The Hérault department is home to a varied group of mid-sized to large organizations, with a strong presence of public sector and health-related entities. Notable among them are CHU de Montpellier, a leading hospital, CIRAD, a research center for sustainable agriculture, and ICM - Institut du Cancer de Montpellier, a regional cancer research and treatment center. Private companies like Biotope, an ecological engineering firm, and URBASOLAR, specializing in photovoltaic plants, also feature prominently.
The companies on this list, which include Hexis S.A.S. (graphic vinyl manufacturing) and Medincell (pharmaceuticals), demonstrate a mix of industries. A significant pattern is the concentration of headquarters in Montpellier, indicating its role as a regional hub for both public institutions and private enterprises.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CHU de Montpellierchu-montpellier.fr
Leading hospital in Montpellier with 12,000 employees and 15 medical departments offering over 90 services across 8 facilities, ranked 5th by Le Point magazine in 2019 |
5,431 | |||
| 2 | 2,431 | ||||
| 3 |
Biotopebiotope.fr
A leading French ecological engineering and nature conservation company with over 240 employees, 25 sites, operations in 40+ countries, and diverse services |
585 | |||
| 4 |
ICM - Institut du Cancer de Montpelliericm.unicancer.fr
A regional cancer research and treatment center, specializing in oncology care and recognized for its public hospital service and excellence in cancer research |
574 | |||
| 5 |
L'Institut Agro Montpellierinstitut-agro-montpellier.fr
A public institution in South France offering higher education and research in agricultural fields, with a focus on various training topics |
529 | |||
| 6 |
URBASOLARurbasolar.com
Develops, finances, builds, operates professional photovoltaic plants, offering innovative solutions for diagnosis and building implementation. |
423 | |||
| 7 |
Arkoliaarkolia.com
An integrated French multi-energy energizer, active in solar, wind, and green gas, develops and operates power plants, ensuring design, construction, maintenance. |
282 | |||
| 8 |
Septeo Hospitalitysepteo.com
A top hospitality IT partner serving lodging, restaurant, and wellness sectors with a dedicated team assisting 2000 clients across 15 countries |
240 | |||
| 9 |
Groupe Adènegroupe-adene.com
Provides home healthcare services combining medical professionals and patient representatives to maintain and develop care and support offerings. |
225 | |||
| 10 |
HEXIS S.A.S.hexis-graphics.com
Manufactures graphic vinyl and digital printing media for sign making and vehicle markings, with international subsidiaries and global exports. |
220 | |||
| 11 |
Groupe ICVicv.fr
Specializes in the art and expertise of wine, focusing on quality, tradition, and knowledge in wine production and appreciation. |
201 | |||
| 12 |
Profils Systèmesprofils-systemes.com
Design, develop, and manufacture custom high-quality aluminum solutions for innovative architectural and building projects with environmental focus. |
189 | |||
| 13 |
VOGOvogo-group.com
Develops and distributes live video replay solutions for sports spectators alongside professional audio communication systems for industrial and audiovisual venue sectors. |
183 | |||
| 14 |
Medincellmedincell.com
A pharmaceutical company developing long-acting injectables using proprietary technology to improve patient compliance, treatment effectiveness, and reduce environmental footprint |
179 | |||
| 15 |
Solem Electroniqueprimal.tech
French company specialized in developing and industrializing connected devices for irrigation professionals, connected watering solutions, and telecare services |
167 | |||
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. | |||||
| 16 |
IRCM - Institut de Recherche en Cancérologie de Montpellierircm.fr
Research center develops basic and translational oncology, focusing on solid tumor plasticity and therapeutic antibodies for cancer treatment, collaborating with clinical departments. |
161 | |||
| 17 | 160 | ||||
| 18 |
Genviagenvia.com
Clean hydrogen technology venture enabling decarbonization with high-performance electrolyser and fuel cell systems, strategic alliances, and giga factory for production |
151 | |||
| 19 |
Septeo Solutions Avocatssepteo.com
Development of software and services tailored for lawyers, optimizing law firm management, client communication, billing, and performance analysis. |
145 | |||
| 20 |
i2ai2a-diagnostics.fr
Specialized microbiology diagnostic company with expertise in bactériologie, manufacturing & selling instruments, software, reagents Leading in antibiogram readers & innovative products for hospitals globally |
141 | |||
| 21 |
Tageostageos.com
Global leader in designing and manufacturing RFID inlays and tags Offers high-quality RAIN RFID, NFC, and HF products for tracking, authentication, and product enhancement |
141 | |||
| 22 |
Quantum Surgicalquantumsurgical.com
Innovative medical robotics and AI company providing robotic percutaneous ablation platforms for curative cancer treatment through standardized access and less invasive procedures. |
140 | |||
| 23 |
Dalkia Air Solutionsdalkiaairsolutions.fr
Provides solutions for compressed air, nitrogen, and breathable air production, treatment, and networks, focusing on energy performance improvement for industrial and nuclear clients. |
138 | |||
| 24 | 137 | ||||
| 25 |
Zimmer Biomet Robotics (formerly Medtech SA)zimmerbiomet.eu
Designs and develops robotic assistance to improve medical surgical techniques, promoting safer, more effective, and less invasive treatments for patients and practitioners |
136 | |||
| 26 |
BIO-UV Groupbio-uv.com
Design manufacture market UV-C ozone AOP salt electrolysis disinfection systems for vessels water treatment pools aquariums fish ponds |
126 | |||
| 27 |
Eliiseliis-geo.com
Provides seismic interpretation software (PaleoScan) and services (support, consulting, training) to energy companies globally, enhancing geological understanding and decision-making. |
118 | |||
| 28 |
Weda - Logiciel médicalweda.fr
WEDA provides a comprehensive and intuitive online medical record solution for healthcare professionals, offering expertise in technology and medical informatics for over 20 years |
115 | |||
| 29 |
ICGM Montpelliericgm.fr
Public research laboratory supported by CNRS, University of Montpellier, and ENSCM, advancing materials chemistry in health, environment, and energy fields. |
113 | |||
| 30 | 109 | ||||
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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 the Hérault department
- The largest companies in the Hérault department 1,461
- Retail chains in the Hérault department 131
- SaaS companies in the Hérault department 110
- Software Development companies in the Hérault department 107
- Multinational companies in the Hérault department 103
- Professional services firms in the Hérault department 84
- Manufacturers in the Hérault department 71
- Public sector organisations in the Hérault department 68
- Education providers in the Hérault department 61
- Hardware manufacturers in the Hérault department 61
- Critical infrastructure operators in the Hérault department 57
- IT Services and IT Consulting companies in the Hérault department 57
- Real Estate companies in the Hérault department 56
- Retail companies in the Hérault department 54
- IT services companies in the Hérault department 53
- Higher Education companies in the Hérault department 52
- Family-owned companies in the Hérault department 50
- Law Practice companies in the Hérault department 49
- Accounting firms in the Hérault department 48
- Healthcare providers in the Hérault department 48
- Accounting companies in the Hérault department 48
- Distributors and wholesalers in the Hérault department 48
- Pharmaceutical companies in the Hérault department 44
- Subscription businesses in the Hérault department 44
The same list elsewhere in France
- Companies with in-house R&D in France 8,750
- Companies with in-house R&D in Île-de-France 2,695
- Companies with in-house R&D in Auvergne-Rhône-Alpes 1,460
- Companies with in-house R&D in Occitanie 680
- Companies with in-house R&D in Grand Est 640
- Companies with in-house R&D in Provence-Alpes-Côte d'Azur 613
- Companies with in-house R&D in Nouvelle-Aquitaine 566
- Companies with in-house R&D in the Hauts-de-Seine department 510
- Companies with in-house R&D in the Rhône department 509
- Companies with in-house R&D in Pays de la Loire 480
- Companies with in-house R&D in Hauts-de-France 410
- Companies with in-house R&D in Brittany 366
- Companies with in-house R&D in the Haute-Garonne department 323
- Companies with in-house R&D in the Bouches-du-Rhône department 321
- Companies with in-house R&D in the Isère department 304
- Companies with in-house R&D in Bourgogne-Franche-Comté 261
- Companies with in-house R&D in the Nord department 237
- Companies with in-house R&D in Normandy 227
- Companies with in-house R&D in the Gironde department 225
- Companies with in-house R&D in the Loire-Atlantique department 207
- Companies with in-house R&D in the Essonne department 198
- Companies with in-house R&D in Centre-Val de Loire 195
- Companies with in-house R&D in Paris 1,249
- Companies with in-house R&D in Lyon 192