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CNAE 4120-4/00 · Rio das Ostras (RJ)

Construção de edifícios in Rio das Ostras (RJ)

155 active companies are headquartered in Rio das Ostras (RJ) 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 176,003 · Rio de Janeiro 10,098

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 das Ostras (RJ)
155
less than 0.1% of Brazil's
Of every 100 companies in Rio das Ostras (RJ)
0.7
do this activity
Among Rio de Janeiro's cities
12th
by companies in this activity

Active companies in Rio das Ostras (RJ)

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 6

List limited to 155 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. Rio das Ostras (RJ)0.7
  2. Rio de Janeiro0.5
  3. Brazil0.7

In Rio das Ostras (RJ), the activity weighs 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. 1 Rio de Janeiro 43.5% 4,395
  2. 2 Niterói 6.6% 664
  3. 3 Campos dos Goytacazes 4.0% 406
  4. 4 São Gonçalo 4.0% 406
  5. 5 Duque de Caxias 3.2% 322
  6. 6 Nova Iguaçu 2.7% 270
  7. 7 Volta Redonda 2.2% 223
  8. 8 Petrópolis 2.2% 220
  9. 9 Cabo Frio 2.1% 216
  10. 10 Maricá 1.8% 182
20 more cities
  1. 11 Macaé 179
  2. 12 Rio das Ostras 155
  3. 13 Araruama 127
  4. 14 Itaboraí 115
  5. 15 Teresópolis 109
  6. 16 Nova Friburgo 105
  7. 17 Angra dos Reis 104
  8. 18 Saquarema 98
  9. 19 Itaperuna 95
  10. 20 Magé 95
  11. 21 Barra Mansa 91
  12. 22 Belford Roxo 84
  13. 23 Resende 83
  14. 24 Três Rios 70
  15. 25 Casimiro de Abreu 69
  16. 26 São Pedro da Aldeia 69
  17. 27 Nilópolis 64
  18. 28 São João de Meriti 61
  19. 29 Itaguaí 58
  20. 30 Barra do Piraí 48

Class 4120-4 in Rio das Ostras (RJ)

construção de edifícios, by subclass

Close to this: 4321-5/00 · Instalação e manutenção elétrica, 307 companies in Rio das Ostras (RJ).

What activity 4120-4/00 is

  • A construção de edifícios residenciais de qualquer tipo: #- casas e residências unifamiliares #- edifícios residenciais multifamiliares, incluindo edifícios de grande altura (arranha-céus)
  • A construção de edifícios comerciais de qualquer tipo: #- consultórios e clínicas médicas #- escolas #- escritórios comerciais #- hospitais #- hotéis, motéis e outros tipos de alojamento #- lojas, galerias e centros comerciais #- restaurantes e outros estabelecimentos similares #- shopping centers
  • A construção de edifícios destinados a outros usos específicos: #- armazéns e depósitos #- edifícios garagem, inclusive garagens subterrâneas #- edifícios para uso agropecuário #- estações para trens e metropolitanos #- estádios esportivos e quadras cobertas #- igrejas e outras construções para fins religiosos (templos) #- instalações para embarque e desembarque de passageiros (em aeroportos, rodoviárias, portos, etc.) #- penitenciárias e presídios #- postos de combustível

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4120-4/00 in Rio das Ostras (RJ)?

155 active companies have CNAE 4120-4/00 as their main activity in Rio das Ostras (RJ), according to the Receita Federal's October 2026 publication. That is 0.7 of every 100 companies there, against 0.7 in Brazil.

Which of Rio de Janeiro's cities has the most companies in this activity?

Rio de Janeiro, with 4,395, 43.5% 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 das Ostras (RJ).

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