CNAE 4322-3/01 · Rio Grande do Norte
Instalações hidráulicas, sanitárias e de gás in Rio Grande do Norte
240 active companies are headquartered in Rio Grande do Norte with this CNAE as their main activity. They represent 0.6% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 38,838
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 Rio Grande do Norte
- 240
- 0.6% of Brazil's
- Of every 100 companies in Rio Grande do Norte
- 0.1
- do this activity
- Among Brazil's federative units
- 19th
- by companies in this activity
Active companies in Rio Grande do Norte
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 8- INDSYSTEM SERVICOS E MEDICOES LTDASão Gonçalo do Amarante (RN)
- RUI PEDRO LINS ALVES DE NOVAIS ENGENHARIA LTDAMossoró (RN)
- OXIAIR COMERCIO DE GASES E SERVICOS LTDAParnamirim (RN)
- D & E SERVICOS HIDRAULICOS LTDANatal (RN)
- ALPHA SOLAR ENERGIA LTDAAssú (RN)
- MEDGAS COMERCIO E SERVICOS DE GASES LTDA.Parnamirim (RN)
- R L SERVICOS E INSTALACOES PREDIAIS LTDANatal (RN)
- Gep Manutencoes e Instalacoes LtdaExtremoz (RN)
- REDIFIQUE CONSTRUCOES E SERVICOS LTDANatal (RN)
- J KENYA SANTOS MARANHAO LTDAParnamirim (RN)
- RGF CONSTRUCOES E SERVICOS LTDANatal (RN)
- WATERSOL SOLUCOES EM TRATAMENTO DE AGUA LTDANatal (RN)
- M4 SERVICOS HIDRAULICOS LTDASanta Cruz (RN)
- AGS ENGENHARIA E CONSULTORIA EMPRESARIAL LTDANatal (RN)
- ECOSISTEM SERVICOS E PROJETOS HIDRAULICOS LTDAMossoró (RN)
- DUNAS PROJETOS E INSTALACOES DE GAS LTDANatal (RN)
- C. L. EMPREENDIMENTOS E CONSTRUCOES LTDAIpanguaçu (RN)
- E C S LOPES SANTOS SERVICOS E INSTALACOES LTDANatal (RN)
- HYDRO TOP LTDANatal (RN)
- B&D SOLUCOES ENERGETICAS LTDANatal (RN)
- LEITE E SOUSA EMPREENDIMENTOS LTDANatal (RN)
- F M DE SOUZA INSTALACOES & CONSTRUCOES LTDANatal (RN)
- PFA SERVICE LTDAParnamirim (RN)
- DOIS TEMPOS MANUTENCAO E SERVICOS INDUSTRIAIS LTDANatal (RN)
- J E D DE LIRA LTDAMacaíba (RN)
- D. M. INSTALACOES E MANUTENCAO DE CLIMATIZACAO , GAS E COZINHA INDUSTRIAL LTDANatal (RN)
- C S SOLUCOES TERMICAS LTDANatal (RN)
- ATHOS INSTALACOES ELETRICAS LTDANatal (RN)
- CONFORT ENERGY LTDANatal (RN)
- INSTALLE COMERCIO E SERVICOS LTDANatal (RN)
List limited to 240 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
- Rio Grande do Norte0.1
- Brazil0.1
In Rio Grande do Norte, the activity weighs less than in Brazil.
Rio Grande do Norte's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Natal 39.6% 95
- 2 Parnamirim 18.8% 45
- 3 Mossoró 10.0% 24
- 4 São Gonçalo do Amarante 5.0% 12
- 5 Extremoz 3.8% 9
- 6 Ceará-Mirim 3.3% 8
- 7 São José de Mipibu 2.1% 5
- 8 Macaíba 1.7% 4
- 9 São Miguel 1.2% 3
- 10 Ipanguaçu 0.8% 2
20 more cities
- 11 Monte Alegre 2
- 12 Passagem 2
- 13 Santana do Matos 2
- 14 Touros 2
- 15 Rio do Fogo 1
- 16 Tibau 1
- 17 São Miguel do Gostoso 1
- 18 Acari 1
- 19 Assú 1
- 20 Apodi 1
- 21 Bom Jesus 1
- 22 Brejinho 1
- 23 Canguaretama 1
- 24 Carnaúba dos Dantas 1
- 25 Currais Novos 1
- 26 Felipe Guerra 1
- 27 Goianinha 1
- 28 Guamaré 1
- 29 Jardim do Seridó 1
- 30 Jucurutu 1
Class 4322-3 in Rio Grande do Norte
instalações hidráulicas, de sistemas de ventilação e refrigeração, by subclass| Subclass | Active |
|---|---|
| 4322-3/01 Instalações hidráulicas, sanitárias e de gás · this one | 240 |
| 4322-3/02 Instalação e manutenção de sistemas centrais de ar condicionado, de ventilação e refrigeração | 1,538 |
| 4322-3/03 Instalações de sistema de prevenção contra incêndio | 92 |
Close to this: 4321-5/00 · Instalação e manutenção elétrica, 3,839 companies in Rio Grande do Norte.
What activity 4322-3/01 is
- A instalação, alteração, manutenção e reparo em todos os tipos de construções de: #- sistemas de aquecimento (coletor solar, gás e óleo), exceto elétricos #- equipamentos hidráulicos e sanitários #- ligações de gás #- tubulações de vapor
- A instalação, alteração, manutenção e reparo de rede para distribuição de gases e fluídos diversos (p. ex., oxigênio nos hospitais)
Frequently asked questions
How many companies have main CNAE 4322-3/01 in Rio Grande do Norte?
240 active companies have CNAE 4322-3/01 as their main activity in Rio Grande do Norte, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.1 in Brazil.
Which of Rio Grande do Norte's cities has the most companies in this activity?
Natal, with 95, 39.6% 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 Rio Grande do Norte.