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CNAE 4321-5/00 · Santa Catarina

Instalação e manutenção elétrica in Santa Catarina

22,742 active companies are headquartered in Santa Catarina with this CNAE as their main activity. They represent 6.9% 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

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 Santa Catarina
22,742
6.9% of Brazil's
Of every 100 companies in Santa Catarina
1.5
do this activity
Among Brazil's federative units
6th
by companies in this activity

Active companies in Santa Catarina

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 10

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 much the activity weighs

of every 100 active companies, how many do this activity

  1. Santa Catarina1.5
  2. Brazil1.2

In Santa Catarina, the activity weighs 1.3 times 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. 1 Joinville 9.3% 2,126
  2. 2 Blumenau 6.8% 1,549
  3. 3 Florianópolis 6.3% 1,435
  4. 4 Chapecó 3.9% 883
  5. 5 Itajaí 3.6% 816
  6. 6 São José 3.6% 816
  7. 7 Jaraguá do Sul 3.5% 799
  8. 8 Palhoça 3.5% 793
  9. 9 Criciúma 2.7% 608
  10. 10 Balneário Camboriú 2.3% 525
20 more cities
  1. 11 Brusque 495
  2. 12 Itapema 481
  3. 13 Camboriú 439
  4. 14 Biguaçu 375
  5. 15 Indaial 338
  6. 16 Lages 337
  7. 17 Tubarão 317
  8. 18 Navegantes 309
  9. 19 Rio do Sul 270
  10. 20 Tijucas 237
  11. 21 Concórdia 209
  12. 22 Timbó 203
  13. 23 Gaspar 201
  14. 24 São Bento do Sul 197
  15. 25 Araranguá 182
  16. 26 Imbituba 169
  17. 27 Videira 167
  18. 28 Caçador 165
  19. 29 São Miguel do Oeste 165
  20. 30 Barra Velha 164

Class 4321-5 in Santa Catarina

instalações elétricas, by subclass

Close to this: 4322-3/01 · Instalações hidráulicas, sanitárias e de gás, 2,835 companies in Santa Catarina.

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

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4321-5/00 in Santa Catarina?

22,742 active companies have CNAE 4321-5/00 as their main activity in Santa Catarina, according to the Receita Federal's October 2026 publication. That is 1.5 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 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 Santa Catarina.