Company lists · Data refreshed September 2026
Top 25 Calling companies based in Brazil
RevenueBase identified 525 company matches for calling companies associated with Brazil as of September 2026 and tracks 12,990 professional contacts across them, including 905 with verified work emails. Sao Paulo is the largest hub.
This list covers company matches for calling companies associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 25 largest calling companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,807 contacts → | ||||
Exact match “Somos uma empresa de telecomunicações com 28 anos de atuação.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 1,733 contacts → | ||||
Exact match “Com mais de funcionários, a Ability Tecnologia e Serviços S.A.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 1,001 contacts → | ||||
Exact match “A Sercomtel é a empresa paranaense de telecomunicações que oferece soluções completas em telefonia.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 819 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 518 contacts → | ||||
Exact match “A DDS é uma empresa de tecnologia especializada na integração de sistemas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 377 contacts → | ||||
Exact match “Smart internet and telephony solutions for you business.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 279 contacts → | ||||
Exact match “A IK Solution dispõe de diversas soluções inovadoras para seu negócio sair na frente.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 273 contacts → | ||||
Exact match “A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 235 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 178 contacts → | ||||
Exact match “Somos especialistas em telecomunicações para empresas, contamos com atendimento diferenciado e exclusivo, respeitando e satisfazendo o perfil do cliente.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 154 contacts → | ||||
Exact match “Há 14 anos no mercado em prestações de serviços em Banda Larga, TV por assinatura, cabeamento estruturado, Call Center, proporcionando em atender melhor os cliente garantindo…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 140 contacts → | ||||
Exact match “A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 61 contacts → | ||||
Exact match “Na Agil Telecom, trabalhamos para simplificar a comunicação das empresas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 57 contacts → | ||||
Exact match “A NipBr possui o objetivo de oferecer ao mercado corporativo meios de comunicação mais ágeis, seguros e eficientes, com soluções integradas, a fim de aproximar as distâncias entre…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 52 contacts → | ||||
Exact match “Enfim uma operadora que descomplica sua vida” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 51 contacts → | ||||
Exact match “Empresa comprometida em prover soluções e serviços de alta qualidade em telecomunicações, que atendam as expectativas de seus clientes e colaboradores.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 46 contacts → | ||||
Exact match “A HOJE Telecom é uma Operadora Fixa que provê serviço de telefonia exclusivamente para empresas, com alta qualidade de atendimento e serviço, a preços muito abaixo do mercado…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 46 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 44 contacts → | ||||
Exact match “O Grupo Union Telecom é referência em telecomunicações, oferecendo aos clientes e parceiros 20 anos de experiência, com profissionais capacitados, certificados e experientes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 40 contacts → | ||||
Exact match “RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 38 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 37 contacts → | ||||
Exact match “With offices in North and South America, and across Europe, Alhambra offers a global presence with localized solutions, support, and expertise.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 36 contacts → | ||||
Exact match “A Voitel atua há mais de 20 anos no mercado e é pioneira em Telefonia IP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 36 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 36 contacts → | ||||
Exact match “Soluções econômicas e eficazes para você e para sua empresa.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “calling companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 525 calling companies based in Brazil
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Calling companies based in Brazil at a glance
As of Sep 21, 2026Companies by employee count
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 525 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Brazil whose business descriptions match “calling companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 905 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “calling companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many calling companies are there based in Brazil?
RevenueBase identified 525 company matches for calling companies associated with Brazil as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Unifique tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most calling companies?
Sao Paulo leads with 118 company records, followed by Belo Horizonte (25) and Curitiba (22).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 905 professional contacts with verified work emails tracked across these 525 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 525 calling companies based in Brazil. Start with a free account, no credit card.
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Browse the directory
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 SmartSearch, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Calling companies based in Austin, United States
- Calling companies based in Dallas, United States
- Calling companies based in Houston, United States
- Calling companies based in New York, United States
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Company intelligence · public preview
Top 25 calling companies based in Brazil
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 525 matching company records for calling companies based in Brazil, with 12,990 tracked contacts and 905 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 calling companies based in Brazil
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Unifiqueunifique.com.brHQ: Timbó, BrazilReported employees: 1,001-5,000 | Timbó, Brazil | 1,001-5,000 | Exact match | 1,807 contacts → |
“Somos uma empresa de telecomunicações com 28 anos de atuação.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ability Tecnologia E Serviços S Aabilitytecnologia.com.brHQ: Osasco, BrazilReported employees: 1,001-5,000 | Osasco, Brazil | 1,001-5,000 | Exact match | 1,733 contacts → |
“Com mais de funcionários, a Ability Tecnologia e Serviços S.A.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sercomtelsercomtel.com.brHQ: Londrina, BrazilReported employees: 501-1,000 | Londrina, Brazil | 501-1,000 | Exact match | 1,001 contacts → |
“A Sercomtel é a empresa paranaense de telecomunicações que oferece soluções completas em telefonia.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Mundivox Communicationsmundivox.comHQ: São Paulo, BrazilReported employees: 501-1,000 | São Paulo, Brazil | 501-1,000 | Exact match | 819 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  DDS Telecomunicações Ltdadds.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 518 contacts → |
“A DDS é uma empresa de tecnologia especializada na integração de sistemas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Telecalltelecall.comHQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 377 contacts → |
“Smart internet and telephony solutions for you business.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  IKik.com.brHQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 279 contacts → |
“A IK Solution dispõe de diversas soluções inovadoras para seu negócio sair na frente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Handphone Telecomunicaçõeshandphone.com.br HQ: Osasco, BrazilReported employees: 201-500 | Osasco, Brazil | 201-500 | Exact match | 273 contacts → |
“A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Telium Networkstelium.com.brHQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 235 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Vivo Empresas GOvivoempresasgo.com.brHQ: Goias, BrazilReported employees: Not recorded | Goias, Brazil | Not recorded | Exact match | 178 contacts → |
“Somos especialistas em telecomunicações para empresas, contamos com atendimento diferenciado e exclusivo, respeitando e satisfazendo o perfil do cliente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Afline Manutenção E Instalação Ltdaafline.com.brHQ: Manaus, BrazilReported employees: 201-500 | Manaus, Brazil | 201-500 | Exact match | 154 contacts → |
“Há 14 anos no mercado em prestações de serviços em Banda Larga, TV por assinatura, cabeamento estruturado, Call Center, proporcionando em atender melhor os cliente garantindo…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  a.telecomatelecom.com.brHQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 140 contacts → |
“A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Agil Telecomagiltelecom.com.brHQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 61 contacts → |
“Na Agil Telecom, trabalhamos para simplificar a comunicação das empresas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Nipbr Telecomnipbr.com.brHQ: São José Dos Campos, BrazilReported employees: 201-500 | São José Dos Campos, Brazil | 201-500 | Exact match | 57 contacts → |
“A NipBr possui o objetivo de oferecer ao mercado corporativo meios de comunicação mais ágeis, seguros e eficientes, com soluções integradas, a fim de aproximar as distâncias entre…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Contel Telecomconteltelecom.com.br HQ: Santa Cruz Do Sul, BrazilReported employees: 11-50 | Santa Cruz Do Sul, Brazil | 11-50 | Exact match | 52 contacts → |
“Enfim uma operadora que descomplica sua vida” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Telegestãotelegestao.com.br HQ: Porto Alegre, BrazilReported employees: 51-200 | Porto Alegre, Brazil | 51-200 | Exact match | 51 contacts → |
“Empresa comprometida em prover soluções e serviços de alta qualidade em telecomunicações, que atendam as expectativas de seus clientes e colaboradores.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Hoje Telecomhojetelecom.com.brHQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 46 contacts → |
“A HOJE Telecom é uma Operadora Fixa que provê serviço de telefonia exclusivamente para empresas, com alta qualidade de atendimento e serviço, a preços muito abaixo do mercado…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cepaincepain.com.br HQ: Assis Chateaubriand, BrazilReported employees: 51-200 | Assis Chateaubriand, Brazil | 51-200 | Exact match | 46 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 |  Grupo Union Telecomuniontelecom.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 44 contacts → |
“O Grupo Union Telecom é referência em telecomunicações, oferecendo aos clientes e parceiros 20 anos de experiência, com profissionais capacitados, certificados e experientes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Redt Telecomredt.cloudHQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 40 contacts → |
“RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Facilita Telecomfacilitatelecom.com.brHQ: Ubá, BrazilReported employees: 11-50 | Ubá, Brazil | 11-50 | Exact match | 38 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Alhambrait BRalhambrait.com.brHQ: Curitiba, BrazilReported employees: 201-500 | Curitiba, Brazil | 201-500 | Exact match | 37 contacts → |
“With offices in North and South America, and across Europe, Alhambra offers a global presence with localized solutions, support, and expertise.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Voitel Soluções DE Comunicaçãovoitel.com.brHQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 36 contacts → |
“A Voitel atua há mais de 20 anos no mercado e é pioneira em Telefonia IP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  BR Conectabrconecta.com.brHQ: Boituva, BrazilReported employees: 51-200 | Boituva, Brazil | 51-200 | Exact match | 36 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Voicecorp Business Telecomvoicecorp.com.brHQ: Recife, BrazilReported employees: 11-50 | Recife, Brazil | 11-50 | Exact match | 36 contacts → |
“Soluções econômicas e eficazes para você e para sua empresa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 525 company matches
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Calling companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
524 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 525 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for calling companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many calling companies did RevenueBase find based in Brazil?
The saved snapshot records 525 matching company records, 12,990 tracked contacts and 905 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Calling companies by geography
- Calling companies based in Austin, United States
- Calling companies based in Dallas, United States
- Calling companies based in Houston, United States
- Calling companies based in New York, United States
- Calling companies based in Argentina
- Calling companies based in Australia
- Calling companies based in Austria
- Calling companies based in Belgium
- Calling companies based in Canada
- Calling companies based in Chile
- Calling companies based in Colombia
- Calling companies based in France
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 calling companies based in Brazil. Snapshot: September 21, 2026. https://revenuebase.ai/companies/calling-companies/brazil.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Calling companies based in Austin, United States
- Calling companies based in Dallas, United States
- Calling companies based in Houston, United States
- Calling companies based in New York, United States
- Calling companies based in Argentina
- Calling companies based in Australia
Company intelligence · public preview
Top 25 calling companies based in Brazil
RevenueBase records 525 matching company records for calling companies based in Brazil, with 12,990 tracked contacts and 905 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 calling companies based in Brazil
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Unifiqueunifique.com.br HQ: Timbó, BrazilReported employees: 1,001-5,000 | Timbó, Brazil | 1,001-5,000 | Exact match | 1,807 contacts → |
“Somos uma empresa de telecomunicações com 28 anos de atuação.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ability Tecnologia E Serviços S Aabilitytecnologia.com.br HQ: Osasco, BrazilReported employees: 1,001-5,000 | Osasco, Brazil | 1,001-5,000 | Exact match | 1,733 contacts → |
“Com mais de funcionários, a Ability Tecnologia e Serviços S.A.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sercomtelsercomtel.com.br HQ: Londrina, BrazilReported employees: 501-1,000 | Londrina, Brazil | 501-1,000 | Exact match | 1,001 contacts → |
“A Sercomtel é a empresa paranaense de telecomunicações que oferece soluções completas em telefonia.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mundivox Communicationsmundivox.com HQ: São Paulo, BrazilReported employees: 501-1,000 | São Paulo, Brazil | 501-1,000 | Exact match | 819 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | DDS Telecomunicações Ltdadds.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 518 contacts → |
“A DDS é uma empresa de tecnologia especializada na integração de sistemas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Telecalltelecall.com HQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 377 contacts → |
“Smart internet and telephony solutions for you business.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | IKik.com.br HQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 279 contacts → |
“A IK Solution dispõe de diversas soluções inovadoras para seu negócio sair na frente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Handphone Telecomunicaçõeshandphone.com.br HQ: Osasco, BrazilReported employees: 201-500 | Osasco, Brazil | 201-500 | Exact match | 273 contacts → |
“A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Telium Networkstelium.com.br HQ: São Paulo, BrazilReported employees: 201-500 | São Paulo, Brazil | 201-500 | Exact match | 235 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Vivo Empresas GOvivoempresasgo.com.br HQ: Goias, BrazilReported employees: Not recorded | Goias, Brazil | Not recorded | Exact match | 178 contacts → |
“Somos especialistas em telecomunicações para empresas, contamos com atendimento diferenciado e exclusivo, respeitando e satisfazendo o perfil do cliente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Afline Manutenção E Instalação Ltdaafline.com.br HQ: Manaus, BrazilReported employees: 201-500 | Manaus, Brazil | 201-500 | Exact match | 154 contacts → |
“Há 14 anos no mercado em prestações de serviços em Banda Larga, TV por assinatura, cabeamento estruturado, Call Center, proporcionando em atender melhor os cliente garantindo…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | a.telecomatelecom.com.br HQ: Brasília, BrazilReported employees: 51-200 | Brasília, Brazil | 51-200 | Exact match | 140 contacts → |
“A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Agil Telecomagiltelecom.com.br HQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 61 contacts → |
“Na Agil Telecom, trabalhamos para simplificar a comunicação das empresas.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nipbr Telecomnipbr.com.br HQ: São José Dos Campos, BrazilReported employees: 201-500 | São José Dos Campos, Brazil | 201-500 | Exact match | 57 contacts → |
“A NipBr possui o objetivo de oferecer ao mercado corporativo meios de comunicação mais ágeis, seguros e eficientes, com soluções integradas, a fim de aproximar as distâncias entre…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Contel Telecomconteltelecom.com.br HQ: Santa Cruz Do Sul, BrazilReported employees: 11-50 | Santa Cruz Do Sul, Brazil | 11-50 | Exact match | 52 contacts → |
“Enfim uma operadora que descomplica sua vida” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Telegestãotelegestao.com.br HQ: Porto Alegre, BrazilReported employees: 51-200 | Porto Alegre, Brazil | 51-200 | Exact match | 51 contacts → |
“Empresa comprometida em prover soluções e serviços de alta qualidade em telecomunicações, que atendam as expectativas de seus clientes e colaboradores.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Hoje Telecomhojetelecom.com.br HQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 46 contacts → |
“A HOJE Telecom é uma Operadora Fixa que provê serviço de telefonia exclusivamente para empresas, com alta qualidade de atendimento e serviço, a preços muito abaixo do mercado…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cepaincepain.com.br HQ: Assis Chateaubriand, BrazilReported employees: 51-200 | Assis Chateaubriand, Brazil | 51-200 | Exact match | 46 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Grupo Union Telecomuniontelecom.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 44 contacts → |
“O Grupo Union Telecom é referência em telecomunicações, oferecendo aos clientes e parceiros 20 anos de experiência, com profissionais capacitados, certificados e experientes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Redt Telecomredt.cloud HQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 40 contacts → |
“RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Facilita Telecomfacilitatelecom.com.br HQ: Ubá, BrazilReported employees: 11-50 | Ubá, Brazil | 11-50 | Exact match | 38 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Alhambrait BRalhambrait.com.br HQ: Curitiba, BrazilReported employees: 201-500 | Curitiba, Brazil | 201-500 | Exact match | 37 contacts → |
“With offices in North and South America, and across Europe, Alhambra offers a global presence with localized solutions, support, and expertise.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Voitel Soluções DE Comunicaçãovoitel.com.br HQ: São Paulo, BrazilReported employees: 11-50 | São Paulo, Brazil | 11-50 | Exact match | 36 contacts → |
“A Voitel atua há mais de 20 anos no mercado e é pioneira em Telefonia IP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | BR Conectabrconecta.com.br HQ: Boituva, BrazilReported employees: 51-200 | Boituva, Brazil | 51-200 | Exact match | 36 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Voicecorp Business Telecomvoicecorp.com.br HQ: Recife, BrazilReported employees: 11-50 | Recife, Brazil | 11-50 | Exact match | 36 contacts → |
“Soluções econômicas e eficazes para você e para sua empresa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 525 company matches
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Calling companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
524 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 525 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for calling companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many calling companies did RevenueBase find based in Brazil?
The saved snapshot records 525 matching company records, 12,990 tracked contacts and 905 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
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Cite this list
RevenueBase Data Team. Top 25 calling companies based in Brazil. Snapshot: September 21, 2026. https://revenuebase.ai/companies/calling-companies/brazil.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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