| # | Company | Employees |
|---|---|---|
| 1 |
CS GROUPcs-soprasteria.com
Designs, builds, deploys, and maintains critical systems with innovative solutions and products, ensuring operational efficiency and security for client missions. |
2,968 |
| 2 |
Nextlanenextlane.com
Leading automotive business ecosystem. Providing cutting-edge software solutions. Empowering dealers and manufacturers. Driving business growth. Elevating customer experience. |
686 |
| 3 |
SIB [numérique, santé et secteur public]sib.fr
Innovative cooperative in digital health and public sector, serving 620+ institutions in modernizing their IT systems with a wide range of services and expertise |
499 |
| 4 |
BlueKanGobluekango.com
Offers customizable integrated QHSE software solutions with pre-configured applications, document management, and business intelligence, adaptable to diverse industries and organizational processes. |
169 |
| 5 |
Sekoiasekoia.com
Building a cyber operations platform for the AI era, unifying threat intelligence, detection, response, and exposure management, making advanced defense accessible. |
165 |
| 6 |
Siradelsiradel.com
A digital technology company, part of ENGIE Group, specializing in geodata production, 3D modeling, simulation, and AI for sustainable and digital transformation in various sectors |
150 |
| 7 |
AMIAD - French Agency for AI in Defencedefense.gouv.fr
Accelerate AI integration within the defense ministry to enhance military capabilities and ensure success in future warfare scenarios. |
129 |
| 8 |
IDnow Franceidnow.io
The company is a leading European provider of identity verification solutions, aiming to make the digital world safer with a comprehensive range of secure verification methods |
119 |
| 9 | 117 | |
| 10 |
LACROIX - Impulselacroix-impulse.com
A solutions provider specializing in accelerating industrial IoT development, offering services from design to manufacturing, IoT projects, and ADAS/AV solutions |
74 |
| 11 | 64 | |
| 12 |
AMA XpertEyeamaxperteye.com
Global provider of productivity applications for frontline workforce, using assisted Reality and AI for remote support, digitized work instructions, and inspections Promoting sustainability and innovation |
51 |
| 13 |
Cervvalcervval.com
The company develops interactive simulation tools to replicate complex issues and analyze ecosystems, aiding decision-making processes from various perspectives |
48 |
| 14 |
Script&Goscriptandgo.com
Provides mobile applications for capturing, processing, and sharing information to improve productivity and streamline fieldwork operations across industries. |
35 |
| 15 |
Orikio (ex OSO-AI)oso-ai.com
A deeptech startup in Ambient Intelligence developed a unique AI technology for remote monitoring of healthcare facilities, detecting abnormal sounds to alert caregivers |
34 |
| 16 |
Biosencybiosency.com
A French medical device company developing smart healthcare solutions, starting with a PPG sensor system for monitoring and preventing respiratory insufficiency |
30 |
| 17 |
Therenvatherenva.com
Develops advanced imaging software tools for cardiovascular procedures utilizing image processing, deep learning, and biomechanical simulation to assist in endovascular interventions |
27 |
| 18 |
Océane Consulting Data Managementdm.oceaneconsulting.com
Océane Consulting Data Management is a digital transformation company specializing in document, data, and digital solutions for clients in Europe and the Middle East |
26 |
| 19 |
VeoNumveonum.com
Rennes-based consultancy firm with a human-centric approach, offering tailored training, benefits, and a focus on R&D in AI, machine learning, and video streaming technologies Join our team! |
25 |
| 20 |
KERMAPkermap.com
Specializes in satellite image processing, geographic information production. Offers decision support, territory monitoring solutions, combining thematic expertise, artificial intelligence, and user-friendliness. |
22 |
| 21 |
MOOVENCYmoovency.com
A company founded in 2018 in Rennes specializing in quantifying musculoskeletal risks through innovative solutions and analysis tools |
20 |
| 22 |
Sensing Visionsensingvision.com
Sensing Vision optimizes building operating costs through non-intrusive, cost-effective measurement solutions, personalized insights, data security, using IoT, AI, cloud, and open data technologies |
19 |
| 23 |
Voxygenvoxygen.fr
Voxygen specializes in creating unique human-like speech synthesis solutions for personalized brand voices, advancing Voice Assistance and Voice commerce Stand out with your Brand Voice! |
14 |
| 24 |
Semsoft | LESTR solutionlestr.app
A French technology company specializing in data fusion and artificial intelligence, focusing on trade risk intelligence software to combat criminal activity in international trade |
14 |
| 25 | 8 | |
| 26 |
Energiency by epsaenergiency.com
Innovative industrial energy performance analytics software combining big data, cloud, and AI to help manufacturing companies achieve up to 20% energy savings without Capex |
6 |
| 27 |
BlueKanGo Internationalbluekango.com
Global provider of software solutions for quality, health, safety, and environment management helping organizations digitize processes to improve employee safety and sustainability. |
1 |
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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.
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