Company lists · Data refreshed September 2026

Top 25 Enterprise voice solutions companies based in Brazil

Name: Enterprise voice solutions companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 405 companies tracked

RevenueBase identified 405 enterprise voice solutions companies headquartered in Brazil as of September 2026 and tracks 6,787 professional contacts across them, including 952 with verified work emails and 75 with mobile numbers. Sao Paulo is the largest hub.

This list covers enterprise voice solutions companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 2, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

405Companies

6,787Contacts tracked

952Verified emails

75Mobile numbers

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The 25 largest enterprise voice solutions companies based in Brazil

Ranked by team size

Top 25 of 405 enterprise voice solutions companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise voice solutions companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Unifique	Indirect evidence	Timbo, Brazil	1,001-5,000	1,812 contacts →
	Indirect evidence “Somos uma empresa de telecomunicações com 28 anos de atuação.” Source: RevenueBase Database · checked Sep 2, 2026
2	IK	Partial evidence	Rio De Janeiro, Brazil	201-500	277 contacts →
	Partial evidence “A IK Solution dispõe de diversas soluções inovadoras para seu negócio sair na frente.” Source: RevenueBase Database · checked Sep 2, 2026
3	A5 Solutions	Partial evidence	Sao Paulo, Brazil	201-500	241 contacts →
	Partial evidence “Sobre a A5 Solutions Integradora de soluções líder no segmento de Contact Centers, Comunicações Unificadas e Redes Convergentes, a A5 Solutions atua no mercado há 10 anos.” Source: RevenueBase Database · checked Sep 2, 2026
4	Telium Networks	Indirect evidence	Porto Alegre, Brazil	201-500	232 contacts →
	Indirect evidence “A Telium, criada em 2004 para atender exclusivamente o mercado B2B, atende os segmentos de Telecom e IDC com infraestrutura de padrão internacional, totalmente adequada e…” Source: RevenueBase Database · checked Sep 2, 2026
5	Método Telecom	Indirect evidence	Belo Horizonte, Brazil	51-200	218 contacts →
	Indirect evidence “Há 33 anos, o Grupo Método oferece soluções personalizadas nas áreas de Comunicação empresarial e Segurança eletrônica, com foco na utilização de tecnologias inteligentes e…” Source: RevenueBase Database · checked Sep 2, 2026
6	KHOMP	Partial evidence	Florianopolis, Brazil	201-500	209 contacts →
	Partial evidence “Khomp is a Brazilian company, based in Santa Catarina, which provides leading edge technology for the development of convergence solutions between computer and telephony, in the…” Source: RevenueBase Database · checked Sep 2, 2026
7	a.telecom	Indirect evidence	Sao Paulo, Brazil	51-200	139 contacts →
	Indirect evidence “A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.” Source: RevenueBase Database · checked Sep 2, 2026
8	Phonoway	Indirect evidence	Sao Paulo, Brazil	201-500	135 contacts →
	Indirect evidence “A PHONOWAY oferece soluções em tecnologia para Voz, Dados, Software, Serviços Gerenciados e Segurança Eletrônica, que integra uma equipe de Pré-Vendas e Engenharia preparada, que…” Source: RevenueBase Database · checked Sep 2, 2026
9	Olitel Brasil S A	Indirect evidence	Sao Paulo, Brazil	51-200	71 contacts →
	Indirect evidence “Olitel é uma integradora de soluções que desenvolve projetos de TI para pequenas, médias e grandes empresas.” Source: RevenueBase Database · checked Sep 2, 2026
10	Agil Telecom	Indirect evidence	Sao Paulo Sp, Brazil	11-50	59 contacts →
	Indirect evidence “Na Agil Telecom, trabalhamos para simplificar a comunicação das empresas.” Source: RevenueBase Database · checked Sep 2, 2026
11	Quality Technology	Indirect evidence	Sao Paulo, Brazil	51-200	54 contacts →
	Indirect evidence “A Quality Telecom é uma empresa voltada à área de integração para soluções ligadas a telecomunicações e tecnologia da Informação que desenvolve projetos para pequenas, médias e…” Source: RevenueBase Database · checked Sep 2, 2026
12	Grupo Union Telecom	Indirect evidence	Sao Paulo, Brazil	51-200	45 contacts →
	Indirect evidence “O Grupo Union Telecom é referência em telecomunicações, oferecendo aos clientes e parceiros 20 anos de experiência, com profissionais capacitados, certificados e experientes.” Source: RevenueBase Database · checked Sep 2, 2026
13	Redt Telecom	Partial evidence	Petropolis, Brazil	51-200	41 contacts →
	Partial evidence “RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Source: RevenueBase Database · checked Sep 2, 2026
14	Utech Tecnologia	Indirect evidence	Florianopolis, Brazil	11-50	41 contacts →
	Indirect evidence “We develop state-of-the-art technology for corporate telephony and security.” Source: RevenueBase Database · checked Sep 2, 2026
15	Facilita Telecom	Indirect evidence	Uba, Brazil	11-50	38 contacts →
	Indirect evidence “A Facilita Telecom é uma empresa especialista em facilitar a comunicação das empresas com soluções inovadoras de telecom que minimizam custos e proporcionam comodidade, otimizando…” Source: RevenueBase Database · checked Sep 2, 2026
16	Alhambrait BR	Partial evidence	Sao Paulo, Brazil	201-500	37 contacts →
	Partial evidence “With offices in North and South America, and across Europe, Alhambra offers a global presence with localized solutions, support, and expertise.” Source: RevenueBase Database · checked Sep 2, 2026
17	BR Conecta	Indirect evidence	Boituva, Brazil	51-200	36 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 2, 2026
18	Tellfree Brasil Telefonia IP S.A	Indirect evidence	Sao Paulo, Brazil	51-200	32 contacts →
	Indirect evidence “A Tellfree é provedora de soluções de comunicações para o mercado corporativo.” Source: RevenueBase Database · checked Sep 2, 2026
19	ZAFEX	Indirect evidence	Sao Mateus, Brazil	51-200	31 contacts →
	Indirect evidence “A Zafex é referência em telecomunicações e inovação tecnológica, consolidando-se como líder em Telefonia e Internet na região de São Mateus e Guriri, além de oferecer Telefonia…” Source: RevenueBase Database · checked Sep 2, 2026
20	COMM	Indirect evidence	Sao Paulo, Brazil	11-50	30 contacts →
	Indirect evidence “Tecnologia \| Transformação Digital \| Comunicação Unificada Voz/Texto \| Omnichannel \| Discador Automático \| CRM \| Automatizações \| Gravação Digital \| Speech Analytics \| Arquitetura…” Source: RevenueBase Database · checked Sep 2, 2026
21	Fale Paco	Indirect evidence	Sao Paulo, Brazil	51-200	28 contacts →
	Indirect evidence “A Fale Paco entrega para seus clientes uma experiência única de qualidade, inovação e economia.” Source: RevenueBase Database · checked Sep 2, 2026
22	Newscon	Indirect evidence	Rio De Janeiro, Brazil	51-200	27 contacts →
	Indirect evidence “Atuamos no mercado de Telecom com experiência de mais de 20 anos no setor, oferecemos soluções completas em voz, dados e imagem atendendo as necessidades de pequenas á grandes…” Source: RevenueBase Database · checked Sep 2, 2026
23	Base Telco	Indirect evidence	Sao Paulo, Brazil	51-200	26 contacts →
	Indirect evidence “Tradicionalmente, as empresas adquiriram e implantaram sua própria infra-estrutura de comunicações, no entanto, a economia mudou em favor de um modelo de provedor de serviços.” Source: RevenueBase Database · checked Sep 2, 2026
24	VDS Tecnologia	Indirect evidence	Belo Horizonte, Brazil	11-50	23 contacts →
	Indirect evidence “Há mais de 20 anos, a VDS atua no mercado com soluções de UC (Comunicações Unificadas), Contact Center IP, SBC (Session Border Controller), Voz sobre IP com o máximo de…” Source: RevenueBase Database · checked Sep 2, 2026
25	Mundo Telecom	Indirect evidence	Belo Horizonte, Brazil	51-200	23 contacts →
	Indirect evidence “A Mundo Telecom é uma Integradora e Operadora de Telecomunicações fundada em 2005, que iniciou suas operações prestando serviços de consultoria, projetos, implantação e manutenção…” Source: RevenueBase Database · checked Sep 2, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise voice solutions companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise voice solutions companies.
Partial evidence: Its own public description names part of enterprise voice solutions companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise voice solutions companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 405 enterprise voice solutions companies based in Brazil

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Enterprise voice solutions companies based in Brazil at a glance

As of Sep 2, 2026

14.0%Verified-email coverage

1.1%Mobile-number coverage

16.8Average contacts per company

11-50Median size (employees)

27.4%Largest-city concentration · Sao Paulo

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

170

11-50

180

51-200

201-500

1,001-5,000

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise voice solutions companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “enterprise voice solutions companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise voice solutions companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among enterprise voice solutions companies, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 952 across the full list. 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 2, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise voice solutions companies by metro

Enterprise voice solutions companies in Sao Paulo111

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise voice solutions companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise voice solutions companies are there based in Brazil?

RevenueBase identified 405 enterprise voice solutions companies headquartered in Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Unifique, headquartered in Timbo, tops this list with the largest team on record.

Which city has the most enterprise voice solutions companies?

Sao Paulo leads with 111 headquartered companies, followed by Rio De Janeiro (21) and Curitiba (19).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 952 verified decision-maker contacts tracked across these 405 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 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 Smart Search, 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.