These French companies are primarily involved in electronics, telecommunications, and IT services, with a strong presence in automotive technology, semiconductor manufacturing, and industrial electronics. The list includes a mix of large established groups like Valeo, which develops automotive technology solutions, and CEA, a public body conducting research in energy and IT. Mid-sized firms such as SAGEMCOM, providing broadband and entertainment solutions, and Soitec, a leader in semiconductor materials, are also prominent.
A notable pattern is the concentration of headquarters in the Paris region, including Paris itself, Bois-Colombes, Rueil-Malmaison, and Bezons. Companies like Bull, a global leader in high-performance computing, and Socomec Group, specializing in low voltage electrical networks, highlight the diverse yet interconnected nature of the electronics and IT sectors represented.
| # | 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 |
Socomec Groupsocomec.com
Established in 1922, this independent industrial group specializes in ensuring the availability, control, and safety of low voltage electrical networks worldwide, generating a turnover of 725 M€ in 2022 |
3,166 | |||
| 7 |
ACTIA Groupactia.com
Designs, manufactures, and operates high-tech electronic systems for demanding sectors: land mobility, aerospace, space, and energy worldwide, focusing on connectivity, safety, and performance. |
3,066 | |||
| 8 |
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 | |||
| 9 |
HORIBA Francehoriba.com
HORIBA France manufactures instruments to help individuals tackle all their challenges |
2,200 | |||
| 10 |
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 | |||
| 11 |
Radiallradiall.com
Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents. |
1,898 | |||
| 12 |
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 | |||
| 13 |
IN Groupeingroupe.com
Provides identity solutions, secure digital services integrating electronics and biometrics for states, citizens, and businesses, ensuring digital sovereignty. |
1,852 | |||
| 14 | 1,469 | ||||
| 15 |
Vantivavantiva.com
Global technology leader providing broadband, video, and IoT smart systems, connecting people worldwide. Specializes in hardware design and supply chain expertise. |
1,380 | |||
| 16 |
SERMA Groupserma.com
An independent, international platform specializing in electronics solutions and services for high-stress environments, offering expertise in 5 core business lines |
1,268 | |||
| 17 |
STMicroelectronics Francest.com
Design and manufacture semiconductor components, enabling smart mobility, efficient energy management, IoT deployment, and sustainable technology ecosystems. |
1,236 | |||
| 18 |
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 | |||
| 19 |
ALL Circuitsallcircuits.com
Leading EMS provider specializing in automotive and industrial manufacturing, offering high-quality electronics design, industrialization, and manufacturing services globally with a strong focus on innovation and quality |
1,154 | |||
| 20 |
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 | |||
| 21 |
Amphenol FCiamphenol-fci-besancon.com
Design and manufacture high-quality connectors in telecommunications, consumer electronics, data storage, industry, and automotive sectors with full in-house production. |
1,097 | |||
| 22 |
Bosch Francebosch.fr
Leading global technology company with extensive manufacturing and research operations in France, specializing in diverse industrial and consumer sectors. |
1,087 | |||
| 23 |
THALES AVS FRANCE SAS
Design and manufacture of advanced avionics and vision systems for aerospace applications, enhancing pilot situational awareness and safety. |
1,067 | |||
| 24 |
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 | |||
| 25 |
LACROIX - Electronicslacroix-electronics.com
Design and manufacture embedded electronics for diverse solutions, combining R&D with Industry 4.0 manufacturing in automotive, industrial, and healthcare sectors. |
1,039 | |||
| 26 |
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 | |||
| 27 |
Sercelsercel.com
Leading provider of high-standard subsurface measurement and data solutions for natural resources, infrastructure monitoring, energy transition, and defense sectors since 1956. |
942 | |||
| 28 |
NSE Groupense-groupe.com
Industrial company providing tailored engineering, wiring, integration, maintenance, and repair solutions for defense, aerospace, transport, and consumer electronics. |
911 | |||
| 29 |
CORDON GROUPcordongroup.com
Provides electronic product maintenance, repair, logistics, manufacturing, and engineering across 40 sites in 12 countries for various partners. |
907 | |||
| 30 |
Exxeliaexxelia.com
Designing and manufacturing high-reliability passive components and precision subsystems for demanding markets like aviation, defense, and medical, meeting complex specifications. |
856 | |||
| 31 |
CAHORSgroupe-cahors.com
Provides global solutions and equipment for medium and low voltage distribution networks, fluids, and communication networks worldwide. |
750 | |||
| 32 |
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 | |||
| 33 |
Crouzetcrouzet.com
A manufacturer providing customized mechatronic components for aerospace, transportation, energy, and machinery industries Specializing in automation, motion, sensors, controls, and instrumentation solutions |
721 | |||
| 34 |
Linxenslinxens.com
Global electronics components provider for connectivity, tracking, and authentication across various sectors like telecom, finance, and IoT. |
719 | |||
| 35 |
éolaneeolane.com
ceased operations in France and Morocco, entered judicial liquidation, with selected activities acquired by Cicor Group, an independent electronic manufacturing services provider. |
717 | |||
| 36 |
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 | |||
| 37 | 681 | ||||
| 38 |
Samsung Electronics Francesamsung.com
Facilitation of business success through trusted partner networks, enabling companies to navigate major changes with smart professional connections. |
677 | |||
| 39 |
Marquardt Tunisiamarquardt.com
Manufactures electromechanical, electronic switches and switching systems for automotive, household appliances, industrial applications, and power tools; specializing in operating components, vehicle access, driver authorization, and battery management systems. |
670 | |||
| 40 | 628 | ||||
| 41 |
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 | |||
| 42 |
EFI Automotiveefiautomotive.com
Develops mechatronic solutions for engine, transmission, and chassis applications, including sensors, actuators, and smart modules for leading automakers worldwide. |
609 | |||
| 43 | 603 | ||||
| 44 |
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 | |||
| 45 |
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 | |||
| 46 | 557 | ||||
| 47 |
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 | |||
| 48 |
Delta Dore Groupdeltadore.fr
Designing and manufacturing smart home technology, enabling people to manage energy consumption, improve comfort, and reduce environmental impact through innovative solutions. |
535 | |||
| 49 |
LACROIXlacroix-group.com
Develops and manufactures electronic equipment and connected IoT solutions to create sustainable, safer environments, addressing challenges in various sectors including automotive, industrial, and smart infrastructure. |
531 | |||
| 50 |
Photonisexosens.com
Photonis part of Exosens creates cutting-edge photo-detection and low light imaging technologies for defense, nuclear safety, life science, and industrial applications worldwide |
523 | |||
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. | |||||
| 51 |
Distech Controlsdistech-controls.com
provides innovative building automation technologies and services enhancing health, efficiency, and sustainability across multiple global market segments |
507 | |||
| 52 |
Amphenol SOCAPEXamphenol-socapex.com
Designs and manufactures reliable, innovative interconnection solutions for harsh environments, specializing in electrical and fiber optic connectors, contacts, accessories, and cabling. |
501 | |||
| 53 |
HENSOLDT in Francehensoldt.net
Manufactures and maintains critical electronic products, cyber security equipment, and energy solutions for aerospace, defence, energy, and transport sectors in France. |
501 | |||
| 54 |
LUMIBIRD : the specialist in laser technologieslumibird.com
Company designs, manufactures, and markets high-performance lasers for industrial, scientific, medical, and defense markets globally, leveraging 50 years of experience in laser technologies. |
497 | |||
| 55 |
Nicomaticnicomatic.com
Develops, manufactures, and sells micro-connectors for aerospace, defense, medical, and production industries, offering customized, innovative solutions with short lead times. |
484 | |||
| 56 |
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 | |||
| 57 |
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 | |||
| 58 | 471 | ||||
| 59 |
SERMA Ingénierieserma-ingenierie.com
Design, production, maintenance, and testing of embedded electronic boards with expertise in aeronautics and safety engineering services. |
460 | |||
| 60 |
Exail - Defense & Securityexail.com
Development of advanced robotics, automated systems, and simulation technologies for defense, maritime, aerospace, energy, and industrial sectors. |
455 | |||
| 61 |
SPHEREAspherea.com
Designs, develops, and delivers advanced test and measurement solutions, including optronics, integrated systems, diagnostics, and harness testing, for various industries globally. |
449 | |||
| 62 |
Selha Groupselhagroup.com
Specializing in electronics solutions for various industries, offering industrialization, manufacturing, and design services tailored to customer needs with over 50 years of experience |
440 | |||
| 63 |
Axon' Cable Groupaxon-cable.com
Design and manufacture custom electrical connections, cables, and connectors for harsh environments across automotive, aerospace, defense, medical, and industrial sectors. |
438 | |||
| 64 |
CMR Groupcmr-group.com
Specializing in sensors and automation systems for diesel engines, CMR offers control solutions in energy, industry, and marine sectors, focusing on sustainability and ethical practices |
428 | |||
| 65 |
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 | |||
| 66 |
Centum T&Scentumelectronics.com
Designs, industrializes, and produces electronic systems and embedded software for customers in various industries, including aerospace, defense, and automotive. |
407 | |||
| 67 |
Numonyxmicron.com
Numonyx designs and manufactures integrated non-volatile memory technologies for cellular and embedded markets, offering high density and low power solutions globally |
401 | |||
| 68 |
TRONICOtronico-agon.com
Design, integrate electronic systems for high added-value equipment across its lifecycle. Also develops complex electronically-dominant systems as an Original Design Manufacturer. |
395 | |||
| 69 |
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 | |||
| 70 |
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 | |||
| 71 |
Matra Electroniquematra-electronique.com
Design and manufacture electronic boards tailored to defense, space, aeronautics, security, jamming, IoT, and greentech industry requirements. |
372 | |||
| 72 | 370 | ||||
| 73 |
FDIfdi-access.com
Manufacturer and designer of access control products for residential, collective, and tertiary sectors, managing projects from design to production. |
354 | |||
| 74 |
Guillemot Corporationguillemot.com
Design and manufacture interactive entertainment hardware and accessories under Hercules and Thrustmaster brands, distributing products worldwide with focus on growth markets. |
349 | |||
| 75 |
AUXITROL WESTONauxitrolweston.com
Global leader in aerospace sensors manufacturing, offering high precision solutions for aeronautics, defense, and industrial sectors with responsive aftersales support worldwide |
345 | |||
| 76 |
CLIclifrance.com
Distributes high-end aeronautical and industrial connectors and electronic components to professionals, serving various sectors including aerospace, defense, automotive, and medical industries. |
345 | |||
| 77 |
COGELECcogelec.fr
Manufacturer of wireless access control systems with remote management for multi-residential and social housing markets, leading in France. |
344 | |||
| 78 |
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 | |||
| 79 |
Amplitude Laseramplitude-laser.com
Design and manufacture of ultrafast solid-state and fiber lasers for scientific, medical, and industrial applications worldwide with global support. |
320 | |||
| 80 |
CAMECAcameca.com
The company specializes in supplying high-performance analytical instrumentation and metrology solutions for research, development, and production support worldwide |
314 | |||
| 81 | 313 | ||||
| 82 |
LACROIX - Environmentlacroix-environment.com
The company offers connected products for smart water, HVAC, and smart grids markets, along with services such as project studies and training |
305 | |||
| 83 |
Paragon IDparagon-id.com
A leader in identification solutions using RFID and NFC technologies, offering smart cards, tickets, labels, and tags to diverse markets worldwide |
305 | |||
| 84 |
Devialetdevialet.com
An innovative acoustic engineering technology company focused on delivering high-fidelity sound experiences globally through revolutionary products and listening experiences |
299 | |||
| 85 |
JRIjri-mms.com
Develops temperature monitoring solutions for thermo-sensitive products in healthcare, food, and industry, utilizing IoT technology and offering metrology services. |
298 | |||
| 86 |
Pasqalpasqal.com
The company specializes in building programmable quantum simulators and computers using neutral atoms in optical tweezers for quantum information processing |
297 | |||
| 87 | 292 | ||||
| 88 |
Hiolle Technologieshiolle-technologies.fr
Design, production, and on-site integration of custom cabled electrical equipment with services including modification, retrofit, and troubleshooting worldwide. |
290 | |||
| 89 |
HGH Infrared Systemshgh-infrared.com
Designs, develops, assembles, and sells optronic systems for industrial, civil, defense, and security applications, specializing in innovative infrared technology and advanced sensors. |
283 | |||
| 90 |
Exosensexosens.com
A European leader in high-end electro-optical technologies for defense and industrial applications with over 85 years of experience in developing detection and imaging solutions |
283 | |||
| 91 |
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 | |||
| 92 | 271 | ||||
| 93 |
Aventechaventech-e.com
Designs, industrializes, and produces critical high/low voltage electrical equipment for harsh environments, offering integrated solutions like shelters, skids, and industrial switchboards. |
267 | |||
| 94 |
MAFELEC TEAMmafelec.com
Designs subassemblies and equipment for harsh environments, providing innovative solutions for various sectors like HMI, railway, industry, and defense. |
249 | |||
| 95 |
COFIDUR EMScofidur-ems.com
Electrical and electronic manufacturing company located in Laval, France, specializing in producing electronic components and assemblies for various industries. |
246 | |||
| 96 |
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 | |||
| 97 |
ELEKTO x TMEalliance-electronics.com
Specializing in producing prototypes of small to medium series of high-value electronic cards, assemblies, and complex sub-assemblies |
243 | |||
| 98 | 236 | ||||
| 99 |
Vermonvermon.com
Designs, manufactures, and controls ultrasound transducers and arrays for medical and industrial applications, supporting diagnostic modalities with superior imaging performances. |
227 | |||
| 100 |
3D PLUS3d-plus.com
Development and manufacturing of miniaturized electronic modules for space applications, including memory, power, cameras, and custom SiP solutions. |
220 | |||
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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 France
- The largest companies in France 90,813
- Multinational companies in France 11,864
- Companies with in-house R&D in France 8,750
- Retail chains in France 7,526
- Manufacturers in France 6,697
- Professional services firms in France 6,611
- IT services companies in France 5,000
- IT Services and IT Consulting companies in France 4,943
- Hardware manufacturers in France 4,256
- Consulting firms in France 4,252
- Software Development companies in France 4,210
- Public sector organisations in France 4,006
- Family-owned companies in France 3,859
- Distributors and wholesalers in France 3,598
- Business Consulting and Services companies in France 3,392
- Financial services firms in France 3,095
- Critical infrastructure operators in France 2,721
- Real Estate companies in France 2,514
- Law Practice companies in France 2,454
- Subscription businesses in France 2,405
- Advertising Services companies in France 2,360
- Companies with a mobile app in France 2,269
- Retail companies in France 2,254
- Contract manufacturers in France 2,250
The same list elsewhere in France
- 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 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