CNAE 4399-1/05 · Brazil

Perfuração e construção de poços de água

5,395 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: 5,395; 427th of 1,329 activities
Opened in 12 months: 900; +6.9% · 370th by openings
Of every 100 companies in the country: 0.0; do this activity
Openings per 100 active: 17; 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.

AGUA VIVA POCOS ARTESIANOS LTDATapejara (RS)
HIDROTEC PERFURACAO E INSTALACAO DE POCOS LTDAJoão Pessoa (PB)
AGUA AZUL POCOS ARTESIANOS LTDAVideira (SC)
HIDROCON-HIDROGEOLOGOS CONSULTORES LTDASalvador (BA)
ITAPOCOS POCOS ARTESIANOS ITABIRA NASCIMENTO LTDAItabira (MG)
HIDRODEX - ENGENHARIA E PERFURACAO LTDAGarça (SP)
AGROMAQUINAS EMPREENDIMENTOS AGRICOLAS LTDABrumado (BA)
CONSTROLEO LUBRIFICANTES LTDAGália (SP)
MATERIA PERFURACAO DE POCOS LTDAAraçatuba (SP)
SS EMPREENDIMENTOS LTDAImperatriz (MA)
TERRA PERFURACOES LTDAFortaleza (CE)
PERFUGEL - PERFURACOES GEOLOGICAS LTDACuritiba (PR)

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.

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

Federative units with the most companies

1 Minas Gerais 755
2 São Paulo 728
3 Goiás 478
4 Bahia 424
5 Paraná 310
6 Pará 265
7 Mato Grosso 230
8 Santa Catarina 203
9 Rio de Janeiro 191
10 Rio Grande do Sul 190

See the 27 federative units

11 Mato Grosso do Sul 180
12 Ceará 166
13 Maranhão 161
14 Espírito Santo 150
15 Pernambuco 139
16 Tocantins 131
17 Amazonas 109
18 Paraíba 99
19 Rondônia 91
20 Piauí 85
21 Rio Grande do Norte 83
22 Distrito Federal 77
23 Alagoas 50
24 Roraima 31
25 Sergipe 31
26 Amapá 20
27 Acre 17

Cities with the most companies

active companies by head office

See the 30 cities

What activity 4399-1/05 is

Section F — Construção
Division — Serviços especializados para construção
Group — Outros serviços especializados para construção
Class — Serviços especializados para construção não especificados anteriormente

What it covers

A perfuração e construção de poços de água

Typical activities

Manutenção de poços artesianos, exceto limpeza
Perfuração de poços de água, obras de
Poços artesianos, construção de
Poços artesianos, perfuração de
Poços artesianos, reaprofundamento de
Poços artesianos, revestimento de
Poços de água, construção e perfuração de
Poços de água subterrânea, perfuração de
Poços semiartesianos, perfuração de
Poços tubulares, perfuração de

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 4399-1

serviços especializados para construção não especificados anteriormente, by subclass

Subclass	Active	Openings	Change
4399-1/01 Administração de obras	13,567	2,517	+7.3%
4399-1/02 Montagem e desmontagem de andaimes e outras estruturas temporárias	1,305	140	−11.9%
4399-1/03 Obras de alvenaria	614,649	130,023	+10.9%
4399-1/04 Serviços de operação e fornecimento de equipamentos para transporte e elevação de cargas e pessoas para uso em obras	3,268	355	−11.9%
4399-1/05 Perfuração e construção de poços de água · this one	5,395	900	+6.9%
4399-1/99 Serviços especializados para construção não especificados anteriormente	35,465	7,565	+14.5%

Frequently asked questions about CNAE 4399-1/05

How many CNAE 4399-1/05 companies are there in Brazil?

5,395 active companies have CNAE 4399-1/05 as their main activity, according to the Receita Federal's October 2026 publication. It is 427th among the country's activities by companies.

Which activities make up class 4399-1?

Class 4399-1 has 6 subclasses: 4399-1/01; 4399-1/02; 4399-1/03; 4399-1/04; 4399-1/05; 4399-1/99. 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?

Minas Gerais, with 755. 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.