.tamtam.ai/c/devialet) (devialet.com)<br>An innovative acoustic engineering technology company focused on delivering high-fidelity sound experiences globally through revolutionary products and listening experiences | Computers and Electronics Manufacturing | 🇫🇷 Paris | 299 | 2007 |
| 36 | [JRI](https://www.tamtam.ai/c/jri) (jri-mms.com)<br>Develops temperature monitoring solutions for thermo-sensitive products in healthcare, food, and industry, utilizing IoT technology and offering metrology services. | Measuring and Control Instrument Manufacturing | 🇫🇷 Bezons | 298 | 1845 |
| 37 | [Pasqal](https://www.tamtam.ai/c/pasqal) (pasqal.com)<br>The company specializes in building programmable quantum simulators and computers using neutral atoms in optical tweezers for quantum information processing | IT Services and IT Consulting | 🇫🇷 Palaiseau | 297 | 2019 |
| 38 | [Alice & Bob](https://www.tamtam.ai/c/alice-and-bob) (alice-bob.com)<br>Developing universal, fault-tolerant quantum computers using cat qubits technology, reducing hardware requirements for large-scale quantum computing by up to 200 times. | Computer Hardware Manufacturing | 🇫🇷 Paris | 271 | 2020 |
| 39 | [3D PLUS](https://www.tamtam.ai/c/3d-plus) (3d-plus.com)<br>Development and manufacturing of miniaturized electronic modules for space applications, including memory, power, cameras, and custom SiP solutions. | Space Research and Technology | 🇫🇷 Buc | 220 | 1995 |
| 40 | [Sequans Communications](https://www.tamtam.ai/c/sequans-communications) (sequans.com)<br>Design and development of wireless cellular semiconductor solutions including chips, modules, and platforms optimized for IoT connectivity and performance. | Semiconductor Manufacturing | 🇫🇷 Colombes | 219 | 2003 |
| 41 | [Médiane Système](https://www.tamtam.ai/c/mediane-systeme) (medianesysteme.com)<br>Specializes in custom secure real-time operating systems, private 5G networks, embedded AI, cybersecurity, and industrial network solutions. | Software Development | 🇫🇷 Le Pecq | 213 | 1989 |
| 42 | [UMS - United Monolithic Semiconductors](https://www.tamtam.ai/c/ums-united-monolithic-semiconductors) (ums-rf.com)<br>Designs and manufactures GaAs and GaN based RF and millimeter-wave integrated circuits and provides advanced foundry services for critical applications. | Semiconductor Manufacturing | 🇫🇷 Villebon-sur-Yvette | 210 | 1996 |
| 43 | [MARECHAL ELECTRIC](https://www.tamtam.ai/c/marechal-electric) (marechal.com)<br>Design and manufacture of industrial electrical connectors and ATEX/IECEx certified products ensuring safety and reliability for demanding industries. | Electrical Equipment Manufacturing | 🇫🇷 Saint Maurice | 206 | 1952 |
| 44 | [LEACH INTERNATIONAL EUROPE](https://www.tamtam.ai/c/leach-international-europe) (leachint.com)<br>High-technology company specializing in the design and manufacture of advanced electromechanical and electronic solutions for critical applications worldwide. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Sarralbe | 199 |  |
| 45 | [Birdz](https://www.tamtam.ai/c/birdz) (birdz.com)<br>Deploys large-scale connected solutions for cities, public services, industry, and the service sector, unifying territorial data into useful services for local authorities. | IT Services and IT Consulting | 🇫🇷 Saint-Maurice | 195 | 2000 |
| 46 | [RIBER](https://www.tamtam.ai/c/riber) (riber.com)<br>Supplier of molecular beam epitaxy equipment and evaporation sources for semiconductor research, industrial applications, and innovative device manufacturing worldwide. | Semiconductor Manufacturing | 🇫🇷 Bezons | 183 | 1964 |
| 47 | [EVERAXIS](https://www.tamtam.ai/c/everaxis) (everaxis.com)<br>A global multi-specialist in high-performance rotating solutions for demanding markets such as Defense, Space, Aerospace, Telecommunications, Energy, and Industrial sectors. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Le Plessis-Robinson | 172 | 2022 |
| 48 | [Archos](https://www.tamtam.ai/c/archos) (archos.com)<br>A pioneering consumer electronics company based in France, known for innovation in mobile solutions, AI, blockchains, and IoT networks | Computers and Electronics Manufacturing | 🇫🇷 Igny | 170 | 1988 |
| 49 | [COMATELEC SCHREDER](https://www.tamtam.ai/c/comatelec-schreder) (fr.schreder.com)<br>Design and supply of intelligent outdoor lighting solutions for smart cities, roads, tunnels, industry, and decorative urban illumination. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Villepinte | 164 | 1951 |
| 50 | [SiPearl](https://www.tamtam.ai/c/sipearl) (sipearl.com)<br>Designs energy-efficient CPUs for supercomputers, AI, and data centers. These CPUs address security, defense, medical, energy, and climate challenges with reduced environmental impact. | Semiconductor Manufacturing | 🇫🇷 Maisons-Laffitte | 160 | 2019 |

## 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](https://www.tamtam.ai/l/largest-companies-ile-de-france) (36,142)
- [Multinational companies in Île-de-France](https://www.tamtam.ai/l/multinational-companies-ile-de-france) (6,028)
- [Professional services firms in Île-de-France](https://www.tamtam.ai/l/professional-services-firms-ile-de-france) (3,377)
- [SaaS companies in Île-de-France](https://www.tamtam.ai/l/saas-companies-ile-de-france) (2,859)
- [IT Services and IT Consulting companies in Île-de-France](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-ile-de-france) (2,776)
- [Companies with in-house R&D in Île-de-France](https://www.tamtam.ai/l/r-and-d-companies-ile-de-france) (2,695)
- [IT services companies in Île-de-France](https://www.tamtam.ai/l/it-services-companies-ile-de-france) (2,624)
- [Consulting firms in Île-de-France](https://www.tamtam.ai/l/consulting-firms-ile-de-france) (2,408)
- [Retail chains in Île-de-France](https://www.tamtam.ai/l/retail-chains-ile-de-france) (2,316)
- [Software Development companies in Île-de-France](https://www.tamtam.ai/l/software-development-companies-ile-de-france) (1,992)
- [Business Consulting and Services companies in Île-de-France](https://www.tamtam.ai/l/business-consulting-and-services-companies-ile-de-france) (1,904)
- [Financial services firms in Île-de-France](https://www.tamtam.ai/l/financial-services-firms-ile-de-france) (1,731)
- [Manufacturers in Île-de-France](https://www.tamtam.ai/l/manufacturers-ile-de-france) (1,515)
- [Law Practice companies in Île-de-France](https://www.tamtam.ai/l/law-practice-companies-ile-de-france) (1,366)
- [Subscription businesses in Île-de-France](https://www.tamtam.ai/l/subscription-businesses-ile-de-france) (1,359)
- [Education providers in Île-de-France](https://www.tamtam.ai/l/education-companies-ile-de-france) (1,300)
- [Advertising Services companies in Île-de-France](https://www.tamtam.ai/l/advertising-services-companies-ile-de-france) (1,264)
- [Financial Services companies in Île-de-France](https://www.tamtam.ai/l/financial-services-companies-ile-de-france) (1,197)
- [Marketing and communications agencies in Île-de-France](https://www.tamtam.ai/l/marketing-agencies-ile-de-france) (1,174)
- [Hardware manufacturers in Île-de-France](https://www.tamtam.ai/l/hardware-companies-ile-de-france) (1,142)
- [Companies with a mobile app in Île-de-France](https://www.tamtam.ai/l/companies-with-mobile-app-ile-de-france) (1,105)
- [Recruitment and staffing agencies in Île-de-France](https://www.tamtam.ai/l/recruitment-agencies-ile-de-france) (1,014)
- [Public sector organisations in Île-de-France](https://www.tamtam.ai/l/public-sector-organisations-ile-de-france) (993)
- [Technology, Information and Internet companies in Île-de-France](https://www.tamtam.ai/l/technology-information-and-internet-companies-ile-de-france) (982)

## 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 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 the Isère department](https://www.tamtam.ai/l/electronics-companies-isere) (70)
- [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)

## The same list elsewhere

- [Electronics and semiconductor companies in the world](https://www.tamtam.ai/l/electronics-companies-in-the-world) (3,685)
- [Electronics and semiconductor companies in Europe](https://www.tamtam.ai/l/electronics-companies-in-europe) (1,821)

---

Source: https://www.tamtam.ai/l/electronics-companies-ile-de-france