# Healthcare providers headquartered in the Seine-Maritime department

Tamtam tracks 34 healthcare providers headquartered in the Seine-Maritime department. This list ranks the 30 largest by number of employees on LinkedIn, led by CHU de Rouen, Groupe Hospitalier du Havre - GHH and IDEFHI. Their median headcount is 127. Half of them were founded in 2008 or later. The most common headquarters are Le Havre (8) and Rouen (8).

The companies listed are primarily healthcare providers in Seine-Maritime, encompassing a range of services from large hospital networks to specialized care. These include major institutions like CHU de Rouen, a large hospital network, and Groupe Hospitalier du Havre - GHH, a leading healthcare provider. Other firms offer specialized support, such as IDEFHI for child protection and disability services, Junior Senior for home care, and OXYPHARM for home medical technology solutions. Mon Véto represents a network of veterinary clinics, indicating a broader scope of health-related services.

The data shows a concentration of headquarters in Rouen and Le Havre, with several older establishments like Groupe Hospitalier du Havre - GHH (founded 1669) and Clinique Saint Hilaire (founded 1886) alongside more recently established entities such as VYV 3 Normandie (founded 2014) and Mon Véto (founded 2010). This mix highlights both historical roots and ongoing development within the region's healthcare sector.

🇫🇷 Seine-Maritime · 30 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [CHU de Rouen](https://www.tamtam.ai/c/chu-de-rouen) (chu-rouen.fr)<br>Large hospital network providing patient care, medical education, and research, supporting regional healthcare and training future health professionals. | Hospitals and Health Care | 🇫🇷 Rouen | 3,823 |  |
| 2 | [Groupe Hospitalier du Havre - GHH](https://www.tamtam.ai/c/groupe-hospitalier-du-havre-ghh) (ch-havre.fr)<br>Leading healthcare provider, comprehensive care, advanced medical technology, collaboration with other hospitals, diverse medical professions, round-the-clock technical platform. | Hospitals and Health Care | 🇫🇷 Montivilliers | 893 | 1669 |
| 3 | [IDEFHI](https://www.tamtam.ai/c/idefhi) (idefhi.fr)<br>A public institution focused on child protection and disability services in Seine-Maritime, offering support for children, adolescents, and adults with disabilities | Community Services | 🇫🇷 Canteleu | 648 | 2008 |
| 4 | [Junior Senior](https://www.tamtam.ai/c/junior-senior) (juniorsenior.fr)<br>Junior Senior is a network of approved home care services providing various services like cleaning, gardening, childcare, and support for dependency and disability | Individual and Family Services | 🇫🇷 Le Havre | 427 | 1998 |
| 5 | [OXYPHARM](https://www.tamtam.ai/c/oxypharm) (vitadomia.com)<br>Oxypharm offers personalized medical technology solutions through collaboration with pharmacists, specializing in home medical equipment, respiratory care, infusion/nutrition/diabetes, and disability support | Home Health Care Services | 🇫🇷 Rouen | 425 |  |
| 6 | [Mon Véto](https://www.tamtam.ai/c/mon-veto) (veterinaire-monveto.com)<br>Established in 2010 by veterinarians, this network of general veterinary clinics has expanded across various regions in France, boasting over 250 clinics and nearly 1900 veterinary professionals | Veterinary Services | 🇫🇷 Rouen | 335 | 2010 |
| 7 | [Centre hospitalier intercommunal Elbeuf Louviers Val de Reuil](https://www.tamtam.ai/c/centre-hospitalier-intercommunal-elbeuf-louviers-val-de-reuil) (chi-elbeuf-louviers.fr)<br>Public healthcare facility in Normandy with 1083 beds, 2143 staff including 267 medical personnel, two hospital sites, maternity, and five nursing homes. | Hospitals and Health Care | 🇫🇷 Saint-Aubin-lès-Elbeuf | 291 | 1989 |
| 8 | [Clinique Saint Hilaire](https://www.tamtam.ai/c/clinique-saint-hilaire) (clinique-sainthilaire.fr)<br>Medical surgical facility with 223 beds, 380 staff, 75 practitioners, offering innovative care across surgical, cardiovascular, and oncology specialties. | Hospitals and Health Care | 🇫🇷 Rouen | 265 | 1886 |
| 9 | [UGECAM NORMANDIE](https://www.tamtam.ai/c/ugecam-normandie) (groupe-ugecam.fr)<br>A non-profit group in France providing healthcare and support services for people with physical and intellectual disabilities, with a focus on equality and quality care | Hospitals and Health Care | 🇫🇷 Le Petit-Quevilly | 224 | 2000 |
| 10 | [VYV 3 Normandie](https://www.tamtam.ai/c/vyv-3-normandie) (normandie.vyv3.fr)<br>Provides extensive medical and paramedical care, social support services, and community health programs across Normandy for diverse populations. | Hospitals and Health Care | 🇫🇷 Rouen | 222 | 2014 |
| 11 | [HOPITAL PRIVE DE L'ESTUAIRE](https://www.tamtam.ai/c/hopital-prive-de-l-estuaire) (hopital-prive-de-l-estuaire-le-havre.ramsaysante.fr)<br>A healthcare facility in Le Havre, part of Ramsay Santé group, providing comprehensive inpatient and outpatient services with a focus on high-quality patient care | Hospitals and Health Care | 🇫🇷 Le Havre | 212 | 2010 |
| 12 | [CLINIQUE DU CEDRE](https://www.tamtam.ai/c/clinique-du-cedre) (clinique-du-cedre.fr)<br>A hospital and health care company located in Bois Guillaume, France, specializing in providing medical services to patients | Hospitals and Health Care | 🇫🇷 Bois-Guillaume | 184 |  |
| 13 | [EHPAD Les jardins de Matisse](https://www.tamtam.ai/c/ehpad-les-jardins-de-matisse) (lesjardinsdematisse.fr)<br>A 104-bed nursing home with a dedicated Alzheimer's unit and a day care center Focused on creating a holistic living environment with Humanitude philosophy | Wellness and Fitness Services | 🇫🇷 Le Grand-Quevilly | 154 | 2008 |
| 14 | [LADAPT Normandie](https://www.tamtam.ai/c/ladapt-normandie) (ladapt.net)<br>A non-profit association in France supporting people with disabilities through various services, campaigns, and events to promote inclusion and fight prejudice | Civic and Social Organizations | 🇫🇷 Rouen | 148 | 1929 |
| 15 | [CLINIQUE DES ORMEAUX](https://www.tamtam.ai/c/clinique-des-ormeaux) (ormeaux.com)<br>Hospital & health care company located in Le Havre, France, providing medical services to patients in need of healthcare | Hospitals and Health Care | 🇫🇷 Le Havre | 127 |  |
| 16 | [EPA HELEN KELLER](https://www.tamtam.ai/c/epa-helen-keller)<br>A public institution providing support and care to children and adults with disabilities through various services and specialized programs | Civic and Social Organizations | 🇫🇷 Le Havre | 124 | 2017 |
| 17 | [Les Escales - EHPAD publics du Havre](https://www.tamtam.ai/c/les-escales-ehpad-publics-du-havre) (ehpad-lesescales.fr)<br>Les Escales provides specialized care for elderly residents in Le Havre through 6 public nursing homes, alongside home care services | Hospitals and Health Care | 🇫🇷 Le Havre | 115 | 2016 |
| 18 | [APEI Seine & Mer](https://www.tamtam.ai/c/apei-seine-and-mer) (apeiseinemer.fr)<br>A non-profit association supporting individuals with disabilities and their families, providing services and specialized care through 11 facilities in Dieppe | Civic and Social Organizations | 🇫🇷 Dieppe | 113 | 1966 |
| 19 | [CLINIQUE OCEANE](https://www.tamtam.ai/c/clinique-oceane) (clinique-oceane.ramsaysante.fr)<br>Located in Le Havre, Clinique Océane, part of Ramsay Santé group, provides exceptional healthcare services in a welcoming environment since 2012 | Hospitals and Health Care | 🇫🇷 Le Havre | 105 | 2012 |
| 20 | [Laboratoire BioLBS](https://www.tamtam.ai/c/laboratoire-biolbs) (biolbs.fr)<br>A medical biology analysis laboratory specializing in providing diagnostic testing services | Medical Practices | 🇫🇷 Lillebonne | 76 |  |
| 21 | [masanté.pro](https://www.tamtam.ai/c/masante-pro) (masante.pro)<br>The company provides inter-company prevention and health services in Seine-Maritime, focusing on preventing health issues in the workplace through a multidisciplinary approach | Hospitals and Health Care | 🇫🇷 Mont-Saint-Aignan | 75 | 1955 |
| 22 | [Vidi - nora imagerie](https://www.tamtam.ai/c/vidi-nora-imagerie) (nora-imagerie.fr)<br>A group of medical imaging centers in Calvados, Eure, and Seine-Maritime, offering various medical imaging and interventional procedures, focusing on patient care | Medical Practices | 🇫🇷 Le Havre | 75 | 2021 |
| 23 | [Centre Hospitalier Durécu-Lavoisier (CHDL)](https://www.tamtam.ai/c/centre-hospitalier-durecu-lavoisier-chdl) (chdl.fr)<br>The company provides medical care and rehabilitation services through nursing homes within the Durécu-Lavoisier Hospital Center and L'Eau Vive | Hospitals and Health Care | 🇫🇷 Darnétal | 69 |  |
| 24 | [CHI CAUX VALLEE DE SEINE](https://www.tamtam.ai/c/chi-caux-vallee-de-seine) (chi-cauxvalleedeseine.fr)<br>Public healthcare facility providing 24/7 care, ensuring continuity of services, and prohibiting discrimination in patient admission, in accordance with health regulations | Hospitals and Health Care | 🇫🇷 Lillebonne | 63 | 1983 |
| 25 | [Laboratoire Biocéane](https://www.tamtam.ai/c/laboratoire-bioceane) (bioceane.fr)<br>BIOCEANE is a leading laboratory in Le Havre, providing medical services, public health solutions, and quality care through a team of 200 professionals across 12 sites | Medical and Diagnostic Laboratories | 🇫🇷 Le Havre | 56 |  |
| 26 | [Etablissement Public Départemental de Grugny](https://www.tamtam.ai/c/etablissement-public-departemental-de-grugny) (epd-grugny.fr)<br>A care facility supporting elderly dependent individuals and adults with disabilities in their daily lives, meeting their needs effectively | Health and Human Services | 🇫🇷 Grugny | 52 |  |
| 27 | [Centre Hospitalier du Bois-Petit](https://www.tamtam.ai/c/centre-hospitalier-du-bois-petit) (ch-boispetit.fr)<br>Public hospital specializing in elderly care with multiple residences providing nursing, rehabilitation, psychogeriatric, and day care services in Rouen. | Hospitals and Health Care | 🇫🇷 Sotteville-lès-Rouen | 49 | 1901 |
| 28 | [SANTALIS](https://www.tamtam.ai/c/santalis) (santalis.fr)<br>Network of innovative pharmacies focused on daily health and well-being, offering expert advice, quality service, and fair pricing. | Retail Health and Personal Care Products | 🇫🇷 Rouen | 41 | 2018 |
| 29 | [Centre Hospitalier et EHPAD Asselin Hedelin-Hôpital Yvetot-](https://www.tamtam.ai/c/centre-hospitalier-et-ehpad-asselin-hedelin-hopital-yvetot) (hopital-yvetot.fr)<br>A local hospital offering medical and rehabilitation services, as well as an EHPAD facility for the elderly in need of care | Hospitals and Health Care | 🇫🇷 Yvetot | 39 |  |
| 30 | [ASSOCIATION SPASAD LAJOSA](https://www.tamtam.ai/c/association-spasad-lajosa) (lajosa.fr)<br>Providing high-quality home care services, including specialized Alzheimer's care, with over 400,000 interventions in 13 years and 30,000 hours of assistance annually | Hospitals and Health Care | 🇫🇷 Rouen | 35 | 2008 |

## 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 13, 2026.

## More company lists in the Seine-Maritime department

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- [Real Estate companies in the Seine-Maritime department](https://www.tamtam.ai/l/real-estate-companies-seine-maritime) (30)
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- [Hospitals and Health Care companies in the Seine-Maritime department](https://www.tamtam.ai/l/hospitals-and-health-care-companies-seine-maritime) (25)

## The same list elsewhere in France

- [Healthcare providers in France](https://www.tamtam.ai/l/healthcare-providers-france) (2,244)
- [Healthcare providers in Île-de-France](https://www.tamtam.ai/l/healthcare-providers-ile-de-france) (583)
- [Healthcare providers in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/healthcare-providers-auvergne-rhone-alpes) (248)
- [Healthcare providers in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/healthcare-providers-provence-alpes-cote-dazur) (224)
- [Healthcare providers in Grand Est](https://www.tamtam.ai/l/healthcare-providers-grand-est) (202)
- [Healthcare providers in Occitanie](https://www.tamtam.ai/l/healthcare-providers-occitanie) (194)
- [Healthcare providers in Nouvelle-Aquitaine](https://www.tamtam.ai/l/healthcare-providers-nouvelle-aquitaine) (189)
- [Healthcare providers in Hauts-de-France](https://www.tamtam.ai/l/healthcare-providers-hauts-de-france) (143)
- [Healthcare providers in Pays de la Loire](https://www.tamtam.ai/l/healthcare-providers-pays-de-la-loire) (118)
- [Healthcare providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/healthcare-providers-hauts-de-seine) (108)
- [Healthcare providers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/healthcare-providers-bouches-du-rhone) (107)
- [Healthcare providers in the Rhône department](https://www.tamtam.ai/l/healthcare-providers-rhone) (104)
- [Healthcare providers in Brittany](https://www.tamtam.ai/l/healthcare-providers-brittany) (97)
- [Healthcare providers in the Nord department](https://www.tamtam.ai/l/healthcare-providers-nord) (82)
- [Healthcare providers in Normandy](https://www.tamtam.ai/l/healthcare-providers-normandy) (80)
- [Healthcare providers in the Gironde department](https://www.tamtam.ai/l/healthcare-providers-gironde) (71)
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- [Healthcare providers in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/healthcare-providers-bourgogne-franche-comte) (63)
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- [Healthcare providers in Marseille](https://www.tamtam.ai/l/healthcare-providers-marseille) (57)
- [Healthcare providers in Lyon](https://www.tamtam.ai/l/healthcare-providers-lyon) (53)

## The same list elsewhere

- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,037)
- [Healthcare providers in Europe](https://www.tamtam.ai/l/healthcare-providers-in-europe) (6,132)

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Source: https://www.tamtam.ai/l/healthcare-providers-seine-maritime