CNAE 4312-6/00 · Brazil
Perfurações e sondagens
1,419 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
- 1,419
- 676th of 1,329 activities
- Opened in 12 months
- 144
- −16.3% · 644th by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 10
- 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.- GEOSOL - GEOLOGIA E SONDAGENS S/AIbirité (MG)
- MASTER PERFURACOES E DESMONTES LTDAJardinópolis (SP)
- REDE ENGENHARIA E SONDAGENS SALagoa Santa (MG)
- GEOSEDNA PERFURACOES ESPECIAIS SALagoa Santa (MG)
- CONTERP SERVICOS TECNICOS LTDACatu (BA)
- DRILLGEO GEOLOGIA E SONDAGENS S/ALauro de Freitas (BA)
- FORACO BRASIL S.A.Crixás (GO)
- LAYNE DO BRASIL SONDAGENS S.A.Rio de Janeiro (RJ)
- SAVASSI SERVICO TECNICO DA AMAZONIA LTDAJi-Paraná (RO)
- EXPLODRILL PERFURACAO E DESMONTE LTDABela Vista de Goiás (GO)
- MAJOR DRILLING DO BRASIL LTDABelo Horizonte (MG)
- GANA GOLD SONDAGENS LTDAItaituba (PA)
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.
- How to look up a CNPJ
Check identifiers, dates and registry fields against official sources.
- What an active CNPJ means
Active status does not show that a company is debt-free, licensed or able to operate.
- How to read partner and administrator records
Understand QSA roles and the limits on ownership and representation information.
Where the companies are
Weight in each federative unit: of every 100 active companies, how many have this main activity
- 0.0
- 0.0
- 0.0
- 0.0
- 0.0
Federative units with the most companies
- 1 São Paulo 446
- 2 Minas Gerais 186
- 3 Paraná 103
- 4 Rio de Janeiro 85
- 5 Santa Catarina 80
- 6 Goiás 69
- 7 Rio Grande do Sul 69
- 8 Espírito Santo 52
- 9 Bahia 50
- 10 Mato Grosso 38
See the 26 federative units
- 11 Pernambuco 38
- 12 Ceará 34
- 13 Pará 30
- 14 Paraíba 21
- 15 Amazonas 15
- 16 Distrito Federal 14
- 17 Maranhão 14
- 18 Rio Grande do Norte 13
- 19 Rondônia 12
- 20 Mato Grosso do Sul 11
- 21 Tocantins 10
- 22 Alagoas 6
- 23 Amapá 5
- 24 Piauí 4
- 25 Sergipe 4
- 26 Roraima 2
Cities with the most companies
active companies by head office
- 1 São Paulo (SP) 209
- 2 Belo Horizonte (MG) 58
- 3 Rio de Janeiro (RJ) 44
- 4 Curitiba (PR) 37
- 5 Goiânia (GO) 23
- 6 Fortaleza (CE) 21
- 7 Recife (PE) 19
- 8 Santo André (SP) 17
- 9 Olinda (PE) 15
- 10 Manaus (AM) 14
See the 30 cities
- 11 Brasília (DF) 14
- 12 Nova Lima (MG) 12
- 13 Lauro de Freitas (BA) 11
- 14 Cuiabá (MT) 11
- 15 São José do Rio Preto (SP) 10
- 16 Belém (PA) 9
- 17 Parauapebas (PA) 9
- 18 Uberaba (MG) 9
- 19 Porto Alegre (RS) 9
- 20 Uberlândia (MG) 8
- 21 Guarulhos (SP) 8
- 22 Natal (RN) 7
- 23 Pombal (PB) 7
- 24 Rio das Ostras (RJ) 7
- 25 Ecoporanga (ES) 7
- 26 Campinas (SP) 7
- 27 Cotia (SP) 7
- 28 Ribeirão Preto (SP) 7
- 29 Sorocaba (SP) 7
- 30 Maringá (PR) 7
What activity 4312-6/00 is
- Section F — Construção
- Division — Serviços especializados para construção
- Group — Demolição e preparação do terreno
- Class — Perfurações e sondagens
What it covers
- As sondagens destinadas à construção
- As perfurações e furos para investigação do solo e núcleo para fins de construção, com propósitos geofísicos, geológicos e similares
What it does not cover
- A exploração de campo de produção de petróleo e gás natural que inclua as investigações geofísicas, geológicas e sísmicas (0600-0/01)Classified under: 0600-0/01 Extração de petróleo e gás natural
- A perfuração de poços para exploração de petróleo e gás natural, incluídas as investigações geofísicas, geológicas e sísmicas, quando realizada pela própria empresa (0600-0/01), ou quando realizada por terceiros (0910-6/00)Classified under: 0600-0/01 Extração de petróleo e gás natural 0910-6/00 Atividades de apoio à extração de petróleo e gás natural
- A execução de fundações para edifícios e outras obras de engenharia civil (4391-6/00)Classified under: 4391-6/00 Obras de fundações
- A perfuração e abertura de poços de água (4399-1/05)Classified under: 4399-1/05 Perfuração e construção de poços de água
- As atividades de prospecção geológica (7119-7/02)Classified under: 7119-7/02 Atividades de estudos geológicos
Typical activities
- Execução de sondagem (sondagens) para construção
- Investigação de solo para construção
- Perfuração para prospecção (construção), exceto para exploração de petróleo
- Perfuração (perfurações) para exploração mineral
- Perfurações para testes em edificações (construção)
- Perfurações para testes em minas (construção)
- Serviços de sondagens e perfurações
- Sondagem a percussão
- Sondagem a trado
- Sondagem por escavação de poço
- Sondagem por escavação de trincheira
- Sondagem rotativa
See the other 2 typical activities
- Sondagem (sondagens) destinadas a construção civil
- Teste de solo (construção)
Frequently asked questions about CNAE 4312-6/00
How many CNAE 4312-6/00 companies are there in Brazil?
1,419 active companies have CNAE 4312-6/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 676th among the country's activities by companies.
Which federative unit has the most companies in this activity?
São Paulo, with 446. 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.