CNAE 4221-9/04 · Minas Gerais

Construção de estações e redes de telecomunicações in Minas Gerais

133 active companies are headquartered in Minas Gerais with this CNAE as their main activity. They represent 10.1% of Brazil's active companies with the same main activity.

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

The same activity in Brazil 1,316

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 Minas Gerais: 133; 10.1% of Brazil's
Of every 100 companies in Minas Gerais: 0.0; do this activity
Among Brazil's federative units: 2nd; by companies in this activity

Active companies in Minas Gerais

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 5

COMCENTER TELECOM LTDAPatos de Minas (MG)
INOVA SERVICOS, CONSULTORIA EM TELECOMUNICACOES LTDAUberlândia (MG)
VIA SERVICOS DE TELECOM LTDABelo Horizonte (MG)
NET SERVICE TECNOLOGIA LTDANova Lima (MG)
STTE SERVICOS TECNICOS DE TELECOMUNICACOES E EMPREENDIMENTOS LTDABelo Horizonte (MG)
CONECTA TELECOM LTDASanta Vitória (MG)
CONEXSUS EMPREEDIMENTOS E SERVICOS LTDAItaobim (MG)
PERSONAL ENERGIA LTDA.Belo Horizonte (MG)
PM SERVICOS E PROJETOS DE TELECOMUNICACOES LTDAContagem (MG)
3 E 3 SERVICOS TECNICOS LTDABelo Horizonte (MG)
MND REDES SUBTERRANEAS LTDAContagem (MG)
RCR ENGENHARIA LTDAContagem (MG)
ENTECOL - ENGENHARIA E TECNICA DE CONSTRUCOES LTDAContagem (MG)
STA TELECOMUNICACOES E ELETRICIDADE LTDABelo Horizonte (MG)
GARRA-TELECOMUNICACOES E ELETRICIDADE LTDABelo Horizonte (MG)
MAXIMA TELECOMUNICACOES E SERVICOS LTDAIpatinga (MG)
CONECTEL - CONSTRUCOES E CONECCOES TELEFONICAS LIMITADANova Lima (MG)
PROTENG SERVICOS LTDABelo Horizonte (MG)
NTCORP TECNOLOGIA LTDABelo Horizonte (MG)
METALKAF TELECOMUNICACOES E ELETRICIDADE LTDAContagem (MG)
INETSERV SERVICOS E TECNOLOGIA LTDAMontes Claros (MG)
LS TELECOMUNICACOES E SERVICOS LTDAPingo-d'Água (MG)
SOLTEC SOLUCOES EM TECNOLOGIA E COMUNICACAO LTDABelo Horizonte (MG)
NASSAN TELECOMUNICACOES E ELETRICA LTDAContagem (MG)
ALFA SOLUCOES EM TECNOLOGIA LTDAEwbank da Câmara (MG)
TOP COMUNICACAO & SERVICOS LTDABelo Horizonte (MG)
TELMINAS COMERCIO SERVICOS E EMPREENDIMENTOS DE TELECOMUNICACOES LTDABelo Horizonte (MG)
INFORREDE ENGENHARIA E TECNOLOGIA LTDABelo Horizonte (MG)
VPK TELECOMUNICACOES LTDABelo Horizonte (MG)
ITALTEC LTDAContagem (MG)

List limited to 133 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

Minas Gerais0.0
Brazil0.0

In Minas Gerais, the activity weighs what it does in Brazil.

Minas Gerais's cities with the most companies in this activity

active companies and each city's share of the state

1 Belo Horizonte 37.6% 50
2 Contagem 9.0% 12
3 Uberlândia 8.3% 11
4 Nova Lima 3.8% 5
5 Ipatinga 2.3% 3
6 Juiz de Fora 2.3% 3
7 Mariana 2.3% 3
8 Arcos 1.5% 2
9 Betim 1.5% 2
10 Congonhal 1.5% 2

20 more cities

Class 4221-9 in Minas Gerais

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

Subclass	Active
4221-9/01 Construção de barragens e represas para geração de energia elétrica	22
4221-9/02 Construção de estações e redes de distribuição de energia elétrica	271
4221-9/03 Manutenção de redes de distribuição de energia elétrica	149
4221-9/04 Construção de estações e redes de telecomunicações · this one	133
4221-9/05 Manutenção de estações e redes de telecomunicações	160

Close to this: 6190-6/99 · Outras atividades de telecomunicações não especificadas anteriormente, 3,130 companies in Minas Gerais.

What activity 4221-9/04 is

As obras para implantação de serviços de telecomunicações: #- construção de redes de longa e média distância de telecomunicações
A execução de projetos de instalações para estações de telefonia e centrais telefônicas

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4221-9/04 in Minas Gerais?

133 active companies have CNAE 4221-9/04 as their main activity in Minas Gerais, 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 Minas Gerais's cities has the most companies in this activity?

Belo Horizonte, with 50, 37.6% 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 Minas Gerais.