CNAE 4322-3/02 · Campo Maior (PI)
Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração in Campo Maior (PI)
20 active companies are headquartered in Campo Maior (PI) with this CNAE as their main activity. They represent less than 0.1% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
What this list shows
We count each active company once, by its head office in the city 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 Campo Maior (PI)
- 20
- less than 0.1% of Brazil's
- Of every 100 companies in Campo Maior (PI)
- 0.6
- do this activity
- Among Piauí's cities
- 5th
- by companies in this activity
Active companies in Campo Maior (PI)
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.- ANTONIO LUCAS BONA CARVALHOCampo Maior (PI)
- WILLCINEY DE A CARVALHOCampo Maior (PI)
- ITALO RODRIGO COSTA SOUSACampo Maior (PI)
- MARIA ELISSE DE OLIVEIRA DA SILVACampo Maior (PI)
- FRANKELI DO NASCIMENTO DE SOUSACampo Maior (PI)
- NILSON ROSACampo Maior (PI)
- JOSIEL ALEX DE SOUSA BRITOCampo Maior (PI)
- ELIANE MARIA DE OLIVEIRA SOUSACampo Maior (PI)
- FLAVIO FEITOSA GONCALVESCampo Maior (PI)
- VALDINAR CARDOSO DOS SANTOSCampo Maior (PI)
- MOZANE SILVA CORREIACampo Maior (PI)
- SILVESTRE DE OLIVEIRA COSTACampo Maior (PI)
- WELLINGTON PEREIRA DA CRUZCampo Maior (PI)
- ONOFRE BARROSO DE OLIVEIRA FILHOCampo Maior (PI)
- JONAS DE ANDRADE PAZCampo Maior (PI)
- ANTONIO PEREIRA DA SILVACampo Maior (PI)
- ANTONIO MARCOS RODRIGUESCampo Maior (PI)
- GELSO PAGNUSSATOCampo Maior (PI)
- JOAO LUCAS GOMES SOUSACampo Maior (PI)
- RONEY BRITO LEANDROCampo Maior (PI)
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
- Campo Maior (PI)0.6
- Piauí0.6
- Brazil0.4
In Campo Maior (PI), the activity weighs 1.5 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 52.8% 678
- 2 Parnaíba 5.9% 76
- 3 Picos 3.2% 41
- 4 Floriano 2.5% 32
- 5 Campo Maior 1.6% 20
- 6 Uruçuí 1.3% 17
- 7 Altos 1.2% 16
- 8 Bom Jesus 1.2% 16
- 9 Corrente 1.1% 14
- 10 São João do Piauí 1.1% 14
20 more cities
- 11 Piripiri 13
- 12 Oeiras 12
- 13 José de Freitas 11
- 14 São Raimundo Nonato 11
- 15 União 10
- 16 Baixa Grande do Ribeiro 10
- 17 Valença do Piauí 9
- 18 Barras 8
- 19 Demerval Lobão 7
- 20 Esperantina 7
- 21 Paulistana 7
- 22 Canto do Buriti 6
- 23 Regeneração 6
- 24 Capitão de Campos 5
- 25 Cristino Castro 5
- 26 Guadalupe 5
- 27 Piracuruca 5
- 28 Água Branca 4
- 29 Alto Longá 4
- 30 Beneditinos 4
Class 4322-3 in Campo Maior (PI)
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active |
|---|---|
| 4322-3/01 Instalações hidráulicas, sanitárias e de gás | 1 |
| 4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração · this one | 20 |
| 4322-3/03 Instalações de sistema de prevenção contra incêndio | 0 |
What activity 4322-3/02 is
- A instalação, alteração, manutenção e reparo em todos os tipos de construções de:
- Sistemas de refrigeração central, quando não realizados pela unidade fabricante
- Sistemas de ventilação mecânica controlada, inclusive exaustores
Frequently asked questions
How many companies have main CNAE 4322-3/02 in Campo Maior (PI)?
20 active companies have CNAE 4322-3/02 as their main activity in Campo Maior (PI), according to the Receita Federal's October 2026 publication. That is 0.6 of every 100 companies there, against 0.4 in Brazil.
Which of Piauí's cities has the most companies in this activity?
Teresina, with 678, 52.8% of the state's companies in this activity.
Why can this total differ from the companies operating in the city?
This scope counts active companies by their head office and registered main activity. A company may operate in the city 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 Campo Maior (PI).