EN
Appearance

To remember this theme on future pages, allow saved preferences. Cookie preferences

Could not save. Check that your browser allows cookies and try again.

MenuClose

Preferences

LanguageEnglish
AppearanceSystem
Appearance

To remember this theme on future pages, allow saved preferences. Cookie preferences

Could not save. Check that your browser allows cookies and try again.

CNAE 3900-5/00 · Brazil

Descontaminação e outros serviços de gestão de resíduos

208 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
208
1,033rd of 1,329 activities
Opened in 12 months
12
1,033rd 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 208)

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: 3 companies, 0.0 of every 100 active companies there Amapá: 2 companies, 0.0 of every 100 active companies there Amazonas: 5 companies, 0.0 of every 100 active companies there Bahia: 9 companies, 0.0 of every 100 active companies there Ceará: 7 companies, 0.0 of every 100 active companies there Distrito Federal: 2 companies, 0.0 of every 100 active companies there Espírito Santo: 6 companies, 0.0 of every 100 active companies there Goiás: 8 companies, 0.0 of every 100 active companies there Maranhão: 6 companies, 0.0 of every 100 active companies there Mato Grosso: 11 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 2 companies, 0.0 of every 100 active companies there Minas Gerais: 14 companies, 0.0 of every 100 active companies there Pará: 6 companies, 0.0 of every 100 active companies there Paraíba: 3 companies, 0.0 of every 100 active companies there Paraná: 21 companies, 0.0 of every 100 active companies there Pernambuco: 6 companies, 0.0 of every 100 active companies there Piauí: 0 companies, 0.0 of every 100 active companies there Rio de Janeiro: 16 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 3 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 7 companies, 0.0 of every 100 active companies there Rondônia: 2 companies, 0.0 of every 100 active companies there Roraima: 0 companies, 0.0 of every 100 active companies there Santa Catarina: 12 companies, 0.0 of every 100 active companies there São Paulo: 52 companies, 0.0 of every 100 active companies there Sergipe: 0 companies, 0.0 of every 100 active companies there Tocantins: 2 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 52
  2. 2 Paraná 21
  3. 3 Rio de Janeiro 16
  4. 4 Minas Gerais 14
  5. 5 Santa Catarina 12
  6. 6 Mato Grosso 11
  7. 7 Bahia 9
  8. 8 Goiás 8
  9. 9 Ceará 7
  10. 10 Rio Grande do Sul 7
See the 23 federative units
  1. 11 Espírito Santo 6
  2. 12 Maranhão 6
  3. 13 Pará 6
  4. 14 Pernambuco 6
  5. 15 Amazonas 5
  6. 16 Alagoas 3
  7. 17 Paraíba 3
  8. 18 Rio Grande do Norte 3
  9. 19 Amapá 2
  10. 20 Distrito Federal 2
  11. 21 Mato Grosso do Sul 2
  12. 22 Rondônia 2
  13. 23 Tocantins 2

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 19
  2. 2 Fortaleza (CE) 6
  3. 3 Rio de Janeiro (RJ) 6
  4. 4 Manaus (AM) 5
  5. 5 Rondonópolis (MT) 5
  6. 6 Curitiba (PR) 4
  7. 7 Cuiabá (MT) 4
  8. 8 Centro Novo do Maranhão (MA) 3
  9. 9 Belém (PA) 3
  10. 10 Recife (PE) 3
See the 29 cities
  1. 11 Belo Horizonte (MG) 3
  2. 12 Campinas (SP) 3
  3. 13 Paranaguá (PR) 3
  4. 14 Laguna (SC) 3
  5. 15 Fazenda Rio Grande (PR) 3
  6. 16 Porto Velho (RO) 2
  7. 17 Macapá (AP) 2
  8. 18 São Luís (MA) 2
  9. 19 Maceió (AL) 2
  10. 20 Simões Filho (BA) 2
  11. 21 Itapeva (MG) 2
  12. 22 Uberlândia (MG) 2
  13. 23 Niterói (RJ) 2
  14. 24 Mairiporã (SP) 2
  15. 25 Pradópolis (SP) 2
  16. 26 Santo André (SP) 2
  17. 27 Santos (SP) 2
  18. 28 Sorocaba (SP) 2
  19. 29 Araucária (PR) 2

What activity 3900-5/00 is

  1. Section E — Água, esgoto, atividades de gestão de resíduos e descontaminação
  2. Division — Descontaminação e outros serviços de gestão de resíduos
  3. Group — Descontaminação e outros serviços de gestão de resíduos
  4. Class — Descontaminação e outros serviços de gestão de resíduos

What it covers

  • A descontaminação através de métodos mecânicos, químicos ou biológicos, em solos e águas subterrâneas contaminadas
  • A descontaminação de usinas e plantas industriais, inclusive nucleares
  • A descontaminação e a limpeza de águas superficiais pela coleta de poluentes ou a aplicação de produtos químicos – p. ex. por contaminação acidental
  • A limpeza de vazamentos de óleo no solo, em águas superficiais, no oceano e mares, inclusive mares costeiros
  • A neutralização de amianto, tinta e outros materiais perigosos
  • As atividades especializadas no controle de outros tipos de contaminação

What it does not cover

Typical activities

  • Limpeza de solo contaminado
  • Solo através de combustão, pirólise ou incineração, descontaminação do
  • Solo através de dessorteação em reator, descontaminação do
  • Solo através de landfarming, cometabolismo ou desnitrificação, descontaminação do
  • Solo através de lavagem ou extração, descontaminação do
  • Solo através de processos de vitrificação ou eletrocinéticos, descontaminação do
  • Solo através de reatores biológicos, descontaminação do
  • Solo ou água através de processos físicos, químicos, térmicos, biológicos, isolamento ou confinamento, descontaminação do

Source: IBGE, CNAE 2.3 and its explanatory notes

Frequently asked questions about CNAE 3900-5/00

How many CNAE 3900-5/00 companies are there in Brazil?

208 active companies have CNAE 3900-5/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 1,033rd among the country's activities by companies.

Which federative unit has the most companies in this activity?

São Paulo, with 52. 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.