Company lists · Data refreshed September 2026
Top 23 Telecom infrastructure services companies based in Rio De Janeiro, Brazil
RevenueBase identified 108 telecom infrastructure services companies headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 9,683 professional contacts across them, including 107 with verified work emails. Sao Paulo is the largest hub.
This list covers telecom infrastructure services companies headquartered in Rio De Janeiro, 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 16, 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.
The 23 largest telecom infrastructure services companies based in Rio De Janeiro, Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,011 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 129 contacts → | ||||
Partial evidence “Temos grande presença no setor de telecom, ofertando equipamentos e serviços para provedores levarem conectividade aos quatro cantos do Brasil.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 111 contacts → | ||||
Partial evidence “A Lotus ICT é uma empresa focada em fornecer os melhores soluçoes em tecnologia, integrando serviços de infraestrutura nas áreas de cloud services, telecom, finanças e diversos…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 85 contacts → | ||||
Partial evidence “A MLS Wireless é uma empresa de telecomunicações com sede no Rio de Janeiro, fundada em 1995.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 contacts → | ||||
Partial evidence “The signature ISDN Infrastructure and TIC Talents underlines the long term vocation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 contacts → | ||||
Indirect evidence “Somos especialista em Site Acquisition, Licenciamento de Sites Indoor e Outdoor, Projetos e Infraestrutura de construção de sites e reforços de sites Rooftop.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 32 contacts → | ||||
Partial evidence “A Inovsat é uma empresa voltada para o desenvolvimento de projetos em Telecomunicações Via Satélite, com foco nos mercados offshore, de mineração e regiões de difícil acesso com…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 contacts → | ||||
Partial 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 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Partial evidence “Somos uma empresa com ampla atuação no mercado e especializada nas melhores soluções de Telecomunicações.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 contacts → | ||||
Partial evidence “A J A&C Telecomunicações, nasceu da soma da experiência de seus representantes, em mais de 40 anos no setor de tecnologia em telecomunicações.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Partial evidence “A TNB Telecom é uma empresa que desenvolve e aplica soluções de conectividade personalizadas para as necessidades de cada cliente.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Partial evidence “Somos uma empresa de telecomunicações, com possibilidade do uso de uma simples comunicação de link de dados a aplicações de alta tecnologia via satélite.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Partial evidence “A Timaker Tecnologia da Informação é especializada em soluções de alta tecnologia em redes e infraestrutura de TI & Telecomunicações para o mercado corporativo.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Partial evidence “A Onlytel Telecom atua há a mais de 27 anos e, durante esse período, se tornou referência técnica para fornecedores, clientes e parceiros.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Indirect evidence “UNISAT: uma empresa com 33 anos no mercado, vasto histórico de realizações para empresas do Brasil e do exterior, contando com profissionais especializados em uma ampla gama de…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “Uma infra-estrutura de redes e comunicações otimizada, que proporcione redução de custos e maximização de resultados, é mais do que uma simples necessidade.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “Atuamos em diversos segmentos como: indústria naval, petrolífera, serviços e universidades com cobertura nas principais capitais do país.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Empresa de consultoria em Telecomunicações focada em conectividade de alta performance e suporte.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “Visão: Ser reconhecida como a melhor em qualidade em soluções de infraestrutura de redes e segurança, proporcionando inovação e excelência em cada projeto, e sendo a primeira…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Partial evidence “Empresa de atuação no setor de serviços em TI e Telecom, com soluções de infraestrutura, comunicação, suporte, manutenção, segurança e consultoria estratégica de atualização e…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “Empresa prestadora de serviços na área de TI e Telecomunicações, fundada no ano de 2005 na cidade de Saquarema e posteriormente transferida para a Cidade Maravilhosa.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Azimute Rj Telecomunicacoes E Infra-Estrutura is a telecommunications company based out of R Ferreira Pontes, 430, Bloco 03 Apt 801, Rio De Janeiro, Rj, Brazil.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: telecom infrastructure services 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 telecom infrastructure services companies.
- Partial evidence
- Its own public description names part of telecom infrastructure services companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telecom infrastructure services 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 23 of 108 telecom infrastructure services companies based in Rio De Janeiro, Brazil
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Telecom infrastructure services companies based in Rio De Janeiro, Brazil at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 108 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 telecom infrastructure services 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 Rio De Janeiro, Brazil whose own description of what they do matches “telecom infrastructure services 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 telecom infrastructure services 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 telecom infrastructure services companies, and records with no verified work email. Companies headquartered outside Rio De Janeiro 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, 107 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 16, 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.
Telecom infrastructure services companies by metro in Brazil
- Telecom infrastructure services companies in Sao Paulo296
- Telecom infrastructure services companies in Rio De Janeiro108
- Telecom infrastructure services companies in Belo Horizonte66
- Telecom infrastructure services companies in Curitiba45
- Telecom infrastructure services companies in Brasilia30
- Telecom infrastructure services companies in Campinas29
- Telecom infrastructure services companies in Fortaleza28
- Telecom infrastructure services companies in Porto Alegre28
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 telecom infrastructure services 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 telecom infrastructure services companies are there based in Rio De Janeiro, Brazil?
RevenueBase identified 108 telecom infrastructure services companies headquartered in Rio De Janeiro, 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 telecom infrastructure services companies?
Sao Paulo leads with 296 headquartered companies, followed by Rio De Janeiro (108) and Belo Horizonte (66).
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 107 verified decision-maker contacts tracked across these 108 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 16, 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.
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