CNAE 4321-5/00 · Itajaí (SC)
Instalação e manutenção elétrica in Itajaí (SC)
816 active companies are headquartered in Itajaí (SC) with this CNAE as their main activity. They represent 0.2% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 328,370 · Santa Catarina 22,742
What this list shows
We count each active company once, by its head office in the city 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 Itajaí (SC)
- 816
- 0.2% of Brazil's
- Of every 100 companies in Itajaí (SC)
- 1.2
- do this activity
- Among Santa Catarina's cities
- 5th
- by companies in this activity
Active companies in Itajaí (SC)
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 10- WR TWLEFOMUNICACAO & FOTOVOTAICA LTDAItajaí (SC)
- ATM ENERGIA LTDAItajaí (SC)
- H-TRADE COMERCIAL IMPORTADORA LTDAItajaí (SC)
- COMERCIAL ELETRICA DE SANTA CATARINA LTDAItajaí (SC)
- J&E ALBRICH ELETRICIDADE LTDAItajaí (SC)
- SOMA SOLUCOES ELETRICAS E PREVENTIVAS LTDAItajaí (SC)
- ENERGY CITY LTDAItajaí (SC)
- SC PREVENCAO LTDAItajaí (SC)
- ELETRIZZA CONVERSOES E DESENVOLVIMENTO LTDAItajaí (SC)
- ARF ENGENHARIA LTDAItajaí (SC)
- RGC SISTEMAS INTEGRADOS LTDAItajaí (SC)
- INSTALADORA PASIANI LTDAItajaí (SC)
- ADSERV SERVICOS ESPECIALIZADOS LTDAItajaí (SC)
- JJ ALBRICH LTDAItajaí (SC)
- BRAVA SISTEMAS DE SEGURANCA LTDAItajaí (SC)
- S3E SERVICOS DE MANUTENCAO ELETRICA LTDAItajaí (SC)
- INSTALADORA E DISTRIBUIDORA PASIANI LTDAItajaí (SC)
- ESS SOLUCOES TECNOLOGICAS LTDAItajaí (SC)
- SOLARIS SOLARTECH LTDAItajaí (SC)
- PROTEON TECNOLOGIA LTDAItajaí (SC)
- GIACON SOLUCOES ELETRICAS E CLIMATIZACAO LTDAItajaí (SC)
- DR MANUTENCOES LTDAItajaí (SC)
- PIH INSTALACOES E MANUTENCOES LTDAItajaí (SC)
- EVOSEG MONITORAMENTO ELETRONICO LTDAItajaí (SC)
- ELETRO COMERCIAL MONTESC LTDAItajaí (SC)
- ESTRELA DOURADA INSTALACAO ELETRICA LTDAItajaí (SC)
- CECONI AUTOMACAO LTDAItajaí (SC)
- THIAGO GONCALVES DE MENEZES LTDAItajaí (SC)
- TRONNO COMERCIO E SERVICOS ELETRICOS LTDAItajaí (SC)
- CASTRO INSTALACOES E CONSTRUCOES LTDAItajaí (SC)
List limited to 300 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
- Itajaí (SC)1.2
- Santa Catarina1.5
- Brazil1.2
In Itajaí (SC), the activity weighs what it does in Brazil.
Santa Catarina's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Joinville 9.3% 2,126
- 2 Blumenau 6.8% 1,549
- 3 Florianópolis 6.3% 1,435
- 4 Chapecó 3.9% 883
- 5 Itajaí 3.6% 816
- 6 São José 3.6% 816
- 7 Jaraguá do Sul 3.5% 799
- 8 Palhoça 3.5% 793
- 9 Criciúma 2.7% 608
- 10 Balneário Camboriú 2.3% 525
20 more cities
- 11 Brusque 495
- 12 Itapema 481
- 13 Camboriú 439
- 14 Biguaçu 375
- 15 Indaial 338
- 16 Lages 337
- 17 Tubarão 317
- 18 Navegantes 309
- 19 Rio do Sul 270
- 20 Tijucas 237
- 21 Concórdia 209
- 22 Timbó 203
- 23 Gaspar 201
- 24 São Bento do Sul 197
- 25 Araranguá 182
- 26 Imbituba 169
- 27 Videira 167
- 28 Caçador 165
- 29 São Miguel do Oeste 165
- 30 Barra Velha 164
Class 4321-5 in Itajaí (SC)
instalações elétricas, by subclassClose to this: 4322-3/01 · Instalações hidráulicas, sanitárias e de gás, 110 companies in Itajaí (SC).
What activity 4321-5/00 is
- A instalação, alteração, manutenção e reparo em todos os tipos de construções de: #- sistemas de eletricidade (cabos de qualquer tensão, fiação, materiais elétricos, etc.) #- cabos para instalações telefônicas e de comunicações #- cabos para redes de informática e televisão a cabo, inclusive por fibra óptica #- antenas coletivas e parabólicas #- pára-raios #- sistemas de iluminação #- sistemas de alarme contra incêndio #- sistemas de alarme contra roubo #- sistemas de controle eletrônico e automação predial
- A instalação de equipamentos elétricos para aquecimento
Frequently asked questions
How many companies have main CNAE 4321-5/00 in Itajaí (SC)?
816 active companies have CNAE 4321-5/00 as their main activity in Itajaí (SC), according to the Receita Federal's October 2026 publication. That is 1.2 of every 100 companies there, against 1.2 in Brazil.
Which of Santa Catarina's cities has the most companies in this activity?
Joinville, with 2,126, 9.3% of the state's companies in this activity.
Why can this total differ from the companies operating in the city?
This scope counts active companies by their head office and registered main activity. A company may operate in the city 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 Itajaí (SC).