CNAE 4321-5/00 · Maranhão
Electrical installation and maintenance in Maranhão
3,367 active companies are headquartered in Maranhão with this CNAE as their main activity. They represent 1.0% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 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 Maranhão
- 3,367
- 1.0% of Brazil's
- Of every 100 companies in Maranhão
- 0.9
- do this activity
- Among Brazil's federative units
- 18th
- 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 2 of 10- ENGEL ENGENHARIA LTDAItapecuru Mirim (MA)
- SAFIRA ENGENHARIA SERVICOS E LOCACOES LTDAPaço do Lumiar (MA)
- PRISMA SOLAR COMERCIO E SERVICOS LTDASão Luís (MA)
- N B MANUTENCOES LTDACoroatá (MA)
- EGS ENGENHARIA PROJETOS E MONTAGENS LTDASão Luís (MA)
- CIGNUSS ENGENHARIA E SOLUCOES LTDAAçailândia (MA)
- M S DE CARVALHO SERVICOS INDUSTRIAIS LTDAImperatriz (MA)
- SUNLUZ ENERGIA SOLAR LTDASão Luís (MA)
- AGM ENGENHARIA LTDASão Luís (MA)
- META ENGENHARIA LTDASão Luís (MA)
- SOLAR SOL ENERGIA LTDABarra do Corda (MA)
- L ALMEIDA EMPRESARIAL LTDAVitória do Mearim (MA)
- FLEET SERVICOS & COMERCIO LTDADuque Bacelar (MA)
- S D ALARMES LTDAAçailândia (MA)
- FOTON INSTALACOES COMERCIO E SERVICOS LTDAAçailândia (MA)
- SR ENGENHARIA E SERVICOS LTDASão Luís (MA)
- B2B SERVICOS E CIA LTDAImperatriz (MA)
- INSTRUMENTAL ELETRICA SERVICOS LTDASão Luís (MA)
- R N B NUNES LTDASão Luís (MA)
- LUMENS SOLUCOES EM ENERGIA E CONSTRUCOES LTDACampestre do Maranhão (MA)
- PILLAR CONSTRUTORA E LOCACAO LTDASão João dos Patos (MA)
- VLD GERACAO DISTRIBUIDA LTDASão Luís (MA)
- AMAZONIA ELETROVIAS SCP CLUBE CHARGER IMPERATRIZ SAO LUIS FASE 1Imperatriz (MA)
- AMAZONIA ELETROVIAS SCP CLUBE CHARGER CAROLINA BARAO DE GRAJAU FASE 1Imperatriz (MA)
- R S S EMPREENDIMENTOS LTDACodó (MA)
- S C RAMOS E RAMOS LTDAPaulino Neves (MA)
- BULHAO INFORMATICA LTDAPedreiras (MA)
- LUMINER E SERVICOS LTDASanta Helena (MA)
- TESLA BRASIL LTDASão Luís (MA)
- DIEGO S SANTOS LTDACampestre do Maranhão (MA)
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
- Maranhão0.9
- Brazil1.2
In Maranhão, the activity weighs less than in Brazil.
Maranhão's cities with the most companies in this activity
active companies and each city's share of the state
- 1 São Luís 35.9% 1,210
- 2 Imperatriz 10.8% 363
- 3 São José de Ribamar 5.9% 197
- 4 Balsas 4.8% 163
- 5 Timon 4.2% 142
- 6 Paço do Lumiar 3.4% 115
- 7 Açailândia 2.6% 86
- 8 Caxias 1.9% 65
- 9 Bacabal 1.5% 52
- 10 Santa Inês 1.5% 49
20 more cities
- 11 Barra do Corda 33
- 12 Pinheiro 31
- 13 Presidente Dutra 31
- 14 Chapadinha 28
- 15 Porto Franco 27
- 16 Barreirinhas 25
- 17 Itapecuru Mirim 25
- 18 Estreito 23
- 19 Grajaú 22
- 20 Santa Rita 19
- 21 Codó 18
- 22 Coroatá 18
- 23 Campestre do Maranhão 17
- 24 João Lisboa 17
- 25 Rosário 16
- 26 Pedreiras 15
- 27 São Mateus do Maranhão 15
- 28 Santa Luzia 14
- 29 Raposa 13
- 30 Riachão 13
Class 4321-5 in Maranhão
instalações elétricas, by subclassClose to this: 4322-3/01 · Plumbing, sanitary and gas installations, 257 companies in Maranhão.
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 Maranhão?
3,367 active companies have CNAE 4321-5/00 as their main activity in Maranhão, according to the Receita Federal's October 2026 publication. That is 0.9 of every 100 companies there, against 1.2 in Brazil.
Which of Maranhão's cities has the most companies in this activity?
São Luís, with 1,210, 35.9% 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.