CNAE 4399-1/05 · Rondônia
Perfuração e construção de poços de água in Rondônia
91 active companies are headquartered in Rondônia with this CNAE as their main activity. They represent 1.7% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 5,395
What this list shows
We count each active company once, by its head office in this state 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.
- Companies in Rondônia
- 91
- 1.7% of Brazil's
- Of every 100 companies in Rondônia
- 0.1
- do this activity
- Among Brazil's federative units
- 19th
- by companies in this activity
Active companies in Rondônia
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 4- HIDRO VILHENA POCOS ARTESIANOS LTDAVilhena (RO)
- POCOS ARTESIANOS RONDONIA LTDACacoal (RO)
- MANOS POCOS ARTESIANOS LTDAJi-Paraná (RO)
- HIDRO CAMPOS POCOS ARTESIANOS LTDAVilhena (RO)
- ARROBA AGRONEGOCIOS LTDAAriquemes (RO)
- HM PERFURACAO DE POCOS ARTESIANOS LTDARolim de Moura (RO)
- HIDRORONDONIA LTDACacoal (RO)
- R F ALVES LTDAPorto Velho (RO)
- TATUZAO SERVICOS DE POCOS ARTESIANOS LTDARolim de Moura (RO)
- F & D POCOS ARTESIANOS LTDAMonte Negro (RO)
- RURAL POCOS ARTESIANOS LTDANova Brasilândia D'Oeste (RO)
- W. R. POCOS ARTESIANOS LTDAVilhena (RO)
- A J D PEREIRA LTDACerejeiras (RO)
- AGUA VIVA POCOS ARTESIANOS LTDACandeias do Jamari (RO)
- FL POCOS ARTESIANOS LTDAAlta Floresta D'Oeste (RO)
- ITAITUBA POCOS ARTESIANOS LTDAJaru (RO)
- BARATAO PERFURACAO E MANUTENCAO DE POCOS ARTESIANOS LTDAJi-Paraná (RO)
- MANANCIAL POCOS ARTESIANOS LTDACacoal (RO)
- DF CONSTRUCOES LTDAAriquemes (RO)
- EDGAR ENDLISH DA ROCHA LTDAPorto Velho (RO)
- SAO JOSE POCOS ARTESIANOS LTDAVilhena (RO)
- R W F DE OLIVEIRA POCOS ARTESIANOS LTDASão Francisco do Guaporé (RO)
- HIDRO MINAS POCOS ARTESIANOS LTDAOuro Preto do Oeste (RO)
- SOS MANUTENCAO DE POCOS ARTESIANOS LTDAJi-Paraná (RO)
- SONDA SOLO POCOS ARTESIANOS LTDAPimenta Bueno (RO)
- J L POCOS ARTESIANOS LTDAMonte Negro (RO)
- MVO SOLUCOES EM POCOS ARTESIANOS LTDACacoal (RO)
- OLSEN SERVICOS LTDACacoal (RO)
- HIDROCENTER POCOS ARTESIANOS LTDACacoal (RO)
- CONSORCIO UNIPOCOS RONDONIAVilhena (RO)
List limited to 91 companies, 30 per page. Looking for a specific company? Search by name or CNPJ.
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.
How much the activity weighs
of every 100 active companies, how many do this activity
- Rondônia0.1
- Brazil0.0
In Rondônia, the activity weighs 2.8 times what it does in Brazil.
Rondônia's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Porto Velho 26.4% 24
- 2 Ji-Paraná 9.9% 9
- 3 Ariquemes 9.9% 9
- 4 Cacoal 9.9% 9
- 5 Vilhena 8.8% 8
- 6 Alta Floresta D'Oeste 6.6% 6
- 7 Rolim de Moura 4.4% 4
- 8 Ouro Preto do Oeste 3.3% 3
- 9 São Francisco do Guaporé 3.3% 3
- 10 Monte Negro 3.3% 3
11 more cities
- 11 Jaru 2
- 12 Cerejeiras 2
- 13 Guajará-Mirim 1
- 14 Chupinguaia 1
- 15 Cujubim 1
- 16 Pimenta Bueno 1
- 17 Presidente Médici 1
- 18 Costa Marques 1
- 19 Cabixi 1
- 20 Nova Brasilândia D'Oeste 1
- 21 Candeias do Jamari 1
Class 4399-1 in Rondônia
serviços especializados para construção não especificados anteriormente, by subclass| Subclass | Active |
|---|---|
| 4399-1/01 Administração de obras | 52 |
| 4399-1/02 Montagem e desmontagem de andaimes e outras estruturas temporárias | 6 |
| 4399-1/03 Obras de alvenaria | 4,443 |
| 4399-1/04 Serviços de operação e fornecimento de equipamentos para transporte e elevação de cargas e pessoas para uso em obras | 19 |
| 4399-1/05 Perfuração e construção de poços de água · this one | 91 |
| 4399-1/99 Serviços especializados para construção não especificados anteriormente | 438 |
What activity 4399-1/05 is
- A perfuração e construção de poços de água
Frequently asked questions
How many companies have main CNAE 4399-1/05 in Rondônia?
91 active companies have CNAE 4399-1/05 as their main activity in Rondônia, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.0 in Brazil.
Which of Rondônia's cities has the most companies in this activity?
Porto Velho, with 24, 26.4% of the state's companies in this activity.
Why can this total differ from the companies operating in this state?
This scope counts active companies by their head office and registered main activity. A company may operate in this state through a branch or carry out the activity as a secondary activity and be excluded from the count. The registered address and CNAE do not establish every operating location or service.
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 with this as their main activity, counted by head office in Rondônia.