CNAE 4322-3/01 · Maranhão
Instalações hidráulicas, sanitárias e de gás in Maranhão
257 active companies are headquartered in Maranhão 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 Maranhão
- 257
- 0.7% of Brazil's
- Of every 100 companies in Maranhão
- 0.1
- do this activity
- Among Brazil's federative units
- 18th
- by companies in this activity
Active companies in Maranhão
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 4 of 9- ALEX JUNIOR RODRIGUES DOS SANTOSPorto Franco (MA)
- WALK DA MOTA DIASPorto Franco (MA)
- DIEGO GOMES MACEDOPeritoró (MA)
- FRANCISCO TADEU PEREIRA DA SILVASão José de Ribamar (MA)
- JEAN JEFFERSON BARROS PACHECOPaço do Lumiar (MA)
- JAIME DOS SANTOS CARDOSOSão Luís (MA)
- ROSIDALVA DE ASSUNCAO SILVASão José de Ribamar (MA)
- R RIBEIRO DA ROCHASão Luís (MA)
- MARCUS AURELIO SA COELHOSão Luís (MA)
- JESAIAS FERREIRA ROCHASão Luís (MA)
- PAULO SERGIO MARTINS DOS SANTOSSão Luís (MA)
- LAUDISON CARVALHO DOS SANTOSSão Luís (MA)
- F B SALESLago dos Rodrigues (MA)
- JOSEVALDO LIMA SILVASão Luís (MA)
- ADRYAN MACHADO SANTOSSão Luís (MA)
- EDUARDO RAIMUNDO SILVA JUNIORPinheiro (MA)
- ADRIANA CLAUDIA ROCHA COSTASão José de Ribamar (MA)
- RONALDILSON DOS SANTOS FARIASSão Luís (MA)
- SAMUEL COSTA REISPaço do Lumiar (MA)
- GHEYSIVAN GAMA PEREIRA OLIVEIRASão José de Ribamar (MA)
- NIVALDO FERREIRA MORAESSão José de Ribamar (MA)
- BRUNO BASTOS FERREIRASão Luís (MA)
- ADEILTON CORREIA DA SILVASão Luís (MA)
- SILMAR ROCHA DE OLIVEIRAJoão Lisboa (MA)
- EDNALDO HENRIQUE DA SILVAImperatriz (MA)
- DORIEDSON SOEIROSão Luís (MA)
- MOISES DA SILVASanta Inês (MA)
- JONATHAN CASSIO DA SILVATimon (MA)
- DANIEL PROTASIO SANTOSSão José de Ribamar (MA)
- JOSE RAIMUNDO COSTA DE ARAUJOSão Luís (MA)
List limited to 257 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
- Maranhão0.1
- Brazil0.1
In Maranhão, the activity weighs less than in Brazil.
Maranhão's cities with the most companies in this activity
active companies and each city's share of the state
- 1 São Luís 45.5% 117
- 2 Imperatriz 9.3% 24
- 3 São José de Ribamar 7.0% 18
- 4 Paço do Lumiar 5.8% 15
- 5 Timon 3.9% 10
- 6 Santa Inês 2.3% 6
- 7 Açailândia 2.3% 6
- 8 Raposa 1.6% 4
- 9 Arari 1.2% 3
- 10 Bacabal 1.2% 3
20 more cities
- 11 Caxias 3
- 12 Codó 3
- 13 Lago da Pedra 3
- 14 Pedreiras 3
- 15 Porto Franco 3
- 16 Presidente Dutra 3
- 17 Davinópolis 2
- 18 Peritoró 2
- 19 Barreirinhas 2
- 20 Paraibano 2
- 21 Vitória do Mearim 2
- 22 Governador Edison Lobão 1
- 23 Governador Nunes Freire 1
- 24 Lago dos Rodrigues 1
- 25 Santana do Maranhão 1
- 26 Alcântara 1
- 27 Alto Parnaíba 1
- 28 Balsas 1
- 29 Barra do Corda 1
- 30 Buriti Bravo 1
Class 4322-3 in Maranhão
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active |
|---|---|
| 4322-3/01 Instalações hidráulicas, sanitárias e de gás · this one | 257 |
| 4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração | 2,123 |
| 4322-3/03 Instalações de sistema de prevenção contra incêndio | 146 |
Close to this: 4321-5/00 · Instalação e manutenção elétrica, 3,367 companies in Maranhão.
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 Maranhão?
257 active companies have CNAE 4322-3/01 as their main activity in Maranhão, 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 Maranhão's cities has the most companies in this activity?
São Luís, with 117, 45.5% 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 Maranhão.