Company lists · Data refreshed September 2026

Top 25 Telecommunications contractors based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,189 companies tracked

RevenueBase identified 2,189 telecommunications contractors headquartered in Brazil as of September 2026 and tracks 58,588 professional contacts across them, including 4,002 with verified work emails. Sao Paulo is the largest hub.

This list covers telecommunications contractors 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

2,189Companies

58,588Contacts tracked

4,002Verified emails

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The 25 largest telecommunications contractors based in Brazil

Ranked by team size

Top 25 of 2,189 telecommunications contractors 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 contractors: 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	Serede	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	10001+	8,011 contacts →
	Indirect evidence “A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.” Source: RevenueBase Database · checked Sep 19, 2026
2	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
3	Grupo RCS	Indirect evidence	Brasilia, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,810 contacts →
	Indirect evidence “A RCS é uma empresa de Engenharia especializada em oferecer serviços técnicos de missão crítica com alta tecnologia aplicada, para clientes que necessitam manter suas atividades…” Source: RevenueBase Database · checked Sep 19, 2026
4	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
5	Líder Telecom Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	959 contacts →
	Indirect evidence “A Líder Telecom oferece aos clientes serviços de assessoria necessária ao estabelecimento de seu planejamento técnico e operacional para atendimento a redes corporativas de…” Source: RevenueBase Database · checked Sep 19, 2026
6	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
7	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
8	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	587 contacts →
	Indirect evidence “Desde 1978 atuando na execução de Instalações Elétricas e Hidráulicas, a Temon conseguiu firmar sua marca nesse mercado com participação em mais de obras por todo Brasil e…” Source: RevenueBase Database · checked Sep 19, 2026
9	B. Tobace Instalações Elétricas E Telefônicas Ltda	Indirect evidence	Jaboticabal, BrazilHQ checked Sep 19, 2026	1,001-5,000	478 contacts →
	Indirect evidence “B.” Source: RevenueBase Database · checked Sep 19, 2026
10	Icatel	Indirect evidence	Freguesia Do Ó, BrazilHQ checked Sep 19, 2026	201-500	405 contacts →
	Indirect evidence “Fundada em 1975, a ICATEL Telecomunicações Ltda é uma empresa especializada em Telefonia de Uso Público e de Soluções completas para Telecomunicações : Atuando nos segmentos de…” Source: RevenueBase Database · checked Sep 19, 2026
11	Maminfo	Indirect evidence	Campinas, BrazilHQ checked Sep 19, 2026	201-500	389 contacts →
	Indirect evidence “A MAMinfo é uma empresa de Consultoria e integradora de soluções em TI e telecomunicação, comercialização, instalação e suporte técnico para tecnologias de rede.” Source: RevenueBase Database · checked Sep 19, 2026
12	Clemar Engenharia	Indirect evidence	Florianópolis, BrazilHQ checked Sep 19, 2026	501-1,000	369 contacts →
	Indirect evidence “Com mais de meio século de experiência, a Clemar Engenharia constrói uma trajetória sólida e inovadora que a posiciona como referência nacional nos segmentos de Telecomunicações…” Source: RevenueBase Database · checked Sep 19, 2026
13	MY Business Ltda	Indirect evidence	Barueri, BrazilHQ checked Sep 19, 2026	201-500	362 contacts →
	Indirect evidence “A MY Business é uma empresa prestadora de serviços para telecomunicações, que atua no segmento de engenharia celular e TI, especializada na avaliação de qualidade dos serviços…” Source: RevenueBase Database · checked Sep 19, 2026
14	Conecta	Indirect evidence	Minas Gerais, BrazilHQ checked Sep 19, 2026	201-500	351 contacts →
	Indirect evidence “Com a proposta de trazer acesso à Internet de qualidade para a região, a Conecta iniciou suas atividades em 1996.” Source: RevenueBase Database · checked Sep 19, 2026
15	Grupoorion	Indirect evidence	Brasilia, BrazilHQ checked Sep 19, 2026	201-500	350 contacts →
	Indirect evidence “A Orion, fundado há 30 anos, atua em diferentes segmentos de mercado, oferecendo soluções tecnológicas e serviços especializados de engenharia.” Source: RevenueBase Database · checked Sep 19, 2026
16	Radiante Engenharia DE Telecomunicações	Indirect evidence	Curitiba, BrazilHQ checked Sep 19, 2026	1,001-5,000	319 contacts →
	Indirect evidence “Radiante Engenharia, há mais de 30 anos, oferecendo a infraestrutura completa para operadoras e provedores.” Source: RevenueBase Database · checked Sep 19, 2026
17	Megatron Fios E Cabos	Indirect evidence	Cachoeira De Minas, BrazilHQ checked Sep 19, 2026	201-500	298 contacts →
	Indirect evidence “Fundada em abril de 1998, a MEGATRON FIOS E CABOS ESPECIAIS, iniciou suas atividades produzindo exclusivamente cabos coaxiais para antenas, vídeo, circuito fechado de TV, etc…” Source: RevenueBase Database · checked Sep 19, 2026
18	Ageplan Engenharia E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	201-500	296 contacts →
	Indirect evidence “A Ageplan é uma construtora especializada na implementação de infraestrutura para telecomunicações, data centers e instalações industriais.” Source: RevenueBase Database · checked Sep 19, 2026
19	Gigalink	Indirect evidence	Nova Friburgo, BrazilHQ checked Sep 19, 2026	201-500	290 contacts →
	Indirect evidence “Há 23 anos no mercado, somos a primeira empresa de Internet e Telecomunicações da Região Serrana do Rio de Janeiro e pioneira no uso de Fibra Óptica no Brasil.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ultra Engenharia E Construções Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	501-1,000	262 contacts →
	Indirect evidence “A ULTRA ENERGIA LTDA é uma empresa de obras e serviços com atuação nos segmentos de Engenharia Elétrica, Eletrônica, Telecomunicações e Civil.” Source: RevenueBase Database · checked Sep 19, 2026
21	ITS Brasil	Indirect evidence	Salvador, BrazilHQ checked Sep 19, 2026	201-500	260 contacts →
	Indirect evidence “A ITS Brasil é líder em provimento de acesso à internet no Estado da Bahia, com mais de 600km de Rede de Fibra DWDM.” Source: RevenueBase Database · checked Sep 19, 2026
22	Betta Global Partner	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	247 contacts →
	Indirect evidence “O desenvolvimento da Betta Group está alicerçado na capacidade de se adaptar a diversos cenários empresariais, projetando infra-estruturas convergentes e elásticas, promovendo…” Source: RevenueBase Database · checked Sep 19, 2026
23	BBG Telecom	Indirect evidence	Camaragibe, BrazilHQ checked Sep 19, 2026	201-500	245 contacts →
	Indirect evidence “Começamos a escrever nossa história há 15 anos.” Source: RevenueBase Database · checked Sep 19, 2026
24	ALT Telecom	Indirect evidence	Chapeco, BrazilHQ checked Sep 19, 2026	201-500	225 contacts →
	Indirect evidence “A ALT - Acessoline Telecomunicações LTDA, parte do grupo Brasil Tecpar, é uma empresa dedicada a fornecer serviços de conectividade tanto para o mercado wholesale quanto para o…” Source: RevenueBase Database · checked Sep 19, 2026
25	Infolink Telecom	Indirect evidence	Eusébio, BrazilHQ checked Sep 19, 2026	51-200	218 contacts →
	Indirect evidence “A INFOLINK TELECOM é uma empresa especializada em produtos e serviços de comunicação e tecnologia, presente no mercado desde 2004 com DNA de servir com qualidade e excelência…” 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of telecommunications contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications contractors. 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 2,189 telecommunications contractors based in Brazil

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Telecommunications contractors based in Brazil at a glance

As of Sep 19, 2026

6.8%Verified-email coverage

26.8Average contacts per company

11-50Median size (employees)

17.1%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

933

11-50

823

51-200

293

201-500

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 2,189 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 4,002 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 contractors by metro

Telecommunications contractors in Sao Paulo374
Telecommunications contractors in Rio De Janeiro140
Telecommunications contractors in Belo Horizonte97
Telecommunications contractors in Curitiba75
Telecommunications contractors in Campinas51
Telecommunications contractors in Porto Alegre39
Telecommunications contractors in Recife33
Telecommunications contractors in Brasilia30
Telecommunications contractors in Fortaleza28
Telecommunications contractors in Salvador27
Telecommunications contractors in Guarulhos26
Telecommunications contractors in Sorocaba25

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 contractors, 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 contractors are there based in Brazil?

RevenueBase identified 2,189 telecommunications contractors 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?

Serede, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most telecommunications contractors?

Sao Paulo leads with 374 headquartered companies, followed by Rio De Janeiro (140) and Belo Horizonte (97).

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 4,002 verified decision-maker contacts tracked across these 2,189 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.