CNAE 4221-9/03 · Brazil

Manutenção de redes de distribuição de energia elétrica

1,180 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.

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

What this list shows

We count each active company in the Brazilian CNPJ registry once, by its head office 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.

Active companies: 1,180; 706th of 1,329 activities
Opened in 12 months: 97; −16.4% · 709th by openings
Of every 100 companies in the country: 0.0; do this activity
Openings per 100 active: 8; in the country: 21

Active companies in this activity

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.

COSAMPA ENERGIA LTDAMaracanaú (CE)
3C SERVICES S A - EM RECUPERACAO JUDICIALSão Gonçalo (RJ)
ELETROMECANICA DO MARANHAO LTDASão Luís (MA)
R. BOSQUE CONSTRUCOES LTDATerezópolis de Goiás (GO)
CYMI O&M LTDA.Rio de Janeiro (RJ)
STN EMPREENDIMENTOS E CONSTRUCOES LTDAAreal (RJ)
RENASCER CONSTRUCOES ELETRICAS LTDA EM RECUPERACAO JUDICIALItapira (SP)
STS - SOCIEDADE DE TERCERIZACAO DE SERVICOS LTDA.Mirassol d'Oeste (MT)
ENERGISA SOLUCOES CONSTRUCOES E SERVICOS EM LINHAS E REDES S.ACataguases (MG)
CGM MANUTENCAO ELETRICA LTDA.Belém (PA)
PSE PROJETOS E SERVICOS DE ENGENHARIA LTDASão Paulo (SP)
SOLARIG BRASIL SERVICOS EM ENERGIA LTDA.Rio de Janeiro (RJ)

Look up companies in this activity (up to 300)

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.

Where the companies are

Weight in each federative unit: of every 100 active companies, how many have this main activity

Federative units with the most companies

1 São Paulo 196
2 Minas Gerais 149
3 Paraná 112
4 Rio Grande do Sul 83
5 Santa Catarina 72
6 Goiás 70
7 Bahia 69
8 Rio de Janeiro 64
9 Ceará 47
10 Espírito Santo 38

See the 26 federative units

11 Mato Grosso 37
12 Pará 33
13 Pernambuco 33
14 Maranhão 31
15 Distrito Federal 18
16 Tocantins 18
17 Rio Grande do Norte 17
18 Mato Grosso do Sul 14
19 Amazonas 13
20 Piauí 13
21 Alagoas 12
22 Rondônia 12
23 Paraíba 11
24 Amapá 4
25 Sergipe 4
26 Roraima 3

Cities with the most companies

active companies by head office

See the 30 cities

What activity 4221-9/03 is

Section F — Construção
Division — Obras de infra-estrutura
Group — Obras de infra-estrutura para energia elétrica, telecomunicações, água, esgoto e transporte por dutos
Class — Obras para geração e distribuição de energia elétrica e para telecomunicações

What it covers

A manutenção de redes de distribuição de energia elétrica, quando executada por empresa não-produtora ou distribuidora de energia elétrica

What it does not cover

A manutenção de redes de eletricidade, quando executada por empresas de produção e distribuição de energia elétrica (grupo 35.1)

Typical activities

Linhas de transmissão de energia elétrica, reparação e manutenção de
Manutenção de redes de energia elétrica
Manutenção de redes elétricas
Manutenção de sistema de produção e distribuição de energia elétrica

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 4221-9

obras para geração e distribuição de energia elétrica e para telecomunicações, by subclass

Subclass	Active	Openings	Change
4221-9/01 Construção de barragens e represas para geração de energia elétrica	202	12	—
4221-9/02 Construção de estações e redes de distribuição de energia elétrica	2,355	137	−9.3%
4221-9/03 Manutenção de redes de distribuição de energia elétrica · this one	1,180	97	−16.4%
4221-9/04 Construção de estações e redes de telecomunicações	1,316	121	−15.4%
4221-9/05 Manutenção de estações e redes de telecomunicações	1,458	196	+3.2%

Frequently asked questions about CNAE 4221-9/03

How many CNAE 4221-9/03 companies are there in Brazil?

1,180 active companies have CNAE 4221-9/03 as their main activity, according to the Receita Federal's October 2026 publication. It is 706th among the country's activities by companies.

Which activities make up class 4221-9?

Class 4221-9 has 5 subclasses: 4221-9/01; 4221-9/02; 4221-9/03; 4221-9/04; 4221-9/05. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.

Which federative unit has the most companies in this activity?

São Paulo, with 196. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.

Does this total include branches and secondary activities?

No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.

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 in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.