| # | Company | Employees |
|---|---|---|
| 1 |
DELKOfranchise.delko.fr
Offers car repair and maintenance services for individuals across all brands, and provides franchise opportunities for opening garages. |
371 |
| 2 |
Société Française de Garantiesfg.fr
Specializes in warranty extensions and after-sales services for household appliances, electronics, computers, and air-conditioning equipment sold to consumers. |
223 |
| 3 |
ALSEAMARalseamar-alcen.com
Develops, designs, operates, maintains high-performance underwater solutions for scientific research, offshore industries, and naval defense requirements, including gliders and acoustic systems. |
173 |
| 4 |
SPS IN Groupes-p-s.com
A provider of secure components for card and document manufacturers, offering contact and contactless solutions for identity cards, passports, and bankcards |
149 |
| 5 |
SFG Servicessfg.fr
SFG Services is a subsidiary specialized in repair services, offering innovative solutions and high-quality services to technical partners and consumers nationwide |
103 |
| 6 |
IRISOLARIS GROUPE
Independent renewable energy group; specializes in photovoltaic building construction, ground/rooftop solar power plants, metal frameworks, and self-consumption solutions. |
88 |
| 7 |
SIMAGECsimagec.com
A growing company for 12 years, specializing in medical packaging and clean room packaging, machine manufacturing, and distributing disinfectants for pharmaceutical industry |
63 |
| 8 | 61 | |
| 9 | 60 | |
| 10 |
SUNPARTNER Technologiessunpartnertechnologies.com
Innovative company in the south of France developing invisible photovoltaic solutions for consumer electronics, building, and transportation markets, making objects autonomous |
49 |
| 11 | 46 | |
| 12 |
THERYQtheryq-alcen.com
Innovative medical device company specializing in FLASH radiotherapy systems to expand radiotherapy use and improve cancer patients' treatments and quality of life |
42 |
| 13 |
AKTANTISaktantis.com
Cluster uniting over 300 players in deeptech fields, supporting innovation funding, digital transformation, and ecological transition in regional industries. |
32 |
| 14 |
Groupe Gaillardgroupegaillard.fr
The company develops, selects, and distributes a wide range of medical devices and equipment with the latest technologies for nearly 50 years |
29 |
| 15 |
NBS Semiconductornbstech.eu.com
A semiconductor industry solution provider offering equipment and solutions for wafer handling, packing, safety, traceability, and continuous product development |
23 |
| 16 |
LIDL Direction Régionale Provencelidl.fr
Since opening in 1989, the company has expanded across France, transforming into a daring and responsible chain of supermarkets focused on proximity and community |
19 |
| 17 |
Manhattan Hot Dogmanhattanhotdog.com
Import authentic New York hotdog concept, produce beef sausages and brioche buns, supply products and expertise across Europe. |
15 |
| 18 |
Energie Médicalenergie-medical.fr
National network specializing in sales and rental of medical equipment and devices for professionals and individuals, including home care and orthopedics. |
14 |
| 19 |
CROSSLUXcrosslux.eu
A French company designs and produces transparent photovoltaic glazing to turn sunlight into electricity, helping office buildings become more energy self-sufficient |
12 |
| 20 |
TERA Sensortera-sensor.com
Specializing in real-time air quality measurement, the company designs and produces advanced sensors for various industries, including transportation, home automation, and smart cities |
12 |
| 21 | 11 | |
| 22 |
NANOZnanoz-group.eu
Developing innovative gas sensors with breakthrough technology for various industries, healthcare, and environmental applications, offering accurate, energy-efficient, and compact solutions |
11 |
| 23 |
CERCLE OPTIMAcercleoptima.com
A network of independent legal metrology experts with over 15 years of experience in the field |
11 |
| 24 |
Versailles Beautéversaillesbeaute.fr
A French company specializing in developing, manufacturing, and distributing exceptional perfumes, offering personalized products and unique collector pieces worldwide since 2010 |
11 |
| 25 |
Proviridisproviridis.fr
Innovative solutions covering fuel distribution chain, offering natural gas, biomethane, electricity, and hydrogen Designs distribution stations for public and private sectors |
9 |
| 26 |
CEPRIM TECHNOLOGIESceprimtechnologies.com
Design and produce unique parts, small series, and special machines, specializing in sheet metal, welding, and metalwork with top-quality metrology tools |
9 |
| 27 |
LibreAirlibreair.fr
SaaS editor leveraging web and AI technologies to enhance user relationship management, offering solutions for user portals, AI chatbots, mobile applications, and official act publication. |
7 |
| 28 |
KBIMMOBILIERkbimmobilier.fr
Real estate company located in Rousset, France specializing in buying, selling, and managing residential and commercial properties |
3 |
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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 Oct 24, 2026.
The same list elsewhere in France
- The largest companies in France 75,805
- The largest companies in Île-de-France 30,863
- The largest companies in Auvergne-Rhône-Alpes 8,971
- The largest companies in Provence-Alpes-Côte d'Azur 5,836
- The largest companies in Occitanie 4,823
- The largest companies in Grand Est 4,506
- The largest companies in Nouvelle-Aquitaine 4,424
- The largest companies in Hauts-de-France 3,752
- The largest companies in Pays de la Loire 3,573
- The largest companies in Brittany 2,535
- The largest companies in Normandy 1,814
- The largest companies in Bourgogne-Franche-Comté 1,549
- The largest companies in Centre-Val de Loire 1,385
- The largest companies in Paris 19,499
- The largest companies in Lyon 2,238
- The largest companies in Marseille 1,366
- The largest companies in Toulouse 1,331
- The largest companies in Bordeaux 928
- The largest companies in Nantes 796
- The largest companies in Lille 731
- The largest companies in Boulogne-Billancourt 701
- The largest companies in Montpellier 633
- The largest companies in Aix-en-Provence 571
- The largest companies in Strasbourg 547