Company lists · Data refreshed September 2026

Top 25 Telecommunications providers based in Brazil

Name: Telecommunications providers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 3,340 companies tracked

RevenueBase identified 3,340 telecommunications providers headquartered in Brazil as of September 2026 and tracks 235,630 professional contacts across them, including 17,246 with verified work emails. Sao Paulo is the largest hub.

This list covers telecommunications providers 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 19, 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 19, 2026 86% judged on-target in blind review

3,340Companies

235,630Contacts tracked

17,246Verified emails

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The 25 largest telecommunications providers based in Brazil

Ranked by team size

Top 25 of 3,340 telecommunications providers based in Brazil, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications providers: 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	Claro Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	10001+	30,465 contacts →
	Indirect evidence “Prazer, somos a Claro!” Source: RevenueBase Database · checked Sep 19, 2026
2	Vivo Telefônica Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	10001+	29,859 contacts →
	Indirect evidence “Vivo (Telefônica Brasil) is part of the Telefónica Group and with more than 94 million customers, of which 75 million mobile and 19 million fixed, we are the largest…” Source: RevenueBase Database · checked Sep 19, 2026
3	OI	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	10001+	13,575 contacts →
	Indirect evidence “Aqui na Oi, trabalhamos para criar novos futuros e levar a vida digital para todos.” Source: RevenueBase Database · checked Sep 19, 2026
4	TEL Telecomunicações Ltda	Indirect evidence	Barra Funda, BrazilHQ checked Sep 19, 2026	10001+	5,053 contacts →
	Indirect evidence “Perfil Empresarial Com uma gestão focada em desenvolvimento e qualificação das equipes, investimento em alta tecnologia e uma expertise de mais de 20 anos no segmento de…” Source: RevenueBase Database · checked Sep 19, 2026
5	GVT	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	10001+	4,921 contacts →
	Indirect evidence “A GVT é a empresa nacional que mais cresce no setor de telecomunicações.” Source: RevenueBase Database · checked Sep 19, 2026
6	Icomon Tecnologia Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	10001+	4,895 contacts →
	Indirect evidence “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Source: RevenueBase Database · checked Sep 19, 2026
7	Procisa DO Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,538 contacts →
	Indirect evidence “Prazer, somos a Procisa do Brasil!” Source: RevenueBase Database · checked Sep 19, 2026
8	Desktop	Indirect evidence	Sumaré, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,354 contacts →
	Indirect evidence “A Desktop é uma empresa de telecomunicação comprometida em conectar você ao futuro com velocidade, estabilidade e inovação!” Source: RevenueBase Database · checked Sep 19, 2026
9	VERO	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,162 contacts →
	Indirect evidence “Somos a Vero, uma empresa de telecomunicações brasileira.” Source: RevenueBase Database · checked Sep 19, 2026
10	Unifique	Indirect evidence	Timbó, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,807 contacts →
	Indirect evidence “Somos uma empresa de telecomunicações com 28 anos de atuação.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ability Tecnologia E Serviços S A	Indirect evidence	Osasco, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,733 contacts →
	Indirect evidence “Com mais de funcionários, a Ability Tecnologia e Serviços S.A.” Source: RevenueBase Database · checked Sep 19, 2026
12	Alloha Fibra	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,397 contacts →
	Indirect evidence “Somos a quarta maior empresa em número de assinantes e extensão de fibra óptica do País e o maior player independente neste segmento.” Source: RevenueBase Database · checked Sep 19, 2026
13	Alares Internet	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,222 contacts →
	Indirect evidence “Somos uma operadora independente de telecomunicações, com sede na cidade de São Paulo/SP, que oferece serviços de internet de alta velocidade por fibra óptica, além de TV por…” Source: RevenueBase Database · checked Sep 19, 2026
14	Sercomtel	Indirect evidence	Londrina, BrazilHQ checked Sep 19, 2026	501-1,000	1,001 contacts →
	Indirect evidence “A Sercomtel é a empresa paranaense de telecomunicações que oferece soluções completas em telefonia.” Source: RevenueBase Database · checked Sep 19, 2026
15	Brasil Tecpar	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	5,001-10,000	894 contacts →
	Indirect evidence “Há 30 anos, a Brasil TecPar transforma o Brasil através de soluções de tecnologia e conectividade, operando em 9 estados e Distrito Federal com presença em mais de 360 cidades.” Source: RevenueBase Database · checked Sep 19, 2026
16	Mundivox Communications	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	501-1,000	819 contacts →
	Indirect evidence “Com mais de 25 anos de experiência, a Mundivox é uma operadora licenciada pela Anatel, especializada em soluções integradas de comunicação para o mercado corporativo.” Source: RevenueBase Database · checked Sep 19, 2026
17	Valenet	Indirect evidence	Itabira, BrazilHQ checked Sep 19, 2026	1,001-5,000	775 contacts →
	Indirect evidence “Há mais de 25 anos, a Valenet leva conexão para empresas, lares e comunidades.” Source: RevenueBase Database · checked Sep 19, 2026
18	LIGGA	Indirect evidence	Curitiba, BrazilHQ checked Sep 19, 2026	501-1,000	767 contacts →
	Indirect evidence “A Ligga Telecom é a operadora de telecomunicações do Paraná, com sede em Curitiba, referência no estado e pioneira na popularização da banda larga fixa por fibra óptica no Brasil.” Source: RevenueBase Database · checked Sep 19, 2026
19	R2t Telecomunicações	Indirect evidence	Salvador, BrazilHQ checked Sep 19, 2026	1,001-5,000	682 contacts →
	Indirect evidence “A R2T Telecomunicações nasceu em 2009, com o objetivo de superar as expectativas de seus clientes, através dos seus experientes colaboradores, da qualificação das suas atividades…” Source: RevenueBase Database · checked Sep 19, 2026
20	Alea S.A	Indirect evidence	Nova Bassano, BrazilHQ checked Sep 19, 2026	1,001-5,000	638 contacts →
	Indirect evidence “A Empresa ALEA parceiro Vivo, esta no mercado desde 1990, prestando soluções em mobilidade de comunicação.” Source: RevenueBase Database · checked Sep 19, 2026
21	Mhnet Telecom	Indirect evidence	Maravilha, BrazilHQ checked Sep 19, 2026	1,001-5,000	619 contacts →
	Indirect evidence “A Mhnet Telecom é uma empresa de telecomunicações presente nos estados de SC, RS, PR, MS e SP, em ampla expansão para o restante do país.” Source: RevenueBase Database · checked Sep 19, 2026
22	Engeselt	Indirect evidence	Joao Pessoa, BrazilHQ checked Sep 19, 2026	501-1,000	603 contacts →
	Indirect evidence “Fundada em 2008, a Engeselt atua no mercado com a finalidade de atender às demandas provenientes do setor elétrico, telefonia e tecnologia da informação, de forma responsável e…” Source: RevenueBase Database · checked Sep 19, 2026
23	Br.Digital Telecom As14840	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 19, 2026	501-1,000	566 contacts →
	Indirect evidence “BR.Digital Telecom is a company with 25 years of experience in the metropolitan and long-distance networks market, supported by the most modern fiber optic transmission structures.” Source: RevenueBase Database · checked Sep 19, 2026
24	Allrede Telecom	Indirect evidence	Goiânia, BrazilHQ checked Sep 19, 2026	1,001-5,000	522 contacts →
	Indirect evidence “Somos uma empresa líder em telecomunicações na região Centro-Oeste.” Source: RevenueBase Database · checked Sep 19, 2026
25	Americanet	Indirect evidence	Barueri, BrazilHQ checked Sep 19, 2026	501-1,000	455 contacts →
	Indirect evidence “Sobre a America Net: Com presença no mercado brasileiro a America Net é uma operadora especializada em soluções de voz e dados em alta velocidade através de sua rede própria em…” Source: RevenueBase Database · checked Sep 19, 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: telecommunications providers. 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 telecommunications providers.
Partial evidence: Its own public description names part of telecommunications providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications providers. 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 3,340 telecommunications providers based in Brazil

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Telecommunications providers based in Brazil at a glance

As of Sep 19, 2026

7.3%Verified-email coverage

70.5Average contacts per company

11-50Median size (employees)

10.9%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,241

11-50

1,268

51-200

562

201-500

148

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,340 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 telecommunications providers, 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 “telecommunications providers”. 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 telecommunications providers), 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 telecommunications providers, 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, 17,246 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 19, 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.

Telecommunications providers by metro

Telecommunications providers in Sao Paulo363
Telecommunications providers in Rio De Janeiro134
Telecommunications providers in Belo Horizonte94
Telecommunications providers in Curitiba57
Telecommunications providers in Brasilia52
Telecommunications providers in Fortaleza49
Telecommunications providers in Porto Alegre41
Telecommunications providers in Recife40
Telecommunications providers in Salvador39
Telecommunications providers in Goiania36
Telecommunications providers in Campinas35
Telecommunications providers in Manaus30
Telecommunications providers in Guarulhos28

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 telecommunications providers, 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 telecommunications providers are there based in Brazil?

RevenueBase identified 3,340 telecommunications providers 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?

Claro Brasil, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most telecommunications providers?

Sao Paulo leads with 363 headquartered companies, followed by Rio De Janeiro (134) and Belo Horizonte (94).

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 17,246 verified decision-maker contacts tracked across these 3,340 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 19, 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.