# 30 leading foundations in Paris

Tamtam tracks 172 foundations headquartered in Paris. This list ranks the 30 largest by number of employees on LinkedIn, led by Institut Pasteur, Apprentis d'Auteuil and Institut Curie. Their median headcount is 487. Half of them were founded in 1948 or later.

These foundations in Paris are primarily engaged in social welfare, healthcare, and research. They include large established organizations like Institut Pasteur, a biomedical research foundation, and Apprentis d'Auteuil, which educates disadvantaged youth. Institut Curie combines cancer research and innovative healthcare, while Hôpitaux Saint-Joseph & Marie-Lannelongue offers comprehensive hospital services. SOS Villages d'Enfants supports orphaned children, and Fondation Adolphe de Rothschild specializes in head and neck pathologies.

A notable pattern among these foundations is their long history, with many established in the late 19th and early 20th centuries. For instance, Institut Pasteur was founded in 1887, Apprentis d'Auteuil in 1866, and Fondation Léopold Bellan in 1884. This indicates a strong tradition of philanthropic and public service institutions in the city.

🇫🇷 Paris · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Institut Pasteur](https://www.tamtam.ai/c/institut-pasteur) (pasteur.fr)<br>Non-profit foundation specializing in biomedical research, public health, training, and technological innovation to combat infectious diseases worldwide. | Research Services | 🇫🇷 Paris | 4,743 | 1887 |
| 2 | [Apprentis d'Auteuil](https://www.tamtam.ai/c/apprentis-d-auteuil) (apprentis-auteuil.org)<br>Educate and train over 13,000 disadvantaged youth, support family parental responsibilities, promote social integration and personal responsibility. | Non-profit Organizations | 🇫🇷 Paris | 4,096 | 1866 |
| 3 | [Institut Curie](https://www.tamtam.ai/c/institut-curie) (curie.fr)<br>A public utility foundation combining cancer research, innovative healthcare, and multidisciplinary approach to fight cancer through fundamental, translational, and clinical research | Hospitals and Health Care | 🇫🇷 Paris | 3,105 | 1909 |
| 4 | [Hôpitaux Saint-Joseph & Marie-Lannelongue](https://www.tamtam.ai/c/hopitaux-saint-joseph-and-marie-lannelongue) (fhsj.fr)<br>Specialized hospital providing comprehensive services in medicine, surgery, and obstetrics, focusing on patient care and medical treatments. | Hospitals and Health Care | 🇫🇷 Paris | 2,221 |  |
| 5 | [SOS Villages d'Enfants](https://www.tamtam.ai/c/sos-villages-d-enfants) (sosve.org)<br>Providing family-like care and support to orphaned siblings, ensuring emotional and educational stability until independence worldwide. | Civic and Social Organizations | 🇫🇷 Paris | 2,197 | 1956 |
| 6 | [Fondation Adolphe de Rothschild](https://www.tamtam.ai/c/fondation-adolphe-de-rothschild) (for.paris)<br>Specializes in head and neck pathologies for adults and children, offering excellent care, research, and training at a conventional rate in Paris. | Hospitals and Health Care | 🇫🇷 Paris | 1,481 | 1905 |
| 7 | [Institut du Cerveau – Paris Brain Institute](https://www.tamtam.ai/c/institut-du-cerveau-paris-brain-institute) (institutducerveau.org)<br>Research center focused on brain studies, developing treatments for neurological diseases through collaboration among patients, doctors, researchers, and entrepreneurs. | Biotechnology Research | 🇫🇷 Paris | 806 | 2010 |
| 8 | [Petits Frères des Pauvres](https://www.tamtam.ai/c/petits-freres-des-pauvres) (petitsfreresdespauvres.fr)<br>fight elderly isolation and loneliness, support vulnerable seniors, promote social inclusion, and foster meaningful connections for aging individuals | Non-profit Organizations | 🇫🇷 Paris | 735 | 1946 |
| 9 | [SOLIHA](https://www.tamtam.ai/c/soliha) (soliha.fr)<br>Supports individuals, elderly, and disabled for better housing, energy transition, fights substandard homes, mobilizes private housing for social good, creates insertion housing, revitalizes neighborhoods. | Civic and Social Organizations | 🇫🇷 Paris | 734 | 2015 |
| 10 | [FONDATION LEOPOLD BELLAN](https://www.tamtam.ai/c/fondation-leopold-bellan) (bellan.fr)<br>The foundation manages 78 innovative establishments and services in various sectors including childcare, youth support, disability services, elderly care, and healthcare | Hospitals and Health Care | 🇫🇷 Paris | 726 | 1884 |
| 11 | [Fondation ANAIS](https://www.tamtam.ai/c/fondation-anais) (fondation-anais.org)<br>Support personal development, social and professional integration for people with disabilities through medical-social services and economic activity programs. | Civic and Social Organizations | 🇫🇷 Paris | 604 | 1954 |
| 12 | [Fondation de l'Armée du Salut](https://www.tamtam.ai/c/fondation-de-l-armee-du-salut) (armeedusalut.fr)<br>Provide emergency aid, social reintegration, and prevention services through numerous establishments, supported by volunteers, employees, and donors. | Civic and Social Organizations | 🇫🇷 Paris | 583 | 1881 |
| 13 | [Fondation Santé des Etudiants de France](https://www.tamtam.ai/c/fondation-sante-des-etudiants-de-france) (fsef.net)<br>Providing comprehensive health support for adolescents and young adults, including psychiatric care, rehabilitation, prevention, social reinsertion, and hospital-university research programs. | Hospitals and Health Care | 🇫🇷 Paris | 541 | 1924 |
| 14 | [ACTION ENFANCE](https://www.tamtam.ai/c/action-enfance) (actionenfance.org)<br>Foundation providing stable, protective environments for siblings separated from families, supporting their education, growth, and social integration. | Non-profit Organizations | 🇫🇷 Paris | 536 | 1943 |
| 15 | [FONDATION OEUVRE DE LA CROIX ST- SIMON](https://www.tamtam.ai/c/fondation-oeuvre-de-la-croix-st-simon) (croix-saint-simon.org)<br>A foundation providing a range of services to families from birth to end of life, catering to vulnerable populations through healthcare and education | Civic and Social Organizations | 🇫🇷 Paris | 487 | 1906 |
| 16 | [Fondation de France](https://www.tamtam.ai/c/fondation-de-france) (fondationdefrance.org)<br>Encouraging and supporting diverse social projects through expert collaboration, volunteer engagement, and managing numerous foundations across France. | Fundraising | 🇫🇷 Paris | 428 | 1969 |
| 17 | [Fondation COS Alexandre Glasberg](https://www.tamtam.ai/c/fondation-cos-alexandre-glasberg) (fondationcos.org)<br>The organization manages over 60 facilities in France to care for elderly, support individuals with disabilities, aid refugees, and assist those in extreme social precarity | Civic and Social Organizations | 🇫🇷 Paris | 396 | 1944 |
| 18 | [Jean Cotxet Foundation](https://www.tamtam.ai/c/jean-cotxet-foundation) (jean-cotxet.fr)<br>A public utility association in Paris, founded in 1959, dedicated to protecting children with 33 facilities and 1000 employees serving 4000 individuals annually | Civic and Social Organizations | 🇫🇷 Paris | 395 | 1959 |
| 19 | [FONDATION OLGA SPITZER](https://www.tamtam.ai/c/fondation-olga-spitzer) (fondationolgaspitzer.fr)<br>An individual & family services company located in Paris, France, providing support and assistance to clients in various aspects of their lives | Civic and Social Organizations | 🇫🇷 Paris | 393 | 1923 |
| 20 | [Fondation Saint Jean de Dieu](https://www.tamtam.ai/c/fondation-saint-jean-de-dieu) (fondation-saintjeandedieu.fr)<br>Providing healthcare, social, and medico-social services to over 20,000 vulnerable individuals annually across multiple regions with dedicated staff. | Hospitals and Health Care | 🇫🇷 Paris | 357 | 2012 |
| 21 | [Institut du monde arabe](https://www.tamtam.ai/c/institut-du-monde-arabe) (imarabe.org)<br>Cultural institution promoting Arab civilization, language, and development; fostering Franco-Arab exchanges in culture, science, and cooperation. | Artists and Writers | 🇫🇷 Paris | 302 | 1980 |
| 22 | [Fondation de Rothschild](https://www.tamtam.ai/c/fondation-de-rothschild) (fondation-de-rothschild.fr)<br>Supports vulnerable people, including elderly, children, and disabled adults, providing care, education, and rehabilitation services since 1852. | Hospitals and Health Care | 🇫🇷 Paris | 295 |  |
| 23 | [Ifri - Institut français des relations internationales](https://www.tamtam.ai/c/ifri-institut-francais-des-relations-internationales) (ifri.org)<br>Leading independent research institute in France, specializing in international affairs and global governance Conducts policy-oriented research, hosts debates, and publishes influential publications | Think Tanks | 🇫🇷 Paris | 275 | 1979 |
| 24 | [Fondation Cognacq-Jay](https://www.tamtam.ai/c/fondation-cognacq-jay) (cognacq-jay.fr)<br>Provide healthcare, social protection, child welfare, and education services across multiple establishments supporting vulnerable individuals throughout life stages. | Civic and Social Organizations | 🇫🇷 Paris | 263 | 1916 |
| 25 | [Fondation l'Élan Retrouvé](https://www.tamtam.ai/c/fondation-l-elan-retrouve) (elan-retrouve.org)<br>supporting disabled individuals through therapeutic work, promoting personal autonomy, social integration, and patient involvement in care decisions. | Mental Health Care | 🇫🇷 Paris | 260 | 1948 |
| 26 | [SeaBird](https://www.tamtam.ai/c/seabird) (seabirdconseil.com)<br>Consulting firm specializing in operational strategy, transformation, and performance improvement for insurance, banking, and asset management sectors with human-centered solutions. | Financial Services | 🇫🇷 Paris | 254 | 2005 |
| 27 | [Fondation pour le Logement des Défavorisés](https://www.tamtam.ai/c/fondation-pour-le-logement-des-defavorises) (fondationpourlelogement.fr)<br>Non-profit organization fighting housing insecurity, poverty, and exclusion, creating shelters and supporting over 500 associations to improve living conditions for disadvantaged individuals. | Non-profit Organizations | 🇫🇷 Paris | 218 | 1987 |
| 28 | [Cité internationale universitaire de Paris](https://www.tamtam.ai/c/cite-internationale-universitaire-de-paris) (ciup.fr)<br>Provides housing and cultural exchange opportunities for students, researchers, artists, and athletes from over 150 nationalities in Paris. | Education Administration Programs | 🇫🇷 Paris | 216 | 1925 |
| 29 | [Mémorial de la Shoah](https://www.tamtam.ai/c/memorial-de-la-shoah) (memorialdelashoah.org)<br>A memorial in Paris educates new generations on the Holocaust to combat racism and intolerance through various activities and exhibits | Museums, Historical Sites, and Zoos | 🇫🇷 Paris | 185 | 2005 |
| 30 | [Art Explora](https://www.tamtam.ai/c/art-explora) (artexplora.org)<br>International foundation promoting arts access, participation, and engagement through digital technology, partnerships, and innovative cultural experiences worldwide. | Non-profit Organizations | 🇫🇷 Paris | 179 | 2019 |

## 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 12, 2026.

## More company lists in Paris

- [The largest companies in Paris](https://www.tamtam.ai/l/largest-companies-paris) (22,789)
- [Multinational companies in Paris](https://www.tamtam.ai/l/multinational-companies-paris) (3,531)
- [Professional services firms in Paris](https://www.tamtam.ai/l/professional-services-firms-paris) (2,241)
- [SaaS companies in Paris](https://www.tamtam.ai/l/saas-companies-paris) (2,218)
- [IT Services and IT Consulting companies in Paris](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-paris) (1,547)
- [Consulting firms in Paris](https://www.tamtam.ai/l/consulting-firms-paris) (1,532)
- [Retail chains in Paris](https://www.tamtam.ai/l/retail-chains-paris) (1,491)
- [Software Development companies in Paris](https://www.tamtam.ai/l/software-development-companies-paris) (1,413)
- [IT services companies in Paris](https://www.tamtam.ai/l/it-services-companies-paris) (1,386)
- [Financial services firms in Paris](https://www.tamtam.ai/l/financial-services-firms-paris) (1,361)
- [Business Consulting and Services companies in Paris](https://www.tamtam.ai/l/business-consulting-and-services-companies-paris) (1,360)
- [Law Practice companies in Paris](https://www.tamtam.ai/l/law-practice-companies-paris) (1,289)
- [Companies with in-house R&D in Paris](https://www.tamtam.ai/l/r-and-d-companies-paris) (1,249)
- [Subscription businesses in Paris](https://www.tamtam.ai/l/subscription-businesses-paris) (1,004)
- [Financial Services companies in Paris](https://www.tamtam.ai/l/financial-services-companies-paris) (999)
- [Advertising Services companies in Paris](https://www.tamtam.ai/l/advertising-services-companies-paris) (832)
- [Marketing and communications agencies in Paris](https://www.tamtam.ai/l/marketing-agencies-paris) (812)
- [Education providers in Paris](https://www.tamtam.ai/l/education-companies-paris) (812)
- [Technology, Information and Internet companies in Paris](https://www.tamtam.ai/l/technology-information-and-internet-companies-paris) (807)
- [Companies with a mobile app in Paris](https://www.tamtam.ai/l/companies-with-mobile-app-paris) (764)
- [AI companies in Paris](https://www.tamtam.ai/l/ai-companies-paris) (743)
- [Recruitment and staffing agencies in Paris](https://www.tamtam.ai/l/recruitment-agencies-paris) (727)
- [Luxury brands in Paris](https://www.tamtam.ai/l/luxury-brands-paris) (713)
- [Real Estate companies in Paris](https://www.tamtam.ai/l/real-estate-companies-paris) (627)

## The same list elsewhere in France

- [Foundations in France](https://www.tamtam.ai/l/foundations-france) (426)
- [Foundations in Île-de-France](https://www.tamtam.ai/l/foundations-ile-de-france) (234)
- [Foundations in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/foundations-auvergne-rhone-alpes) (45)
- [Foundations in the Hauts-de-Seine department](https://www.tamtam.ai/l/foundations-hauts-de-seine) (37)
- [Foundations in the Rhône department](https://www.tamtam.ai/l/foundations-rhone) (26)
- [Foundations in Grand Est](https://www.tamtam.ai/l/foundations-grand-est) (25)

## The same list elsewhere

- [Foundations in the world](https://www.tamtam.ai/l/foundations-in-the-world) (1,835)
- [Foundations in Europe](https://www.tamtam.ai/l/foundations-in-europe) (1,147)

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Source: https://www.tamtam.ai/l/foundations-paris