CNAE 4221-9/04 · São Paulo
Construção de estações e redes de telecomunicações in São Paulo
379 active companies are headquartered in São Paulo with this CNAE as their main activity. They represent 28.8% 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 São Paulo
- 379
- 28.8% of Brazil's
- Of every 100 companies in São Paulo
- 0.0
- do this activity
- Among Brazil's federative units
- 1st
- by companies in this activity
Active companies in São Paulo
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 4 of 10- EXP CONNECT TELECOMUNICACOES LTDACajuru (SP)
- FTTX CONNECT LTDACajuru (SP)
- SISTELCO TELECOM LTDASão Bernardo do Campo (SP)
- WEP TECNOLOGIA E ASSISTENCIA TECNICA LTDA.Bragança Paulista (SP)
- ADMINISTRADORA DE SERVICOS LIDER LTDASão Paulo (SP)
- GOLDWEB BARRETOS SERVICOS DE TELECOMUNICACOES LTDABarretos (SP)
- PROJTELL SERVICOS DE TELECOMUNICACOES LTDASão Paulo (SP)
- BARRANET SOLUCOES EM TELECOMUNICACOES LTDAIndaiatuba (SP)
- DELSERV SERVICOS EM TELECOMUNICACOES LTDASão Paulo (SP)
- ELITEC TELECOM LTDAMauá (SP)
- SPIRIT TELECOMUNICACOES LTDASão Paulo (SP)
- CR CONSTRUTEC TELECOMUNICACOES LTDACampinas (SP)
- FERREIRA CONSTRUCOES, INSTALACOES E TELECOMUNICACOES LTDACarapicuíba (SP)
- CSJ SERVICOS EM TELECOMUNICACOES LTDAGuarulhos (SP)
- BRC TELECOMUNICACOES LTDABoituva (SP)
- M. A. S. ENGENHARIA E CONSULTORIA LTDANova Granada (SP)
- MODULO SERVICOS DE EQUIPAMENTOS LTDASantos (SP)
- MMAGALHAES TECNOLOGIA LTDAOsasco (SP)
- J. R. CONSTRUCAO EM TELECOMUNICACOES LTDAMogi das Cruzes (SP)
- J&L SOLUCOES EM TELECOMUNICACOES LTDASão Paulo (SP)
- MOVE TELECOM SERVICOS E COMERCIO DE EQUIPAMENTOS LTDASão Paulo (SP)
- REAS TELECOMUNUICACOES LTDARibeirão Preto (SP)
- AVANTI- RCS EMPREENDIMENTOS E PARTICIPACOES LTDABarueri (SP)
- FEC INSTALACOES DE REDES E ELETRICA LTDASão Paulo (SP)
- CAPATEL TELECOMUNICACOES LTDAAmericana (SP)
- CRISTEL TELECOM LTDAJandira (SP)
- AJ TELECOM LTDAOsasco (SP)
- MEGA TRADE ENGENHARIA UNIPESSOAL LTDAMogi das Cruzes (SP)
- WEDAS ENGENHARIA DE TELECOMUNICACOES LTDASão Paulo (SP)
- SETLINK TELECOM LTDASão José dos Campos (SP)
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
- São Paulo0.0
- Brazil0.0
In São Paulo, the activity weighs what it does in Brazil.
São Paulo's cities with the most companies in this activity
active companies and each city's share of the state
- 1 São Paulo 35.6% 135
- 2 Campinas 6.9% 26
- 3 Osasco 3.4% 13
- 4 São José dos Campos 3.4% 13
- 5 Guarulhos 2.9% 11
- 6 Ribeirão Preto 2.9% 11
- 7 Santo André 1.8% 7
- 8 Itaquaquecetuba 1.6% 6
- 9 Cotia 1.3% 5
- 10 Poá 1.3% 5
20 more cities
- 11 Sumaré 5
- 12 Americana 4
- 13 Barueri 4
- 14 Bauru 4
- 15 Carapicuíba 4
- 16 Embu das Artes 4
- 17 Jundiaí 4
- 18 Mauá 4
- 19 Nova Granada 4
- 20 São Bernardo do Campo 4
- 21 Araçatuba 3
- 22 Bragança Paulista 3
- 23 Itapevi 3
- 24 Mogi das Cruzes 3
- 25 Piracicaba 3
- 26 Santana de Parnaíba 3
- 27 São José do Rio Preto 3
- 28 Sorocaba 3
- 29 Suzano 3
- 30 Taboão da Serra 3
Class 4221-9 in São Paulo
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 | 31 |
| 4221-9/02 Construção de estações e redes de distribuição de energia elétrica | 261 |
| 4221-9/03 Manutenção de redes de distribuição de energia elétrica | 196 |
| 4221-9/04 Construção de estações e redes de telecomunicações · this one | 379 |
| 4221-9/05 Manutenção de estações e redes de telecomunicações | 481 |
Close to this: 6190-6/99 · Outras atividades de telecomunicações não especificadas anteriormente, 11,466 companies in São Paulo.
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
Frequently asked questions
How many companies have main CNAE 4221-9/04 in São Paulo?
379 active companies have CNAE 4221-9/04 as their main activity in São Paulo, 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 São Paulo's cities has the most companies in this activity?
São Paulo, with 135, 35.6% 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 São Paulo.