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CNAE 4322-3/01 · Brazil

Instalações hidráulicas, sanitárias e de gás

38,838 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
38,838
144th of 1,329 activities
Opened in 12 months
8,968
+18.7% · 112th by openings
Of every 100 companies in the country
0.1
do this activity
Openings per 100 active
23
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.

Look up companies in this activity (up to 300)

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.

Where the companies are

Acre: 16 companies, 0.0 of every 100 active companies there Alagoas: 206 companies, 0.1 of every 100 active companies there Amapá: 22 companies, 0.0 of every 100 active companies there Amazonas: 237 companies, 0.1 of every 100 active companies there Bahia: 1,159 companies, 0.1 of every 100 active companies there Ceará: 554 companies, 0.1 of every 100 active companies there Distrito Federal: 641 companies, 0.1 of every 100 active companies there Espírito Santo: 741 companies, 0.1 of every 100 active companies there Goiás: 1,214 companies, 0.1 of every 100 active companies there Maranhão: 257 companies, 0.1 of every 100 active companies there Mato Grosso: 593 companies, 0.1 of every 100 active companies there Mato Grosso do Sul: 473 companies, 0.1 of every 100 active companies there Minas Gerais: 4,585 companies, 0.2 of every 100 active companies there Pará: 351 companies, 0.1 of every 100 active companies there Paraíba: 391 companies, 0.1 of every 100 active companies there Paraná: 3,370 companies, 0.2 of every 100 active companies there Pernambuco: 590 companies, 0.1 of every 100 active companies there Piauí: 264 companies, 0.1 of every 100 active companies there Rio de Janeiro: 3,997 companies, 0.2 of every 100 active companies there Rio Grande do Norte: 240 companies, 0.1 of every 100 active companies there Rio Grande do Sul: 3,197 companies, 0.2 of every 100 active companies there Rondônia: 82 companies, 0.1 of every 100 active companies there Roraima: 30 companies, 0.1 of every 100 active companies there Santa Catarina: 2,835 companies, 0.2 of every 100 active companies there São Paulo: 12,362 companies, 0.1 of every 100 active companies there Sergipe: 213 companies, 0.1 of every 100 active companies there Tocantins: 210 companies, 0.1 of every 100 active companies there

Weight in each federative unit: of every 100 active companies, how many have this main activity

  1. 0.0 – 0.1
  2. 0.1
  3. 0.1
  4. 0.1
  5. 0.2

Federative units with the most companies

  1. 1 São Paulo 12,362
  2. 2 Minas Gerais 4,585
  3. 3 Rio de Janeiro 3,997
  4. 4 Paraná 3,370
  5. 5 Rio Grande do Sul 3,197
  6. 6 Santa Catarina 2,835
  7. 7 Goiás 1,214
  8. 8 Bahia 1,159
  9. 9 Espírito Santo 741
  10. 10 Distrito Federal 641
See the 27 federative units
  1. 11 Mato Grosso 593
  2. 12 Pernambuco 590
  3. 13 Ceará 554
  4. 14 Mato Grosso do Sul 473
  5. 15 Paraíba 391
  6. 16 Pará 351
  7. 17 Piauí 264
  8. 18 Maranhão 257
  9. 19 Rio Grande do Norte 240
  10. 20 Amazonas 237
  11. 21 Sergipe 213
  12. 22 Tocantins 210
  13. 23 Alagoas 206
  14. 24 Rondônia 82
  15. 25 Roraima 30
  16. 26 Amapá 22
  17. 27 Acre 16

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 3,789
  2. 2 Rio de Janeiro (RJ) 1,880
  3. 3 Belo Horizonte (MG) 842
  4. 4 Curitiba (PR) 778
  5. 5 Brasília (DF) 641
  6. 6 Porto Alegre (RS) 457
  7. 7 Salvador (BA) 455
  8. 8 Ribeirão Preto (SP) 387
  9. 9 Campinas (SP) 384
  10. 10 Goiânia (GO) 347
See the 30 cities
  1. 11 Fortaleza (CE) 335
  2. 12 Campo Grande (MS) 293
  3. 13 Uberlândia (MG) 282
  4. 14 Sorocaba (SP) 267
  5. 15 Londrina (PR) 265
  6. 16 Joinville (SC) 257
  7. 17 Nova Iguaçu (RJ) 255
  8. 18 São José dos Campos (SP) 255
  9. 19 Guarulhos (SP) 248
  10. 20 São Gonçalo (RJ) 228
  11. 21 Caxias do Sul (RS) 214
  12. 22 Duque de Caxias (RJ) 212
  13. 23 Manaus (AM) 206
  14. 24 Cascavel (PR) 202
  15. 25 Contagem (MG) 197
  16. 26 Bauru (SP) 194
  17. 27 João Pessoa (PB) 190
  18. 28 Recife (PE) 188
  19. 29 Blumenau (SC) 187
  20. 30 Aparecida de Goiânia (GO) 177

What activity 4322-3/01 is

  1. Section F — Construção
  2. Division — Serviços especializados para construção
  3. Group — Instalações elétricas, hidráulicas e outras instalações em construções
  4. 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 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)

What it does not cover

Typical activities

  • Instalação de encanamentos
  • Instalação de placas coletoras para instalações térmicas alimentadas por energia solar, quando executada por unidade especializada
  • Instalação de redes para distribuição de fluidos diversos (oxigênio nos hospitais)
  • Instalação de redes para distribuição de gases e fluidos
  • Instalação de sistema de aquecimento solar, quando executada por unidade especializada
  • Instalação de sistemas para purificação e filtragem de água em prédios industriais, hospitais e outros tipos de edifícios
  • Instalações hidráulicas, sanitárias e de gás (construção)
  • Instalações hidráulicas, sanitárias e de gás, reparação ou manutenção de
  • Redes para distribuição para fluídos diversos (oxigênio nos hospitais), reparação ou manutenção de
  • Serviço de encanação residencial
  • Serviço de preparação de instalações hidráulicas ou de gás prediais para possibilitar o uso de aparelhos e equipamentos domésticos
  • Serviços de bombeiros hidráulicos
See the other 1 typical activities
  • Serviços hidráulicos

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 4322-3

instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass
SubclassActiveOpeningsChange
4322-3/01 Instalações hidráulicas, sanitárias e de gás · this one38,8388,968+18.7%
4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração109,87723,356+8.6%
4322-3/03 Instalações de sistema de prevenção contra incêndio8,5391,648+8.4%

Frequently asked questions about CNAE 4322-3/01

How many CNAE 4322-3/01 companies are there in Brazil?

38,838 active companies have CNAE 4322-3/01 as their main activity, according to the Receita Federal's October 2026 publication. It is 144th 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 12,362. There, 0.1 of every 100 active companies have this main activity, against 0.1 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.