Company lists · Data verified August 2026

Top 17 Cloud phone system companies based in Brazil

Name: Cloud phone system companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 66 companies tracked

There are 66 cloud phone system companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 675 professional contacts across them, including 117 with verified work emails and 12 with mobile numbers. Sao Paulo is the largest hub.

This list covers cloud phone system companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

66Companies

675Contacts tracked

117Verified emails

12Mobile numbers

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The 17 largest cloud phone system companies based in Brazil

Ranked by team size

Top 17 of 66 cloud phone system companies based in Brazil, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	3c Plus	Guarapuava	51-200	127	28
2	Atende Simples	Rio De Janeiro	11-50	75	7
3	Grupo Union Telecom	Sao Paulo	51-200	45	14
4	IUNGO	Santo Andre	51-200	38	25
5	BR Conecta	Boituva	51-200	36	4
6	Fale Paco	Sao Paulo	51-200	28	3
7	United World Telecom	Sao Paulo	11-50	26	17
8	Inovacomm Comunicações Unificadas	Rio	11-50	18	4
9	Digital VOX Telecom	Palhoca	11-50	7	2
10	Lansip Tecnologia	Curitiba	1-10	6	3
11	OTIMI	Sao Paulo	11-50	6	2
12	MBM	Sao Jose Do Rio Preto	1-10	6	1
13	Attimo Telecom	Santana De Parnaiba	51-200	5	3
14	AVOIP	Curitiba	11-50	5	1
15	Maricá Telecomunicações	Marica	11-50	1	1
16	Portalvoip	Sao Paulo	1-10	1	1
17	Duovox	Sao Paulo	1-10	1	1

Showing 17 of 66 cloud phone system companies based in Brazil

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Cloud phone system companies based in Brazil at a glance

As of Aug 28, 2026

11-50Median size (employees)

Sao PauloLargest hub · 24 HQs

12Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

Cloud phone system companies by metro

Metro	Companies
Cloud phone system companies in Sao Paulo	24
Cloud phone system companies in Sao Jose Do Rio Preto	3
Cloud phone system companies in Curitiba	3
Cloud phone system companies in Porto Alegre	2
Cloud phone system companies in Santo Andre	2
Cloud phone system companies in Sao Caetano Do Sul	2
Cloud phone system companies in Palhoca	2
Cloud phone system companies in Ribeirao Preto	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cloud phone system companies”, with match quality audited by blind human judging, and headquartered in Brazil.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cloud phone system companies are there based in Brazil?

There are 66 cloud phone system companies headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

3c Plus, headquartered in Guarapuava, tops this list with the largest team on record.

Which city has the most cloud phone system companies?

Sao Paulo leads with 24 headquartered companies, followed by Sao Jose Do Rio Preto (3) and Curitiba (3).

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 117 verified decision-maker contacts tracked across these 66 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.