The companies listed in Hauts-de-Seine are primarily healthcare providers, ranging from large non-profit organizations to specialized medical services. Noteworthy entities include Croix-Rouge française, managing a network of health and medico-social establishments, and CERBA HEALTHCARE, a key player in medical diagnosis. Other significant firms are DomusVi France, focused on elderly care, and Optic 2000, a major optical retailer. The list also features Hopital Foch, providing medical and surgical services, and Vitalliance, which offers home care support.
Most of these companies are well-established, with several founded in the 20th century, such as Hopital Foch (1937) and Optic 2000 (1969). A notable pattern is the concentration of headquarters in specific cities within the department, with Issy-les-Moulineaux, Montrouge, and Suresnes frequently appearing as corporate bases for these healthcare and related service providers.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Croix-Rouge françaisecroix-rouge.fr
Manages a network of health, medico-social, and training establishments and services, employing staff dedicated to assisting vulnerable populations. |
10,865 | |||
| 2 |
CERBA HEALTHCAREcerbahealthcare.com
A leading player in medical diagnosis focusing on prevention, disease detection, early diagnosis, and personalized medicine to advance health worldwide |
4,406 | |||
| 3 |
DomusVi Francedomusvi.com
Provides elderly care through innovative therapies and social services while focusing on professional employee development to improve quality of life for residents. |
4,373 | |||
| 4 |
Cerballiancecerballiance.fr
A network of medical laboratories in France and Reunion Island, offering a wide range of high-quality services from initial testing to specialized diagnostics and treatment monitoring |
2,775 | |||
| 5 |
Optic 2000optic2000.com
A leading optical retailer, offering a wide range of visual solutions and services through its extensive network of stores, focusing on customer needs and health. |
2,724 | |||
| 6 |
Vitalliancevitalliance.fr
Provides comprehensive home care support for individuals experiencing loss of autonomy, assisting with daily living, administrative tasks, and social interaction, including inclusive housing projects. |
2,702 | |||
| 7 |
Hopital Fochhopital-foch.com
Provides high-quality medical and surgical services in a comfortable environment, ensuring accessibility and innovation for all patients without discrimination. |
2,691 | |||
| 8 |
VitalAirevitalaire.com
Empowering individuals with chronic diseases at home through personalized support, collaborating with healthcare professionals, and transforming healthcare systems by integrating home care pathways. |
2,333 | |||
| 9 |
Atol les Opticiensrejoindreatol.com
Fifty-year-old French cooperative network with 793 stores, specializing in optical and hearing health, fashionable eyewear, and innovative connected glasses and hearing solutions. |
1,370 | |||
| 10 | 1,264 | ||||
| 11 |
Fondation Partage et Viefondationpartageetvie.org
A public utility Foundation providing care and support for individuals facing loss of autonomy, with 127 establishments across France Innovating and improving quality of life |
1,183 | |||
| 12 |
Onela (Etre bien chez soi)onela.com
specializes in home assistance for elderly, disabled, and recovering individuals, supporting over 12,000 people nationwide with quality care |
955 | |||
| 13 |
American Hospital of Parisamerican-hospital.org
Not-for-profit multispecialty hospital offering advanced medical technology and comprehensive care to local and international patients in Paris. |
860 | |||
| 14 |
Dentegodentego.fr
Dentego dental health centers provide accessible and high-quality dental care across France, focusing on patient and staff satisfaction and using advanced technology |
805 | |||
| 15 |
ARPAVIEgroupesos-seniors.org
A leading non-profit association managing 126 elderly residences in France, offering varied services and accommodation options to promote autonomy in senior living |
785 | |||
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 |
ACMS - Pour la santé au travailasso.fr
France's largest inter-company occupational health service, monitoring over one million employees across 80,000 workplaces in eight Île-de-France departments, covering various industries. |
767 | |||
| 17 |
domidomdomidom.fr
Provides personalized home services including cleaning, meal prep, shopping, gardening, DIY, and support for vulnerable individuals, ensuring clients enjoy their lives without daily constraints. |
659 | |||
| 18 |
Fondation Des Amis de l'Atelierfondation-amisdelatelier.org
Dedicated to individuals with psychic and mental disabilities, offering specialized services including accommodation, care, educational support, and vocational integration within 66 facilities. |
633 | |||
| 19 |
FONDATION PERCE-NEIGEperce-neige.org
Provide specialized housing, support families, advocate for disabled individuals, support autism education, and promote research for people with disabilities. |
620 | |||
| 20 |
ISIS MEDICALisismedical.fr
Federation of regional SMEs providing quality, responsive patient support and treatment adherence assistance with a focus on listening and safety. |
523 | |||
| 21 | 518 | ||||
| 22 |
Audiensaudiens.org
Audiens provides tailored social protection solutions for the culture and media sectors, including retirement, health, and support services, promoting diversity, inclusion, and well-being |
507 | |||
| 23 |
Centre Hospitalier des Quatre Villes - CH4Vch4v.fr
Public healthcare facility with 598 beds, formed by merging two hospitals, employing 1,200 staff to provide medical services. |
501 | |||
| 24 |
CMC Ambroise Paré / Pierre Cherest / Hartmannambroisepare.fr
Operates three certified clinics in Neuilly-sur-Seine, near Porte Maillot, providing complete and outpatient hospitalization to nearly 50,000 patients annually. |
496 | |||
| 25 |
HOPITAL PRIVE D'ANTONYhopital-prive-antony.ramsaysante.fr
Large private hospital near Paris, providing medical, surgical, and maternity services, including outpatient care, for thousands of patients annually. |
490 | |||
| 26 |
L'ESSORlessor.asso.fr
Providing social and medical support services to individuals facing social difficulties, family issues, or disabilities, promoting dignity and citizenship. |
427 | |||
| 27 |
FONDATION SANTE SERVICEfondation-santeservice.fr
Providing multidisciplinary home hospitalization and nursing care for acute and chronic patients, supporting family-centered care and healthcare professional training. |
419 | |||
| 28 |
Hôpital Marie-Lannelonguehopitalmarielannelongue.fr
A non-profit private hospital specializing in surgical treatment of cardiac, pulmonary, and vascular conditions from newborns to adults |
394 | |||
| 29 |
Mairie de Bagneuxbagneux92.fr
Provides job and internship opportunities, recruitment information, and application guidance for municipal positions in the city of Bagneux. |
388 | |||
| 30 |
Hôpital National d’Instruction des Armées Percyhiapercy.sante.defense.gouv.fr
Military hospital providing trauma care, critical medical services, and support to armed forces and public health with 300+ beds. |
298 | |||
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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 13, 2026.
More company lists in the Hauts-de-Seine department
- The largest companies in the Hauts-de-Seine department 5,158
- Multinational companies in the Hauts-de-Seine department 1,231
- IT services companies in the Hauts-de-Seine department 737
- IT Services and IT Consulting companies in the Hauts-de-Seine department 706
- Professional services firms in the Hauts-de-Seine department 629
- Consulting firms in the Hauts-de-Seine department 563
- Companies with in-house R&D in the Hauts-de-Seine department 510
- SaaS companies in the Hauts-de-Seine department 389
- Business Consulting and Services companies in the Hauts-de-Seine department 304
- Software Development companies in the Hauts-de-Seine department 301
- Retail chains in the Hauts-de-Seine department 292
- Manufacturers in the Hauts-de-Seine department 285
- Advertising Services companies in the Hauts-de-Seine department 281
- Marketing and communications agencies in the Hauts-de-Seine department 235
- Subscription businesses in the Hauts-de-Seine department 228
- Hardware manufacturers in the Hauts-de-Seine department 199
- Financial services firms in the Hauts-de-Seine department 198
- Companies with a mobile app in the Hauts-de-Seine department 189
- Critical infrastructure operators in the Hauts-de-Seine department 169
- AI companies in the Hauts-de-Seine department 159
- Education providers in the Hauts-de-Seine department 159
- Cybersecurity companies in the Hauts-de-Seine department 154
- Distributors and wholesalers in the Hauts-de-Seine department 154
- Recruitment and staffing agencies in the Hauts-de-Seine department 152
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 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 the Loire-Atlantique department 45
- Healthcare providers in Paris 273
- Healthcare providers in Marseille 57
- Healthcare providers in Lyon 53