Company lists · Data refreshed September 2026

Top 25 Voip consulting firms based in Brazil

Name: Voip consulting firms based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 186 companies tracked

RevenueBase identified 186 voip consulting firms headquartered in Brazil as of September 2026 and tracks 1,016 professional contacts across them, including 137 with verified work emails. Sao Paulo is the largest hub.

This list covers voip consulting firms 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 29, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

186Companies

1,016Contacts tracked

137Verified emails

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The 25 largest voip consulting firms based in Brazil

Ranked by team size

Top 25 of 186 voip consulting firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to voip consulting firms: 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	Grupo Union Telecom	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	51-200	44 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 29, 2026
2	Voitel Soluções DE Comunicação	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “A Voitel atua há mais de 20 anos no mercado e é pioneira em Telefonia IP.” Source: RevenueBase Database · checked Sep 29, 2026
3	BR Conecta	Partial evidence	Boituva, BrazilHQ checked Sep 29, 2026	51-200	36 contacts →
	Partial 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 29, 2026
4	Theocom Parceiro Vivo Empresas	Indirect evidence	Campinas, BrazilHQ checked Sep 29, 2026	11-50	26 contacts →
	Indirect evidence “A THEOCOM é uma consultoria especializada em vendas de telefonia empresarial e soluções completas em comunicação para micro, pequenas e médias empresas.” Source: RevenueBase Database · checked Sep 29, 2026
5	Mundo Telecom	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	22 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 29, 2026
6	Nery Consultoria	Indirect evidence	Juiz De Fora, BrazilHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “A Nery Consultoria é uma empresa do ramo de consultoria em telefonia móvel, telefonia fixa e TI em parceria com a Vivo.” Source: RevenueBase Database · checked Sep 29, 2026
7	ARC Telecom	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Há 28 anos ajudando empresas a melhorar suas comunicações Criamos a ARC Telecom em 1995 inicialmente com o foco de ofertar serviços e soluções customizadas em telecomunicações…” Source: RevenueBase Database · checked Sep 29, 2026
8	RED Soluções Digitais	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “A RED Soluções Digitais é a sua consultoria em soluções digitais de Telefonia em nuvem e Customer Experience.” Source: RevenueBase Database · checked Sep 29, 2026
9	Agotec	Partial evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “A Agotec é especializada em T.I e serviços de Telefonia Voip, oferecendo soluções adaptáveis para empresas de todos os tamanhos.” Source: RevenueBase Database · checked Sep 29, 2026
10	MX Soluções	Indirect evidence	Londrina, BrazilHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “A MX Soluções é uma empresa com foco em soluções de T.I nas áreas de Telecomunicação e dados.” Source: RevenueBase Database · checked Sep 29, 2026
11	Union Network	Indirect evidence	Canoas, BrazilHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “A Union Network é uma empresa especializada em consultoria de telecomunicações, que foi criada para oferecer as melhores soluções disponíveis no segmento, de modo que a sua…” Source: RevenueBase Database · checked Sep 29, 2026
12	Global OSI Brasil Telecomunicacoes E Conectividades	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	1-10	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
13	Isp4 Consultoria	Indirect evidence	Atibaia, BrazilHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Somos uma equipe de consultores especializados em telecomunicações, com uma sólida experiência adquirida em grandes operadoras e provedores, como Claro/NET, Vivo, Algar e Desktop.” Source: RevenueBase Database · checked Sep 29, 2026
14	Ipconnection DO Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “About IPconnection do Brasil -> Mission Enabling our customers IT alternatives that add competitive advantages to business performance-> Vision Understanding the business of our…” Source: RevenueBase Database · checked Sep 29, 2026
15	Smartel Inteligência EM Conectividade	Indirect evidence	Veranopolis, BrazilHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “A Smartel é uma empresa de comunicação completa, especialista em desenvolver projetos especiais para pequenas, médias e grandes empresas.” Source: RevenueBase Database · checked Sep 29, 2026
16	FINTI	Indirect evidence	Passo Fundo, BrazilHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “FinTi Tecnologia is a telecommunications company based out of Av.” Source: RevenueBase Database · checked Sep 29, 2026
17	SIN Telecom Expertise EM Telefonia	Indirect evidence	Limeira, BrazilHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “Com inicio dos trabalhos em Agosto de 2012 à SIN Telecom é um escritório de consultoria em telefonia fixa e móvel corporativo localizado em Limeira, interior de São Paulo.” Source: RevenueBase Database · checked Sep 29, 2026
18	Digital VOX Telecom	Partial evidence	Palhoça, BrazilHQ checked Sep 29, 2026	11-50	7 contacts →
	Partial evidence “A Digital Vox é uma empresa especializada em soluções de comunicação empresarial com foco em telefonia VoIP.” Source: RevenueBase Database · checked Sep 29, 2026
19	LCI Soluções	Indirect evidence	Recife, BrazilHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “Com mais de 17 anos de expertise, a LCI Soluções se destaca como uma empresa altamente especializada em consultoria, projetos, implantação e integração de sistemas de telefonia…” Source: RevenueBase Database · checked Sep 29, 2026
20	Servstar Telecom E Network	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Somos especializados em soluções de comunicação para empresas.” Source: RevenueBase Database · checked Sep 29, 2026
21	Tmaster Informática	Indirect evidence	Guarulhos, BrazilHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
22	Attimo Telecom	Indirect evidence	Santana De Parnaíba, BrazilHQ checked Sep 29, 2026	51-200	5 contacts →
	Indirect evidence “A Attimo Telecom é uma empresa de telecomunicações que nasceu com o foco em Telefonia em Nuvem.” Source: RevenueBase Database · checked Sep 29, 2026
23	YPY Tecnologia	Indirect evidence	Uberlandia, BrazilHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
24	Telmaster Tecnologia Conectando O Futuro	Indirect evidence	Caxias Do Sul, BrazilHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
25	Nextbilling IP Solutions	Partial evidence	Saquarema, BrazilHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Voltada ao desenvolvimento de soluções e Plataformas para Telefonia via Internet (VoIP).” Source: RevenueBase Database · checked Sep 29, 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: voip consulting firms. 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 voip consulting firms.
Partial evidence: Its own public description names part of voip consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name voip consulting firms. 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 186 voip consulting firms based in Brazil

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Voip consulting firms based in Brazil at a glance

As of Sep 29, 2026

13.5%Verified-email coverage

5.5Average contacts per company

1-10Median size (employees)

29.6%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

116

11-50

51-200

5,001-10,000

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 186 companies.

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 voip consulting firms, 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 “voip consulting firms”. 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 voip consulting firms), 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 voip consulting firms, 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, 137 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 29, 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.

Voip consulting firms by metro

Voip consulting firms in Sao Paulo55

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 voip consulting firms, 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 voip consulting firms are there based in Brazil?

RevenueBase identified 186 voip consulting firms 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?

Grupo Union Telecom, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most voip consulting firms?

Sao Paulo leads with 55 headquartered companies, followed by Curitiba (9) and Campinas (8).

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 137 verified decision-maker contacts tracked across these 186 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 29, 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.