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CNAE 2521-7/00 · Brazil

Fabricação de tanques, reservatórios metálicos e caldeiras para aquecimento central

649 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
649
830th of 1,329 activities
Opened in 12 months
38
+22.6% · 877th 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: 1 company, 0.0 of every 100 active companies there Alagoas: 8 companies, 0.0 of every 100 active companies there Amapá: 0 companies, 0.0 of every 100 active companies there Amazonas: 5 companies, 0.0 of every 100 active companies there Bahia: 13 companies, 0.0 of every 100 active companies there Ceará: 4 companies, 0.0 of every 100 active companies there Distrito Federal: 0 companies, 0.0 of every 100 active companies there Espírito Santo: 5 companies, 0.0 of every 100 active companies there Goiás: 38 companies, 0.0 of every 100 active companies there Maranhão: 5 companies, 0.0 of every 100 active companies there Mato Grosso: 24 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 14 companies, 0.0 of every 100 active companies there Minas Gerais: 63 companies, 0.0 of every 100 active companies there Pará: 8 companies, 0.0 of every 100 active companies there Paraíba: 3 companies, 0.0 of every 100 active companies there Paraná: 72 companies, 0.0 of every 100 active companies there Pernambuco: 22 companies, 0.0 of every 100 active companies there Piauí: 1 company, 0.0 of every 100 active companies there Rio de Janeiro: 19 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 4 companies, 0.0 of every 100 active companies there Rio Grande do Sul: 76 companies, 0.0 of every 100 active companies there Rondônia: 7 companies, 0.0 of every 100 active companies there Roraima: 0 companies, 0.0 of every 100 active companies there Santa Catarina: 34 companies, 0.0 of every 100 active companies there São Paulo: 207 companies, 0.0 of every 100 active companies there Sergipe: 2 companies, 0.0 of every 100 active companies there Tocantins: 10 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 207
  2. 2 Rio Grande do Sul 76
  3. 3 Paraná 72
  4. 4 Minas Gerais 63
  5. 5 Goiás 38
  6. 6 Santa Catarina 34
  7. 7 Mato Grosso 24
  8. 8 Pernambuco 22
  9. 9 Rio de Janeiro 19
  10. 10 Mato Grosso do Sul 14
See the 24 federative units
  1. 11 Bahia 13
  2. 12 Tocantins 10
  3. 13 Alagoas 8
  4. 14 Pará 8
  5. 15 Rondônia 7
  6. 16 Amazonas 5
  7. 17 Espírito Santo 5
  8. 18 Maranhão 5
  9. 19 Ceará 4
  10. 20 Rio Grande do Norte 4
  11. 21 Paraíba 3
  12. 22 Sergipe 2
  13. 23 Acre 1
  14. 24 Piauí 1

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 23
  2. 2 Maringá (PR) 12
  3. 3 Aparecida de Goiânia (GO) 11
  4. 4 Piracicaba (SP) 10
  5. 5 Uberaba (MG) 9
  6. 6 Vista Alegre do Alto (SP) 8
  7. 7 Bento Gonçalves (RS) 8
  8. 8 Garibaldi (RS) 8
  9. 9 Cuiabá (MT) 8
  10. 10 Patrocínio (MG) 7
See the 30 cities
  1. 11 Cedral (SP) 7
  2. 12 Guarulhos (SP) 7
  3. 13 Campinas (SP) 6
  4. 14 Toledo (PR) 6
  5. 15 Porto Alegre (RS) 6
  6. 16 Manaus (AM) 5
  7. 17 Mauá (SP) 5
  8. 18 Colombo (PR) 5
  9. 19 Lapa (PR) 5
  10. 20 Caxias do Sul (RS) 5
  11. 21 Várzea Grande (MT) 5
  12. 22 Cabo de Santo Agostinho (PE) 4
  13. 23 Uberlândia (MG) 4
  14. 24 Nova Santa Rita (RS) 4
  15. 25 Duque de Caxias (RJ) 4
  16. 26 Diadema (SP) 4
  17. 27 Jaú (SP) 4
  18. 28 Mogi Guaçu (SP) 4
  19. 29 Olímpia (SP) 4
  20. 30 Paulínia (SP) 4

What activity 2521-7/00 is

  1. Section C — Indústrias de transformação
  2. Division — Fabricação de produtos de metal, exceto máquinas e equipamentos
  3. Group — Fabricação de tanques, reservatórios metálicos e caldeiras
  4. Class — Fabricação de tanques, reservatórios metálicos e caldeiras para aquecimento central

What it covers

  • A fabricação de tanques e reservatórios para combustíveis, lubrificantes, gás comprimido e gás liqüefeito, etc.
  • A fabricação de tanques e reservatórios cilíndricos, de teto fixo, flutuantes, etc., para armazenamento e processamento de materiais
  • A fabricação de recipientes metálicos para gases comprimidos e liqüefeitos, de qualquer capacidade
  • A fabricação de caldeiras geradoras de vapor para aquecimento central
  • A fabricação cilindros para extintores de incêndio e semelhantes
  • A fabricação de peças e acessórios de tanques, reservatórios e caldeiras para aquecimento central
  • A instalação de tanques, reservatórios e caldeiras para aquecimento central quando executada pela unidade fabricante

What it does not cover

Typical activities

  • Fabricação de botijões para gás
  • Fabricação de bujões, garrafas e cilindros metálicos para embalar gases
  • Fabricação de bujões para gás
  • Fabricação de caldeiras geradoras de vapor para aquecimento central
  • Fabricação de cilindros de ferro para embalar gases
  • Fabricação de cilindros de ferro para extintores de incêndio
  • Fabricação de peças e acessórios para caldeiras geradoras de vapor para aquecimento central
  • Fabricação de peças e acessórios para tanques e reservatórios
  • Fabricação de recipientes de qualquer capacidade para transporte e armazenagem de gases comprimidos e liquefeitos
  • Fabricação de reservatórios metálicos para água potável
  • Fabricação de tanques de ferro e aço, n.e. - inclusive reservatórios para combustíveis e lubrificantes
  • Fabricação de tanques e reservatórios - inclusive de aço inoxidável, cilíndricos
See the other 4 typical activities
  • Fabricação de tanques e reservatórios - inclusive de aço inoxidável, de tetos fixos
  • Fabricação de tanques e reservatórios - inclusive de aço inoxidável, de tetos flutuantes
  • Fabricação de tanques e reservatórios - inclusive de aço inoxidável, esféricos
  • Fabricação de tubos e garrafas metálicos para transporte de gases comprimidos e liquefeitos

Source: IBGE, CNAE 2.3 and its explanatory notes

Frequently asked questions about CNAE 2521-7/00

How many CNAE 2521-7/00 companies are there in Brazil?

649 active companies have CNAE 2521-7/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 830th among the country's activities by companies.

Which federative unit has the most companies in this activity?

São Paulo, with 207. 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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