Company lists · Data refreshed November 2026

Top 17 Telecom api companies based in Brazil

RevenueBase identified 58 company matches for telecom api companies associated with Brazil as of November 2026 and tracks 844 professional contacts across them, including 149 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for telecom api 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 November 5, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
58Companies
844Contacts tracked
149Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 17 largest telecom api companies based in Brazil

Ranked by team size
Top 17 of 58 company matches for telecom api companies based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGuarapuava, BrazilHQ recorded Nov 5, 202651-200113 contacts →

Exact match

“We believe that technology and intelligence, combined, have the power to transform the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchCuritiba, BrazilHQ recorded Nov 5, 202651-20080 contacts →

Exact match

“Provide numbers to make and receive calls from local or National Lines or Toll Free) in 478 cities in Brazil, via Fixed Telephony Service (E1) or IP (SIP Trunk).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchRio De Janeiro, BrazilHQ recorded Nov 5, 202611-5080 contacts →

Exact match

“O Atende Simples é uma solução completa em atendimento telefônico, com número nacional ou 0800.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchCuritiba, BrazilHQ recorded Nov 5, 202651-20072 contacts →

Exact match

“Sua empresa perde ligações, atendimentos e oportunidades sem saber.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202651-20048 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 · Nov 5, 2026 · View company records in RevenueBase
6Exact matchJuiz De Fora, BrazilHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“A Nvoip é a plataforma de voz, chat e API.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBelo Horizonte, BrazilHQ recorded Nov 5, 202611-5033 contacts →

Exact match

“Transformamos conexões em experiências memoráveis!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSanto Anastácio, BrazilHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“A Phonevox Group é uma empresa de destaque no setor de telecomunicações, oferecendo uma ampla gama de produtos e soluções para melhorar o atendimento e a comunicação dos…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSão Paulo, BrazilHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“A VoxFree é a mais nova empresa do Grupo LCRCM, Fundada para atender a demanda do mercado de telefonia corporativa, tem como foco a satisfação do cliente atendendo desde sua…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBotelhos, BrazilHQ recorded Nov 5, 20261-108 contacts →

Exact match

“A Easytec Brasil é uma empresa de tecnologia que atua no mercado de tecnologia, transformando a telefonia das empresas em uma experiencia inovadora.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Otimi is a VOIP company based in Brazil in the city of São Paulo that serves wholesale customers from all over the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchCuritiba, BrazilHQ recorded Nov 5, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSao Jose Dos Campos, BrazilHQ recorded Nov 5, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchCuritiba, BrazilHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Somos uma empresa que oferece telefonia em nuvem, como PABX Virtual e VoIP, nossa intenção e trazer uma comunicação excelete e que cabe no seu bolso.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202611-505 contacts →

Exact match

“A SIGAVOX, empresa do grupo SIGAVOXONE, disponibiliza para o mercado tecnologia desde 2014.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchCuritiba, BrazilHQ recorded Nov 5, 202611-502 contacts →

Exact match

“A FiberTel VoIP é uma empresa de Tecnologia com foco em telefonia voIP, Omnichannel e PABX virtual.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchUberlândia, BrazilHQ recorded Nov 5, 202611-501 contacts →

Exact match

“Oferecer uma resposta rápida para seu cliente é sempre a melhor a opção.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 17 of 58 telecom api companies based in Brazil

See the full list, filter by size, metro and specialty, and access 149 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Telecom api companies based in Brazil at a glance

As of Nov 5, 2026
17.7%Verified-email coverage
14.6Average contacts per company
11-50Median size (employees)
25.9%Largest-city concentration · Sao Paulo
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
24
51-200
10
201-500
1
501-1,000
1

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 58 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 “telecom api 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 149 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 November 5, 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 “telecom api companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom api companies are there based in Brazil?

RevenueBase identified 58 company matches for telecom api companies associated with Brazil as of November 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?

3c Plus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom api companies?

Sao Paulo leads with 15 company records, followed by Curitiba (7) and Chapeco (3).

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 149 professional contacts with verified work emails tracked across these 58 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 November 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 58 telecom api companies based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

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.