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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CHU de Rouenchu-rouen.fr
Large hospital network providing patient care, medical education, and research, supporting regional healthcare and training future health professionals. |
3,823 | |||
| 2 |
Groupe Hospitalier du Havre - GHHch-havre.fr
Leading healthcare provider, comprehensive care, advanced medical technology, collaboration with other hospitals, diverse medical professions, round-the-clock technical platform. |
893 | |||
| 3 | 648 | ||||
| 4 |
Junior Seniorjuniorsenior.fr
Junior Senior is a network of approved home care services providing various services like cleaning, gardening, childcare, and support for dependency and disability |
427 | |||
| 5 |
OXYPHARMvitadomia.com
Oxypharm offers personalized medical technology solutions through collaboration with pharmacists, specializing in home medical equipment, respiratory care, infusion/nutrition/diabetes, and disability support |
425 | |||
| 6 |
Mon Vétoveterinaire-monveto.com
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 |
335 | |||
| 7 |
Centre hospitalier intercommunal Elbeuf Louviers Val de Reuilchi-elbeuf-louviers.fr
Public healthcare facility in Normandy with 1083 beds, 2143 staff including 267 medical personnel, two hospital sites, maternity, and five nursing homes. |
291 | |||
| 8 |
Clinique Saint Hilaireclinique-sainthilaire.fr
Medical surgical facility with 223 beds, 380 staff, 75 practitioners, offering innovative care across surgical, cardiovascular, and oncology specialties. |
265 | |||
| 9 |
UGECAM NORMANDIEgroupe-ugecam.fr
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 |
224 | |||
| 10 |
VYV 3 Normandienormandie.vyv3.fr
Provides extensive medical and paramedical care, social support services, and community health programs across Normandy for diverse populations. |
222 | |||
| 11 |
HOPITAL PRIVE DE L'ESTUAIREhopital-prive-de-l-estuaire-le-havre.ramsaysante.fr
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 |
212 | |||
| 12 |
CLINIQUE DU CEDREclinique-du-cedre.fr
A hospital and health care company located in Bois Guillaume, France, specializing in providing medical services to patients |
184 | |||
| 13 |
EHPAD Les jardins de Matisselesjardinsdematisse.fr
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 |
154 | |||
| 14 |
LADAPT Normandieladapt.net
A non-profit association in France supporting people with disabilities through various services, campaigns, and events to promote inclusion and fight prejudice |
148 | |||
| 15 |
CLINIQUE DES ORMEAUXormeaux.com
Hospital & health care company located in Le Havre, France, providing medical services to patients in need of healthcare |
127 | |||
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 |
EPA HELEN KELLER
A public institution providing support and care to children and adults with disabilities through various services and specialized programs |
124 | |||
| 17 |
Les Escales - EHPAD publics du Havreehpad-lesescales.fr
Les Escales provides specialized care for elderly residents in Le Havre through 6 public nursing homes, alongside home care services |
115 | |||
| 18 |
APEI Seine & Merapeiseinemer.fr
A non-profit association supporting individuals with disabilities and their families, providing services and specialized care through 11 facilities in Dieppe |
113 | |||
| 19 |
CLINIQUE OCEANEclinique-oceane.ramsaysante.fr
Located in Le Havre, Clinique Océane, part of Ramsay Santé group, provides exceptional healthcare services in a welcoming environment since 2012 |
105 | |||
| 20 |
Laboratoire BioLBSbiolbs.fr
A medical biology analysis laboratory specializing in providing diagnostic testing services |
76 | |||
| 21 |
masanté.promasante.pro
The company provides inter-company prevention and health services in Seine-Maritime, focusing on preventing health issues in the workplace through a multidisciplinary approach |
75 | |||
| 22 |
Vidi - nora imagerienora-imagerie.fr
A group of medical imaging centers in Calvados, Eure, and Seine-Maritime, offering various medical imaging and interventional procedures, focusing on patient care |
75 | |||
| 23 |
Centre Hospitalier Durécu-Lavoisier (CHDL)chdl.fr
The company provides medical care and rehabilitation services through nursing homes within the Durécu-Lavoisier Hospital Center and L'Eau Vive |
69 | |||
| 24 |
CHI CAUX VALLEE DE SEINEchi-cauxvalleedeseine.fr
Public healthcare facility providing 24/7 care, ensuring continuity of services, and prohibiting discrimination in patient admission, in accordance with health regulations |
63 | |||
| 25 |
Laboratoire Biocéanebioceane.fr
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 |
56 | |||
| 26 |
Etablissement Public Départemental de Grugnyepd-grugny.fr
A care facility supporting elderly dependent individuals and adults with disabilities in their daily lives, meeting their needs effectively |
52 | |||
| 27 |
Centre Hospitalier du Bois-Petitch-boispetit.fr
Public hospital specializing in elderly care with multiple residences providing nursing, rehabilitation, psychogeriatric, and day care services in Rouen. |
49 | |||
| 28 |
SANTALISsantalis.fr
Network of innovative pharmacies focused on daily health and well-being, offering expert advice, quality service, and fair pricing. |
41 | |||
| 29 |
Centre Hospitalier et EHPAD Asselin Hedelin-Hôpital Yvetot-hopital-yvetot.fr
A local hospital offering medical and rehabilitation services, as well as an EHPAD facility for the elderly in need of care |
39 | |||
| 30 |
ASSOCIATION SPASAD LAJOSAlajosa.fr
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 |
35 | |||
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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
- The largest companies in the Seine-Maritime department 918
- Retail chains in the Seine-Maritime department 97
- Multinational companies in the Seine-Maritime department 89
- Manufacturers in the Seine-Maritime department 72
- Companies with in-house R&D in the Seine-Maritime department 67
- Public sector organisations in the Seine-Maritime department 65
- Distributors and wholesalers in the Seine-Maritime department 53
- Professional services firms in the Seine-Maritime department 51
- Critical infrastructure operators in the Seine-Maritime department 46
- Family-owned companies in the Seine-Maritime department 44
- IT services companies in the Seine-Maritime department 40
- Hardware manufacturers in the Seine-Maritime department 38
- Education providers in the Seine-Maritime department 36
- Logistics companies in the Seine-Maritime department 34
- Financial services firms in the Seine-Maritime department 32
- IT Services and IT Consulting companies in the Seine-Maritime department 30
- Real Estate companies in the Seine-Maritime department 30
- Higher Education companies in the Seine-Maritime department 28
- Software Development companies in the Seine-Maritime department 28
- Government Administration companies in the Seine-Maritime department 27
- Industrial Machinery Manufacturing companies in the Seine-Maritime department 27
- Consulting firms in the Seine-Maritime department 26
- Hospitals and Health Care companies in the Seine-Maritime department 25
The same list elsewhere in France
- Healthcare providers in France 2,244
- Healthcare providers in Île-de-France 583
- Healthcare providers in Auvergne-Rhône-Alpes 248
- Healthcare providers in Provence-Alpes-Côte d'Azur 224
- Healthcare providers in Grand Est 202
- Healthcare providers in Occitanie 194
- Healthcare providers in Nouvelle-Aquitaine 189
- Healthcare providers in Hauts-de-France 143
- Healthcare providers in Pays de la Loire 118
- Healthcare providers in the Hauts-de-Seine department 108
- Healthcare providers in the Bouches-du-Rhône department 107
- Healthcare providers in the Rhône department 104
- Healthcare providers in Brittany 97
- Healthcare providers in the Nord department 82
- Healthcare providers in Normandy 80
- Healthcare providers in the Gironde department 71
- Healthcare providers in Centre-Val de Loire 66
- Healthcare providers in Bourgogne-Franche-Comté 63
- Healthcare providers in the Haute-Garonne department 56
- Healthcare providers in the Alpes-Maritimes department 48
- Healthcare providers in the Hérault department 48
- Healthcare providers in Paris 273
- Healthcare providers in Marseille 57
- Healthcare providers in Lyon 53