Company lists · Data refreshed September 2026

Top 10 Telephone line installers based in Brazil

RevenueBase identified 60 company matches for telephone line installers associated with Brazil as of September 2026 and tracks 9,216 professional contacts across them, including 73 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for telephone line installers associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built
60Companies
9,216Contacts tracked
73Verified emails
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The 10 largest telephone line installers based in Brazil

Ranked by team size
Top 10 of 60 company matches for telephone line installers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRio De Janeiro, BrazilHQ recorded Sep 22, 202610001+8,011 contacts →

Exact match

“A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchJaboticabal, BrazilHQ recorded Sep 22, 20261,001-5,000478 contacts →

Exact match

“B.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchMaringá, BrazilHQ recorded Sep 22, 202651-20044 contacts →

Exact match

“RS Telecomunicaes is a telecommunications company based out of 265 TREVO DE CIANORTE - Parque Industrial, Maringá, Brazil.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchEusébio, BrazilHQ recorded Sep 22, 202651-20043 contacts →

Exact match

“Empresa especializada no atendimento as demandas de serviços em infraestrutura de sistemas de telecomunicação especificamente no setor de telefonia móvel, wireless e redes fixas…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchRondonópolis, BrazilHQ recorded Sep 22, 2026201-50026 contacts →

Exact match

“Interfibras Telecomunicações is a telecommunications company based out of R.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchSalvador, BrazilHQ recorded Sep 22, 202611-507 contacts →

Exact match

“A Instaltec Tecnologia em Instalações foi fundada em 1994 e desde então presta serviço na área de cabeamento estruturado de telecomunicações e instalações elétricas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchCuritiba, BrazilHQ recorded Sep 22, 202651-2004 contacts →

Exact match

“Solução em serviços para telecomunicações Construção de redes e MDU Instalação e manutenção de clientes HFC e GPON Logística reversa de equipamentos”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchBetim, BrazilHQ recorded Sep 22, 202611-503 contacts →

Exact match

“Forte Telecomunicações LTDA - Atuando no serviço de construção de Redes FTTH e prestação de serviços em instalações e reparos de rede fibra-ótica.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchSão Bernardo Do Campo, BrazilHQ recorded Sep 22, 202611-503 contacts →

Exact match

“A Costa & Nunes Indústria e Comércio de Equipamentos Ltda, fundada no ano de 2003 com sede na Cidade de São Bernardo do Campo – SP, atuando com o nome fantasia TECNOMAFER TELECOM…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchCuritiba, BrazilHQ recorded Sep 22, 20261-102 contacts →

Exact match

“Atuamos nas áreas de infraestrutura de tecnologia da informação, com instalações e manutenções de redes estruturadas, redes ópticas, infraestrutura elétrica e monitoramento IP e…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 10 of 60 telephone line installers based in Brazil

See the full list, filter by size, metro and specialty, and access 73 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telephone line installers based in Brazil at a glance

As of Sep 22, 2026
0.8%Verified-email coverage
153.6Average contacts per company
11-50Median size (employees)
11.7%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
15
51-200
11
201-500
3
1,001-5,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 60 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Brazil whose business descriptions match “telephone line installers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 73 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telephone line installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telephone line installers are there based in Brazil?

RevenueBase identified 60 company matches for telephone line installers associated with Brazil as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Serede tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telephone line installers?

Sao Paulo leads with 7 company records, followed by Curitiba (4) and Manaus (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 73 professional contacts with verified work emails tracked across these 60 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.