# Top 30 critical infrastructure operators in the Hérault department

Tamtam tracks 57 critical infrastructure operators headquartered in the Hérault department. This list ranks the 30 largest by number of employees on LinkedIn, led by CHU de Montpellier, Crédit Agricole du Languedoc and INOVIE (Groupe). Their median headcount is 295. Half of them were founded in 2000 or later. The most common headquarters are Montpellier (19).

These companies are large critical infrastructure operators in the Hérault department, primarily in the healthcare and financial sectors, alongside public administration and environmental services. Notable entities include CHU de Montpellier, a leading hospital, and Crédit Agricole du Languedoc, a regional cooperative bank. INOVIE (Groupe) specializes in medical diagnostics, while Montpellier, Ville, Métropole et CCAS manages public services for the city.

A clear pattern among these organizations is their concentration in Montpellier, which serves as a major hub for healthcare, banking, and public administration. Many of these companies, such as URBASOLAR and Valeco, also operate in renewable energy, reflecting a mixed economic landscape within the region.

🇫🇷 Hérault · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [CHU de Montpellier](https://www.tamtam.ai/c/chu-de-montpellier) (chu-montpellier.fr)<br>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 | Hospitals and Health Care | 🇫🇷 Montpellier | 5,431 | 1958 |
| 2 | [Crédit Agricole du Languedoc](https://www.tamtam.ai/c/credit-agricole-du-languedoc) (recrutement.ca-languedoc.fr)<br>Regional cooperative bank providing financial services, insurance brokerage, and real estate transactions through extensive branches across Aude, Lozère, Gard, and Hérault departments. | Banking | 🇫🇷 Lattes | 1,728 | 2007 |
| 3 | [INOVIE (Groupe)](https://www.tamtam.ai/c/inovie-groupe) (inovie.fr)<br>Leading provider of medical diagnostics, offering a full range of biology services including genomics, pathology, fertility, and veterinary analysis across France and internationally. | Hospitals and Health Care | 🇫🇷 Montpellier | 1,592 | 2010 |
| 4 | [Montpellier, Ville, Métropole et CCAS](https://www.tamtam.ai/c/montpellier-ville-metropole-et-ccas) (montpellier.fr)<br>Manages public services, urban development, and social welfare for residents, implementing ambitious projects for ecological transition, solidarity, and economic growth. | Government Administration | 🇫🇷 Montpellier | 1,107 | 2015 |
| 5 | [Caisse d'Epargne Languedoc-Roussillon](https://www.tamtam.ai/c/caisse-d-epargne-languedoc-roussillon) (caisse-epargne.fr)<br>Regional cooperative bank in Languedoc-Roussillon, supporting individuals, businesses, and communities through loans, modern banking services, and social responsibility initiatives | Banking | 🇫🇷 Montpellier | 890 |  |
| 6 | [ICM - Institut du Cancer de Montpellier](https://www.tamtam.ai/c/icm-institut-du-cancer-de-montpellier) (icm.unicancer.fr)<br>A regional cancer research and treatment center, specializing in oncology care and recognized for its public hospital service and excellence in cancer research | Hospitals and Health Care | 🇫🇷 Montpellier | 574 | 1923 |
| 7 | [Centre Hospitalier de Béziers](https://www.tamtam.ai/c/centre-hospitalier-de-beziers) (ch-beziers.fr)<br>Public health institution providing medical services, employment opportunities, professional expertise, and health sector information for the Ouest-Hérault region. | Hospitals and Health Care | 🇫🇷 Béziers | 554 | 1995 |
| 8 | [SDIS 34](https://www.tamtam.ai/c/sdis-34) (sdis34.fr)<br>Emergency services provider in Hérault, always present and ready to respond when needed | Government Administration | 🇫🇷 Vailhauquès | 517 |  |
| 9 | [Urbaser Environnement SAS](https://www.tamtam.ai/c/urbaser-environnement-sas) (urbaserenvironnement.fr)<br>A leading player in environmental services for local authorities specializing in waste collection, cleaning, and waste valorization through innovative technologies globally | Environmental Services | 🇫🇷 Montpellier | 501 | 2002 |
| 10 | [URBASOLAR](https://www.tamtam.ai/c/urbasolar) (urbasolar.com)<br>Develops, finances, builds, operates professional photovoltaic plants, offering innovative solutions for diagnosis and building implementation. | Renewable Energy Power Generation | 🇫🇷 Montpellier | 423 | 2006 |
| 11 | [Valeco](https://www.tamtam.ai/c/valeco) (groupevaleco.com)<br>Design, finance, build, operate, and maintain wind farms and solar power plants, focusing on renewable energy production and sales. | Services for Renewable Energy | 🇫🇷 Montpellier | 416 | 1995 |
| 12 | [TaM Montpellier 3M](https://www.tamtam.ai/c/tam-montpellier-3m) (tam-voyages.com)<br>Provides tram, bus, bike-sharing, parking, and car-sharing services to support sustainable urban mobility in Montpellier metropolitan area. | Truck Transportation | 🇫🇷 Montpellier | 399 | 1978 |
| 13 | [Clinique Saint Jean Sud de France](https://www.tamtam.ai/c/clinique-saint-jean-sud-de-france) (cliniquesaintjean.capsante.fr)<br>Providing high-quality surgical and medical care for all ages with modern equipment and experienced medical and paramedical teams. | Hospitals and Health Care | 🇫🇷 Montpellier | 362 |  |
| 14 | [INOVIE Labosud](https://www.tamtam.ai/c/inovie-labosud) (labosud.fr)<br>A medical practice located in Montpellier, France, providing healthcare services in the Languedoc-Roussillon region | Medical Practice | 🇫🇷 Montpellier | 329 |  |
| 15 | [Clinique du Millénaire](https://www.tamtam.ai/c/clinique-du-millenaire) (oc-sante.fr)<br>Specialized medical services offering patient-centered care, advanced diagnostics, and treatment solutions to improve health and well-being. | Hospitals and Health Care | 🇫🇷 Montpellier | 295 | 2003 |
| 16 | [Arkolia](https://www.tamtam.ai/c/arkolia) (arkolia.com)<br>An integrated French multi-energy energizer, active in solar, wind, and green gas, develops and operates power plants, ensuring design, construction, maintenance. | Solar Electric Power Generation | 🇫🇷 Mauguio | 282 | 2009 |
| 17 | [Ugecam Occitanie](https://www.tamtam.ai/c/ugecam-occitanie) (groupe-ugecam.fr)<br>A leading non-profit operator in the healthcare and social sector, providing specialized care, rehabilitation, and professional reintegration services across multiple facilities | Hospitals and Health Care | 🇫🇷 Castelnau-le-Lez | 254 | 2000 |
| 18 | [Oc Santé](https://www.tamtam.ai/c/oc-sante) (oc-sante.fr)<br>Management of 24 healthcare facilities in Occitanie, covering surgery, maternity, medicine, home hospitalization, rehabilitation, psychiatry, elderly care, and personal services. | Hospitals and Health Care | 🇫🇷 Montpellier | 248 |  |
| 19 | [Sète Agglopôle Méditerranée](https://www.tamtam.ai/c/sete-agglopole-mediterranee) (agglopole.fr)<br>Management of public services, development projects, and fostering economic, cultural cooperation among 14 communes with 125,000 residents. | Government Administration | 🇫🇷 Frontignan | 239 | 2017 |
| 20 | [Polyclinique Saint-Roch](https://www.tamtam.ai/c/polyclinique-saint-roch) (oc-sante.fr)<br>A leading clinic in Southern France, offering a wide range of medical services including maternity, orthopedics, surgery, internal medicine, geriatrics, and emergency care | Hospitals and Health Care | 🇫🇷 Montpellier | 231 | 1947 |
| 21 | [Hôpitaux du Bassin de Thau](https://www.tamtam.ai/c/hopitaux-du-bassin-de-thau) (ch-bassindethau.fr)<br>French public healthcare provider, offering medical, surgical, and elderly care, including training for nurses and caregivers, across multiple sites in the Thau basin area. | Hospitals and Health Care | 🇫🇷 Sète | 230 |  |
| 22 | [Mutualité Française Grand Sud](https://www.tamtam.ai/c/mutualite-francaise-grand-sud) (mfgs.fr)<br>Regional mutual network providing healthcare and social support services across multiple departments, focusing on community solidarity and life journey assistance. | Health and Human Services | 🇫🇷 Montpellier | 226 | 2016 |
| 23 | [CPAM de l'Hérault (Assurance Maladie)](https://www.tamtam.ai/c/cpam-de-l-herault-assurance-maladie) (ameli.fr)<br>Working within the health insurance sector, the company is dedicated to protecting the health of over 60 million policyholders through various projects and initiatives | Government Administration | 🇫🇷 Montpellier | 219 | 1945 |
| 24 | [Institut Mutualiste Montpelliérain - Clinique Beau Soleil](https://www.tamtam.ai/c/institut-mutualiste-montpellierain-clinique-beau-soleil) (aesio-sante.fr)<br>A non-profit private healthcare institution offering a wide range of care services without additional fees, equipped with advanced medical technologies | Hospitals and Health Care | 🇫🇷 Montpellier | 180 |  |
| 25 | [Fondation Charles Mion-AIDER Santé](https://www.tamtam.ai/c/fondation-charles-mion-aider-sante) (aidersante.com)<br>Private healthcare provider specializing in nephrology, offering comprehensive chronic kidney disease management and dialysis across multiple regional sites. | Hospitals and Health Care | 🇫🇷 Grabels | 179 | 1971 |
| 26 | [Banque Dupuy, de Parseval](https://www.tamtam.ai/c/banque-dupuy-de-parseval) (banquepopulaire.fr)<br>Established in 1845 by four families, this bank initially focused on local business financing Now serving multiple departments, it offers a range of financial services to a diverse clientele | Financial Services | 🇫🇷 Sète | 162 | 1845 |
| 27 | [Institut Saint-Pierre](https://www.tamtam.ai/c/institut-saint-pierre) (institut-st-pierre.com)<br>A pediatric institution in Occitanie, providing high-quality medical and rehabilitation care to around 11,500 children and adolescents annually | Hospitals and Health Care | 🇫🇷 Palavas-les-Flots | 160 | 1918 |
| 28 | [Groupe Cap Santé](https://www.tamtam.ai/c/groupe-cap-sante) (capsante.fr)<br>Operates 18 regional private healthcare facilities including surgical, psychiatric clinics, home hospitalization, rehabilitation centers, nursing homes, and telemedicine services. | Hospitals and Health Care | 🇫🇷 Pézenas | 149 |  |
| 29 | [Clinique Clémentville](https://www.tamtam.ai/c/clinique-clementville) (oc-sante.fr)<br>A private medical center in Montpellier offering cancer care, maternity services, pain management, multidisciplinary surgery, ambulatory breast surgery, and urgent care | Hospitals and Health Care | 🇫🇷 Montpellier | 139 | 1912 |
| 30 | [Vensolair](https://www.tamtam.ai/c/vensolair) (vensolair.fr)<br>Development of wind farms, solar photovoltaic plants, battery storage, and renewable hydrogen through local stakeholder engagement and technical expertise for regional energy transition. | Services for Renewable Energy | 🇫🇷 Montpellier | 128 | 2005 |

## 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](https://www.tamtam.ai/l/largest-companies-herault) (1,461)
- [Companies with in-house R&D in the Hérault department](https://www.tamtam.ai/l/r-and-d-companies-herault) (155)
- [Retail chains in the Hérault department](https://www.tamtam.ai/l/retail-chains-herault) (131)
- [SaaS companies in the Hérault department](https://www.tamtam.ai/l/saas-companies-herault) (110)
- [Software Development companies in the Hérault department](https://www.tamtam.ai/l/software-development-companies-herault) (107)
- [Multinational companies in the Hérault department](https://www.tamtam.ai/l/multinational-companies-herault) (103)
- [Professional services firms in the Hérault department](https://www.tamtam.ai/l/professional-services-firms-herault) (84)
- [Manufacturers in the Hérault department](https://www.tamtam.ai/l/manufacturers-herault) (71)
- [Public sector organisations in the Hérault department](https://www.tamtam.ai/l/public-sector-organisations-herault) (68)
- [Education providers in the Hérault department](https://www.tamtam.ai/l/education-companies-herault) (61)
- [Hardware manufacturers in the Hérault department](https://www.tamtam.ai/l/hardware-companies-herault) (61)
- [IT Services and IT Consulting companies in the Hérault department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-herault) (57)
- [Real Estate companies in the Hérault department](https://www.tamtam.ai/l/real-estate-companies-herault) (56)
- [Retail companies in the Hérault department](https://www.tamtam.ai/l/retail-companies-herault) (54)
- [IT services companies in the Hérault department](https://www.tamtam.ai/l/it-services-companies-herault) (53)
- [Higher Education companies in the Hérault department](https://www.tamtam.ai/l/higher-education-companies-herault) (52)
- [Family-owned companies in the Hérault department](https://www.tamtam.ai/l/family-owned-companies-herault) (50)
- [Law Practice companies in the Hérault department](https://www.tamtam.ai/l/law-practice-companies-herault) (49)
- [Accounting firms in the Hérault department](https://www.tamtam.ai/l/accounting-firms-herault) (48)
- [Healthcare providers in the Hérault department](https://www.tamtam.ai/l/healthcare-providers-herault) (48)
- [Accounting companies in the Hérault department](https://www.tamtam.ai/l/accounting-companies-herault) (48)
- [Distributors and wholesalers in the Hérault department](https://www.tamtam.ai/l/distributors-and-wholesalers-herault) (48)
- [Pharmaceutical companies in the Hérault department](https://www.tamtam.ai/l/pharmaceutical-companies-herault) (44)
- [Subscription businesses in the Hérault department](https://www.tamtam.ai/l/subscription-businesses-herault) (44)

## The same list elsewhere in France

- [Critical infrastructure operators in France](https://www.tamtam.ai/l/critical-infrastructure-operators-france) (2,721)
- [Critical infrastructure operators in Île-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-ile-de-france) (780)
- [Critical infrastructure operators in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/critical-infrastructure-operators-auvergne-rhone-alpes) (299)
- [Critical infrastructure operators in Grand Est](https://www.tamtam.ai/l/critical-infrastructure-operators-grand-est) (257)
- [Critical infrastructure operators in Occitanie](https://www.tamtam.ai/l/critical-infrastructure-operators-occitanie) (216)
- [Critical infrastructure operators in Nouvelle-Aquitaine](https://www.tamtam.ai/l/critical-infrastructure-operators-nouvelle-aquitaine) (209)
- [Critical infrastructure operators in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/critical-infrastructure-operators-provence-alpes-cote-dazur) (200)
- [Critical infrastructure operators in Hauts-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-france) (174)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [Critical infrastructure operators in Pays de la Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-pays-de-la-loire) (127)
- [Critical infrastructure operators in Brittany](https://www.tamtam.ai/l/critical-infrastructure-operators-brittany) (120)
- [Critical infrastructure operators in Normandy](https://www.tamtam.ai/l/critical-infrastructure-operators-normandy) (103)
- [Critical infrastructure operators in the Bouches-du-Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-bouches-du-rhone) (98)
- [Critical infrastructure operators in the Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-rhone) (94)
- [Critical infrastructure operators in Centre-Val de Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-centre-val-de-loire) (87)
- [Critical infrastructure operators in the Nord department](https://www.tamtam.ai/l/critical-infrastructure-operators-nord) (87)
- [Critical infrastructure operators in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/critical-infrastructure-operators-bourgogne-franche-comte) (76)
- [Critical infrastructure operators in the Haute-Garonne department](https://www.tamtam.ai/l/critical-infrastructure-operators-haute-garonne) (64)
- [Critical infrastructure operators in the Gironde department](https://www.tamtam.ai/l/critical-infrastructure-operators-gironde) (63)
- [Critical infrastructure operators in the Loire-Atlantique department](https://www.tamtam.ai/l/critical-infrastructure-operators-loire-atlantique) (59)
- [Critical infrastructure operators in the Seine-Saint-Denis department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-saint-denis) (53)
- [Critical infrastructure operators in the Seine-Maritime department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-maritime) (46)
- [Critical infrastructure operators in the Ille-et-Vilaine department](https://www.tamtam.ai/l/critical-infrastructure-operators-ille-et-vilaine) (45)
- [Critical infrastructure operators in Paris](https://www.tamtam.ai/l/critical-infrastructure-operators-paris) (331)

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Source: https://www.tamtam.ai/l/critical-infrastructure-operators-herault