CNAE 4322-3/03 · Maranhão
Installation of fire prevention systems in Maranhão
146 active companies are headquartered in Maranhão with this CNAE as their main activity. They represent 1.7% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 8,539
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
- 146
- 1.7% of Brazil's
- Of every 100 companies in Maranhão
- 0.0
- do this activity
- Among Brazil's federative units
- 13th
- 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 5 of 5- IZAMAYRA KELLY SARMENTO COSTASão Luís (MA)
- ELARMHON HUMBERTO PADILHA MOREIRA FILHOSão Luís (MA)
- WELLINGTHON NEVES DE MEDEIROSSão Luís (MA)
- JARDIANA NOGUEIRA PEREIRASão Luís (MA)
- FABIO ANTONIO DAMASCENO FERREIRAAçailândia (MA)
- ANNE GABRIELLE ASSUNCAO SANTOSAçailândia (MA)
- KEMUEL FERNANDES DE ARAUJOSão Luís (MA)
- JOAO VICTOR GONCALVES CRUZSão Luís (MA)
- THIAGO ARAUJO DA SILVASão Luís (MA)
- ROSILENE SOUSA FERREIRA COSTASão Luís (MA)
- YASMIN VITORIA RODRIGUES AMADORAçailândia (MA)
- LUCAS DE CARVALHO DE OLIVEIRAAçailândia (MA)
- AYTHANA CRYSTYNAH COSTA BATASão Luís (MA)
- YAGO BARBOZA DA SILVAAçailândia (MA)
- DIOGO LAMARTINE CAMARA FRANCAPalmeirândia (MA)
- MARLYSSON SOARES ARAUJOSão Luís (MA)
- DEMERVAL DAYLSON FONSECA PIMENTASão Luís (MA)
- TACILENE DA VITORIA MARAMALDOSão Luís (MA)
- ISABELLY CRISTINA DE JESUS CORREIASão Luís (MA)
- JEFERSON MAYCOM GOMES COSTAPinheiro (MA)
- AMANDA PINHEIRO SANTOSSão Luís (MA)
- LARA STHEPHANNY SILVA COSTASão Luís (MA)
- MARINHO DE JESUS ARAUJOSão Luís (MA)
- DANIEL ANDRE DA SILVASão Luís (MA)
- DANIEL BARBOSA PEREIRASão José de Ribamar (MA)
- M. PEREIRA CRUZSão José de Ribamar (MA)
List limited to 146 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
- Maranhão0.0
- Brazil0.0
In Maranhão, the activity weighs 1.3 times what it does 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 64.4% 94
- 2 São José de Ribamar 11.6% 17
- 3 Açailândia 5.5% 8
- 4 Paço do Lumiar 3.4% 5
- 5 Imperatriz 2.7% 4
- 6 Caxias 2.1% 3
- 7 Codó 1.4% 2
- 8 Coelho Neto 1.4% 2
- 9 Palmeirândia 1.4% 2
- 10 Timon 1.4% 2
7 more cities
- 11 Igarapé do Meio 1
- 12 Balsas 1
- 13 Barra do Corda 1
- 14 Barreirinhas 1
- 15 Pinheiro 1
- 16 Santa Inês 1
- 17 Estreito 1
Class 4322-3 in Maranhão
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active |
|---|---|
| 4322-3/01 Plumbing, sanitary and gas installations | 257 |
| 4322-3/02 Installation and maintenance of central air conditioning, ventilation and refrigeration systems | 2,123 |
| 4322-3/03 Installation of fire prevention systems · this one | 146 |
Close to this: 8020-0/01 · Monitoring of electronic security systems, 257 companies in Maranhão.
What activity 4322-3/03 is
- A instalação, alteração, manutenção e reparo, em todos os tipos de construções, de sistemas de prevenção contra incêndio
Frequently asked questions
How many companies have main CNAE 4322-3/03 in Maranhão?
146 active companies have CNAE 4322-3/03 as their main activity in Maranhão, according to the Receita Federal's October 2026 publication. That is 0.0 of every 100 companies there, against 0.0 in Brazil.
Which of Maranhão's cities has the most companies in this activity?
São Luís, with 94, 64.4% 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.