CNAE 3321-0/00 · Piauí
Installation of industrial machinery and equipment in Piauí
158 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 0.3% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 54,145
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
- 158
- 0.3% of Brazil's
- Of every 100 companies in Piauí
- 0.1
- do this activity
- Among Brazil's federative units
- 24th
- 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 4 of 6- NILO RONNIERY CAVALCANTE AMORIM DE ANDRADETeresina (PI)
- DAVI CARDOSO IBIAPINATeresina (PI)
- IURI MENEZES DE FARIASTeresina (PI)
- PATRICK FERNANDES LUSTOSA DOS REISCurimatá (PI)
- GUILHERME RODRIGUES FERREIRA DA SILVATeresina (PI)
- ANTONIO FRANCISCO DE JESUS PEREIRATeresina (PI)
- WILLAME RODRIGUES SIMOESTeresina (PI)
- ELDIONE DE SOUSA ROCHAFloriano (PI)
- EDUARDO MENESES DE SOUSATeresina (PI)
- FRANCISCO EVENILSON DE SOUSA SILVAMonte Alegre do Piauí (PI)
- ANTONIO FRANCISCO DE SOUSA JUNIORTeresina (PI)
- RAIMUNDO NONATO RIBEIRO DA SILVASão Raimundo Nonato (PI)
- MARCOS ANTONIO DA SILVA NUNESBatalha (PI)
- ANDERSON SA DE SANTANARibeira do Piauí (PI)
- LUIS FERNANDO ANDRADE DA SILVAFloriano (PI)
- WELLINGTON DIAS MENDESBuriti dos Lopes (PI)
- ANTONIO FRANCISCO DOS SANTOSValença do Piauí (PI)
- ANTONIO DE MELO LIMATeresina (PI)
- MARCOS JAILSON DE SOUSA ARAUJOTeresina (PI)
- MARCO ANTONIO DE JESUS SATURNINOAnísio de Abreu (PI)
- EDINALDO PINHEIRO DO NASCIMENTOBarro Duro (PI)
- RAFAEL NASCIMENTO ROQUETeresina (PI)
- RAFAEL ARAUJO FEITOSATeresina (PI)
- RAFAEL VICTOR CABRAL SOUSATeresina (PI)
- LUIZ FELIPE RODRIGUES SILVATeresina (PI)
- CLEVES PINHO RAMOS LIMASão João do Arraial (PI)
- ANTONIO DE PADUA SOUZA BARROSTeresina (PI)
- JOAO VITOR ALMEIDA DE CARVALHOTeresina (PI)
- MISAEL RUBENS NONATOSimões (PI)
- HANDSON BEVILAQUA MACHADOParnaíba (PI)
List limited to 158 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
- Brazil0.2
In Piauí, the activity weighs less than in Brazil.
Piauí's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Teresina 50.6% 80
- 2 Parnaíba 6.3% 10
- 3 Floriano 4.4% 7
- 4 Picos 3.2% 5
- 5 Uruçuí 2.5% 4
- 6 Canto do Buriti 1.9% 3
- 7 São João do Piauí 1.9% 3
- 8 São Raimundo Nonato 1.9% 3
- 9 Campo Maior 1.3% 2
- 10 Curimatá 1.3% 2
20 more cities
- 11 Jaicós 2
- 12 Novo Oriente do Piauí 2
- 13 Simões 2
- 14 Alvorada do Gurguéia 1
- 15 Boa Hora 1
- 16 Boqueirão do Piauí 1
- 17 Campo Alegre do Fidalgo 1
- 18 Cocal dos Alves 1
- 19 Juazeiro do Piauí 1
- 20 Lagoa do Piauí 1
- 21 Olho D'Água do Piauí 1
- 22 Ribeira do Piauí 1
- 23 São João do Arraial 1
- 24 Altos 1
- 25 Anísio de Abreu 1
- 26 Barras 1
- 27 Barro Duro 1
- 28 Batalha 1
- 29 Bom Jesus 1
- 30 Buriti dos Lopes 1
What activity 3321-0/00 is
- A instalação de aparelhos e instrumentos de medida, teste e controle e de equipamentos para controle de processos industriais
- A instalação de equipamentos e instrumentos ópticos
- A instalação de aparelhos e equipamentos de irradiação, eletromédicos e eletroterapêuticos
Frequently asked questions
How many companies have main CNAE 3321-0/00 in Piauí?
158 active companies have CNAE 3321-0/00 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 0.2 in Brazil.
Which of Piauí's cities has the most companies in this activity?
Teresina, with 80, 50.6% 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.