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CNAE 4329-1/04 · Maranhão

Montagem e instalação de sistemas e equipamentos de iluminação e sinalização em vias públicas, portos e aeroportos in Maranhão

120 active companies are headquartered in Maranhão with this CNAE as their main activity. They represent 3.0% of Brazil's active companies with the same main activity.

Source: Receita Federal, CNPJ Open Data · October 2026 publication

The same activity in Brazil 3,980

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 Maranhão
120
3.0% of Brazil's
Of every 100 companies in Maranhão
0.0
do this activity
Among Brazil's federative units
10th
by companies in this activity

Active companies in Maranhão

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 4

List limited to 120 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. Maranhão0.0
  2. Brazil0.0

In Maranhão, the activity weighs 2.3 times what it does in Brazil.

Maranhão's cities with the most companies in this activity

active companies and each city's share of the state

  1. 1 São Luís 21.7% 26
  2. 2 Bacabal 9.2% 11
  3. 3 Caxias 5.8% 7
  4. 4 São José de Ribamar 5.8% 7
  5. 5 Imperatriz 3.3% 4
  6. 6 Itapecuru Mirim 3.3% 4
  7. 7 Jatobá 1.7% 2
  8. 8 Peritoró 1.7% 2
  9. 9 Trizidela do Vale 1.7% 2
  10. 10 Chapadinha 1.7% 2
20 more cities
  1. 11 Lago da Pedra 2
  2. 12 Pastos Bons 2
  3. 13 Rosário 2
  4. 14 Timon 2
  5. 15 Santa Inês 2
  6. 16 Açailândia 2
  7. 17 Água Doce do Maranhão 1
  8. 18 Araguanã 1
  9. 19 Bacabeira 1
  10. 20 Buriticupu 1
  11. 21 Campestre do Maranhão 1
  12. 22 Centro Novo do Maranhão 1
  13. 23 Maracaçumé 1
  14. 24 Maranhãozinho 1
  15. 25 Pedro do Rosário 1
  16. 26 Raposa 1
  17. 27 São João do Soter 1
  18. 28 São José dos Basílios 1
  19. 29 São Pedro da Água Branca 1
  20. 30 Senador Alexandre Costa 1

Class 4329-1 in Maranhão

obras de instalações em construções não especificadas anteriormente, by subclass
SubclassActive
4329-1/01 Instalação de painéis publicitários115
4329-1/02 Instalação de equipamentos para orientação à navegação marítima fluvial e lacustre11
4329-1/03 Instalação, manutenção e reparação de elevadores, escadas e esteiras rolantes49
4329-1/04 Montagem e instalação de sistemas e equipamentos de iluminação e sinalização em vias públicas, portos e aeroportos · this one120
4329-1/05 Tratamentos térmicos, acústicos ou de vibração22
4329-1/99 Outras obras de instalações em construções não especificadas anteriormente16

Close to this: 3299-0/04 · Fabricação de painéis e letreiros luminosos, 75 companies in Maranhão.

What activity 4329-1/04 is

  • A montagem ou instalação de sistemas de iluminação e sinalização em vias públicas, rodovias, ferrovias, portos e aeroportos
  • A iluminação urbana e semáforos
  • A iluminação de pistas de decolagem

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4329-1/04 in Maranhão?

120 active companies have CNAE 4329-1/04 as their main activity in Maranhão, according to the Receita Federal's October 2026 publication. That is 0.0 of every 100 companies there, against 0.0 in Brazil.

Which of Maranhão's cities has the most companies in this activity?

São Luís, with 26, 21.7% 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 Maranhão.