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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).

🇫🇷 Île-de-France50 companiesUpdated Nov 12, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
1
Valeovaleo.com

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
CEAcea.fr

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 n/a
3
SAGEMCOMsagemcom.com

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 Electricapc.com

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
Bullbull.com

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
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.

Industrial Machinery Manufacturing 🇫🇷 Courbevoie 2,920 1891
7
HORIBA Francehoriba.com

HORIBA France manufactures instruments to help individuals tackle all their challenges

Measuring and Control Instrument Manufacturing 🇫🇷 Palaiseau 2,200 n/a
8
Radiallradiall.com

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
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.

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Saint-Cloud 1,878 n/a
10
LGMlgm.group

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 Francest.com

Design and manufacture semiconductor components, enabling smart mobility, efficient energy management, IoT deployment, and sustainable technology ecosystems.

Semiconductor Manufacturing 🇫🇷 Montrouge 1,236 1987
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.

Software Development 🇫🇷 Nanterre 1,113 1992
13
Bosch Francebosch.fr

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 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.

Engineering Services 🇫🇷 Cachan 1,040 2000
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

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Versailles 965 n/a
16
Exxeliaexxelia.com

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
Linxenslinxens.com

Global electronics components provider for connectivity, tracking, and authentication across various sectors like telecom, finance, and IoT.

Manufacturing 🇫🇷 Levallois-Perret 719 1988
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

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Marcoussis 700 1984
19
SELPselp.fr

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 Francesamsung.com

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 n/a
21
TTKttk.fr

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 GROUPgroup.chauvin-arnoux.com

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
ACOMEacome.com

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 Sensorstelemecaniquesensors.com

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-imagotagses-imagotag.com

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

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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

Computers and Electronics Manufacturing 🇫🇷 Puteaux 545 1999
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

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Fontenay-aux-Roses 474 1999
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.

Engineering Services 🇫🇷 Paris - Cachan 471 2000
29
VITECvitec.com

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 Francefr.mitsubishielectric.com

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)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.

Robotics Engineering 🇫🇷 Paris 393 1990
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.

Telecommunications 🇫🇷 Paris 392 n/a
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.

IT Services and IT Consulting 🇫🇷 Paris 328 1538
34
Citelcitel.fr

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
Devialetdevialet.com

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
JRIjri-mms.com

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
Pasqalpasqal.com

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 & 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.

Computer Hardware Manufacturing 🇫🇷 Paris 271 2020
39
3D PLUS3d-plus.com

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 Communicationssequans.com

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 Systèmemedianesysteme.com

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 Semiconductorsums-rf.com

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 ELECTRICmarechal.com

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 EUROPEleachint.com

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 n/a
45
Birdzbirdz.com

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
RIBERriber.com

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
EVERAXISeveraxis.com

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
Archosarchos.com

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 SCHREDERfr.schreder.com

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
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.

Semiconductor Manufacturing 🇫🇷 Maisons-Laffitte 160 2019

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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.

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