EN
Appearance

To remember this theme on future pages, allow saved preferences. Cookie preferences

Could not save. Check that your browser allows cookies and try again.

MenuClose

Preferences

LanguageEnglish
AppearanceSystem
Appearance

To remember this theme on future pages, allow saved preferences. Cookie preferences

Could not save. Check that your browser allows cookies and try again.

CNAE 8640-2/05 · Brazil

Serviços de diagnóstico por imagem com uso de radiação ionizante, exceto tomografia

9,757 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.

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

What this list shows

We count each active company in the Brazilian CNPJ registry once, by its head office 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.

Active companies
9,757
315th of 1,329 activities
Opened in 12 months
829
−1.4% · 384th by openings
Of every 100 companies in the country
0.0
do this activity
Openings per 100 active
8
in the country: 21

Active companies in this activity

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.

Look up companies in this activity (up to 300)

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.

Where the companies are

Acre: 14 companies, 0.0 of every 100 active companies there Alagoas: 71 companies, 0.0 of every 100 active companies there Amapá: 13 companies, 0.0 of every 100 active companies there Amazonas: 87 companies, 0.0 of every 100 active companies there Bahia: 480 companies, 0.0 of every 100 active companies there Ceará: 245 companies, 0.0 of every 100 active companies there Distrito Federal: 138 companies, 0.0 of every 100 active companies there Espírito Santo: 224 companies, 0.0 of every 100 active companies there Goiás: 507 companies, 0.1 of every 100 active companies there Maranhão: 198 companies, 0.1 of every 100 active companies there Mato Grosso: 275 companies, 0.1 of every 100 active companies there Mato Grosso do Sul: 153 companies, 0.0 of every 100 active companies there Minas Gerais: 1,087 companies, 0.0 of every 100 active companies there Pará: 197 companies, 0.0 of every 100 active companies there Paraíba: 132 companies, 0.0 of every 100 active companies there Paraná: 914 companies, 0.0 of every 100 active companies there Pernambuco: 231 companies, 0.0 of every 100 active companies there Piauí: 87 companies, 0.0 of every 100 active companies there Rio de Janeiro: 1,023 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 118 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 694 companies, 0.0 of every 100 active companies there Rondônia: 64 companies, 0.0 of every 100 active companies there Roraima: 13 companies, 0.0 of every 100 active companies there Santa Catarina: 459 companies, 0.0 of every 100 active companies there São Paulo: 2,226 companies, 0.0 of every 100 active companies there Sergipe: 48 companies, 0.0 of every 100 active companies there Tocantins: 57 companies, 0.0 of every 100 active companies there

Weight in each federative unit: of every 100 active companies, how many have this main activity

  1. 0.0
  2. 0.0
  3. 0.0
  4. 0.0
  5. 0.0 – 0.1

Federative units with the most companies

  1. 1 São Paulo 2,226
  2. 2 Minas Gerais 1,087
  3. 3 Rio de Janeiro 1,023
  4. 4 Paraná 914
  5. 5 Rio Grande do Sul 694
  6. 6 Goiás 507
  7. 7 Bahia 480
  8. 8 Santa Catarina 459
  9. 9 Mato Grosso 275
  10. 10 Ceará 245
See the 27 federative units
  1. 11 Pernambuco 231
  2. 12 Espírito Santo 224
  3. 13 Maranhão 198
  4. 14 Pará 197
  5. 15 Mato Grosso do Sul 153
  6. 16 Distrito Federal 138
  7. 17 Paraíba 132
  8. 18 Rio Grande do Norte 118
  9. 19 Amazonas 87
  10. 20 Piauí 87
  11. 21 Alagoas 71
  12. 22 Rondônia 64
  13. 23 Tocantins 57
  14. 24 Sergipe 48
  15. 25 Acre 14
  16. 26 Amapá 13
  17. 27 Roraima 13

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 660
  2. 2 Rio de Janeiro (RJ) 455
  3. 3 Curitiba (PR) 194
  4. 4 Belo Horizonte (MG) 182
  5. 5 Goiânia (GO) 161
  6. 6 Salvador (BA) 159
  7. 7 Fortaleza (CE) 148
  8. 8 Porto Alegre (RS) 138
  9. 9 Brasília (DF) 138
  10. 10 Duque de Caxias (RJ) 117
See the 30 cities
  1. 11 Recife (PE) 116
  2. 12 São Luís (MA) 107
  3. 13 Niterói (RJ) 91
  4. 14 Campinas (SP) 88
  5. 15 Manaus (AM) 80
  6. 16 Londrina (PR) 75
  7. 17 Belém (PA) 74
  8. 18 Campo Grande (MS) 69
  9. 19 Natal (RN) 67
  10. 20 João Pessoa (PB) 65
  11. 21 Cuiabá (MT) 61
  12. 22 Ribeirão Preto (SP) 59
  13. 23 Joinville (SC) 57
  14. 24 Uberlândia (MG) 56
  15. 25 Juiz de Fora (MG) 55
  16. 26 Cascavel (PR) 53
  17. 27 Maceió (AL) 49
  18. 28 Ponta Grossa (PR) 48
  19. 29 Santos (SP) 47
  20. 30 São José dos Campos (SP) 47

What activity 8640-2/05 is

  1. Section Q — Saúde humana e serviços sociais
  2. Division — Atividades de atenção à saúde humana
  3. Group — Atividades de serviços de complementação diagnóstica e terapêutica
  4. Class — Atividades de serviços de complementação diagnóstica e terapêutica

What it covers

  • 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

What it does not cover

Typical activities

  • Clínica de radiologia
  • Densitometria óssea
  • Fluoroscopia
  • Hemodinâmica
  • Laboratório radiológico em unidades móveis, exceto com consultas
  • Laboratórios radiológicos em unidades móveis terrestres
  • Mamografia
  • Radiologia odontológica
  • Serviços de abreugrafia
  • Serviços de medicina nuclear
  • Serviços de rádio-imunodiagnóstico
  • Serviços de radiodiagnóstico
See the other 3 typical activities
  • Serviços de radiologia
  • Serviços de radiologia médica
  • Serviços de raios x

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 8640-2

atividades de serviços de complementação diagnóstica e terapêutica, by subclass
SubclassActiveOpeningsChange
8640-2/01 Laboratórios de anatomia patológica e citológica1,59383+6.4%
8640-2/02 Laboratórios clínicos13,924940+12.0%
8640-2/03 Serviços de diálise e nefrologia1,08651−17.7%
8640-2/04 Serviços de tomografia1,802153+22.4%
8640-2/05 Serviços de diagnóstico por imagem com uso de radiação ionizante, exceto tomografia · this one9,757829−1.4%
8640-2/06 Serviços de ressonância magnética841121+72.9%
8640-2/07 Serviços de diagnóstico por imagem sem uso de radiação ionizante, exceto ressonância magnética4,832380+1.9%
8640-2/08 Serviços de diagnóstico por registro gráfico - ecg, eeg e outros exames análogos1,03185+9.0%
8640-2/09 Serviços de diagnóstico por métodos ópticos - endoscopia e outros exames análogos1,27484+35.5%
8640-2/10 Serviços de quimioterapia41024—
8640-2/11 Serviços de radioterapia43052+30.0%
8640-2/12 Serviços de hemoterapia20820—
8640-2/13 Serviços de litotripcia372—
8640-2/14 Serviços de bancos de células e tecidos humanos497—
8640-2/99 Atividades de serviços de complementação diagnóstica e terapêutica não especificadas anteriormente3,328200−11.1%

Frequently asked questions about CNAE 8640-2/05

How many CNAE 8640-2/05 companies are there in Brazil?

9,757 active companies have CNAE 8640-2/05 as their main activity, according to the Receita Federal's October 2026 publication. It is 315th among the country's activities by companies.

Which activities make up class 8640-2?

Class 8640-2 has 15 subclasses: 8640-2/01; 8640-2/02; 8640-2/03; 8640-2/04; 8640-2/05; 8640-2/06; 8640-2/07; 8640-2/08; 8640-2/09; 8640-2/10; 8640-2/11; 8640-2/12; 8640-2/13; 8640-2/14; 8640-2/99. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.

Which federative unit has the most companies in this activity?

São Paulo, with 2,226. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.

Does this total include branches and secondary activities?

No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.

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 in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.

We use what is essential for the site to work and measure visits with Google Analytics, with no advertising. You can refuse the measurement; with your permission, we also remember your theme. Learn more

Customize