CNAE 4221-9/02 · Rio de Janeiro
Construção de estações e redes de distribuição de energia elétrica in Rio de Janeiro
113 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 4.8% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 2,355
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
- 113
- 4.8% of Brazil's
- Of every 100 companies in Rio de Janeiro
- 0.0
- do this activity
- Among Brazil's federative units
- 9th
- 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 4- COBRA BRASIL SERVICOS, COMUNICACOES E ENERGIA S.A.Rio de Janeiro (RJ)
- COX CONSTRUCAO BRASIL LTDA.Rio de Janeiro (RJ)
- ELECNOR DO BRASIL LTDARio de Janeiro (RJ)
- COMPEL CONSTRUCOES MONTAGENS E PROJETOS ELETRICOS LTDASão Gonçalo (RJ)
- CYMI DO BRASIL - PROJETOS E SERVICOS LTDARio de Janeiro (RJ)
- JVP CONSTRUCOES E EMPREENDIMENTOS LTDASão Gonçalo (RJ)
- XPTT BRASIL CONSTRUCAO DE SISTEMAS DE ENERGIA ELETRICA LTDA.Rio de Janeiro (RJ)
- CONSTRUPERJ CONSTRUTORA LTDANiterói (RJ)
- ETE CONSTRUCOES E MONTAGENS ELETRICAS LTDARio de Janeiro (RJ)
- PRODIEL NOVAMPER ENERGIAS RENOVAVEIS LTDARio de Janeiro (RJ)
- MYRTOS GERACAO DE ENERGIA S.A.Rio de Janeiro (RJ)
- CYMI CONSTRUCOES E PARTICIPACOES S.ARio de Janeiro (RJ)
- SHEMAR LATAM HOLDING LTDARio de Janeiro (RJ)
- ALTIS INFRA SUBTERRANEA LTDARio de Janeiro (RJ)
- TRICON ENGENHARIA LTDACampos dos Goytacazes (RJ)
- GERA SOLAR GD LTDARio de Janeiro (RJ)
- JMR-CON ENGENHARIA E CONSTRUCOES LTDASão Gonçalo (RJ)
- ELECNOR AZULAO SPE LTDA.Rio de Janeiro (RJ)
- CONSORCIO SBEI - MENDES - SERVIXRio de Janeiro (RJ)
- CONSORCIO TEJOFRAN - SEMISANova Iguaçu (RJ)
- COX BRASIL S.ARio de Janeiro (RJ)
- ARC CONSULTORIA EM ELETRICIDADE LTDARio de Janeiro (RJ)
- PROENERGY SERVICES DO BRASIL SERVICOS DE OPERACAO E MANUTENCAO LTDA.Rio de Janeiro (RJ)
- UFV VALENCA RJ GD LTDAValença (RJ)
- ALBERGO DEI PINI EMPREENDIMENTOS LTDA SCP SOLAR 6Rio de Janeiro (RJ)
- ALBERGO DEI PINI EMPREENDIMENTOS LTDA SCPRio de Janeiro (RJ)
- ELECTRA MONTAGENS E CONSTRUCOES LTDAAngra dos Reis (RJ)
- ALBERGO DEI PINI EMPREENDIMENTOS LTDA - SCPRio de Janeiro (RJ)
- COPENG - CONSULTORIA OBRA E PROJETOS DE ENGENHARIA LTDARio de Janeiro (RJ)
- ALBERGO DEI PINI EMPREENDIMENTOS LTDA -SCPRio de Janeiro (RJ)
List limited to 113 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 Janeiro0.0
- Brazil0.0
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 54.0% 61
- 2 Niterói 11.5% 13
- 3 Campos dos Goytacazes 8.0% 9
- 4 São Gonçalo 4.4% 5
- 5 Cabo Frio 1.8% 2
- 6 Duque de Caxias 1.8% 2
- 7 Itaocara 1.8% 2
- 8 Nova Iguaçu 1.8% 2
- 9 Petrópolis 1.8% 2
- 10 São João da Barra 1.8% 2
13 more cities
- 11 Guapimirim 1
- 12 Angra dos Reis 1
- 13 Itaperuna 1
- 14 Macaé 1
- 15 Magé 1
- 16 Maricá 1
- 17 Nilópolis 1
- 18 Nova Friburgo 1
- 19 Porciúncula 1
- 20 Rio Bonito 1
- 21 Santo Antônio de Pádua 1
- 22 Valença 1
- 23 Quissamã 1
Class 4221-9 in Rio de Janeiro
obras para geração e distribuição de energia elétrica e para telecomunicações, by subclass| Subclass | Active |
|---|---|
| 4221-9/01 Construção de barragens e represas para geração de energia elétrica | 5 |
| 4221-9/02 Construção de estações e redes de distribuição de energia elétrica · this one | 113 |
| 4221-9/03 Manutenção de redes de distribuição de energia elétrica | 64 |
| 4221-9/04 Construção de estações e redes de telecomunicações | 87 |
| 4221-9/05 Manutenção de estações e redes de telecomunicações | 110 |
What activity 4221-9/02 is
- A construção de usinas, estações e subestações hidrelétricas, eólicas, nucleares, termoelétricas, etc.
- A construção de redes de transmissão e distribuição de energia elétrica, inclusive o serviço de eletrificação rural
- A construção de redes de eletrificação para ferrovias e metropolitanos
Frequently asked questions
How many companies have main CNAE 4221-9/02 in Rio de Janeiro?
113 active companies have CNAE 4221-9/02 as their main activity in Rio de Janeiro, 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 61, 54.0% 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.