CNAE 8640-2/02 · Piauí
Clinical laboratories in Piauí
331 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 2.4% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 13,924
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 Piauí
- 331
- 2.4% of Brazil's
- Of every 100 companies in Piauí
- 0.1
- do this activity
- Among Brazil's federative units
- 15th
- by companies in this activity
Active companies in Piauí
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 9 of 10- LABORATORIO DE ANALISES CLINICAS SAO LUCAS LTDAFloriano (PI)
- CDLAB CENTRO DE DIAGNOSTICO LABORATORIAL LTDAPicos (PI)
- CLINICA E LABORATORIO SAO GONCALO LTDAAmarante (PI)
- LABORATORIO DE IMUNODIAGNOSTICOS DE TERESINA S/C LTDATeresina (PI)
- ANA ARISSA ANTAO BEZERRAPio IX (PI)
- JANARA MENESES LIMAPalmeirais (PI)
- OSMAN FERREIRA GOISPaulistana (PI)
- R R PEREIRA SERVICO SAUDEMatias Olímpio (PI)
- L G DE S AQUINONazária (PI)
- JULIANA MARIA LEAO DE SOUSACapitão de Campos (PI)
- RONALDO ROCHA DE SOUSAPaulistana (PI)
- A D I RODRIGUES DE ARAUJO LABORATORIOItainópolis (PI)
- FRANCISCO AFONSO RIBEIRO SOBREIRAValença do Piauí (PI)
- JOAO BOSCO LEAL CAMPOSPicos (PI)
- N L N CARDOSO FILHOPedro II (PI)
- M A MOREIRAUruçuí (PI)
- D L MAGALHAES ANALISES CLINICOSEsperantina (PI)
- ADACIA SOARES GAMA LABOCLINAvelino Lopes (PI)
- PEDRO HENRIQUE G ANGEIRASSão Raimundo Nonato (PI)
- RENILDA MARIA GOMESFronteiras (PI)
- ROSEMARY REIS ANTAOPicos (PI)
- EDVARTON BARROS DE DEUS NUNESPicos (PI)
- IDILVAN RIBEIRO DIAS DE MACEDOCaracol (PI)
- TULLIO RODRIGUES LUSTOSACurimatá (PI)
- FRANCISCO DE ASSIS DE CASTRO MELO JUNIORParnaguá (PI)
- IDALIA FERREIRA DA SILVAGilbués (PI)
- MARIA DE FATIMA ROCHA DE ARAUJOColônia do Gurguéia (PI)
- S AGUIAR DA SILVACorrente (PI)
- EDUARDA NEUSA DE CARVALHOSão Julião (PI)
- V K S OLIVEIRATeresina (PI)
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
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- 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
- Piauí0.1
- Brazil0.1
In Piauí, the activity weighs 2.9 times what it does in Brazil.
Piauí's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Teresina 17.8% 59
- 2 Picos 13.0% 43
- 3 Parnaíba 6.3% 21
- 4 Floriano 5.4% 18
- 5 Bom Jesus 2.4% 8
- 6 Oeiras 2.1% 7
- 7 Barras 1.8% 6
- 8 Itaueira 1.8% 6
- 9 Pedro II 1.8% 6
- 10 Piripiri 1.8% 6
20 more cities
- 11 São Raimundo Nonato 6
- 12 Cocal 5
- 13 Valença do Piauí 5
- 14 Campo Maior 4
- 15 Corrente 4
- 16 Esperantina 4
- 17 José de Freitas 4
- 18 São João do Piauí 4
- 19 Uruçuí 4
- 20 Altos 3
- 21 Amarante 3
- 22 Avelino Lopes 3
- 23 Castelo do Piauí 3
- 24 Curimatá 3
- 25 Luzilândia 3
- 26 Paulistana 3
- 27 Piracuruca 3
- 28 Marcolândia 3
- 29 São Francisco de Assis do Piauí 2
- 30 Água Branca 2
Class 8640-2 in Piauí
atividades de serviços de complementação diagnóstica e terapêutica, by subclass| Subclass | Active |
|---|---|
| 8640-2/01 Pathological anatomy and cytology laboratories | 37 |
| 8640-2/02 Clinical laboratories · this one | 331 |
| 8640-2/03 Dialysis and nephrology services | 15 |
| 8640-2/04 Computed tomography services | 18 |
| 8640-2/05 Diagnostic imaging with ionizing radiation, except tomography | 87 |
| 8640-2/06 Magnetic resonance imaging services | 5 |
| 8640-2/07 Diagnostic imaging without ionizing radiation, except MRI | 43 |
| 8640-2/08 Diagnostic services by graphic recording - ECG, EEG and similar tests | 5 |
| 8640-2/09 Diagnostic services by optical methods - endoscopy and similar tests | 22 |
| 8640-2/10 Chemotherapy services | 2 |
| 8640-2/11 Radiotherapy services | 1 |
| 8640-2/12 Hemotherapy services | 0 |
| 8640-2/13 Lithotripsy services | 0 |
| 8640-2/14 Human cell and tissue bank services | 1 |
| 8640-2/99 Diagnostic and therapeutic support services not elsewhere classified | 46 |
Close to this: 8640-2/01 · Pathological anatomy and cytology laboratories, 37 companies in Piauí.
What activity 8640-2/02 is
- As atividades dos laboratórios de análises clínicas
- As atividades dos laboratórios de biologia molecular
- Os postos de coleta laboratorial
Frequently asked questions
How many companies have main CNAE 8640-2/02 in Piauí?
331 active companies have CNAE 8640-2/02 as their main activity in Piauí, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.1 in Brazil.
Which of Piauí's cities has the most companies in this activity?
Teresina, with 59, 17.8% 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 Piauí.