CNAE 8640-2/04 · Rio de Janeiro
Computed tomography services in Rio de Janeiro
591 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 32.8% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 1,802
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
- 591
- 32.8% of Brazil's
- Of every 100 companies in Rio de Janeiro
- 0.0
- do this activity
- Among Brazil's federative units
- 1st
- 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 3 of 10- OFX RADIOLOGIA LTDARio de Janeiro (RJ)
- CENTRO ODONTOLOGICO RADIOLOGIA E IMAGINOLOGIA LTDABom Jesus do Itabapoana (RJ)
- EXAM SERVICOS DE IMAGEM LTDASaquarema (RJ)
- INSIGHT IMAGEM LTDAAngra dos Reis (RJ)
- PHRC RADIOLOGIA MEDICA LTDARio de Janeiro (RJ)
- CPG DIAGNOSTICOS LTDARio de Janeiro (RJ)
- COD X RADIOLOGIA LTDARio de Janeiro (RJ)
- TM RADIOLOGIA E DOCUMENTACAO EM RADIOLOGIA LTDA.Rio de Janeiro (RJ)
- JP RADIOLOGIA LTDASão Gonçalo (RJ)
- SLICE RADIOLOGIC LTDAAngra dos Reis (RJ)
- ANGI SERVICOS MEDICOS LTDARio de Janeiro (RJ)
- ALFA IMAGEM CENTRO DE DIAGNOSTICO LTDACabo Frio (RJ)
- PCMP- SERVICOS MEDICOS LTDARio de Janeiro (RJ)
- ANDRADE E VASCONCELOS DIAGNOSTICO POR IMAGEM LTDARio de Janeiro (RJ)
- SL SERVICOS DE DIAGNOSTICOS DE IMAGENS E SAUDE LTDARio de Janeiro (RJ)
- IMAGEMSSOM DIAGNOSTICO LTDARio de Janeiro (RJ)
- RADIOLOGIA INTERVENCIONISTA ONCOLOGICA E VASCULAR AVANCADA SERVICOS MEDICOS LTDANiterói (RJ)
- AGF SERVICOS DE SAUDE LTDANiterói (RJ)
- TEC RAD SERVICOS RADIOLOGICOS LTDARio de Janeiro (RJ)
- SERVICE RADY LTDARio de Janeiro (RJ)
- SERVICOS DE IMAGINOLOGIA DIAGNOSTICA YN LTDAMagé (RJ)
- WJ DIAGNOSTICO POR IMAGEM LTDARio de Janeiro (RJ)
- ACURACIA DIAGNOSTICO POR IMAGEM LTDARio de Janeiro (RJ)
- RADIONUCLEAR SERVICOS MEDICOS LTDACampos dos Goytacazes (RJ)
- PESTANA SERVICOS MEDICOS LTDARio de Janeiro (RJ)
- JCM DIAGNOSTICOS RADIOLOGICOS LTDARio de Janeiro (RJ)
- MED RAD SERVICOS DE TOMOGRAFIA MAMOGRAFIA E RADIOGRAFIARio de Janeiro (RJ)
- DIAGNOSTICOS VIANA LTDARio de Janeiro (RJ)
- LSRAD SERVICOS MEDICOS S/S LTDANiterói (RJ)
- RM SCAN SERVICOS MEDICOS LTDA - SCP 0001Rio de Janeiro (RJ)
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 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 4.0 times 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 Rio de Janeiro 89.3% 528
- 2 Niterói 2.4% 14
- 3 São Gonçalo 1.0% 6
- 4 Angra dos Reis 0.5% 3
- 5 Nova Iguaçu 0.5% 3
- 6 Volta Redonda 0.5% 3
- 7 Araruama 0.3% 2
- 8 Bom Jesus do Itabapoana 0.3% 2
- 9 Cabo Frio 0.3% 2
- 10 Campos dos Goytacazes 0.3% 2
20 more cities
- 11 Macaé 2
- 12 Nova Friburgo 2
- 13 Petrópolis 2
- 14 Porciúncula 2
- 15 Resende 2
- 16 São João de Meriti 2
- 17 Mesquita 1
- 18 Queimados 1
- 19 Rio das Ostras 1
- 20 Quatis 1
- 21 Areal 1
- 22 Cantagalo 1
- 23 Cordeiro 1
- 24 Itaocara 1
- 25 Itaperuna 1
- 26 Magé 1
- 27 Maricá 1
- 28 São Pedro da Aldeia 1
- 29 Saquarema 1
- 30 Teresópolis 1
Class 8640-2 in Rio de Janeiro
atividades de serviços de complementação diagnóstica e terapêutica, by subclass| Subclass | Active |
|---|---|
| 8640-2/01 Pathological anatomy and cytology laboratories | 129 |
| 8640-2/02 Clinical laboratories | 1,189 |
| 8640-2/03 Dialysis and nephrology services | 104 |
| 8640-2/04 Computed tomography services · this one | 591 |
| 8640-2/05 Diagnostic imaging with ionizing radiation, except tomography | 1,023 |
| 8640-2/06 Magnetic resonance imaging services | 56 |
| 8640-2/07 Diagnostic imaging without ionizing radiation, except MRI | 447 |
| 8640-2/08 Diagnostic services by graphic recording - ECG, EEG and similar tests | 132 |
| 8640-2/09 Diagnostic services by optical methods - endoscopy and similar tests | 97 |
| 8640-2/10 Chemotherapy services | 32 |
| 8640-2/11 Radiotherapy services | 40 |
| 8640-2/12 Hemotherapy services | 22 |
| 8640-2/13 Lithotripsy services | 0 |
| 8640-2/14 Human cell and tissue bank services | 2 |
| 8640-2/99 Diagnostic and therapeutic support services not elsewhere classified | 394 |
Close to this: 8640-2/05 · Diagnostic imaging with ionizing radiation, except tomography, 1,023 companies in Rio de Janeiro.
What activity 8640-2/04 is
- Os serviços que realizam exames de tomografia
Frequently asked questions
How many companies have main CNAE 8640-2/04 in Rio de Janeiro?
591 active companies have CNAE 8640-2/04 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 528, 89.3% 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.