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CNAE 3701-1/00 · Brazil

Gestão de redes de esgoto

395 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
395
920th of 1,329 activities
Opened in 12 months
46
−8.0% · 841st by openings
Of every 100 companies in the country
0.0
do this activity
Openings per 100 active
12
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: 0 companies, 0.0 of every 100 active companies there Alagoas: 8 companies, 0.0 of every 100 active companies there Amapá: 2 companies, 0.0 of every 100 active companies there Amazonas: 17 companies, 0.0 of every 100 active companies there Bahia: 8 companies, 0.0 of every 100 active companies there Ceará: 13 companies, 0.0 of every 100 active companies there Distrito Federal: 5 companies, 0.0 of every 100 active companies there Espírito Santo: 12 companies, 0.0 of every 100 active companies there Goiás: 9 companies, 0.0 of every 100 active companies there Maranhão: 3 companies, 0.0 of every 100 active companies there Mato Grosso: 5 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 4 companies, 0.0 of every 100 active companies there Minas Gerais: 34 companies, 0.0 of every 100 active companies there Pará: 11 companies, 0.0 of every 100 active companies there Paraíba: 3 companies, 0.0 of every 100 active companies there Paraná: 19 companies, 0.0 of every 100 active companies there Pernambuco: 11 companies, 0.0 of every 100 active companies there Piauí: 1 company, 0.0 of every 100 active companies there Rio de Janeiro: 37 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 6 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 32 companies, 0.0 of every 100 active companies there Rondônia: 3 companies, 0.0 of every 100 active companies there Roraima: 0 companies, 0.0 of every 100 active companies there Santa Catarina: 37 companies, 0.0 of every 100 active companies there São Paulo: 110 companies, 0.0 of every 100 active companies there Sergipe: 2 companies, 0.0 of every 100 active companies there Tocantins: 1 company, 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 110
  2. 2 Rio de Janeiro 37
  3. 3 Santa Catarina 37
  4. 4 Minas Gerais 34
  5. 5 Rio Grande do Sul 32
  6. 6 Paraná 19
  7. 7 Amazonas 17
  8. 8 Ceará 13
  9. 9 Espírito Santo 12
  10. 10 Pará 11
See the 25 federative units
  1. 11 Pernambuco 11
  2. 12 Goiás 9
  3. 13 Alagoas 8
  4. 14 Bahia 8
  5. 15 Rio Grande do Norte 6
  6. 16 Distrito Federal 5
  7. 17 Mato Grosso 5
  8. 18 Mato Grosso do Sul 4
  9. 19 Maranhão 3
  10. 20 Paraíba 3
  11. 21 Rondônia 3
  12. 22 Amapá 2
  13. 23 Sergipe 2
  14. 24 Piauí 1
  15. 25 Tocantins 1

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 19
  2. 2 Rio de Janeiro (RJ) 17
  3. 3 Manaus (AM) 15
  4. 4 Barueri (SP) 9
  5. 5 Fortaleza (CE) 8
  6. 6 Avaré (SP) 7
  7. 7 Belo Horizonte (MG) 6
  8. 8 Curitiba (PR) 6
  9. 9 Londrina (PR) 6
  10. 10 Caxias do Sul (RS) 6
See the 30 cities
  1. 11 Recife (PE) 5
  2. 12 Maceió (AL) 5
  3. 13 Salvador (BA) 5
  4. 14 Vitória (ES) 5
  5. 15 Brasília (DF) 5
  6. 16 Juiz de Fora (MG) 4
  7. 17 Jundiaí (SP) 4
  8. 18 Goiânia (GO) 4
  9. 19 Natal (RN) 3
  10. 20 Cachoeiras de Macacu (RJ) 3
  11. 21 Campos dos Goytacazes (RJ) 3
  12. 22 Macaé (RJ) 3
  13. 23 Atibaia (SP) 3
  14. 24 Cotia (SP) 3
  15. 25 Embu das Artes (SP) 3
  16. 26 Guarulhos (SP) 3
  17. 27 Piracicaba (SP) 3
  18. 28 Salto (SP) 3
  19. 29 São Bernardo do Campo (SP) 3
  20. 30 Sorocaba (SP) 3

What activity 3701-1/00 is

  1. Section E — Água, esgoto, atividades de gestão de resíduos e descontaminação
  2. Division — Esgoto e atividades relacionadas
  3. Group — Esgoto e atividades relacionadas
  4. Class — Gestão de redes de esgoto

What it covers

  • A coleta e transporte de esgoto doméstico ou industrial e de águas pluviais por meio de redes de coletores, tanques e outros meios de transporte (p. ex. veículos de esgotamento)
  • A gestão de redes de esgotos domésticos ou industriais e águas pluviais
  • A operação das estações de tratamento de esgoto (ETE)
  • O tratamento de esgoto por meio de processos físicos, químicos e biológicos, tais como: a diluição, seleção, filtragem, sedimentação, etc.
  • O tratamento de águas residuais de indústrias para prevenção da poluição

What it does not cover

Notes

Por convenção, as unidades que operam conjuntamente a captação, tratamento e distribuição de água e a coleta e tratamento de esgotos são classificadas na subclasse 3600-6/01

Typical activities

  • Coleta e transporte de esgoto doméstico ou industrial e de águas pluviais por meio de redes de coletores, tanques ou outros meios de transporte
  • Gestão de redes de esgotos domésticos
  • Gestão de redes de esgotos domésticos ou industriais e águas pluviais
  • Gestão de redes de esgotos industriais
  • Operação de estações de tratamento de esgoto (ete)
  • Serviços de drenagem de águas servidas
  • Serviços de tratamento de efluente (esgoto)
  • Tratamento de águas residuais de indústrias para prevenção da poluição
  • Tratamento de esgoto por meio de processos físicos, químicos e biológicos, tais como: a diluição, seleção, filtragem e sedimentação

Source: IBGE, CNAE 2.3 and its explanatory notes

Frequently asked questions about CNAE 3701-1/00

How many CNAE 3701-1/00 companies are there in Brazil?

395 active companies have CNAE 3701-1/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 920th among the country's activities by companies.

Which federative unit has the most companies in this activity?

São Paulo, with 110. 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.