CNAE 8640-2/07 · Rio de Janeiro
Diagnostic imaging without ionizing radiation, except MRI in Rio de Janeiro
447 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 9.3% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 4,832
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
- 447
- 9.3% of Brazil's
- Of every 100 companies in Rio de Janeiro
- 0.0
- do this activity
- Among Brazil's federative units
- 3rd
- 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 8 of 10- CENTRUS FETAL SERVICOS DE ULTRASSONOGRAFIA EM MEDICINA FETAL LTDANiterói (RJ)
- JFMORITZ SERVICOS MEDICOS LTDARio de Janeiro (RJ)
- FERREIRA IMAGEM MEDICA LTDASanto Antônio de Pádua (RJ)
- MELLO COUTINHO DIAGNOSTICO IMAGEM LTDARio de Janeiro (RJ)
- R2 DIAGNOSTICOS POR IMAGEMRio de Janeiro (RJ)
- LEAL SERVICOS DE DIAGNOSTICO POR IMAGEM LTDARio de Janeiro (RJ)
- MARTINS NASSIF MEDICOS ASSOCIADOS LTDAItaperuna (RJ)
- DAIBES MEDICOS ASSOCIADOS S/SRio de Janeiro (RJ)
- ULTRALIFE SERVICOS MEDICOS LTDARio das Ostras (RJ)
- CENTRO RADIOLOGICO LONG LIFE LTDADuque de Caxias (RJ)
- SIATEC SERVICO DE IMAGEM E ASSISTENCIA TECNICA HOSPITALAR LTDARio de Janeiro (RJ)
- ALVARENGA E VASCONCELLOS DIAGNOSTICOS MEDICOS LTDARio de Janeiro (RJ)
- ASSEMED SERVICOS MEDICOS E CONSULTORIA LTDARio de Janeiro (RJ)
- M & V MEDICINA DIAGNOSTICA LTDA-EPPRio de Janeiro (RJ)
- MEDSERVICE SERVICOS MEDICOS LTDARio de Janeiro (RJ)
- CLINICA ODONTOLOGICO DE ULTRASSON MAIS IMAGEM LTDANova Iguaçu (RJ)
- FERREIRA E FANZERES SERVICOS MEDICOS LTDA.Rio de Janeiro (RJ)
- CR EXAMES ULTRASSONOGRAFICOS E SERVICOS MEDICOS LTDASão Gonçalo (RJ)
- FELIPE S RADIOLOGY LTDAMesquita (RJ)
- ULTRASAMA ASSISTENCIA MEDICA LTDARio de Janeiro (RJ)
- NOSSA SENHORA DE FATIMA SOCIEDADE UNIPESSOAL LIMITADANova Friburgo (RJ)
- CARUSO DIAGNOSTICO LTDARio Bonito (RJ)
- C RIBAS DIAGNOSTICOS POR IMAGEM E ATENDIMENTO MEDICO LTDARio de Janeiro (RJ)
- RADMED DIAGNOSTICO POR IMAGEM LTDARio de Janeiro (RJ)
- CDILIFE CLINICA DE DIAGNOSTICOS LIFE LTDARio de Janeiro (RJ)
- RADIOLOGIA FOLLY LTDAItaperuna (RJ)
- MEDCIM DIAGNOSTICOS POR IMAGEM LTDA.Rio de Janeiro (RJ)
- ULTRA SOM MEDICO MACAE LTDAMacaé (RJ)
- TOMO SCAN DIAGNOSTICO POR IMAGEM LTDAVolta Redonda (RJ)
- S. R. BIANCO ULTRASSONOGRAFIA E DIAGNOSTICO LTDAVolta Redonda (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 1.1 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 49.7% 222
- 2 Niterói 6.9% 31
- 3 Campos dos Goytacazes 4.3% 19
- 4 Nova Friburgo 3.1% 14
- 5 Nova Iguaçu 3.1% 14
- 6 Petrópolis 2.9% 13
- 7 Macaé 2.7% 12
- 8 São Gonçalo 2.7% 12
- 9 Cabo Frio 2.5% 11
- 10 Volta Redonda 2.5% 11
20 more cities
- 11 Rio das Ostras 7
- 12 Teresópolis 6
- 13 Barra Mansa 5
- 14 Itaperuna 5
- 15 Santo Antônio de Pádua 5
- 16 Duque de Caxias 4
- 17 Rio Bonito 4
- 18 Três Rios 4
- 19 Mesquita 3
- 20 Araruama 3
- 21 Bom Jesus do Itabapoana 3
- 22 São Pedro da Aldeia 3
- 23 Valença 3
- 24 Armação dos Búzios 2
- 25 Belford Roxo 2
- 26 Angra dos Reis 2
- 27 Barra do Piraí 2
- 28 Cordeiro 2
- 29 Itaboraí 2
- 30 Itaocara 2
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 | 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 · this one | 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: 8640-2/04 · Computed tomography services, 591 companies in Rio de Janeiro.
What activity 8640-2/07 is
- Os serviços que realizam exames de ultrassonografia
Frequently asked questions
How many companies have main CNAE 8640-2/07 in Rio de Janeiro?
447 active companies have CNAE 8640-2/07 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 222, 49.7% 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.