Company lists · Data refreshed November 2026

Top 25 Phone system support providers based in Brazil

RevenueBase identified 241 company matches for phone system support providers associated with Brazil as of November 2026 and tracks 1,536 professional contacts across them, including 136 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for phone system support providers 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
241Companies
1,536Contacts tracked
136Verified emails
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The 25 largest phone system support providers based in Brazil

Ranked by team size
Top 25 of 241 company matches for phone system support providers 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 matchOsasco, BrazilHQ recorded Nov 6, 2026201-500286 contacts →

Exact match

“A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202611-5024 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBlumenau, BrazilHQ recorded Nov 6, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Pentagono Telecom é uma empresa com mais de 12 anos de experiência em soluções de telecom, especializada em serviços de Telefonia VoIP, cloud para telemarketing, call centers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondrina, BrazilHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Somos uma empresa de informática empresarial com mais de 30 anos no mercado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchRio Do Sul, BrazilHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Há mais de 35 anos conectando empresas e pessoas com tecnologia de qualidade!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchXanxerê, BrazilHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Com expertise de mais de 25 anos no mercado, a System UP oferece soluções em tecnologia, suporte técnico, produtos e consultoria em informática para empresas e pessoa física.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBarueri, BrazilHQ recorded Nov 6, 20261-107 contacts →

Exact match

“A Server Tech Informática foi fundada em 2010, tendo como principal objetivo fornecer tecnologia à pequenas, médias e grandes empresas, para alavancar suas vendas e reduzir seus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-106 contacts →

Exact match

“A Hatron é uma empresa especializada na gestão de todo o departamento de TI para empresas de pequeno e médio porte, fundada há 16 anos para possibilitar a melhor utilização da…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAruja, BrazilHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Rvr telecom | provedor de internet | telefonia voip | pabx ip”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOlinda, BrazilHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Com mais de 27 anos de mercado, a Leader Informática está alicerçada na experiência, confiança e credibilidade praticadas e desenvolvidas em todos esses anos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact 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
20Exact matchAmericana, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Somos uma empresa de suporte técnico especializada em atendimento empresarial, com serviços de Backup em Nuvem, Monitoramento de Servidores e Computadores, Gerenciamento de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNova Petrópolis, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Fundada em 1997, a TECNOHAUS INFORMÁTICA é uma empresa de assistência técnica especializada em prestação de serviços e venda de equipamentos e suprimentos, abrangendo usuários dos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchGravataí, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Sistema de Call Center - Telemarketing / SAC Telefonia IP - PABX Integração Telefonia e Sistemas Consultoria em Telecom”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Atuamos nos seguintes segmentos : Terceirização de Suporte Técnico, Atendimento VIP (Residenciais), Construção de Websites e ecommerce, Instalação e configuração de sistemas de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-2003 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 241 phone system support providers based in Brazil

See the full list, filter by size, metro and specialty, and access 136 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone system support providers based in Brazil at a glance

As of Nov 6, 2026
8.9%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
19.9%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
64
51-200
10
201-500
1
501-1,000
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 241 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 support providers” 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 136 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.

Phone system support providers 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 “phone system support providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many phone system support providers are there based in Brazil?

RevenueBase identified 241 company matches for phone system support providers 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?

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

Which city has the most phone system support providers?

Sao Paulo leads with 48 company records, followed by Rio De Janeiro (10) and Curitiba (9).

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 136 professional contacts with verified work emails tracked across these 241 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.