CNAE 4221-9/05 · São Paulo
Maintenance of telecommunication stations and networks in São Paulo
481 active companies are headquartered in São Paulo with this CNAE as their main activity. They represent 33.0% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 1,458
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
- 481
- 33.0% 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 6 of 10- MR TELECON SERVICOS EM TELECOMUNICACOES LTDABarueri (SP)
- V ORTEGA & SOUZA TELECOMUNICACOES LTDASão Paulo (SP)
- JJ TELECOMUNICACOES LTDASão Paulo (SP)
- SOLUCAO COMERCIAL E TELECOMUNICACOES LTDASão Paulo (SP)
- DP SERVICOS EM TELECOMUNICACOES LTDASanto André (SP)
- AWTELECON INSTALACOES LTDARio Grande da Serra (SP)
- FTR TELECOMUNICAO E SERVICOS LTDAMongaguá (SP)
- WEBX TELECOM LTDACajuru (SP)
- SCN SERVICOS AGREGADOS LTDABarueri (SP)
- ROFERTEL TECNOLOGIA EM TELECOMUNICACOES LTDAItapevi (SP)
- AVOL SERVICOS E CONSULTORIA LTDAMogi das Cruzes (SP)
- AG SOUZA TELECOMUNICACOES LTDASão Paulo (SP)
- DCF TELECOM INSTALACOES DE REDES LTDASão Paulo (SP)
- TCI TELECOM INSTALACOES DE REDES LTDASão Paulo (SP)
- RF INFRAESTRUTURA E INTERNET LTDAItaquaquecetuba (SP)
- CAP TELECOM COSMOPOLIS LTDACosmópolis (SP)
- TECNOESTE INSTALACOES LTDAPresidente Prudente (SP)
- A L P NEVES MANUTENCAO EM REDES LTDASão Paulo (SP)
- BORA F&M TECNOLOGIA E MANUTENCAO LTDAPraia Grande (SP)
- TAF TELECOMUNICACOES LTDAPiratininga (SP)
- TECHYCELL SOLUCOES E TECNOLOGIA LTDASão Paulo (SP)
- LOCATEL SOLUCOES E TELECOM LTDASão José do Rio Preto (SP)
- E J DA SILVA INSTALACOES E LANCAMENTOS LTDACajuru (SP)
- DOMINIOZ TECNOLOGIA E PRESTACAO DE SERVICOS DE TELEFONIA LTDAPindamonhangaba (SP)
- MAD SERVICOS DE TELECOMUNICACOES LTDACunha (SP)
- RGB SOLUCOES TECNOLOGICAS LTDAOsasco (SP)
- TELESET - SERVICOS EM TELECOMUNICACOES LTDAFranca (SP)
- SERTE SERVICOS DE INSTALACAO E MANUTENCAO DE CABOS TELEFONICOS LTDACampinas (SP)
- PRIME PRESTACAO DE SERVICOS DE MANUTENCAO E INSTALACAO DE INFRAESTRUTURA LTDAPindamonhangaba (SP)
- R FRANCA DO NASCIMENTO TELECOMUNICACOES LTDACotia (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 40.3% 194
- 2 Campinas 3.1% 15
- 3 Osasco 3.1% 15
- 4 São José dos Campos 2.7% 13
- 5 Guarulhos 2.5% 12
- 6 São Bernardo do Campo 2.5% 12
- 7 Sorocaba 2.3% 11
- 8 Bauru 1.7% 8
- 9 São Caetano do Sul 1.7% 8
- 10 Ribeirão Preto 1.5% 7
20 more cities
- 11 Santo André 7
- 12 Barueri 6
- 13 Mauá 6
- 14 Cajuru 5
- 15 Itaquaquecetuba 5
- 16 Paulínia 5
- 17 Sumaré 5
- 18 Suzano 5
- 19 Hortolândia 4
- 20 Araçatuba 4
- 21 Mogi das Cruzes 4
- 22 Praia Grande 4
- 23 Santana de Parnaíba 4
- 24 Araraquara 3
- 25 Atibaia 3
- 26 Cotia 3
- 27 Ferraz de Vasconcelos 3
- 28 Itapevi 3
- 29 Jaboticabal 3
- 30 Limeira 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 | 379 |
| 4221-9/05 Maintenance of telecommunication stations and networks · this one | 481 |
Close to this: 9512-6/00 · Repair and maintenance of communication equipment, 16,176 companies in São Paulo.
What activity 4221-9/05 is
- A manutenção de estações e redes de longa e média distância de telecomunicações
Frequently asked questions
How many companies have main CNAE 4221-9/05 in São Paulo?
481 active companies have CNAE 4221-9/05 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 194, 40.3% 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.