CNAE 4212-0/00 · Rio de Janeiro (RJ)
Construção de obras de arte especiais in Rio de Janeiro (RJ)
43 active companies are headquartered in Rio de Janeiro (RJ) with this CNAE as their main activity. They represent 4.3% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 1,006 · Rio de Janeiro 59
What this list shows
We count each active company once, by its head office in the city 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 (RJ)
- 43
- 4.3% of Brazil's
- Of every 100 companies in Rio de Janeiro (RJ)
- 0.0
- do this activity
- Among Rio de Janeiro's cities
- 1st
- by companies in this activity
Active companies in Rio de Janeiro (RJ)
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 2- SP SISTEMAS DE PROTENSAO LTDA.Rio de Janeiro (RJ)
- SOCIEDADE IPIRANGA DE ENGENHARIA E COMERCIO S ARio de Janeiro (RJ)
- GEZHOUBA GROUP INTERNATIONAL ENGINEERING BRAZIL LTDA.Rio de Janeiro (RJ)
- FAULHABER ENGENHARIA LIMITADARio de Janeiro (RJ)
- SENIC SERVICOS DE ENGENHARIA INDUSTRIA E COMERCIO LTDARio de Janeiro (RJ)
- CONSTRUTORA DUARTE ISIDORO LTDARio de Janeiro (RJ)
- RETECH SERVICOS ESPECIAIS DE ENGENHARIA LTDARio de Janeiro (RJ)
- IO CAPITAL LTDARio de Janeiro (RJ)
- SOMARTE NEW CO. LTDARio de Janeiro (RJ)
- JULCA SERVICOS LTDARio de Janeiro (RJ)
- RN PROJETOS E GERENCIAMENTO DE OBRAS LTDARio de Janeiro (RJ)
- HME CONSTRUCOES E CONSULTORIA LTDARio de Janeiro (RJ)
- ASS CONSTRUCAO DE OBRAS DE ARTE ESPECIAIS LTDARio de Janeiro (RJ)
- STUDIO CENO LTDARio de Janeiro (RJ)
- TRINDADE PROJETOS E SOLUCOES LTDARio de Janeiro (RJ)
- BLESSED PINTURAS E INSTALACOES LTDARio de Janeiro (RJ)
- CH ENGENHARIA ECONSULTORIA LTDARio de Janeiro (RJ)
- FLORZINHA ALIMENTOS E SERVICOS LTDARio de Janeiro (RJ)
- ENGEROD ENGENHARIA E CONSULTORIA LTDARio de Janeiro (RJ)
- PROCEC ENGENHARIA S.A. - SCP 2Rio de Janeiro (RJ)
- FC TAVARES CONSTRUCAO DE OBRAS DE ARTE, ALVENARIA, URBANIZACAO E SERVICOS DE ENGENHARIA LTDARio de Janeiro (RJ)
- ISM CONSULTORIA E SERVICOS LTDARio de Janeiro (RJ)
- ROGY CONSTRUCAO LTDARio de Janeiro (RJ)
- CONSORCIO FAULHABER-ECCON-BARRARio de Janeiro (RJ)
- CONSORCIO PONTE DA REDINHARio de Janeiro (RJ)
- ADDING EVENTOS CENOGRAFIA OBRAS E ESTRUTURAS LTDARio de Janeiro (RJ)
- CONSORCIO SAUDE GAMBOARio de Janeiro (RJ)
- CONSORCIO CHEMTECH-KROMAV-EXACTUM IIRio de Janeiro (RJ)
- CONSORCIO CONSTRUTOR RIO BARRA CCRBRio de Janeiro (RJ)
- CONSORCIO PORTO RIORio de Janeiro (RJ)
List limited to 43 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 Janeiro (RJ)0.0
- Rio de Janeiro0.0
- Brazil0.0
In Rio de Janeiro (RJ), the activity weighs 1.1 times what it does 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 72.9% 43
- 2 Angra dos Reis 6.8% 4
- 3 Araruama 5.1% 3
- 4 Niterói 3.4% 2
- 5 Barra do Piraí 1.7% 1
- 6 Campos dos Goytacazes 1.7% 1
- 7 Duque de Caxias 1.7% 1
- 8 Itaboraí 1.7% 1
- 9 Miracema 1.7% 1
- 10 Resende 1.7% 1
1 more cities
- 11 Volta Redonda 1
Class 4212-0 in Rio de Janeiro (RJ)
construção de obras de arte especiais, by subclassClose to this: 7112-0/00 · Serviços de engenharia, 7,230 companies in Rio de Janeiro (RJ).
What activity 4212-0/00 is
- A construção e recuperação de pontes, viadutos, elevados, passarelas, etc.
- A construção de túneis (urbanos, em rodovias, ferrovias, metropolitanos)
Frequently asked questions
How many companies have main CNAE 4212-0/00 in Rio de Janeiro (RJ)?
43 active companies have CNAE 4212-0/00 as their main activity in Rio de Janeiro (RJ), according to the Receita Federal's October 2026 publication. That is 0.0 of every 100 companies there, against 0.0 in Brazil.
Which of Rio de Janeiro's cities has the most companies in this activity?
Rio de Janeiro, with 43, 72.9% of the state's companies in this activity.
Why can this total differ from the companies operating in the city?
This scope counts active companies by their head office and registered main activity. A company may operate in the city 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 (RJ).