CNAE 3321-0/00 · Rio de Janeiro
Instalação de máquinas e equipamentos industriais in Rio de Janeiro
2,890 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 5.3% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 54,145
What this list shows
We count each active company once, by its head office in this state and this CNAE as its main activity. Branches and secondary activities are excluded from this scope. The total describes the registry, not market revenue or company quality.
- Companies in Rio de Janeiro
- 2,890
- 5.3% of Brazil's
- Of every 100 companies in Rio de Janeiro
- 0.1
- do this activity
- Among Brazil's federative units
- 6th
- by companies in this activity
Active companies in Rio de Janeiro
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 10- SANTOS & LEMGRUBER SERVICOS DE TECNOLOGIA LTDARio de Janeiro (RJ)
- SPECTRA COMERCIO DE INSTRUMENTOS ANALITICOS LTDARio de Janeiro (RJ)
- METALFORT MANUTENCAO COMERCIO E SERVICOS LTDARio de Janeiro (RJ)
- PRECISION SERVICE - SERVICOS DE MANUTENCAO E INSTALACAO DE POSTOS DE ABASTECIMENTO DE COMBUSTIVEL LTDARio de Janeiro (RJ)
- OSC MARITIMO S/ARio de Janeiro (RJ)
- LONJAS TECNOLOGIA, ENERGIA E MEIO AMBIENTE LTDA.Rio de Janeiro (RJ)
- EDCONTROL SERVICOS DE PETROLEO E MANUTENCAO DE EQUIPAMENTOS LTDA.Macaé (RJ)
- HICO COMERCIO E SERVICOS LTDACasimiro de Abreu (RJ)
- AMPLAS ATIVIDADES E REPAROS LTDAItaguaí (RJ)
- NIDAI - SERVICOS TECNICOS LTDARio de Janeiro (RJ)
- BIOREN TECNOLOGIA S.A.Rio de Janeiro (RJ)
- ECOMATIZE SOLUCOES EM TECNOLOGIA LTDARio de Janeiro (RJ)
- WEST TECH INSPECOES LTDARio de Janeiro (RJ)
- L D PRESTADOR DE SERVICOS LTDARio de Janeiro (RJ)
- TECNOSEA SERVICOS, PRODUTOS & OPERACOES OFFSHORE LTDACampos dos Goytacazes (RJ)
- EFICAZ INDUSTRIAL E MANUTENCAO LTDARio de Janeiro (RJ)
- METODO SERVICOS DE INSTALACAO E MANUTENCAO LTDARio de Janeiro (RJ)
- ALPHA MONTAGENS E INSTALACOES LTDARio de Janeiro (RJ)
- Y C S COMERCIO, REPAROS E INSTALACAO DE PRODUTOS NAUTICOS LTDARio de Janeiro (RJ)
- BRAGA ELETRONIC INDUSTRIA E COMERCIO LTDARio de Janeiro (RJ)
- T.D. WILLIAMSON DO BRASIL LTDARio de Janeiro (RJ)
- FLUX COMPARTILHADA 02/22 - SPE LTDARio de Janeiro (RJ)
- G.M. SOLUCOES EM MANUTENCAO LTDAMacaé (RJ)
- ARGI TELECOMUNICACOES LTDARio de Janeiro (RJ)
- ENGEART CONSTRUCOES E SERVICOS LTDA.Rio de Janeiro (RJ)
- TRANSELETRON SERVICOS E COMERCIO LTDACampos dos Goytacazes (RJ)
- TOTAL CONSULTORIA , MANUTENCAO E MONTAGENS INDUSTRIAIS LTDARio de Janeiro (RJ)
- NEWSTEC - SERVICO TECNICO EM MONTAGEM, MANUTENCAO DE CALDEIRAS E CONSTRUCOES LTDAAreal (RJ)
- TAYGA HEATING SOLUTIONS LTDARio de Janeiro (RJ)
- TOTAL DYNAMICS SUPPLY SYSTEMS LTDARio de Janeiro (RJ)
List limited to 300 companies, 30 per page. Looking for a specific company? Search by name or CNPJ.
How to assess a company's data
When you open a company's record, use these guides to check the data and understand what each field can establish.
- How to look up a CNPJ
Check identifiers, dates and registry fields against official sources.
- What an active CNPJ means
Active status does not show that a company is debt-free, licensed or able to operate.
- How to read partner and administrator records
Understand QSA roles and the limits on ownership and representation information.
How much the activity weighs
of every 100 active companies, how many do this activity
- Rio de Janeiro0.1
- Brazil0.2
In Rio de Janeiro, the activity weighs less than in Brazil.
Rio de Janeiro's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Rio de Janeiro 42.2% 1,220
- 2 Duque de Caxias 7.0% 203
- 3 São Gonçalo 4.6% 134
- 4 Nova Iguaçu 3.9% 113
- 5 Macaé 2.8% 82
- 6 Niterói 2.7% 78
- 7 Belford Roxo 2.7% 77
- 8 Campos dos Goytacazes 2.5% 72
- 9 Volta Redonda 2.4% 69
- 10 São João de Meriti 2.4% 68
20 more cities
- 11 Petrópolis 59
- 12 Rio das Ostras 50
- 13 Barra Mansa 48
- 14 Valença 44
- 15 Cabo Frio 34
- 16 Maricá 33
- 17 Três Rios 31
- 18 Mesquita 30
- 19 Itaguaí 29
- 20 Resende 28
- 21 Magé 27
- 22 Itaboraí 26
- 23 Teresópolis 24
- 24 Nilópolis 21
- 25 Itaperuna 18
- 26 Queimados 17
- 27 Nova Friburgo 17
- 28 Guapimirim 16
- 29 Japeri 16
- 30 Angra dos Reis 15
What activity 3321-0/00 is
- A instalação de aparelhos e instrumentos de medida, teste e controle e de equipamentos para controle de processos industriais
- A instalação de equipamentos e instrumentos ópticos
- A instalação de aparelhos e equipamentos de irradiação, eletromédicos e eletroterapêuticos
Frequently asked questions
How many companies have main CNAE 3321-0/00 in Rio de Janeiro?
2,890 active companies have CNAE 3321-0/00 as their main activity in Rio de Janeiro, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.2 in Brazil.
Which of Rio de Janeiro's cities has the most companies in this activity?
Rio de Janeiro, with 1,220, 42.2% of the state's companies in this activity.
Why can this total differ from the companies operating in this state?
This scope counts active companies by their head office and registered main activity. A company may operate in this state through a branch or carry out the activity as a secondary activity and be excluded from the count. The registered address and CNAE do not establish every operating location or service.
Does active status mean a company is qualified for a contract?
No. Active status describes the Receita Federal registration. It does not establish tax compliance, creditworthiness, licences, ability to fulfil a contract or quality. Check the relevant official documents and the contract's requirements.
How we count
Active companies with this as their main activity, counted by head office in Rio de Janeiro.