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45 leading public sector organisations in Rio de Janeiro

Tamtam tracks 45 public sector organisations headquartered in Rio de Janeiro. This list ranks all of them by number of employees on LinkedIn, led by Petrobras, IBGE and Eletrobras. Their median headcount is 1,429. Half of them were founded in 1975 or later.

🇧🇷 Rio de Janeiro45 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Petrobraspetrobras.com.br

The company aims to provide ethical, safe, and competitive energy solutions while focusing on sustainability, environmental responsibility, and employee well-being

Oil and Gas 🇧🇷 Rio de Janeiro 56,267 n/a
2
IBGEibge.gov.br

The organization is responsible for collecting and disseminating statistical, geographic, environmental information in Brazil, including conducting a national census every ten years

Government Administration 🇧🇷 Rio de Janeiro 13,138 1936
3
Eletrobraseletrobras.com

Generation, transmission, commercialization, and energy efficiency programs; electric sector leader in Latin America, clean and renewable energy matrix.

Oil and Gas 🇧🇷 Rio de Janeiro 13,000 1962
4
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
5
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
6
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
7
Transpetro - Petrobras Transporte S. A.transpetro.com.br

Provider of logistics solutions for the oil and gas industry, operating terminals, pipelines, ships, and storage facilities for oil, derivatives, and biofuels

Transportation, Logistics, Supply Chain and Storage 🇧🇷 Rio de Janeiro 5,169 1998
8
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
9
RioSaúderiosaude.prefeitura.rio

Public health organization in Rio de Janeiro dedicated to serving the local population with medical care and health services 🏥👩🏽⚕️🩺

Government Administration 🇧🇷 Rio de Janeiro 4,345 2013
10
FAETECfaetec.rj.gov.br

This organization implements policies for free technical and vocational education in Rio de Janeiro, serving 50,000 students annually across various educational levels

Education Administration Programs 🇧🇷 Rio de Janeiro 4,326 1997
11
Ministério Público do Estado do Rio de Janeiro (MPRJ)mprj.mp.br

The organization is an autonomous and independent institution dedicated to defending the legal order, democratic system, and social interests

Government Administration 🇧🇷 Rio de Janeiro 3,716 1988
12
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
13
CEDAE - Companhia Estadual de Águas e Esgotoscedae.com.br

A water and sewage company in Rio de Janeiro that operates water supply, sewage collection, treatment, and distribution for over nine million people

Utilities 🇧🇷 Rio de Janeiro 3,011 1975
14
BNDESbndes.gov.br

A federal public entity providing long-term financing to projects supporting Brazilian development, including infrastructure, industry, agriculture, and social investments in education and health

Banking 🇧🇷 Rio de Janeiro 2,963 n/a
15
Corpo de Bombeiros Militar do Estado do Rio de Janeiro - CBMERJcbmerj.rj.gov.br

The organization is a military force in Rio de Janeiro tasked with civil defense, firefighting, search and rescue, and public assistance

Armed Forces 🇧🇷 Rio de Janeiro 2,691 1856
16
Companhia Municipal de Limpeza Urbana - COMLURBrio.rj.gov.br

The organization is a major public cleaning entity in Latin America, focusing on urban cleaning services in Rio de Janeiro

Utilities 🇧🇷 Rio de Janeiro 2,595 1975
17
CREASgov.br

A public social assistance unit that provides support to individuals experiencing rights violations or violence situations

Individual and Family Services 🇧🇷 Rio de Janeiro 2,350 n/a
18
Eletronucleareletronuclear.gov.br

produces electricity from nuclear sources, operating Angra 1 and Angra 2 plants, supplying significant power to Rio de Janeiro with a focus on safety and environmental monitoring.

Nuclear Electric Power Generation 🇧🇷 Rio de Janeiro 2,020 n/a
19
Colégio Pedro IIcp2.g12.br

Established in 1837, offers public education from preschool to high school levels and post-graduate courses With multiple campuses in different areas

Primary and Secondary Education 🇧🇷 Rio de Janeiro 1,953 1837
20
Alerj - Assembleia Legislativa do Rio de Janeiroalerj.rj.gov.br

The company is an essential and popular legislative power, consisting of 70 Deputies representing various regions and classes, creating laws and promoting transparency

Government Administration 🇧🇷 Rio de Janeiro 1,689 1975
21
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
22
Federal University of the State of Rio de Janeirounirio.br

A public university located in Rio de Janeiro with over 30 years of experience in providing higher education

Higher Education 🇧🇷 Rio de Janeiro 1,498 n/a
23
Casa da Moeda do Brasil - CMBcasadamoeda.gov.br

A leading industrial complex specializing in producing secure graphic and metal products for various industries, including currency, identification documents, and tobacco control solutions

Government Administration 🇧🇷 Rio de Janeiro 1,429 1694
24
CEDERJ - Cecierjcederj.edu.br

Provider of free and high-quality higher education through distance learning, as well as scientific dissemination and teacher training initiatives in Rio de Janeiro

Higher Education 🇧🇷 Rio de Janeiro 1,371 2000
25
INEA - Instituto Estadual do Ambienteinea.rj.gov.br

An environmental institute in Rio de Janeiro, focusing on protecting, conserving, and restoring the environment to promote sustainable development and become a national reference

Environmental Services 🇧🇷 Rio de Janeiro 1,344 2009
26
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
27
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
28
Polícia Militar do Estado do Rio de Janeirosepm.rj.gov.br

Law enforcement agency in Rio de Janeiro, responsible for maintaining public order, preventing crime, and ensuring the safety of the community

Utilities 🇧🇷 Rio de Janeiro 1,295 1809
29
State Grid Brazil Holding S.A.stategrid.com.br

A subsidiary of a Chinese state-owned company, operating and maintaining seven energy transmission concessions in Brazil since 2010

Utilities 🇧🇷 Rio de Janeiro 1,181 2010
30
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
31
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
32
Finepfinep.gov.br

A federal public organization connected to the MCTI focused on innovation and research, highlighted on LinkedIn as its official page

Government Administration 🇧🇷 Rio de Janeiro 944 1967
33
INBinb.gov.br

The business operates in the nuclear fuel supply chain, including mining, processing, enrichment, and fuel fabrication for Brazilian nuclear power plants

Nuclear Electric Power Generation 🇧🇷 Rio de Janeiro 930 1988
34
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
35
Hospital Municipal Souza Aguiarfacebook.com

Medical practice located in Rio De Janeiro, Brazil, offering services at Hospital Municipal Souza Aguiar in the field of healthcare

Medical Practices 🇧🇷 Rio de Janeiro 834 n/a
36
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
37
EMGEPRON - Empresa Gerencial de Projetos Navaismarinha.mil.br

State-owned organization managing projects, collaborating on naval asset procurement and maintenance, and promoting Brazilian Industrial Defence Base within Navy

Armed Forces 🇧🇷 Rio de Janeiro 718 1982
38
Hospital Municipal Ronaldo Gazolla

This medical center is a key part of the city's healthcare system, with a large outpatient clinic, numerous specialties, and a vast number of hospital beds

Hospitals and Health Care 🇧🇷 Rio de Janeiro 706 2008
39
IplanRioiplan.rio

Specializing in managing information technology and communication resources for the city of Rio de Janeiro, providing services and solutions for public entities and improving citizen interaction

Government Administration 🇧🇷 Rio de Janeiro 598 n/a
40
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
41
SUSEP - Superintendência de Seguros Privadosgov.br

Regulating authority overseeing the insurance market, ensuring its importance in people's lives and economic development Informational role on LinkedIn

Government Administration 🇧🇷 Rio de Janeiro 587 1966
42
Tribunal de Contas do Estado do Rio de Janeirotcerj.tc.br

Superior audit office in Rio de Janeiro State ensuring proper use of public funds for society's benefit

Government Administration 🇧🇷 Rio de Janeiro 586 1892
43
Hospital Naval Marcílio Dias

Medical practice located in Rio De Janeiro, Brazil, providing services at Hospital Naval Marcílio Dias on R CÉSAR ZAMA 185

Medical Practices 🇧🇷 Rio de Janeiro 582 n/a
44
HEMORIOhemorio.rj.gov.br

A blood center in Rio de Janeiro supplying blood and its products to around 180 healthcare facilities

Hospitals and Health Care 🇧🇷 Rio de Janeiro 579 1944
45
FAPERJfaperj.br

FAPERJ is a funding agency in Rio de Janeiro that supports scientific and technological activities through grants to researchers and institutions

Government Administration 🇧🇷 Rio de Janeiro 553 1980

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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 Oct 24, 2026.

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