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Top 27 research institutes in Madrid

Tamtam tracks 27 research institutes headquartered in Madrid. This list ranks all of them by number of employees on LinkedIn, led by Universidad Complutense de Madrid, Universidad Autónoma de Madrid and CSIC. Their median headcount is 459. Half of them were founded in 1968 or later.

🇪🇸 Madrid27 companiesUpdated Nov 12, 2026

These Madrid-based organizations primarily comprise large public research institutions and universities. They are dedicated to advancing knowledge across various fields, from higher education to specialized scientific research.

Notable entities include the Universidad Complutense de Madrid, a public university offering extensive education and research, and CSIC, a government agency focused on scientific and technological progress. Hospital Universitario La Paz provides specialized healthcare services, while CNIC - Spanish National Center for Cardiovascular Research focuses on cardiovascular health. A common pattern among these institutions is their significant public sector presence and their focus on research, often with a national or international scope.

#CompanyIndustryHeadquarters EmployeesFounded
1
Universidad Complutense de Madriducm.es

A public university in Madrid offering high-quality education, research opportunities, international collaborations, extensive library resources, diverse cultural activities, and sports facilities

Higher Education 🇪🇸 Madrid 14,024 1499
2
Universidad Autónoma de Madriduam.es

Institution recognized for high-quality research, entrepreneurial capacity, teaching excellence, and social commitment. Actively promotes international exchange and training programs.

Higher Education 🇪🇸 Madrid 14,000 1968
3
CSICcsic.es

A government agency in Spain focused on basic and applied scientific research, with 126 centers across various fields promoting scientific and technological progress

Research Services 🇪🇸 Madrid 5,797 1939
4
Hospital Universitario La Pazcomunidad.madrid

A public hospital in Madrid that offers specialized healthcare services to patients from Spain and other countries, with a strong reputation in the healthcare industry

Hospitals and Health Care 🇪🇸 Madrid 3,225 1964
5
Universidad CEU San Pablouspceu.com

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 n/a
6
INIAinia.es

National research center coordinating agricultural and forestry R&D projects in collaboration with socio-economic sectors on a state level

Research Services 🇪🇸 Madrid 1,855 1971
7
CIEMATciemat.es

A public research organization focused on energy, environment, and related technologies to contribute to sustainable development and improve quality of life

Research Services 🇪🇸 Madrid 999 1951
8
Instituto de Salud Carlos IIIisciii.es

A leading public research institution in Spain focused on biomedical research, public health, training, and providing healthcare services to the population

Research Services 🇪🇸 Madrid 948 1986
9
CNIC - Spanish National Center for Cardiovascular Research / Centro Nac. Investigaciones Cardiovasc.cnic.es

A leading international research center dedicated to understanding cardiovascular health, translating knowledge into patient care, and training talented biomedical researchers in Spain

Research Services 🇪🇸 Madrid 822 1999
10
Universidad Villanuevavillanueva.edu

A specialized university in Communication, Law, Education, Business, Health, and Psychology, focused on training professionals to transform society with values

Higher Education 🇪🇸 Madrid 669 1977
11
CNIO - Spanish National Cancer Research Centrecnio.es

A Spanish institution focused on cancer research, diagnosis, and treatment with state-of-the-art facilities, clinical research units, and academic drug discovery program

Research Services 🇪🇸 Madrid 615 1998
12
Instituto Español de Oceanografíaieo.es

A national research center focused on marine sciences, sustainability of fisheries, and marine environment, representing Spain in international forums, with various facilities and fleet

Government Administration 🇪🇸 Madrid 590 1914
13
INSST Instituto Nacional de Seguridad y Salud en el Trabajoinsst.es

Specialized organization analyzing and promoting workplace safety and health conditions, cooperating with government entities, autonomous communities, and relevant organizations to improve safety standards

Utilities 🇪🇸 Madrid 590 1971

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14
Universidad Nacional de Educación a Distancia (UNED)uned.es

A prestigious Spanish distance learning university offering a wide range of undergraduate, postgraduate, and non-degree programs globally since 1972

Higher Education 🇪🇸 Madrid 459 n/a
15
Centro Nacional de Biotecnología (CNB-CSIC)cnb.csic.es

A research center under CSIC focused on developing modern biotechnology, acquiring knowledge, promoting technology transfer, training researchers, and engaging society

Biotechnology Research 🇪🇸 Madrid 443 1992
16
Instituto Nacional de Técnica Aeroespacial «Esteban Terradas»inta.es

The company is a Public Research Agency specialized in dual technological research in aeronautics, space, hydrodynamics, security, and defense sectors

Research Services 🇪🇸 Madrid 440 1942
17
Fundación para la Investigación Biomédica HULPidipaz.es

A non-profit entity managing biomedical research programs in Madrid, aimed at improving healthcare and promoting population health

Research Services 🇪🇸 Madrid 428 2004
18
Centro de Investigación Biomédica en Red CIBERciberisciii.es

A biomedical research network in Spain focusing on translational research, connecting top research groups for industry transfer, led by ISCIII

Research Services 🇪🇸 Madrid 379 2006
19
CEDEX - Centro de Estudios y Experimentación de Obras Públicascedex.es

A public organization specializing in civil engineering, construction, and environmental studies, providing high-level technical support, research, and technological development for public and private sectors

Civil Engineering 🇪🇸 Madrid 328 1957
20
RAE (Real Academia Española)rae.es

Preserving proper use and unity of the Spanish language, a shared heritage of 500 million Spanish speakers, since 1713

Museums, Historical Sites, and Zoos 🇪🇸 Madrid 225 1713
21
Asociacion ICEAicea.es

Leading research association in the Spanish insurance industry, compiling statistics, conducting market analysis, providing training, and representing over 200 insurance companies

Insurance 🇪🇸 Madrid 146 1963
22
Biblioteca Hospital 12 Octubrecendoc.h12o.es

Company specializing in medical research on infectious diseases, with a focus on cytomegalovirus infection in solid organ transplant recipients

Wellness and Fitness Services 🇪🇸 Madrid 43 1973
23
Sociedad Española de Fertilidadsefertilidad.net

A scientific society promoting fertility studies for social issues, advising on reproductive health, and disseminating medical knowledge

Wellness and Fitness Services 🇪🇸 Madrid 39 1953
24
Sociedad Española de Periodoncia y Osteointegraciónsepa.es

The company works in the non-profit sector to promote general well-being through partnerships, education, research, and social action programs

Wellness and Fitness Services 🇪🇸 Madrid 36 n/a
25
Real Academia de la Historiarah.es

Established in 1735, this corporation is dedicated to supporting historical research through its departments, library, biographical dictionary, and antiquities cabinet They also host events

Museums 🇪🇸 Madrid 31 1738
26
Sociedad Española de Alergología e Inmunología Clínicaseaic.org

Founded in 1948, this non-profit scientific society focuses on professional excellence in allergy and related diseases for the benefit of patients

Wellness and Fitness Services 🇪🇸 Madrid 25 1948
27
Sociedad Española de Medicina Geriátricasemeg.es

A non-profit Spanish organization dedicated to promoting the study and development of Geriatrics, conducting research, providing advice, and supporting professional training in elderly care

Wellness and Fitness Services 🇪🇸 Madrid 19 2000

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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 12, 2026.

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