CNAE 4322-3/03 · Brazil
Instalações de sistema de prevenção contra incêndio
8,539 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
What this list shows
We count each active company in the Brazilian CNPJ registry once, by its head office 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.
- Active companies
- 8,539
- 337th of 1,329 activities
- Opened in 12 months
- 1,648
- +8.4% · 292nd by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 19
- in the country: 21
Active companies in this activity
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.- AC&F SERVICOS TECNICOS LTDASão Paulo (SP)
- QUALIMAN ENGENHARIA E MONTAGENS LTDA - EM RECUPERACAO JUDICIALItaquaquecetuba (SP)
- SERG BRASIL SERVICOS TECNICOS LTDANiterói (RJ)
- BETA X FIRE SISTEMA CONTRA INCENDIO LTDARio de Janeiro (RJ)
- ARGUS PRODUTOS E SISTEMAS CONTRA INCENDIO LTDAVinhedo (SP)
- TECHNORT SOLUTIONS LTDASão Paulo (SP)
- AR & GAS - SYSTEMS E COMERCIO LTDA.Arroio dos Ratos (RS)
- C A DISTRIBUICAO DE MATERIAS E SERVICOS DE SISTEMAS DE CONBATE A INCENCIO LIMITADABarreiras (BA)
- RESBRITEC CONSTRUCOES COMERCIO E SERVICOS LTDADuque de Caxias (RJ)
- UPTAL ENGENHARIA CONSULTORIA E COMERCIO DE ARTIGOS CONTRA INCENDIO LIMITADARio de Janeiro (RJ)
- GLOBAL SYSTEM PREVENCAO CONTRA INCENDIO LTDASão Paulo (SP)
- OMINI SISTEMAS ESPECIAIS CONTRA INCENDIO LTDASão Paulo (SP)
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.
Where the companies are
Weight in each federative unit: of every 100 active companies, how many have this main activity
- 0.0
- 0.0
- 0.0
- 0.0
- 0.0
Federative units with the most companies
- 1 São Paulo 3,082
- 2 Rio de Janeiro 869
- 3 Rio Grande do Sul 829
- 4 Minas Gerais 695
- 5 Bahia 388
- 6 Santa Catarina 371
- 7 Paraná 313
- 8 Goiás 261
- 9 Pernambuco 252
- 10 Distrito Federal 209
See the 26 federative units
- 11 Espírito Santo 196
- 12 Ceará 167
- 13 Maranhão 146
- 14 Pará 96
- 15 Mato Grosso do Sul 93
- 16 Rio Grande do Norte 92
- 17 Paraíba 89
- 18 Mato Grosso 79
- 19 Amazonas 76
- 20 Alagoas 53
- 21 Sergipe 47
- 22 Tocantins 41
- 23 Rondônia 36
- 24 Piauí 28
- 25 Amapá 16
- 26 Acre 9
Cities with the most companies
active companies by head office
- 1 São Paulo (SP) 996
- 2 Rio de Janeiro (RJ) 487
- 3 Brasília (DF) 209
- 4 Belo Horizonte (MG) 206
- 5 Salvador (BA) 178
- 6 Guarulhos (SP) 155
- 7 Porto Alegre (RS) 139
- 8 Curitiba (PR) 110
- 9 Fortaleza (CE) 104
- 10 Recife (PE) 104
See the 30 cities
- 11 Goiânia (GO) 97
- 12 São Luís (MA) 94
- 13 São Bernardo do Campo (SP) 91
- 14 Campinas (SP) 87
- 15 Santo André (SP) 76
- 16 Manaus (AM) 69
- 17 Sorocaba (SP) 67
- 18 Osasco (SP) 56
- 19 João Pessoa (PB) 50
- 20 Aparecida de Goiânia (GO) 50
- 21 São José dos Campos (SP) 49
- 22 Joinville (SC) 48
- 23 Uberlândia (MG) 44
- 24 Duque de Caxias (RJ) 44
- 25 Vila Velha (ES) 43
- 26 Ribeirão Preto (SP) 43
- 27 Itajaí (SC) 43
- 28 Praia Grande (SP) 42
- 29 Caxias do Sul (RS) 42
- 30 Natal (RN) 41
What activity 4322-3/03 is
- Section F — Construção
- Division — Serviços especializados para construção
- Group — Instalações elétricas, hidráulicas e outras instalações em construções
- Class — Instalações hidráulicas, de sistemas de ventilação e refrigeração
What it covers
- A instalação, alteração, manutenção e reparo, em todos os tipos de construções, de sistemas de prevenção contra incêndio
What it does not cover
- O monitoramento, inclusive por meio remoto, de sistemas de alarme de segurança e incêndio eletrônicos, inclusive a sua instalação e manutenção (8020-0/01)Classified under: 8020-0/01 Atividades de monitoramento de sistemas de segurança eletrônico
Typical activities
- Instalação de alarme anti-fogo
- Instalação de equipamentos extintores de incêndio
- Instalação de sistema de detecção de incêndio
- Instalação de sistemas de prevenção contra incêndio
- Instalação de sprinklers automáticos contra fogo
- Instalações de sistemas de prevenção contra incêndio (construção)
- Manutenção de sistemas de alarme contra incêndio
- Sistemas de prevenção contra incêndio, reparação ou manutenção de
The activities of class 4322-3
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active | Openings | Change |
|---|---|---|---|
| 4322-3/01 Instalações hidráulicas, sanitárias e de gás | 38,838 | 8,968 | +18.7% |
| 4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração | 109,877 | 23,356 | +8.6% |
| 4322-3/03 Instalações de sistema de prevenção contra incêndio · this one | 8,539 | 1,648 | +8.4% |
Frequently asked questions about CNAE 4322-3/03
How many CNAE 4322-3/03 companies are there in Brazil?
8,539 active companies have CNAE 4322-3/03 as their main activity, according to the Receita Federal's October 2026 publication. It is 337th among the country's activities by companies.
Which activities make up class 4322-3?
Class 4322-3 has 3 subclasses: 4322-3/01; 4322-3/02; 4322-3/03. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.
Which federative unit has the most companies in this activity?
São Paulo, with 3,082. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.
Does this total include branches and secondary activities?
No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.
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 in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.