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CNAE 8640-2/05 · São Gonçalo (RJ)

Diagnostic imaging with ionizing radiation, except tomography in São Gonçalo (RJ)

31 active companies are headquartered in São Gonçalo (RJ) with this CNAE as their main activity. They represent 0.3% of Brazil's active companies with the same main activity.

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

The same activity in Brazil 9,757 · Rio de Janeiro 1,023

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 São Gonçalo (RJ)
31
0.3% of Brazil's
Of every 100 companies in São Gonçalo (RJ)
0.0
do this activity
Among Rio de Janeiro's cities
4th
by companies in this activity

Active companies in São Gonçalo (RJ)

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

List limited to 31 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. São Gonçalo (RJ)0.0
  2. Rio de Janeiro0.0
  3. Brazil0.0

In São Gonçalo (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 44.5% 455
  2. 2 Duque de Caxias 11.4% 117
  3. 3 Niterói 8.9% 91
  4. 4 São Gonçalo 3.0% 31
  5. 5 Campos dos Goytacazes 2.9% 30
  6. 6 Petrópolis 2.2% 23
  7. 7 Nova Iguaçu 2.1% 21
  8. 8 Cabo Frio 2.0% 20
  9. 9 Volta Redonda 1.9% 19
  10. 10 Araruama 1.4% 14
20 more cities
  1. 11 Macaé 14
  2. 12 Barra Mansa 11
  3. 13 Itaperuna 11
  4. 14 São João de Meriti 11
  5. 15 Teresópolis 11
  6. 16 Nova Friburgo 10
  7. 17 Resende 10
  8. 18 Belford Roxo 8
  9. 19 Rio Bonito 8
  10. 20 Saquarema 8
  11. 21 Três Rios 8
  12. 22 Maricá 7
  13. 23 Itaboraí 6
  14. 24 Nilópolis 6
  15. 25 Paraíba do Sul 6
  16. 26 Magé 5
  17. 27 São Pedro da Aldeia 5
  18. 28 Valença 5
  19. 29 Angra dos Reis 4
  20. 30 Barra do Piraí 4

Class 8640-2 in São Gonçalo (RJ)

atividades de serviços de complementação diagnóstica e terapêutica, by subclass
SubclassActive
8640-2/01 Pathological anatomy and cytology laboratories4
8640-2/02 Clinical laboratories27
8640-2/03 Dialysis and nephrology services2
8640-2/04 Computed tomography services6
8640-2/05 Diagnostic imaging with ionizing radiation, except tomography · this one31
8640-2/06 Magnetic resonance imaging services1
8640-2/07 Diagnostic imaging without ionizing radiation, except MRI12
8640-2/08 Diagnostic services by graphic recording - ECG, EEG and similar tests3
8640-2/09 Diagnostic services by optical methods - endoscopy and similar tests2
8640-2/10 Chemotherapy services0
8640-2/11 Radiotherapy services0
8640-2/12 Hemotherapy services1
8640-2/13 Lithotripsy services0
8640-2/14 Human cell and tissue bank services0
8640-2/99 Diagnostic and therapeutic support services not elsewhere classified9

Close to this: 8640-2/04 · Computed tomography services, 6 companies in São Gonçalo (RJ).

What activity 8640-2/05 is

  • Os serviços de radiodiagnóstico, tais como: #- radiologia médica e odontológica #- densitometria óssea #- hemodinâmica #- medicina nuclear #- mamografia #- fluoroscopia
  • As atividades de unidades móveis equipadas apenas de laboratório radiológico, com pessoal especializado, sem fornecimento de consultas médicas

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 8640-2/05 in São Gonçalo (RJ)?

31 active companies have CNAE 8640-2/05 as their main activity in São Gonçalo (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 455, 44.5% 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 São Gonçalo (RJ).