Company lists · Data refreshed November 2026

Top 24 Phone system installers based in Brazil

RevenueBase identified 93 company matches for phone system installers associated with Brazil as of November 2026 and tracks 502 professional contacts across them, including 91 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for phone system 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 November 6, 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 Nov 6, 2026 How this list was built
93Companies
502Contacts tracked
91Verified emails
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The 24 largest phone system installers based in Brazil

Ranked by team size
Top 24 of 93 company matches for phone system installers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchSao Paulo, BrazilHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“O Grupo Union Telecom é referência em telecomunicações, oferecendo aos clientes e parceiros 20 anos de experiência, com profissionais capacitados, certificados e experientes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPetrópolis, BrazilHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“A tecnologia que aparece para o usuário depende de muita coisa que permanece invisível.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchVarginha, BrazilHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Desde 1990, a STEL Tecnologia tem sido referência em comunicação corporativa e infraestrutura de redes no Sul de Minas, unindo tradição, inovação e excelência técnica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchJoinville, BrazilHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Fundada em 1989 na cidade de Joinville-SC com o nome Sigmafone, a Wonit é uma empresa de Telecom e TI genuinamente brasileira que iniciou suas atividades com foco na revenda e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGuarulhos, BrazilHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“A RFTecnologia é uma empresa idealizada para oferecer soluções de TI e Telecomunicações para empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSão José Dos Campos, BrazilHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Provedor de soluções de telecomunicações e TI para pequenas, médias e grandes empresas.* Soluções de Telefonia IP, Comunicações Unificadas (UC), Software`s de Call Center, IVR…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Há mais de 25 anos a Phsul é um provedor de soluções em comunicação empresarial para pequenas, médias e grandes organizações, nos setores público e privado, oferecendo avançadas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVeranopolis, BrazilHQ recorded Nov 6, 202611-507 contacts →

Exact match

“A Smartel é uma empresa de comunicação completa, especialista em desenvolver projetos especiais para pequenas, médias e grandes empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Somos especializados em soluções de comunicação para empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-506 contacts →

Exact match

“A Adtech Telecom é uma empresa integradora de soluções de comunicação de Voz e Dados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPalhoça, BrazilHQ recorded Nov 6, 202611-506 contacts →

Exact match

“A Digital Vox é uma empresa especializada em soluções de comunicação empresarial com foco em telefonia VoIP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCaxias Do Sul, BrazilHQ recorded Nov 6, 202611-505 contacts →

Exact match

“A Tel Master Tecnologia iniciou as atividades em 01 de julho de com o objetivo de suprir a necessidade de mão de obra especializada em comunicação de voz para pequenas, médias e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVitória, BrazilHQ recorded Nov 6, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUberlandia, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSorocaba, BrazilHQ recorded Nov 6, 20261-103 contacts →

Exact match

“A WFG Soluctions é uma empresa de Serviços de Soluções em Telefonia VoIP (Voz Sobre IP), que atende os mais diversos clientes Empresas e Operadoras, tanto em suporte quanto em…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMaringa, BrazilHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Digital Sul Equipamentos Para Telecomunicacao is a retail company based out of Av Juscelino Kubistchek De Oliveira, 840, Maringa, Paraná, Brazil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-102 contacts →

Exact match

“A D.lextel Telecomunicações é uma provedora de soluções de comunicação, especializada em projetos personalizados de PABX Virtual & Telefonia VOIP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGuarulhos, BrazilHQ recorded Nov 6, 20261-102 contacts →

Exact match

“A IntegraVoIP é uma empresa de tecnologia sediada em Guarulhos-SP, focada em soluções de TI e Telecom para PMEs (pequenas e médias empresas).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Formada por profissionais com mais de 27 anos de experiência nas áreas de telefonia, computação e sistemas, a IPCOM oferece serviços, soluções e equipamentos, consolidando seu…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNiterói, BrazilHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Empresa integradora de sistemas de informação e de redes de comunicação de dados e voz a Datavoice Telecom, sediada no Rio de Janeiro surge no mercado com um conceito moderno…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-501 contacts →

Exact match

“A Propus é uma empresa de serviços focada em integrar a Tecnologia da Informação e Comunicação às estratégias de negócios das organizações.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Empresa prestadora de serviços na área de TI e Telecomunicações, fundada no ano de 2005 na cidade de Saquarema e posteriormente transferida para a Cidade Maravilhosa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 93 phone system installers based in Brazil

See the full list, filter by size, metro and specialty, and access 91 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone system installers based in Brazil at a glance

As of Nov 6, 2026
18.1%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
21.5%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
39
51-200
4

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 93 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 “phone system 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 91 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 November 6, 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 “phone system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many phone system installers are there based in Brazil?

RevenueBase identified 93 company matches for phone system installers associated with Brazil as of November 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?

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

Which city has the most phone system installers?

Sao Paulo leads with 20 company records, followed by Rio De Janeiro (5) and Belo Horizonte (4).

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 91 professional contacts with verified work emails tracked across these 93 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 November 6, 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.