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CNAE 8630-5/04 · Rio de Janeiro

Atividade odontológica in Rio de Janeiro

8,250 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 6.4% of Brazil's active companies with the same main activity.

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

The same activity in Brazil 128,128

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
8,250
6.4% of Brazil's
Of every 100 companies in Rio de Janeiro
0.4
do this activity
Among Brazil's federative units
4th
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

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 much the activity weighs

of every 100 active companies, how many do this activity

  1. Rio de Janeiro0.4
  2. Brazil0.5

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. 1 Rio de Janeiro 49.1% 4,050
  2. 2 Niterói 6.7% 550
  3. 3 Nova Iguaçu 4.4% 363
  4. 4 Duque de Caxias 3.7% 307
  5. 5 São Gonçalo 3.0% 247
  6. 6 Campos dos Goytacazes 2.8% 233
  7. 7 Volta Redonda 2.2% 180
  8. 8 Cabo Frio 1.9% 158
  9. 9 Petrópolis 1.7% 142
  10. 10 Macaé 1.7% 141
20 more cities
  1. 11 Nova Friburgo 105
  2. 12 Teresópolis 102
  3. 13 São João de Meriti 101
  4. 14 Angra dos Reis 93
  5. 15 Maricá 90
  6. 16 Rio das Ostras 89
  7. 17 Resende 87
  8. 18 Nilópolis 72
  9. 19 Itaboraí 67
  10. 20 Magé 64
  11. 21 Belford Roxo 63
  12. 22 Barra Mansa 56
  13. 23 Araruama 52
  14. 24 Itaperuna 51
  15. 25 Saquarema 45
  16. 26 Itaguaí 42
  17. 27 Três Rios 42
  18. 28 Barra do Piraí 40
  19. 29 Valença 40
  20. 30 Queimados 38

Class 8630-5 in Rio de Janeiro

atividades de atenção ambulatorial executadas por médicos e odontólogos, by subclass

Close to this: 3250-7/06 · Serviços de prótese dentária, 428 companies in Rio de Janeiro.

What activity 8630-5/04 is

  • As atividades de consultas e tratamento odontológico, de qualquer tipo, prestadas a pacientes em clínicas e consultórios odontológicos, em hospitais, em clínicas de empresas, bem como, no domicílio do paciente
  • As atividades de unidades móveis terrestres equipadas de consultório odontológico
  • As atividades de unidades móveis fluviais equipadas de consultório odontológico

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 8630-5/04 in Rio de Janeiro?

8,250 active companies have CNAE 8630-5/04 as their main activity in Rio de Janeiro, according to the Receita Federal's October 2026 publication. That is 0.4 of every 100 companies there, against 0.5 in Brazil.

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

Rio de Janeiro, with 4,050, 49.1% 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.