# The 30 largest companies with in-house R&D in Grenoble
Tamtam tracks 91 companies with in-house R&D headquartered in Grenoble. This list ranks the 30 largest by number of employees on LinkedIn, led by CHU Grenoble Alpes, ARaymond and Grenoble Ecole de Management. Their median headcount is 182. Half of them were founded in 1994 or later.
These companies in Grenoble are primarily large and mid-sized organizations with significant in-house research and development capabilities. The list features a strong presence of institutions in healthcare, such as CHU Grenoble Alpes, a major regional hospital, and CEA-Leti, which develops micro- and nanotechnologies for healthcare. Education is also prominent, with Grenoble Ecole de Management offering business programs and Grenoble INP - UGA providing higher education in engineering.
A notable pattern is the concentration of advanced technology and research. ESRF - The European Synchrotron and ILL - Institut Laue Langevin are international science facilities offering advanced research tools. Verkor produces low-carbon batteries, and ARaymond designs fastening and fluid connection systems. Many companies, like Cegelec CEM in nuclear engineering, are involved in highly specialized industrial applications.
馃嚝馃嚪 Grenoble 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [CHU Grenoble Alpes](https://www.tamtam.ai/c/chu-grenoble-alpes) (chu-grenoble.fr)
Major regional hospital providing comprehensive medical, surgical, emergency care, and health research across multiple specialized disciplines and advanced technology. | Hospitals and Health Care | 馃嚝馃嚪 Grenoble | 3,812 | |
| 2 | [ARaymond](https://www.tamtam.ai/c/araymond) (araymond.com)
Design and manufacture of sustainable fastening, fluid connection, and integration systems for automotive, energy, healthcare, agriculture, and construction industries worldwide through collaborative innovation. | Manufacturing | 馃嚝馃嚪 Grenoble | 2,155 | 1865 |
| 3 | [Grenoble Ecole de Management](https://www.tamtam.ai/c/grenoble-ecole-de-management) (grenoble-em.com)
A leading business school offering a wide range of educational programs in French and English, focused on solving complex problems for business and society | Education Administration Programs | 馃嚝馃嚪 Grenoble | 1,595 | 1984 |
| 4 | [CEA-Leti](https://www.tamtam.ai/c/cea-leti) (leti-cea.com)
Development of micro- and nanotechnologies for smart, energy-efficient, and secure industrial applications including healthcare, energy, and digital sectors. | Semiconductor Manufacturing | 馃嚝馃嚪 Grenoble | 1,223 | 1967 |
| 5 | [Verkor](https://www.tamtam.ai/c/verkor) (verkor.com)
Produces low-carbon batteries in France and Europe for electric vehicles and stationary storage, with a Gigafactory operational by 2025. | Motor Vehicle Parts Manufacturing | 馃嚝馃嚪 Grenoble | 997 | 2020 |
| 6 | [Cegelec CEM](https://www.tamtam.ai/c/cegelec-cem) (cegelec-cem.fr)
Designs, builds, and integrates equipment for new nuclear constructions, renovations, decommissioning, and high-stakes mechanical and electromechanical engineering projects in nuclear environments. | Industrial Machinery Manufacturing | 馃嚝馃嚪 Grenoble | 770 | |
| 7 | [ESRF - The European Synchrotron](https://www.tamtam.ai/c/esrf-the-european-synchrotron) (esrf.fr)
International science facility providing advanced synchrotron radiation for research in biology, medicine, chemistry, physics, and environmental sciences. | Research Services | 馃嚝馃嚪 Grenoble | 672 | 1994 |
| 8 | [CORYS](https://www.tamtam.ai/c/corys) (corys.com)
A leading French simulation company providing training and engineering simulators globally for transportation, power, and process industries | Software Development | 馃嚝馃嚪 Grenoble | 605 | 1989 |
| 9 | [ILL - Institut Laue Langevin](https://www.tamtam.ai/c/ill-institut-laue-langevin) (ill.eu)
Provides scientists with high flux neutrons and instruments for fundamental research in physics, chemistry, biology, materials, and nuclear science. | Research Services | 馃嚝馃嚪 Grenoble | 476 | 1967 |
| 10 | [Minitubes](https://www.tamtam.ai/c/minitubes) (minitubes.com)
A company specializing in custom high precision metal tubing manufacturing, offering innovative solutions from design to production with tight tolerance control | Medical Equipment Manufacturing | 馃嚝馃嚪 Grenoble | 346 | 1932 |
| 11 | [ECM Technologies - Industrial Furnaces](https://www.tamtam.ai/c/ecm-technologies-industrial-furnaces) (ecm-furnaces.com)
Design and supply of vacuum, high-temperature, and thermochemical process machines and solutions for various industrial sectors worldwide. | Machinery Manufacturing | 馃嚝馃嚪 Grenoble | 326 | 1928 |
| 12 | [Grenoble INP - UGA](https://www.tamtam.ai/c/grenoble-inp-uga) (grenoble-inp.fr)
Public higher education institution combining engineering schools, management programs, and research laboratories within the University Grenoble Alpes. | Higher Education | 馃嚝馃嚪 Grenoble | 287 | |
| 13 | [CEA Tech](https://www.tamtam.ai/c/cea-tech) (cea-tech.fr)
technology research unit developing ICT, energy, healthcare technologies, bridging research and business, providing access to key enabling technologies | Think Tanks | 馃嚝馃嚪 Grenoble | 192 | |
| 14 | [Grenoble INP - Phelma](https://www.tamtam.ai/c/grenoble-inp-phelma) (phelma.grenoble-inp.fr)
An engineering school offering diverse programs in fields like micro & nanotechnologies, energy, materials, information technology, biotechnology, and environmental engineering Located in Grenoble, France | Higher Education | 馃嚝馃嚪 Grenoble | 188 | |
| 15 | [Grenoble INP - Ense3](https://www.tamtam.ai/c/grenoble-inp-ense3) (ense3.grenoble-inp.fr)
Educates engineers in electrical, mechanical, hydraulic, civil, and environmental fields, focusing on the energy chain and water cycle. | Higher Education | 馃嚝馃嚪 Grenoble | 182 | 2008 |
| 16 | [Grenoble Institut Neurosciences](https://www.tamtam.ai/c/grenoble-institut-neurosciences) (neurosciences.univ-grenoble-alpes.fr)
A neuroscience institute in Grenoble specializing in studying physiological processes and neurological disorders, and developing innovative techniques for exploration | Research Services | 馃嚝馃嚪 Grenoble | 120 | 2007 |
| 17 | [Vates Virtualization Management Stack (XCP-ng / Xen Orchestra)](https://www.tamtam.ai/c/vates-virtualization-management-stack-xcp-ng-xen-orchestra) (vates.tech)
Development of XCP-ng, open source virtualization platform, and Xen Orchestra for management, backup, and cloud enablement, emphasizing flexibility and control with FOSS | Software Development | 馃嚝馃嚪 Grenoble | 114 | 2012 |
| 18 | [Renaissance Fusion](https://www.tamtam.ai/c/renaissance-fusion) (renfusion.eu)
Development of stellarator-based nuclear fusion technology aiming to simplify fusion processes, reduce electricity costs, and expand high temperature superconductor availability. | Nuclear Electric Power Generation | 馃嚝馃嚪 Grenoble | 104 | 2020 |
| 19 | [Quobly](https://www.tamtam.ai/c/quobly) (quobly.io)
A company in Grenoble, France is developing a universal quantum computer using semiconductor-industry processes to solve problems classical computers cannot | Computer Hardware Manufacturing | 馃嚝馃嚪 Grenoble | 103 | 2022 |
| 20 | [NAVER LABS Europe](https://www.tamtam.ai/c/naver-labs-europe) (europe.naverlabs.com)
Innovative R&D subsidiary advancing technology in AI, robotics, autonomous driving, 3D/HD mapping and AR to create connections between people, machines, and information | Research Services | 馃嚝馃嚪 Grenoble | 96 | 2017 |
| 21 | [Enerdata](https://www.tamtam.ai/c/enerdata) (enerdata.net)
An independent research company specializing in energy and climate analysis, offering forecasting, business intelligence, and policy assistance to clients worldwide | Business Consulting and Services | 馃嚝馃嚪 Grenoble | 95 | 1991 |
| 22 | [Reynolds and Reynolds France](https://www.tamtam.ai/c/reynolds-and-reynolds-france) (reyrey.fr)
A global leader in specialized ERP systems for automotive distribution, with solutions to enhance customer experience, productivity, and profitability for dealerships worldwide | Software Development | 馃嚝馃嚪 Grenoble | 91 | 1984 |
| 23 | [MICROOLED](https://www.tamtam.ai/c/microoled) (microoled.net)
The company specializes in delivering OLED Near-Eye Displays for various products with high definition, low power consumption, and excellent image quality | Semiconductor Manufacturing | 馃嚝馃嚪 Grenoble | 85 | 2007 |
| 24 | [Diabeloop](https://www.tamtam.ai/c/diabeloop) (diabeloop.com)
Developing intelligent therapeutic systems for diabetes management, including the first automated insulin delivery device, available in multiple European countries | Medical Equipment Manufacturing | 馃嚝馃嚪 Grenoble | 81 | 2015 |
| 25 | [GEA - Grenobloise d'Electronique et d'Automatismes](https://www.tamtam.ai/c/gea-grenobloise-d-electronique-et-d-automatismes) (gea.fr)
A French company specializing in road toll collection systems, with a focus on automatic toll plazas, electronic toll collection, and integrated parking solutions | Truck Transportation | 馃嚝馃嚪 Grenoble | 80 | 1971 |
| 26 | [INOCEL](https://www.tamtam.ai/c/inocel) (inocel.com)
A French company that designs, manufactures, and markets high power fuel cells for stationary, heavy ground mobility, and marine sectors with expertise in system integration and maintenance services | Renewable Energy Power Generation | 馃嚝馃嚪 Grenoble | 72 | 2021 |
| 27 | [SIMaP, Grenoble](https://www.tamtam.ai/c/simap-grenoble) (simap.grenoble-inp.fr)
A research laboratory focusing on materials and processes for structural and functional applications, combining experimentation, modeling, and developing complex material specifications | Research Services | 馃嚝馃嚪 Grenoble | 69 | |
| 28 | [NEXUS/FRANCE](https://www.tamtam.ai/c/nexus-france) (nexus-france.fr)
Development of innovative digital software solutions for healthcare professionals and institutions to improve patient care and operational efficiency. | IT Services and IT Consulting | 馃嚝馃嚪 Grenoble | 68 | 1988 |
| 29 | [Ficha](https://www.tamtam.ai/c/ficha) (ficha.fr)
Specialized in optical solutions using computer vision to characterize waste in sorting bins and collection trucks, assisting communities in enhancing their sorting performance | Environmental Services | 馃嚝馃嚪 Grenoble | 54 | 2017 |
| 30 | [Laboratoire des Mat茅riaux et du G茅nie Physique (LMGP)](https://www.tamtam.ai/c/laboratoire-des-materiaux-et-du-genie-physique-lmgp) (lmgp.grenoble-inp.fr)
Researches crystal growth, nanomaterials, structured thin films, and biomaterials for applications in microelectronics, energy, and health through multidisciplinary scientific collaboration and academic partnerships. | Nanotechnology Research | 馃嚝馃嚪 Grenoble | 54 | |
## 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.
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Source: https://www.tamtam.ai/l/r-and-d-companies-grenoble