These Marseille-based companies focus on in-house research and development. They are primarily large institutions in higher education and healthcare, complemented by mid-sized firms in engineering, software, and specialized industrial services. Among them, Aix-Marseille University educates students and conducts research, while APHM provides comprehensive public healthcare and research. Onet Technologies specializes in nuclear engineering services, and Enovacom develops healthcare software for data exchange.
A notable characteristic of these companies is their strong presence in the public and semi-public sectors, particularly in education and health. This concentration indicates a focus on public service and foundational research within the local R&D landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Aix-Marseille Universityuniv-amu.fr
Educates over 80,000 students, conducts intensive research, and fosters innovation across numerous campuses, playing a key role in regional and international development. |
7,393 | |||
| 2 |
APHM (Assistance Publique - Hopitaux de Marseille)fr.ap-hm.fr
Public university hospitals providing comprehensive care, training, research, and prevention, with advanced medical specialties and technology for regional and complex cases. |
6,190 | |||
| 3 | 2,940 | ||||
| 4 |
Onet Technologiesonet.fr
Expertise in nuclear engineering and services for reactor maintenance, dismantling, decommissioning, waste management, and training within the nuclear industry lifecycle. |
2,071 | |||
| 5 |
Hôpital Européen Marseillehopital-europeen.fr
Private nonprofit hospital in Marseille providing high-quality medical and surgical care with modern facilities and a focus on patient well-being. |
999 | |||
| 6 |
Institut Paoli-Calmettesinstitutpaolicalmettes.fr
A leading cancer center in Provence-Alpes-Côte d’Azur and Corsica, offering healthcare, research, and cancer education through its hospital, research center, and institute |
967 | |||
| 7 |
Free Profreepro.com
Provides telecommunications, cybersecurity, IT, and cloud solutions for all businesses, from small to large, including public organizations, ensuring data connectivity and security. |
630 | |||
| 8 |
FORACO INTERNATIONAL SAforaco.com
A global mineral drilling services company offering comprehensive and reliable services in mining and water projects across 23 countries |
548 | |||
| 9 |
Enovacomenovacom.com
A healthcare software company dedicated to enabling secure data exchange, integration, process management, and interoperability for healthcare organizations through advanced solutions |
521 | |||
| 10 |
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 | |||
| 11 |
Aix-Marseille Université (AMU)univ-amu.fr
Aix-Marseille University is a large French-speaking university with 80,000 students, 8,000 staff, 5 campuses, and strong research infrastructure |
338 | |||
| 12 |
Capsumcapsum.com
This company specializes in co-creating emotionally-charged skincare, makeup, and haircare products using microfluidics technology, with a focus on sustainability and innovation |
252 | |||
| 13 |
Seres Technologiesseres-technologies.com
Specializes in risk management, complex systems design, and R&D, supporting industries like mobility, defense, and energy with comprehensive safety and security solutions. |
220 | |||
| 14 |
Innate Pharmainnate-pharma.com
A global biotech company focused on developing therapeutic antibodies to harness the immune system for fighting cancer and improving treatment outcomes |
176 | |||
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. | |||||
| 15 |
Laboratoire d'Astrophysique de Marseillelam.fr
Astrophysics research unit in Marseille, France, comprising researchers, doctoral and post-doctoral scholars, engineers, technicians, and administrative staff |
139 | |||
| 16 |
Mailinblackmailinblack.com
A major player in IT, offering intelligent solutions to enhance digital exchanges for businesses and public organizations through email management and signature creation |
134 | |||
| 17 |
Natural Solutionsnatural-solutions.eu
An innovative company bridging the gap between environmental scientists and software engineers, focusing on data acquisition, storage, analysis, and visualization |
118 | |||
| 18 |
IM2NP CNRS UMR 7334im2np.fr
Established in 2008, IM2NP is a multidisciplinary research institute specializing in advanced materials, integrated electronics, and nanoscience with 300 staff members |
118 | |||
| 19 |
Provepharmprovepharm.com
Develops, manufactures, and markets hospital products including antidotes and dyes, leveraging mature molecules to enhance clinical practices for healthcare professionals. |
117 | |||
| 20 |
Volta Medicalvolta-medical.com
AI-driven software for cardiac electrophysiology assisting physicians with real-time analysis of abnormal electrograms during complex atrial fibrillation ablation procedures using deep learning algorithms. |
114 | |||
| 21 |
CCEIccei-pool.com
Manufacturer of pool equipment for 50 years, offering LED pool lighting, automatic water treatment, and automation systems Products sold globally through various subsidiaries |
108 | |||
| 22 |
Cybernetixten.com
A provider of surveillance and robotics solutions for the fast-changing energy industry, focusing on improving economics, quality, safety, and reducing carbon footprint |
95 | |||
| 23 |
SHARK Helmetsshark-helmets.com
A leading French brand specializing in high-performance, safety-focused motorcycle helmets, innovating to enhance the joy and freedom of two-wheeled riding worldwide |
80 | |||
| 24 |
Traxenstraxens.com
Traxens offers premium freight tracking technology for international supply chain visibility, optimizing cargo security, integrity, and reliability for cost-effective shipping |
80 | |||
| 25 |
Enogiaenogia.com
ENOGIA specializes in compact, durable micro-turbomachinery for heat-to-electricity conversion, offering ORC modules and air compressors for hydrogen mobility |
79 | |||
| 26 |
DEELUXEdeeluxe.fr
French brand offering trendy clothing, shoes, and accessories for men, women, and kids inspired by traditional jeanswear and streetwear with a focus on quality and affordability |
77 | |||
| 27 |
TJC Grouptjc-group.com
Specializing in SAP Data Archiving, ILM, Legacy System Decommissioning, and Global Tax Compliance, preparing data for SAP S/4HANA migration with expert consultancy services |
68 | |||
| 28 |
DEVISUBOXdevisubox.com
A global leader in real-time construction site monitoring, providing innovative photobox technology with autonomous capabilities and UltraHD timelapse films |
63 | |||
| 29 |
Beautynailsbeautynails.com
A French company specializing in creating, manufacturing, and distributing nail products, as well as providing training for nail technicians worldwide |
61 | |||
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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 11, 2026.
More company lists in Marseille
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- Critical infrastructure operators in Marseille 44
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The same list elsewhere in France
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