Company lists · Data refreshed November 2026

Top 25 Network voice services based in Brazil

RevenueBase identified 139 company matches for network voice services associated with Brazil as of November 2026 and tracks 1,432 professional contacts across them, including 249 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for network voice services 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
139Companies
1,432Contacts tracked
249Verified emails
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The 25 largest network voice services based in Brazil

Ranked by team size
Top 25 of 139 company matches for network voice services 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 matchBrasília, BrazilHQ recorded Nov 6, 202651-200151 contacts →

Exact match

“A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Conectividade, tecnologia e inovação Seja para contratar serviços voltados para internet, voz, conectividade ou datacenter, temos a estrutura necessária para desenvolver e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202611-5071 contacts →

Exact match

“Na Agil Telecom, trabalhamos para simplificar a comunicação das empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCuritiba, BrazilHQ recorded Nov 6, 2026201-50049 contacts →

Exact match

“With offices in North and South America, and across Europe, Alhambra offers a global presence with localized solutions, support, and expertise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchJuiz De Fora, BrazilHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“A VIRTUAL TELECOM é uma empresa de telecomunicações fundada no ano de e licenciada pela ANATEL para operar o Serviço de Comunicação Multimídia (SCM) em âmbito nacional e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“A Voitel atua há mais de 20 anos no mercado e é pioneira em Telefonia IP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBoituva, BrazilHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“BR Conecta started its activities in 2005 by bringing the VoIP telephony service to the interior of São Paulo, based in the city of Boituva.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“A Fale Paco entrega para seus clientes uma experiência única de qualidade, inovação e economia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSanto Anastácio, BrazilHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“A Phonevox Group é uma empresa de destaque no setor de telecomunicações, oferecendo uma ampla gama de produtos e soluções para melhorar o atendimento e a comunicação dos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“A Tellfree é provedora de soluções de comunicações para o mercado corporativo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRecife, BrazilHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Há duas décadas, a Base Telco sustenta a infraestrutura crítica e a evolução da comunicação corporativa de líderes de mercado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCanoas, BrazilHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“A Pontual Telecom é uma empresa consolidada em soluções de telecomunicações, especializada em telefonia e internet para o mercado corporativo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Com mais de 20 anos de atuação, a Flexus oferece em seu portfólio diversos serviços em telecomunicações: telefonia fixa digital, PBX cloud, virtualização, licenciamento Microsoft…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact 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
16Exact 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
17Exact 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
18Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Summit Networks is a provider of software and services that enable voice providers to deploy high performance and scalable voice Next Generation Intelligent Network over their IP…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“A WORK SYSTEM TECHNOLOGY é uma empresa de Tecnologia da Informação e Comunicação (TIC) com foco no fornecimento de produtos e serviços para redes de comunicação de Voz e Dados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchBotelhos, BrazilHQ recorded Nov 6, 20261-108 contacts →

Exact match

“A Easytec Brasil é uma empresa de tecnologia que atua no mercado de tecnologia, transformando a telefonia das empresas em uma experiencia inovadora.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Otimi is a VOIP company based in Brazil in the city of São Paulo that serves wholesale customers from all over the world.”

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

Showing 25 of 139 network voice services based in Brazil

See the full list, filter by size, metro and specialty, and access 249 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Network voice services based in Brazil at a glance

As of Nov 6, 2026
17.4%Verified-email coverage
10.3Average contacts per company
11-50Median size (employees)
29.5%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
57
51-200
16
201-500
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 139 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 “network voice services” 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 249 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.

Network voice services by metro

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 “network voice services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many network voice services are there based in Brazil?

RevenueBase identified 139 company matches for network voice services 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?

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

Which city has the most network voice services?

Sao Paulo leads with 41 company records, followed by Curitiba (6) and Porto Alegre (6).

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 249 professional contacts with verified work emails tracked across these 139 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.