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The 27 largest Government Administration companies in Rio de Janeiro

Tamtam tracks 27 Government Administration companies headquartered in Rio de Janeiro. This list ranks all of them by number of employees on LinkedIn, led by Prefeitura do Rio de Janeiro, IBGE and Governo do Estado do Rio de Janeiro. Their median headcount is 800. Half of them were founded in 1966 or later.

🇧🇷 Rio de Janeiro27 companiesUpdated Oct 10, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Prefeitura do Rio de Janeiroprefeitura.rio

A company that specializes in showcasing the beauty and wonder of a particular city, focusing on its unique attractions and charm

Government Administration 🇧🇷 Rio de Janeiro 16,793 1565
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
Governo do Estado do Rio de Janeirorj.gov.br

Government entity in Rio de Janeiro focusing on dialogue, work, and simplicity Committed to transparency and serving over 16 million citizens

Government Administration 🇧🇷 Rio de Janeiro 5,860 n/a
4
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
5
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
6
Defensoria Pública do Estado do Rio de Janeiro - DPGEdefensoria.rj.def.br

A public institution providing free legal assistance and guidance to financially disadvantaged citizens, defending human rights and promoting justice for vulnerable groups

Government Administration 🇧🇷 Rio de Janeiro 3,689 1954
7
Centro de Referência da Assistência Social - CRAS

Government administration providing social assistance services in Rio De Janeiro, Brazil

Government Administration 🇧🇷 Rio de Janeiro 3,152 n/a
8
DECEA - Departamento de Controle do Espaço Aéreodecea.gov.br

An organization managing activities related to air traffic control, search and rescue, and aeronautical telecommunications, covering a vast airspace area

Government Administration 🇧🇷 Rio de Janeiro 1,730 1941
9
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
10
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
11
CVMwww.gov.br

Registers, regulates, supervises, and inspects capital market activities and participants. Investigates, judges, and punishes irregularities in its regulated scope.

Government Administration 🇧🇷 Rio de Janeiro 1,062 1976
12
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
13
INPI Brasil - Instituto Nacional da Propriedade Industrialgov.br

Established in 1970, the organization stimulates innovation and competitiveness in Brazil by providing efficient protection of intellectual property rights, including trademarks, patents, and designs

Government Administration 🇧🇷 Rio de Janeiro 818 n/a
14
Agência Nacional de Saúde Suplementar - ANSgov.br

Regulating agency overseeing health insurance sector in Brazil, ensuring transparency, ethics, knowledge, innovation, sustainability, and social commitment in healthcare regulation

Government Administration 🇧🇷 Rio de Janeiro 800 n/a
15
Secretaria de Estado de Fazenda do RJfazenda.rj.gov.br

The organization assists the state governor in financial, accounting, and tax policies, managing public resources transparently and providing timely information for fiscal control

Government Administration 🇧🇷 Rio de Janeiro 649 1892
16
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
17
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
18
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
19
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
20
PRODERJrj.gov.br

Government agency managing Information and Communication Technology for the state of Rio de Janeiro, providing guidance for IT policy in the public administration sector

Government Administration 🇧🇷 Rio de Janeiro 408 1968
21
Secretaria de Estado de Cultura e Economia Criativa do Rio de Janeirocultura.rj.gov.br

The organization's mission is to develop and implement public policies aimed at preserving cultural heritage, stimulating artistic production, and ensuring access to cultural assets

Government Administration 🇧🇷 Rio de Janeiro 323 n/a
22
Secretaria de Estado da Casa Civil do Rio de Janeirorj.gov.br

The State Secretariat of Civil House supports government duties related to planning, coordination, and administration, including interactions with society and political entities

Government Administration 🇧🇷 Rio de Janeiro 319 n/a
23
Fundação Biblioteca Nacionalbn.gov.br

Specializing in preserving and storing Brazil's bibliographic heritage through digital archiving and management of the National Library's collection

Government Administration 🇧🇷 Rio de Janeiro 222 n/a
24
CREMERJportal.cremerj.org.br

This organization in Rio de Janeiro ensures ethical and moral practices in the medical profession, issuing licenses, regulating, and overseeing professional conduct

Government Administration 🇧🇷 Rio de Janeiro 178 1957
25
Secretaria de Estado de Infraestrutura e Obras Públicasrj.gov.br

The organization supports municipalities through training and technical support in housing and regional development, aiming to strengthen local teams and integrate government services

Government Administration 🇧🇷 Rio de Janeiro 163 n/a
26
Prefeitura Municipal do Rio Janeiro

Government administration based in Rio De Janeiro, Brazil, overseeing public services and programs for the city's residents

Government Administration 🇧🇷 Rio de Janeiro 161 n/a
27
AGENERSAgov.br

Regulating agency overseeing public services in energy and sanitation in Rio de Janeiro, monitoring concessions and permissions, controlling gas and water distribution companies

Government Administration 🇧🇷 Rio de Janeiro 147 n/a

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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 10, 2026.

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The same list elsewhere in Brazil