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CNAE 4321-5/00 · Ouro Preto do Oeste (RO)

Instalação e manutenção elétrica in Ouro Preto do Oeste (RO)

57 active companies are headquartered in Ouro Preto do Oeste (RO) with this CNAE as their main activity. They represent less than 0.1% of Brazil's active companies with the same main activity.

Source: Receita Federal, CNPJ Open Data · October 2026 publication

The same activity in Brazil 328,370 · Rondônia 2,388

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 Ouro Preto do Oeste (RO)
57
less than 0.1% of Brazil's
Of every 100 companies in Ouro Preto do Oeste (RO)
1.5
do this activity
Among Rondônia's cities
9th
by companies in this activity

Active companies in Ouro Preto do Oeste (RO)

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 2

List limited to 57 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 much the activity weighs

of every 100 active companies, how many do this activity

  1. Ouro Preto do Oeste (RO)1.5
  2. Rondônia1.5
  3. Brazil1.2

In Ouro Preto do Oeste (RO), the activity weighs 1.2 times what it does in Brazil.

Rondônia's cities with the most companies in this activity

active companies and each city's share of the state

  1. 1 Porto Velho 32.8% 783
  2. 2 Ji-Paraná 12.1% 288
  3. 3 Vilhena 8.8% 209
  4. 4 Cacoal 7.7% 184
  5. 5 Ariquemes 7.4% 177
  6. 6 Rolim de Moura 4.8% 115
  7. 7 Jaru 2.8% 67
  8. 8 Pimenta Bueno 2.6% 63
  9. 9 Ouro Preto do Oeste 2.4% 57
  10. 10 Buritis 1.7% 40
20 more cities
  1. 11 Guajará-Mirim 36
  2. 12 São Miguel do Guaporé 29
  3. 13 Espigão D'Oeste 27
  4. 14 Alta Floresta D'Oeste 26
  5. 15 Colorado do Oeste 24
  6. 16 Cerejeiras 24
  7. 17 Machadinho D'Oeste 24
  8. 18 São Francisco do Guaporé 23
  9. 19 Nova Brasilândia D'Oeste 22
  10. 20 Candeias do Jamari 21
  11. 21 Presidente Médici 18
  12. 22 Alto Paraíso 12
  13. 23 Urupá 10
  14. 24 Cujubim 9
  15. 25 Mirante da Serra 9
  16. 26 Chupinguaia 8
  17. 27 Nova Mamoré 8
  18. 28 Monte Negro 7
  19. 29 Seringueiras 7
  20. 30 Vale do Anari 6

Class 4321-5 in Ouro Preto do Oeste (RO)

instalações elétricas, by subclass

Close to this: 8020-0/01 · Atividades de monitoramento de sistemas de segurança eletrônico, 3 companies in Ouro Preto do Oeste (RO).

What activity 4321-5/00 is

  • A instalação, alteração, manutenção e reparo em todos os tipos de construções de: #- sistemas de eletricidade (cabos de qualquer tensão, fiação, materiais elétricos, etc.) #- cabos para instalações telefônicas e de comunicações #- cabos para redes de informática e televisão a cabo, inclusive por fibra óptica #- antenas coletivas e parabólicas #- pára-raios #- sistemas de iluminação #- sistemas de alarme contra incêndio #- sistemas de alarme contra roubo #- sistemas de controle eletrônico e automação predial
  • A instalação de equipamentos elétricos para aquecimento

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4321-5/00 in Ouro Preto do Oeste (RO)?

57 active companies have CNAE 4321-5/00 as their main activity in Ouro Preto do Oeste (RO), according to the Receita Federal's October 2026 publication. That is 1.5 of every 100 companies there, against 1.2 in Brazil.

Which of Rondônia's cities has the most companies in this activity?

Porto Velho, with 783, 32.8% 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 Ouro Preto do Oeste (RO).

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