# Foundations headquartered in Spain

Tamtam tracks 148 foundations headquartered in Spain. This list ranks the 50 largest by number of employees on LinkedIn, led by Grupo Social ONCE, CEU Educational Group and ONCE. Their median headcount is 931. Half of them were founded in 1991 or later. The most common headquarters are Madrid (17), Barcelona (13) and Zaragoza (3).

These Spanish foundations primarily operate in education, social services, and banking. Many are well-established institutions, with several founded in the late 19th or early 20th century. Notable examples include Grupo Social ONCE, promoting equality and inclusion; CEU Educational Group, a large Spanish educational provider; Ibercaja, a banking group with extensive branch networks; and Fundación Hospitalarias, offering specialized care for mental health.

A significant concentration of these foundations is headquartered in Madrid, with Barcelona and Zaragoza also featuring prominently. The sectors represented show a strong emphasis on public benefit, ranging from comprehensive educational offerings by institutions like Universitat Internacional de Catalunya and Colegio Sagrado Corazón de Jesús, to social integration efforts by Fundación Diagrama and Aliados por la Integración, highlighting a commitment to societal well-being and development.

🇪🇸 Spain · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Grupo Social ONCE](https://www.tamtam.ai/c/grupo-social-once) (gruposocialonce.com)<br>A partnership organization focused on promoting equality and inclusion, championing initiatives for today and tomorrow | Business Consulting and Services | 🇪🇸 España | 13,034 |  |
| 2 | [CEU Educational Group](https://www.tamtam.ai/c/ceu-educational-group) (ceu.es)<br>Largest Spanish educational group offering diverse programs from early education to postgraduate studies with international collaborations and innovative teaching methods. | Higher Education | 🇪🇸 Madrid | 5,989 | 1933 |
| 3 | [ONCE](https://www.tamtam.ai/c/once) (once.es)<br>The company works for the autonomy and inclusion of blind and visually impaired people through education, employment, and support services | Civic and Social Organizations | 🇪🇸 Madrid | 3,434 | 1938 |
| 4 | [Ibercaja](https://www.tamtam.ai/c/ibercaja) (ibercaja.es)<br>A leading Spanish banking group offering high-quality financial services to individuals, institutions, and businesses through over 1,250 branches and online banking | Banking | 🇪🇸 Zaragoza | 3,278 | 1876 |
| 5 | [Fundación Hospitalarias](https://www.tamtam.ai/c/fundacion-hospitalarias) (fundacionhospitalarias.org)<br>Non-profit institution providing specialized care, assistance, and social reintegration for individuals with mental illness, intellectual disabilities, and other conditions worldwide | Hospitals and Health Care | 🇪🇸 Madrid | 3,112 | 1881 |
| 6 | [Universidad CEU San Pablo](https://www.tamtam.ai/c/universidad-ceu-san-pablo) (uspceu.com)<br>We believe in your talent Transform your vocation into a profession at CEU San Pablo University Work towards your future with us | Higher Education | 🇪🇸 Madrid | 2,861 |  |
| 7 | [Fundación Diagrama](https://www.tamtam.ai/c/fundacion-diagrama) (fundaciondiagrama.es)<br>A foundation established in 1991 dedicated to addressing the needs of vulnerable individuals through human rights advocacy and promoting social integration | Non-profit Organizations | 🇪🇸 Murcia | 2,246 | 1991 |
| 8 | [Universitat Internacional de Catalunya](https://www.tamtam.ai/c/universitat-internacional-de-catalunya) (uic.es)<br>A place for personal and academic development, fostering growth through rigorous academics, university experiences, and enriching life opportunities since 1997 | Higher Education | 🇪🇸 Barcelona | 2,094 | 1997 |
| 9 | [Colegio Sagrado Corazón de Jesús](https://www.tamtam.ai/c/colegio-sagrado-corazon-de-jesus) (colegiosagradocorazondejesus.es)<br>A multilingual private school in Zaragoza focusing on language education, technology integration, personalized tutoring, and offering a wide range of educational activities | Primary and Secondary Education | 🇪🇸 Zaragoza | 1,866 | 1875 |
| 10 | [CEU Cardenal Herrera University](https://www.tamtam.ai/c/ceu-cardenal-herrera-university) (uchceu.es)<br>Leading private educational institution in Spain with 24 centers across all levels, including universities in Madrid, Barcelona, and Valencia with over 26,000 students | Higher Education | 🇪🇸 Valencia | 1,850 |  |
| 11 | [Fundacio Pere Tarres](https://www.tamtam.ai/c/fundacio-pere-tarres) (peretarres.org)<br>A non-profit organization focused on social and educational action since 1957, promoting leisure education for children and youth in various social areas | Non-profit Organizations | 🇪🇸 Barcelona | 1,785 | 1957 |
| 12 | [Grupo SM](https://www.tamtam.ai/c/grupo-sm) (grupo-sm.com)<br>Provides educational, cultural, and training services to children, youth, teachers, families, and institutions across ten Iberoamerican countries. | Book and Periodical Publishing | 🇪🇸 Boadilla del Monte | 1,763 | 1938 |
| 13 | [Fundación Laboral de la Construcción](https://www.tamtam.ai/c/fundacion-laboral-de-la-construccion) (fundacionlaboral.org)<br>The company works to provide resources to companies and workers in the construction sector, aiming for a more professional, safe, and connected industry | Construction | 🇪🇸 Madrid | 1,695 | 1992 |
| 14 | [Aliados por la Integración](https://www.tamtam.ai/c/aliados-por-la-integracion) (aliadosporlaintegracion.org)<br>An organization with over 15 years of experience promoting social and labor inclusion for vulnerable individuals through partnerships with social entities, institutions, and businesses | Individual and Family Services | 🇪🇸 Madrid | 1,600 | 2001 |
| 15 | [Fundació Jesuïtes Educació](https://www.tamtam.ai/c/fundacio-jesuites-educacio) (fje.edu)<br>Offers both formal and informal education, including early childhood, primary, secondary, and vocational training programs | Primary and Secondary Education | 🇪🇸 Barcelona | 1,500 | 2000 |
| 16 | [Fundación Dfa](https://www.tamtam.ai/c/fundacion-dfa) (fundaciondfa.es)<br>A non-profit organization supporting the full social integration and rights of individuals with physical disabilities through services and advocacy | Non-profit Organizations | 🇪🇸 Zaragoza | 1,435 | 1976 |
| 17 | [Fundesplai](https://www.tamtam.ai/c/fundesplai) (fundesplai.org)<br>Non-profit entity dedicated to educating children and youth, strengthening leisure organizations, promoting citizenship and social inclusion, improving the environment, and offering comprehensive educational programs | Civic and Social Organizations | 🇪🇸 El Prat de Llobregat | 1,429 | 1996 |
| 18 | [Universitat de Vic – Universitat Central de Catalunya](https://www.tamtam.ai/c/universitat-de-vic-universitat-central-de-catalunya) (uvic.cat)<br>Public university privately managed through Balmes University Foundation, with contract program and participation in public enrolment and student grant schemes | Higher Education | 🇪🇸 Vic | 1,355 | 1997 |
| 19 | [FUNDACION SUMMA HUMANITATE](https://www.tamtam.ai/c/fundacion-summa-humanitate) (fundacionhumanitate.org)<br>A non-profit foundation supporting Church institutions with management issues to ensure continuity and preservation of their charism and works | Religious Institutions | 🇪🇸 Madrid | 1,200 | 2006 |
| 20 | [Hospital General de Granollers](https://www.tamtam.ai/c/hospital-general-de-granollers) (fphag.org)<br>A healthcare foundation in Catalonia with a hospital and geriatric center, providing medical care, education, research, and training for professionals and students | Hospitals and Health Care | 🇪🇸 Granollers | 1,178 | 1923 |
| 21 | [Fundación Cepaim](https://www.tamtam.ai/c/fundacion-cepaim) (cepaim.org)<br>A Third Sector social organization promoting an inclusive, cohesive, and intercultural society by providing access to citizen rights for vulnerable populations, with innovative projects in Spain | Non-profit Organizations | 🇪🇸 Madrid | 1,120 | 1994 |
| 22 | [Fundación ”la Caixa”](https://www.tamtam.ai/c/fundacion-la-caixa) (fundacionlacaixa.org)<br>A foundation promoting social progress through diverse programs, projects, and support for vulnerable groups, with a focus on human rights and dignity | Non-profit Organizations | 🇪🇸 Barcelona | 1,051 |  |
| 23 | [Fundación Secretariado Gitano](https://www.tamtam.ai/c/fundacion-secretariado-gitano) (gitanos.org)<br>The foundation works to promote social inclusion, equal rights, and access to services for the Roma community in Spain and Europe | Civic and Social Organizations | 🇪🇸 Madrid | 1,022 | 1982 |
| 24 | [Blanquerna - Universitat Ramon Llull](https://www.tamtam.ai/c/blanquerna-universitat-ramon-llull) (blanquerna.edu)<br>Offers university education in Psychology, Education, Health, Communication, and International Relations, with various degrees, masters, and doctoral programs in Barcelona | Higher Education | 🇪🇸 Barcelona | 1,010 | 1948 |
| 25 | [Fundación Ayuda en Acción](https://www.tamtam.ai/c/fundacion-ayuda-en-accion) (ayudaenaccion.org)<br>An independent NGO focused on improving the living conditions of children, families, and communities in disadvantaged regions of America, Asia, and Africa | Non-profit Organizations | 🇪🇸 Madrid | 931 | 1981 |
| 26 | [Colegio Inmaculada Concepción](https://www.tamtam.ai/c/colegio-inmaculada-concepcion) (iccullera.com)<br>A foundation providing education for girls, initially orphans, through a convent school in Valencia, now part of a network of Diocesan Schools | Primary and Secondary Education | 🇪🇸 Cullera | 912 | 1882 |
| 27 | [Clínica Universitaria Reina Fabiola](https://www.tamtam.ai/c/clinica-universitaria-reina-fabiola) (curf.com.ar)<br>A healthcare institution affiliated with a university, providing medical services, training for health science students, and postgraduate education for highly skilled professionals | Hospitals and Health Care | 🇪🇸 Córdoba | 909 | 1959 |
| 28 | [Althaia, Xarxa Assistencial Universitària de Manresa](https://www.tamtam.ai/c/althaia-xarxa-assistencial-universitaria-de-manresa) (althaia.cat)<br>A non-profit foundation providing comprehensive healthcare and social services with a focus on quality, efficiency, and human excellence for over 260,000 residents | Hospitals and Health Care | 🇪🇸 Manresa | 822 |  |
| 29 | [Fundación Don Bosco](https://www.tamtam.ai/c/fundacion-don-bosco) (fundaciondonbosco.es)<br>The Foundation works for the holistic development of disadvantaged youth & families, implementing a unique educational approach and promoting active citizenship and sustainability | Civic and Social Organizations | 🇪🇸 Córdoba | 809 | 1998 |
| 30 | [Getafe](https://www.tamtam.ai/c/getafe) (getafe.fesd.es)<br>An educational institution focused on holistic education inspired by Christian values, fostering respect, collaboration, diversity, and emotional balance from early childhood to high school | Primary and Secondary Education | 🇪🇸 Getafe | 798 |  |
| 31 | [Iberoamerican University Foundation (FUNIBER)](https://www.tamtam.ai/c/iberoamerican-university-foundation-funiber) (funiber.org)<br>An institution offering 160 online Master and Specialization programs in multiple languages, certified by prestigious international universities, with a global presence | Education Administration Programs | 🇪🇸 Barcelona | 773 | 1997 |
| 32 | [Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)](https://www.tamtam.ai/c/institut-d-investigacions-biomediques-august-pi-i-sunyer-idibaps) (clinicbarcelona.org)<br>A leading biomedical research consortium in Barcelona, focused on combining high-quality clinical and basic research to advance healthcare solutions | Research Services | 🇪🇸 Barcelona | 711 | 1996 |
| 33 | [FUNDAE Fundación Estatal para la Formación en el Empleo](https://www.tamtam.ai/c/fundae-fundacion-estatal-para-la-formacion-en-el-empleo) (fundae.es)<br>Public institution managing employment training funds, providing financial aid and training programs to enhance workforce skills and competitiveness. | Utilities | 🇪🇸 Madrid | 690 | 1992 |
| 34 | [EDEM Escuela de Empresarios](https://www.tamtam.ai/c/edem-escuela-de-empresarios) (edem.eu)<br>A business school in Valencia focused on training entrepreneurs and leaders, promoting entrepreneurship and sharing successful experiences within the business community | Professional Training and Coaching | 🇪🇸 Valencia | 677 | 2002 |
| 35 | [Nazaret](https://www.tamtam.ai/c/nazaret) (nazaret.eus)<br>Professional training center specializing in business and sociocultural management, offering personalized competency development paths for youth, adults, and professionals seeking continuous learning | Education | 🇪🇸 Donostia | 653 | 1920 |
| 36 | [Tekniker](https://www.tamtam.ai/c/tekniker) (tekniker.es)<br>A technology center specializing in Advanced Manufacturing, Material Engineering, and ICTs to enhance society's growth and competitiveness sustainably | Research Services | 🇪🇸 Eibar | 619 | 1981 |
| 37 | [FUNDACIÓN SALUD Y COMUNIDAD](https://www.tamtam.ai/c/fundacion-salud-y-comunidad) (fsyc.org)<br>A non-profit organization with national and international reach that focuses on promoting, creating, and managing quality services for social and health issues Founded in 1997 | Civic and Social Organizations | 🇪🇸 Barcelona | 576 | 1997 |
| 38 | [Teatro Real](https://www.tamtam.ai/c/teatro-real) (teatroreal.es)<br>The Teatro Real is a leading national opera institution in Spain, with a strong international presence, focusing on music and performing arts | Performing Arts | 🇪🇸 Madrid | 566 | 1818 |
| 39 | [Fundación Adecco](https://www.tamtam.ai/c/fundacion-adecco) (fundacionadecco.org)<br>The company supports employment inclusion for vulnerable individuals and provides HR solutions for socially responsible businesses in Spain | Human Resources Services | 🇪🇸 Madrid | 563 | 1999 |
| 40 | [Fundación Cibervoluntarios - Cybervolunteers Foundation](https://www.tamtam.ai/c/fundacion-cibervoluntarios-cybervolunteers-foundation) (cibervoluntarios.org)<br>A pioneering organization in technology volunteering, empowering people through technology across Spain with the help of volunteers and collaborations | Civic and Social Organizations | 🇪🇸 Madrid | 548 | 2001 |
| 41 | [Andalucía Emprende, Fundación Pública Andaluza](https://www.tamtam.ai/c/andalucia-emprende-fundacion-publica-andaluza) (andaluciaemprende.es)<br>A public foundation funded by the government of Andalusia, focusing on supporting potential entrepreneurs, promoting innovation, and fostering public-private collaboration for business development | Government Administration | 🇪🇸 Seville | 544 | 1999 |
| 42 | [Unidos en Red](https://www.tamtam.ai/c/unidos-en-red) (unidosenred.org)<br>A network committed to sustainable development, connecting and accelerating social impact projects with expertise and knowledge to make a difference in more lives each day | Non-profit Organizations | 🇪🇸 Madrid | 543 | 2012 |
| 43 | [Hospital del Mar Research Institute](https://www.tamtam.ai/c/hospital-del-mar-research-institute) (researchmar.net)<br>A public biomedical research center located at The PRBB, dedicated to advancing healthcare through research conducted by Hospital del Mar and ICREA | Research Services | 🇪🇸 Barcelona | 525 |  |
| 44 | [Centre for Genomic Regulation (CRG)](https://www.tamtam.ai/c/centre-for-genomic-regulation-crg) (crg.eu)<br>An international biomedical research institute focused on advancing scientific knowledge for public health, genetic diseases, and economic prosperity through interdisciplinary collaboration | Biotechnology Research | 🇪🇸 Barcelona | 504 | 2000 |
| 45 | [Sagrada Família](https://www.tamtam.ai/c/sagrada-familia) (sagradafamilia.org)<br>Construction and preservation of the Sagrada Família Expiatory Temple in Barcelona, founded by Josep Maria Bocabella and designed by Antoni Gaudí | Religious Institutions | 🇪🇸 Barcelona | 500 |  |
| 46 | [Residencia de mayores](https://www.tamtam.ai/c/residencia-de-mayores) (geron.es)<br>A senior care residence providing high-quality and compassionate care services to elderly individuals in need of assistance and support | Hospitals and Health Care | 🇪🇸 Madrid | 499 | 1977 |
| 47 | [Fundació Puigvert](https://www.tamtam.ai/c/fundacio-puigvert) (fundacio-puigvert.es)<br>Specialized medical institution focused on urology, nephrology, andrology, and reproductive medicine, offering high expertise in robotic surgery and renal transplants | Hospitals and Health Care | 🇪🇸 Barcelona | 492 | 1961 |
| 48 | [Universitat Abat Oliba CEU](https://www.tamtam.ai/c/universitat-abat-oliba-ceu) (uaoceu.es)<br>A higher education institution founded in 1973, affiliated with the University of Barcelona and officially recognized as a university in 2003 | Higher Education | 🇪🇸 Barcelona | 492 |  |
| 49 | [Fundación Manantial](https://www.tamtam.ai/c/fundacion-manantial) (fundacionmanantial.org)<br>A non-profit organization providing comprehensive care for individuals with mental health issues, offering employment opportunities and various services to support their recovery | Mental Health Care | 🇪🇸 Madrid | 463 | 1995 |
| 50 | [Lantegi Batuak](https://www.tamtam.ai/c/lantegi-batuak) (lantegibatuak.eus)<br>A non-profit organization in Bizkaia providing quality job opportunities for individuals with disabilities, focusing on their development through various vocational programs and services | Non-profit Organizations | 🇪🇸 Loiu | 461 | 1983 |

## 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 Spain

- [The largest companies in Spain](https://www.tamtam.ai/l/largest-companies-spain) (10,893)
- [Multinational companies in Spain](https://www.tamtam.ai/l/multinational-companies-spain) (2,706)
- [Retail chains in Spain](https://www.tamtam.ai/l/retail-chains-spain) (1,251)
- [Manufacturers in Spain](https://www.tamtam.ai/l/manufacturers-spain) (1,080)
- [Companies with in-house R&D in Spain](https://www.tamtam.ai/l/r-and-d-companies-spain) (1,067)
- [Wellness and Fitness Services companies in Spain](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-spain) (879)
- [Healthcare providers in Spain](https://www.tamtam.ai/l/healthcare-providers-spain) (711)
- [Companies with a mobile app in Spain](https://www.tamtam.ai/l/companies-with-mobile-app-spain) (561)
- [Hotel and hospitality groups in Spain](https://www.tamtam.ai/l/hospitality-groups-spain) (539)
- [Family-owned companies in Spain](https://www.tamtam.ai/l/family-owned-companies-spain) (531)
- [Software Development companies in Spain](https://www.tamtam.ai/l/software-development-companies-spain) (530)
- [Professional services firms in Spain](https://www.tamtam.ai/l/professional-services-firms-spain) (522)
- [Critical infrastructure operators in Spain](https://www.tamtam.ai/l/critical-infrastructure-operators-spain) (517)
- [IT services companies in Spain](https://www.tamtam.ai/l/it-services-companies-spain) (484)
- [Financial services firms in Spain](https://www.tamtam.ai/l/financial-services-firms-spain) (482)
- [Food and Beverage Services companies in Spain](https://www.tamtam.ai/l/food-and-beverage-services-companies-spain) (462)
- [SaaS companies in Spain](https://www.tamtam.ai/l/saas-companies-spain) (445)
- [Retail Apparel and Fashion companies in Spain](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-spain) (439)
- [IT Services and IT Consulting companies in Spain](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-spain) (437)
- [Hospitality companies in Spain](https://www.tamtam.ai/l/hospitality-companies-spain) (435)
- [Consulting firms in Spain](https://www.tamtam.ai/l/consulting-firms-spain) (420)
- [E-commerce companies in Spain](https://www.tamtam.ai/l/ecommerce-companies-spain) (416)
- [Food and beverage companies in Spain](https://www.tamtam.ai/l/food-and-beverage-companies-spain) (416)
- [Hardware manufacturers in Spain](https://www.tamtam.ai/l/hardware-companies-spain) (415)

## The same list elsewhere in Spain

- [Foundations in Community of Madrid](https://www.tamtam.ai/l/foundations-community-of-madrid) (56)
- [Foundations in Catalonia](https://www.tamtam.ai/l/foundations-catalonia) (46)
- [Foundations in Madrid](https://www.tamtam.ai/l/foundations-madrid) (51)
- [Foundations in Barcelona](https://www.tamtam.ai/l/foundations-barcelona) (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-spain