CNAE 4322-3/01 · Piauí
Instalações hidráulicas, sanitárias e de gás in Piauí
264 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 0.7% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 38,838
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
- 264
- 0.7% of Brazil's
- Of every 100 companies in Piauí
- 0.1
- do this activity
- Among Brazil's federative units
- 17th
- 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 7 of 9- ANTONIO DARCYO PEREIRA DE SOUSATeresina (PI)
- JAILSON DE OLIVEIRA SOUZADomingos Mourão (PI)
- ADAO DE SOUSANova Santa Rita (PI)
- ERIVELTON DA COSTA VELOSOMassapê do Piauí (PI)
- RAIMUNDO ANTONIO DE SOUSABoqueirão do Piauí (PI)
- GABRIEL FERREIRA NETOPedro Laurentino (PI)
- IVAN RODRIGUES DE ARAUJOBrasileira (PI)
- EMERSON SANTOS CARVALHOCurrais (PI)
- CARLOS VIEIRA LEITESão Miguel do Tapuio (PI)
- DAVID JOSE DE SOUSA LIMACaridade do Piauí (PI)
- ISAEL PEREIRA DA SILVAMiguel Leão (PI)
- MARIO NONATO DA SILVAJerumenha (PI)
- FRANCISCO WALTER MONTE SILVABuriti dos Montes (PI)
- JOSE FRANCISCO PEREIRA DE SOUSAColônia do Piauí (PI)
- FABIO DE ASSIS GOMESSanta Cruz dos Milagres (PI)
- DANIVALDO DA COSTA QUEIROZManoel Emídio (PI)
- JOSIVONE DE SOUSA SANTANAAnísio de Abreu (PI)
- MICAEL VIEIRA DE CARVALHOCocal (PI)
- MAIKONAITH BISPO DE OLIVEIRASanta Rosa do Piauí (PI)
- VINICIUS SANTOS DE OLIVEIRAJuazeiro do Piauí (PI)
- JOAO BATISTA BARBOSA DE ARAUJOBoa Hora (PI)
- IKARO DOS SANTOS BRITOSão João do Arraial (PI)
- PABLO SANTOS DE ARAUJOAgricolândia (PI)
- JOSE FRANCISCO FERNANDESCaraúbas do Piauí (PI)
- FRANCISCO GUILHERME SILVA LIMAJoca Marques (PI)
- PEDRO GABRIEL ALVES DA COSTAJardim do Mulato (PI)
- MOCHEL CALDAS DA SILVATeresina (PI)
- ELICLECIO ROMANO FONTENELEBom Princípio do Piauí (PI)
- MANOEL DOS SANTOS MACEDOCurral Novo do Piauí (PI)
- WILLIAN BRITO DE ARAUJOCocal dos Alves (PI)
List limited to 264 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 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 34.1% 90
- 2 Boqueirão do Piauí 3.8% 10
- 3 Picos 3.0% 8
- 4 Floriano 2.7% 7
- 5 Lagoa do Piauí 1.9% 5
- 6 Jaicós 1.9% 5
- 7 Oeiras 1.5% 4
- 8 Parnaíba 1.5% 4
- 9 Murici dos Portelas 1.1% 3
- 10 Porto 1.1% 3
20 more cities
- 11 Buriti dos Montes 3
- 12 Acauã 2
- 13 Belém do Piauí 2
- 14 Capitão Gervásio Oliveira 2
- 15 Caridade do Piauí 2
- 16 Cocal dos Alves 2
- 17 Floresta do Piauí 2
- 18 Milton Brandão 2
- 19 São João do Arraial 2
- 20 Barras 2
- 21 Elesbão Veloso 2
- 22 Esperantina 2
- 23 Fronteiras 2
- 24 Isaías Coelho 2
- 25 José de Freitas 2
- 26 Manoel Emídio 2
- 27 Marcos Parente 2
- 28 Pedro II 2
- 29 Piracuruca 2
- 30 Santo Inácio do Piauí 2
Class 4322-3 in Piauí
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active |
|---|---|
| 4322-3/01 Instalações hidráulicas, sanitárias e de gás · this one | 264 |
| 4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração | 1,284 |
| 4322-3/03 Instalações de sistema de prevenção contra incêndio | 28 |
Close to this: 4321-5/00 · Instalação e manutenção elétrica, 2,237 companies in Piauí.
What activity 4322-3/01 is
- A instalação, alteração, manutenção e reparo em todos os tipos de construções de: #- sistemas de aquecimento (coletor solar, gás e óleo), exceto elétricos #- equipamentos hidráulicos e sanitários #- ligações de gás #- tubulações de vapor
- A instalação, alteração, manutenção e reparo de rede para distribuição de gases e fluídos diversos (p. ex., oxigênio nos hospitais)
Frequently asked questions
How many companies have main CNAE 4322-3/01 in Piauí?
264 active companies have CNAE 4322-3/01 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 90, 34.1% 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.