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CNAE 4222-7/01 · Brazil

Construção de redes de abastecimento de água, coleta de esgoto e construções correlatas, exceto obras de irrigação

3,308 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
3,308
510th of 1,329 activities
Opened in 12 months
350
−8.4% · 507th by openings
Of every 100 companies in the country
0.0
do this activity
Openings per 100 active
11
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: 1 company, 0.0 of every 100 active companies there Alagoas: 20 companies, 0.0 of every 100 active companies there Amapá: 2 companies, 0.0 of every 100 active companies there Amazonas: 13 companies, 0.0 of every 100 active companies there Bahia: 213 companies, 0.0 of every 100 active companies there Ceará: 141 companies, 0.0 of every 100 active companies there Distrito Federal: 49 companies, 0.0 of every 100 active companies there Espírito Santo: 58 companies, 0.0 of every 100 active companies there Goiás: 109 companies, 0.0 of every 100 active companies there Maranhão: 21 companies, 0.0 of every 100 active companies there Mato Grosso: 45 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 50 companies, 0.0 of every 100 active companies there Minas Gerais: 624 companies, 0.0 of every 100 active companies there Pará: 54 companies, 0.0 of every 100 active companies there Paraíba: 48 companies, 0.0 of every 100 active companies there Paraná: 250 companies, 0.0 of every 100 active companies there Pernambuco: 121 companies, 0.0 of every 100 active companies there Piauí: 24 companies, 0.0 of every 100 active companies there Rio de Janeiro: 170 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 30 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 195 companies, 0.0 of every 100 active companies there Rondônia: 8 companies, 0.0 of every 100 active companies there Roraima: 0 companies, 0.0 of every 100 active companies there Santa Catarina: 127 companies, 0.0 of every 100 active companies there São Paulo: 868 companies, 0.0 of every 100 active companies there Sergipe: 42 companies, 0.0 of every 100 active companies there Tocantins: 20 companies, 0.0 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
  2. 0.0
  3. 0.0
  4. 0.0
  5. 0.0

Federative units with the most companies

  1. 1 São Paulo 868
  2. 2 Minas Gerais 624
  3. 3 Paraná 250
  4. 4 Bahia 213
  5. 5 Rio Grande do Sul 195
  6. 6 Rio de Janeiro 170
  7. 7 Ceará 141
  8. 8 Santa Catarina 127
  9. 9 Pernambuco 121
  10. 10 Goiás 109
See the 26 federative units
  1. 11 Espírito Santo 58
  2. 12 Pará 54
  3. 13 Mato Grosso do Sul 50
  4. 14 Distrito Federal 49
  5. 15 Paraíba 48
  6. 16 Mato Grosso 45
  7. 17 Sergipe 42
  8. 18 Rio Grande do Norte 30
  9. 19 Piauí 24
  10. 20 Maranhão 21
  11. 21 Alagoas 20
  12. 22 Tocantins 20
  13. 23 Amazonas 13
  14. 24 Rondônia 8
  15. 25 Amapá 2
  16. 26 Acre 1

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 413
  2. 2 Belo Horizonte (MG) 378
  3. 3 Salvador (BA) 135
  4. 4 Porto Alegre (RS) 94
  5. 5 Fortaleza (CE) 92
  6. 6 Rio de Janeiro (RJ) 85
  7. 7 Curitiba (PR) 85
  8. 8 Recife (PE) 64
  9. 9 Goiânia (GO) 54
  10. 10 Brasília (DF) 49
See the 30 cities
  1. 11 São José dos Campos (SP) 42
  2. 12 Campo Grande (MS) 39
  3. 13 Aracaju (SE) 38
  4. 14 Belém (PA) 31
  5. 15 Natal (RN) 24
  6. 16 João Pessoa (PB) 22
  7. 17 Rio Claro (SP) 22
  8. 18 Florianópolis (SC) 21
  9. 19 Cuiabá (MT) 21
  10. 20 Niterói (RJ) 18
  11. 21 Maceió (AL) 16
  12. 22 Contagem (MG) 16
  13. 23 Serra (ES) 16
  14. 24 Santo André (SP) 16
  15. 25 Joinville (SC) 16
  16. 26 Astorga (PR) 15
  17. 27 Londrina (PR) 15
  18. 28 Vitória (ES) 14
  19. 29 Campinas (SP) 14
  20. 30 Ponta Grossa (PR) 14

What activity 4222-7/01 is

  1. Section F — Construção
  2. Division — Obras de infra-estrutura
  3. Group — Obras de infra-estrutura para energia elétrica, telecomunicações, água, esgoto e transporte por dutos
  4. Class — Construção de redes de abastecimento de água, coleta de esgoto e construções correlatas

What it covers

  • A construção de sistemas para o abastecimento de água tratada: reservatórios de distribuição, estações elevatórias de bombeamento, linhas principais de adução de longa e média distância e redes de distribuição de água
  • A construção de redes de coleta de esgoto, inclusive de interceptores
  • A construção de estações de tratamento de esgoto (ETE)
  • A construção de estações de bombeamento de esgoto
  • A construção de galerias pluviais
  • A manutenção de redes de abastecimento de água tratada
  • A manutenção de redes de coleta e de sistemas de tratamento de esgoto

What it does not cover

Typical activities

  • Esgoto sanitário, inclusive interceptores, construção de
  • Estações de bombeamento de água, esgoto, águas pluviais, construção de
  • Estações de tratamento de esgotos, construção de
  • Galerias pluviais, construção de
  • Lagoas de tratamento de esgotos, construção de
  • Plantas de tratamento de água, construção de (contratante geral)
  • Redes de distribuição de água, construção de
  • Redes de esgoto, inclusive interceptores, construção de
  • Redes de esgotos, construção de
  • Reservatórios de água, construção de
  • Sistema de abastecimento de água, construção de
  • Sistema de saneamento básico, construção de
See the other 2 typical activities
  • Sistemas de distribuição de água, construção de
  • Sistemas de esgotos sanitários, construção de

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 4222-7

construção de redes de abastecimento de água, coleta de esgoto e construções correlatas, by subclass
SubclassActiveOpeningsChange
4222-7/01 Construção de redes de abastecimento de água, coleta de esgoto e construções correlatas, exceto obras de irrigação · this one3,308350−8.4%
4222-7/02 Obras de irrigação30347−6.0%

Frequently asked questions about CNAE 4222-7/01

How many CNAE 4222-7/01 companies are there in Brazil?

3,308 active companies have CNAE 4222-7/01 as their main activity, according to the Receita Federal's October 2026 publication. It is 510th among the country's activities by companies.

Which activities make up class 4222-7?

Class 4222-7 has 2 subclasses: 4222-7/01; 4222-7/02. 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 868. 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.