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List of research institutes in Rio de Janeiro State

Tamtam tracks 33 research institutes headquartered in Rio de Janeiro State. This list ranks all of them by number of employees on LinkedIn, led by Federal University of Rio de Janeiro, UERJ and Universidade Federal do Rio de Janeiro. Their median headcount is 725. Half of them were founded in 1952 or later. The most common headquarters are Rio de Janeiro (28) and Niterói (2).

🇧🇷 Rio de Janeiro State33 companiesUpdated Nov 12, 2026

The research institutes in Rio de Janeiro State are primarily higher education institutions, often very large, alongside some major public health research centers. Most of these organizations are well-established, with many founded in the early to mid-20th century.

Key players include the Federal University of Rio de Janeiro, an internationally respected institution, and UERJ, a leading university with 15 campuses. FIOCRUZ - Fundação Oswaldo Cruz focuses on biological sciences and public health research. Bio-Manguinhos / Fiocruz produces vaccines and diagnostic kits. A notable pattern is the concentration of these large institutions in the city of Rio de Janeiro itself.

#CompanyIndustryHeadquarters EmployeesFounded
1
Federal University of Rio de Janeiroufrj.br

A well-established and internationally respected institution, with historical roots dating back to the 18th century, offering a wide range of academic programs

Higher Education 🇧🇷 Rio de Janeiro 10,389 1920
2
UERJuerj.br

A leading university established in 1950, offering undergraduate, graduate, and basic education programs across 15 campuses, with around 40,000 students and a diverse faculty

Education Administration Programs 🇧🇷 Rio de Janeiro 10,067 1950
3
Universidade Federal do Rio de Janeiroufrj.br

Higher education institution empowering individuals to excel in professions, value diverse knowledge, engage as active citizens, and drive societal transformation towards justice and democracy

Higher Education 🇧🇷 Rio de Janeiro 9,556 n/a
4
Universidade Federal Fluminenseuff.br

A leading educational institution with diverse programs including undergraduate and graduate courses, as well as specialization and medical residency programs

Higher Education 🇧🇷 Niterói 8,445 1960
5
FIOCRUZ - Fundação Oswaldo Cruzen.wikipedia.org

A Brazilian institution focused on research and development in biological sciences, specializing in public health research and founded by Dr Oswaldo Cruz in 1900

Truck Transportation 🇧🇷 Rio de Janeiro 4,448 1900
6
Fiocruzfiocruz.br

Promoting health and social development, generating and disseminating scientific and technological knowledge, and promoting citizenship through healthcare research and technology

Pharmaceutical Manufacturing 🇧🇷 Rio de Janeiro 3,625 1900
7
Universidade Federal Rural do Rio de Janeiroufrrj.br

A Brazilian university founded in 1910, offering agriculture and veterinary education with the largest campus in Latin America

Higher Education 🇧🇷 Seropédica 3,276 n/a
8
Bio-Manguinhos / Fiocruzbio.fiocruz.br

A leading unit of a health foundation, producing vaccines, diagnostic kits, and biopharmaceuticals since 1976 to meet public health needs

Biotechnology Research 🇧🇷 Rio de Janeiro 1,665 1976
9
RNPrnp.br

Provides secure, high-capacity internet and personalized services, promoting innovation for education and research across Brazil, connecting universities, institutes, and technology hubs.

Technology, Information and Internet 🇧🇷 Rio de Janeiro 1,336 1989
10
Fundação Oswaldo Cruz (Fiocruz)fiocruz.br

Public health institution affiliated with the Ministry of Health, dedicated to healthcare services and initiatives in the public sector

Public Health 🇧🇷 Rio de Janeiro 1,328 1900
11
Universidade Candido Mendescandidomendes.edu.br

The company is the oldest private institution of higher education in Brazil, offering research, postgraduate programs, seminars with renowned speakers, and various undergraduate courses

Higher Education 🇧🇷 Rio de Janeiro 1,243 1902
12
IFF - Instituto Federal Fluminenseportal1.iff.edu.br

A specialized educational institution offering a range of professional and technological education programs across various campuses

Higher Education 🇧🇷 Macaé 1,154 1909
13
UNIRIO

A federal institution of higher education in Rio de Janeiro offering undergraduate, graduate, and extension programs in various academic fields

Higher Education 🇧🇷 Rio de Janeiro 1,137 1979
14
Cefet/RJ - Centro Federal de Educação Tecnológica Celso Suckow da Fonsecacefet-rj.br

An institution dedicated to providing high-quality education through teaching, research, and extension activities to prepare professionals for social and economic development

Higher Education 🇧🇷 Rio de Janeiro 1,082 n/a
15
Instituto Nacional de Traumatologia e Ortopediainto.saude.gov.br

Specializing in treating complex orthopedic diseases and traumas, the organization excels in surgical procedures and research, with a focus on quality and innovation

Hospitals and Health Care 🇧🇷 Rio de Janeiro 891 1943
16
Farmanguinhos / Fiocruzfar.fiocruz.br

A technical-scientific unit focused on education, research, technological innovation, and drug production, specialized in essential medications, cost reduction, and public health access

Pharmaceutical Manufacturing 🇧🇷 Rio de Janeiro 745 1976

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17
Universidade Severino Sombrauniversidadedevassouras.edu.br

Private university in Vassouras, Rio de Janeiro, offering education, research, and outreach activities with facilities including laboratories, clinics, and a hospital

Higher Education 🇧🇷 Vassouras 725 1969
18
CEPELcepel.br

A research center focused on power generation, transmission, and distribution, with over 35 years of experience in energy research and development

Research Services 🇧🇷 Rio de Janeiro 711 1974
19
Universidade Federal Fluminenseuff.br

A federal university based in Niterói, Brazil, with additional teaching units in various cities in Rio de Janeiro and an extension unit in Pará

Government Relations Services 🇧🇷 Niterói 600 1960
20
Instituto Nacional de Cardiologia (Instituto Nacional de Cardiologia Laranjeiras)inc.saude.gov.br

Specializing in high-complexity treatment for cardiac diseases, the institute stands out for hemodynamic procedures, complex heart surgeries, transplants, and professional training in the healthcare field

Wellness and Fitness Services 🇧🇷 Rio de Janeiro 592 1973
21
FGV Brazilportal.fgv.br

A leading institution focused on promoting social and economic development through research, innovation, and consulting in various fields globally

Higher Education 🇧🇷 Rio de Janeiro 585 1944
22
IMPAimpa.br

A research institution and graduate school linked to the Brazilian Ministries of Science and Education, focused on pure and applied mathematics

Research Services 🇧🇷 Rio de Janeiro 577 1952
23
SENAI CETIQTsenaicetiqt.com

A leading Latin American center providing education, technology, and innovation services for the chemical and textile industries, focusing on real-world solutions Visit the website for more information

Higher Education 🇧🇷 Rio de Janeiro 524 1949
24
Instituto D'Or de Pesquisa e Ensinoidor.org

Nonprofit organization promoting scientific progress in healthcare through education, research, and collaboration with institutions and investigators for innovation

Research Services 🇧🇷 Rio de Janeiro 519 2010
25
CTCEA - Brazilian Organization for Scientific and Technological Development of Airspace Controlctcea.org.br

An institution conducting research and development projects in aerospace control, defense, and environmental preservation, operating under private law in Brazil

Defense and Space Manufacturing 🇧🇷 Rio de Janeiro 514 n/a
26
Instituto Nacional de Tecnologiagov.br

Innovative technology solutions, specialized services in energy, oil/gas, renewable energy, industrial health, defense, green chemistry, and social technologies through 19 laboratories

Research Services 🇧🇷 Rio de Janeiro 499 1921
27
Tecgraf / PUC-Riotecgraf.puc-rio.br

Innovative RD&I institute at PUC-Rio campus, integrating competencies to develop computer systems and solutions in digital tech, data science, and more

Software Development 🇧🇷 Rio de Janeiro 478 1987
28
Empresa de Pesquisa Energéticalinktr.ee

Specializing in energy research, the company provides services for studies to support planning in various sectors such as electricity, oil, gas, coal, and renewable energy

Research Services 🇧🇷 Rio de Janeiro 478 n/a
29
FGV IBREportalibre.fgv.br

Specializing in economic indicators and sector studies, our company provides valuable insights to improve public policies and private actions in Brazil

Think Tanks 🇧🇷 Rio de Janeiro 355 1951
30
Instituto de Pesquisas Jardim Botânico do Rio de Janeirogov.br

Specializes in botanical research and conservation efforts in Brazil, focusing on preserving the country's unique plant species and ecosystems

Research Services 🇧🇷 Rio de Janeiro 342 n/a
31
Universidade Federal do Rio de Janeiroufrj.br

A prestigious and internationally respected university, established in 1920 by the Federal Government, offering a wide range of academic programs

Higher Education 🇧🇷 Rio de Janeiro 307 1920
32
FUNDAÇÃO DE ESTUDOS DO MARfundacaofemar.org.br

A non-profit institution focused on developing and providing specialized services in education, research, technology innovation, and knowledge transmission related to the sea

Education 🇧🇷 Rio de Janeiro 185 1966
33
Agência de Inovação PUC-Rioagi.puc-rio.br

The PUC-Rio Innovation Agency promotes innovation, technology transfer, and strategic use of intellectual property to foster entrepreneurial development

Research Services 🇧🇷 Rio de Janeiro 6 2010

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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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