CNAE 8599-6/05 · Piauí
Preparatory courses for civil service exams in Piauí
281 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 0.9% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 31,965
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
- 281
- 0.9% of Brazil's
- Of every 100 companies in Piauí
- 0.1
- do this activity
- Among Brazil's federative units
- 22nd
- 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 3 of 10- MAIANE SILVA RUFINO DE SOUSAFrancisco Santos (PI)
- MATHEUS CARVALHO SILVATeresina (PI)
- GERALDO FRANCISCO DA SILVAPicos (PI)
- JULIANA RIBEIRO SILVA DO ROSARIOSão Raimundo Nonato (PI)
- VICTOR MOURA DOS SANTOSFloriano (PI)
- N V MARTINSParnaíba (PI)
- EDUARDO ALENCAR DOS SANTOSTeresina (PI)
- E R M NOBREDom Expedito Lopes (PI)
- JOAO PAULO DE OLIVEIRA E SILVAOeiras (PI)
- M C ANDRADE ASSESSORIA ACADEMICATeresina (PI)
- MIRELLA CARVALHO GRANJACurimatá (PI)
- MARIA CLARA DANTAS NUNESAmarante (PI)
- FELIPE HENRIQUE JANUARIO DOS SANTOSRegeneração (PI)
- SARA MAIELY LIMA AGUIARAlvorada do Gurguéia (PI)
- ANA FLAVIA BARROS SOARESParnaíba (PI)
- JULIA AMARAL DA SILVA ARRAISTeresina (PI)
- RENATO SOUSA CASTELO BRANCOTeresina (PI)
- R A CEZARTeresina (PI)
- LYLYANE MOREIRA MOITAUnião (PI)
- EGRINALDO FEITOSA ESCORCIOParnaíba (PI)
- FERNANDO MENDES FILHOTeresina (PI)
- JOSE RAMIRO DA SILVATeresina (PI)
- JOAO VICTOR PENHA MARTINSParnaíba (PI)
- DIEGO CAMPELO IBIAPINATeresina (PI)
- L. QUIXABA FERREIRAParnaíba (PI)
- LENICE P DOS S COUTINHO CURSOSFloriano (PI)
- MAMEDIA NASCIMENTO SOUSAFloriano (PI)
- FRANCISCO DAS CHAGAS FERREIRA DOS SANTOSGuadalupe (PI)
- JOAO VICTOR MIRANDA DE MELOBatalha (PI)
- KAYZA VERAS FONTENELE LOPES SOUSANossa Senhora de Nazaré (PI)
List limited to 281 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
- Piauí0.1
- Brazil0.1
In Piauí, the activity weighs 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 64.1% 180
- 2 Parnaíba 7.5% 21
- 3 Floriano 3.2% 9
- 4 Oeiras 1.8% 5
- 5 Picos 1.8% 5
- 6 Amarante 1.1% 3
- 7 Batalha 1.1% 3
- 8 Bom Jesus 1.1% 3
- 9 São Raimundo Nonato 1.1% 3
- 10 Simplício Mendes 1.1% 3
20 more cities
- 11 Campo Maior 2
- 12 Francisco Santos 2
- 13 Guadalupe 2
- 14 José de Freitas 2
- 15 Paulistana 2
- 16 Piripiri 2
- 17 São João do Piauí 2
- 18 Uruçuí 2
- 19 Acauã 1
- 20 Alvorada do Gurguéia 1
- 21 Assunção do Piauí 1
- 22 Bela Vista do Piauí 1
- 23 Morro do Chapéu do Piauí 1
- 24 Nossa Senhora de Nazaré 1
- 25 São Gonçalo do Gurguéia 1
- 26 São João do Arraial 1
- 27 Água Branca 1
- 28 Altos 1
- 29 Barras 1
- 30 Canto do Buriti 1
Class 8599-6 in Piauí
atividades de ensino não especificadas anteriormente, by subclass| Subclass | Active |
|---|---|
| 8599-6/01 Driver training | 152 |
| 8599-6/02 Piloting courses | 4 |
| 8599-6/03 Computer training | 394 |
| 8599-6/04 Professional and management development training | 2,085 |
| 8599-6/05 Preparatory courses for civil service exams · this one | 281 |
| 8599-6/99 Other education not elsewhere classified | 2,402 |
What activity 8599-6/05 is
- As atividades dos cursos preparatórios para concursos em geral
Frequently asked questions
How many companies have main CNAE 8599-6/05 in Piauí?
281 active companies have CNAE 8599-6/05 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 180, 64.1% 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.