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CNAE 3600-6/01 · Brazil

Captação, tratamento e distribuição de água

1,686 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
1,686
631st of 1,329 activities
Opened in 12 months
108
−19.4% · 697th by openings
Of every 100 companies in the country
0.0
do this activity
Openings per 100 active
6
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: 9 companies, 0.0 of every 100 active companies there Alagoas: 39 companies, 0.0 of every 100 active companies there Amapá: 7 companies, 0.0 of every 100 active companies there Amazonas: 21 companies, 0.0 of every 100 active companies there Bahia: 89 companies, 0.0 of every 100 active companies there Ceará: 69 companies, 0.0 of every 100 active companies there Distrito Federal: 3 companies, 0.0 of every 100 active companies there Espírito Santo: 31 companies, 0.0 of every 100 active companies there Goiás: 49 companies, 0.0 of every 100 active companies there Maranhão: 57 companies, 0.0 of every 100 active companies there Mato Grosso: 69 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 13 companies, 0.0 of every 100 active companies there Minas Gerais: 155 companies, 0.0 of every 100 active companies there Pará: 53 companies, 0.0 of every 100 active companies there Paraíba: 15 companies, 0.0 of every 100 active companies there Paraná: 92 companies, 0.0 of every 100 active companies there Pernambuco: 63 companies, 0.0 of every 100 active companies there Piauí: 25 companies, 0.0 of every 100 active companies there Rio de Janeiro: 86 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 104 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 169 companies, 0.0 of every 100 active companies there Rondônia: 16 companies, 0.0 of every 100 active companies there Roraima: 0 companies, 0.0 of every 100 active companies there Santa Catarina: 166 companies, 0.0 of every 100 active companies there São Paulo: 245 companies, 0.0 of every 100 active companies there Sergipe: 9 companies, 0.0 of every 100 active companies there Tocantins: 14 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 245
  2. 2 Rio Grande do Sul 169
  3. 3 Santa Catarina 166
  4. 4 Minas Gerais 155
  5. 5 Rio Grande do Norte 104
  6. 6 Paraná 92
  7. 7 Bahia 89
  8. 8 Rio de Janeiro 86
  9. 9 Ceará 69
  10. 10 Mato Grosso 69
See the 26 federative units
  1. 11 Pernambuco 63
  2. 12 Maranhão 57
  3. 13 Pará 53
  4. 14 Goiás 49
  5. 15 Alagoas 39
  6. 16 Espírito Santo 31
  7. 17 Piauí 25
  8. 18 Amazonas 21
  9. 19 Rondônia 16
  10. 20 Paraíba 15
  11. 21 Tocantins 14
  12. 22 Mato Grosso do Sul 13
  13. 23 Acre 9
  14. 24 Sergipe 9
  15. 25 Amapá 7
  16. 26 Distrito Federal 3

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 51
  2. 2 Rio de Janeiro (RJ) 28
  3. 3 Maceió (AL) 17
  4. 4 Fortaleza (CE) 14
  5. 5 Parelhas (RN) 14
  6. 6 São Miguel do Oeste (SC) 13
  7. 7 Teutônia (RS) 13
  8. 8 Recife (PE) 11
  9. 9 Goiânia (GO) 11
  10. 10 Caruaru (PE) 10
See the 29 cities
  1. 11 Rio Branco (AC) 9
  2. 12 Caldas Novas (GO) 9
  3. 13 Teresina (PI) 8
  4. 14 Salvador (BA) 8
  5. 15 Belo Horizonte (MG) 8
  6. 16 Palmitos (SC) 8
  7. 17 Putinga (RS) 8
  8. 18 Jucurutu (RN) 7
  9. 19 São Miguel da Boa Vista (SC) 7
  10. 20 Lajeado (RS) 7
  11. 21 Palmas (TO) 7
  12. 22 Ceará-Mirim (RN) 6
  13. 23 Jardim do Seridó (RN) 6
  14. 24 Pendências (RN) 6
  15. 25 Jaboatão dos Guararapes (PE) 6
  16. 26 Segredo (RS) 6
  17. 27 Curitiba (PR) 6
  18. 28 São Marcos (RS) 6
  19. 29 Campo Grande (MS) 6

What activity 3600-6/01 is

  1. Section E — Água, esgoto, atividades de gestão de resíduos e descontaminação
  2. Division — Captação, tratamento e distribuição de água
  3. Group — Captação, tratamento e distribuição de água
  4. Class — Captação, tratamento e distribuição de água

What it covers

  • A captação de água de chuva, rios, lagos, fontes, do subsolo, etc.
  • O tratamento e purificação da água para fins de abastecimento, tais como: desinfecção, coagulação, floculação, decantação, filtração, correção do pH e fluoretação
  • A armazenagem em reservatórios e a distribuição de água através de uma rede permanente de linhas, tubulações e dutos (instalações de infra-estrutura)
  • A operação de canais de irrigação
  • A dessalinização de água do mar ou águas subterrâneas para a produção de água como principal produto de interesse

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 nesta subclasse.

Typical activities

  • Armazenagem em reservatórios e a distribuição de água através de uma rede permanente de linhas, tubulações e dutos
  • Atividades de exploração de poços artesianos para fins de abastecimento de água potável
  • Captação, tratamento e distribuição de água
  • Captação, tratamento e distribuição de água de chuva para fins de abastecimento
  • Captação, tratamento e distribuição de água de fontes para fins de abastecimento
  • Captação, tratamento e distribuição de água de lagos para fins de abastecimento
  • Captação, tratamento e distribuição de água de rios para fins de abastecimento
  • Captação, tratamento e distribuição de água de subsolo para fins de abastecimento
  • Consumo de água quando executados por empresas de captação, tratamento e/ou distribuição de água, medição de
  • Dessalinização de água do mar ou subterrânea para produção de água potável
  • Operação de canais de irrigação
  • Operação de sistemas para tratamento e distribuição de água, integrada à coleta e tratamento de esgotos
See the other 5 typical activities
  • Serviço de abastecimento de água
  • Serviço de filtragem de água para fins de abastecimento
  • Serviço de suprimento de água público ou privado (exceto irrigação)
  • Serviços de coleta e tratamento de esgoto quando realizados conjuntamente com a captação, tratamento e distribuição de água
  • Tratamento e purificação de água para fins de abastecimento (desinfecção, coagulação, floculação, decantação, filtração, correção do ph e fluoretação)

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 3600-6

captação, tratamento e distribuição de água, by subclass
SubclassActiveOpeningsChange
3600-6/01 Captação, tratamento e distribuição de água · this one1,686108−19.4%
3600-6/02 Distribuição de água por caminhões3,537629+9.2%

Frequently asked questions about CNAE 3600-6/01

How many CNAE 3600-6/01 companies are there in Brazil?

1,686 active companies have CNAE 3600-6/01 as their main activity, according to the Receita Federal's October 2026 publication. It is 631st among the country's activities by companies.

Which activities make up class 3600-6?

Class 3600-6 has 2 subclasses: 3600-6/01; 3600-6/02. 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 245. 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.

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