CNAE 4221-9/04 · São Paulo
Construction of telecommunication stations and networks 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 8 of 10- ADON SOLUCOES EM REDES LTDAItapevi (SP)
- SERVICE COMPANY TELECOM LTDASão Paulo (SP)
- RAMOS SERVICOS DE TELECOMUNICACOES LTDABatatais (SP)
- VINEDU ENGENHARIA LTDASão Paulo (SP)
- EDUARDO FRANCISCO DA SILVA LTDAOsasco (SP)
- R.B. TELECOM LTDARio Grande da Serra (SP)
- A M S - TELECOM E SEGURANCA LTDASão Paulo (SP)
- LS BRAZ SERVICOS DE TELECOMUNICACOES LTDACampinas (SP)
- M O LIMA JUNIOR LTDAAguaí (SP)
- ICARO CABLING NETWORKS LTDACarapicuíba (SP)
- D. G. SOLUTIONS ITAPEVA LTDAItapeva (SP)
- LIGHT&CON PAULISTA LTDAMarília (SP)
- CAMASERO - SERVICOS E EXECUCAO DE PROJETOS LTDACapão Bonito (SP)
- D.E.S COMERCIO E INSTALACAO DE EQUIPAMENTOS ELETRICOS E ELETRONICOS LTDAFranca (SP)
- MIRANDA GRAMACHO TELECOMUNICACOES LTDASuzano (SP)
- F2S TELECOM CONSTRUCAO DE REDE LTDASão Caetano do Sul (SP)
- WIRELEX TELECOMUNICACOES LTDASão Paulo (SP)
- FERNANDES & FERNANDES INSTALACOES LTDAArealva (SP)
- TELEFORT EMPREENDIMENTOS SOLUCOES EM SERVICOS LTDASão Paulo (SP)
- TELESINAL CONECT COMUNICACOES LTDASão Paulo (SP)
- NOGUEIRA - C E I SERVICOS E COMERCIO DE TELEINFORMATICA LTDASão Paulo (SP)
- FYBER NET SERVICOS LTDASão Paulo (SP)
- RYCO TELECOMUNICACOES LTDASão José dos Campos (SP)
- MR RUALONGA - INFORMATICA, TECNOLOGIA E SUPRIMENTOS LTDAGuarulhos (SP)
- SINAL TELECOMUNICACOES LTDA.Taboão da Serra (SP)
- SSJ TELECOM - SOLUCOES EM TELECOMUNICACOES LTDACotia (SP)
- RRS TELECOM BRASIL SERVICOS DE INSTALACAO DE ANTENAS LTDASão Paulo (SP)
- PROJECTTUS TELECOM LTDACampinas (SP)
- MARCELO DAVID DE OLIVEIRA SERVICOS LTDASão Paulo (SP)
- NEW LINK SERVICOS EM TELECOMUNICACAO LTDASão Paulo (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 Construction of dams and reservoirs for electric power generation | 31 |
| 4221-9/02 Construction of electric power stations and distribution networks | 261 |
| 4221-9/03 Maintenance of electric power distribution networks | 196 |
| 4221-9/04 Construction of telecommunication stations and networks · this one | 379 |
| 4221-9/05 Maintenance of telecommunication stations and networks | 481 |
Close to this: 6190-6/99 · Other telecommunications activities not elsewhere classified, 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.