Company lists · Data refreshed October 2026

Top 25 Cloud pbx companies worldwide

RevenueBase identified 2,584 company matches for cloud pbx companies worldwide as of October 2026 and tracks 36,182 professional contacts across them, including 11,675 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cloud pbx companies worldwide, 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 October 1, 2026. Country and city lists for cloud pbx companies follow the table.

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 Oct 1, 2026 How this list was built
2,584Companies
36,182Contacts tracked
11,675Verified emails
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The 25 largest cloud pbx companies worldwide

Ranked by team size
Top 25 of 2,584 company matches for cloud pbx companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 matchHolmdel, NJ, United StatesHQ recorded Oct 1, 20261,001-5,0003,429 contacts →

Exact match

“We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Oct 1, 20261,001-5,0002,320 contacts →

Exact match

“As the leader in cloud communications and IT, GoTo addresses real-world challenges with practical innovations and a customer-first mindset.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchSunnyvale, CA, United StatesHQ recorded Oct 1, 20261,001-5,0001,254 contacts →

Exact match

“Intermedia is the cloud communications company that helps over businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSunnyvale, CA, United StatesHQ recorded Oct 1, 2026501-1,000606 contacts →

Exact match

“Ooma delivers phone, messaging, video and advanced communications services that are easy to implement and provide great value.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchMiguel Hidalgo, MexicoHQ recorded Oct 1, 2026501-1,000507 contacts →

Exact match

“Somos C3NTRO, una empresa mexicana de clase mundial con 15 años de experiencia en Telecomunicaciones.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchMarkham, ON, CanadaHQ recorded Oct 1, 2026201-500454 contacts →

Exact match

“Sangoma Technologies Corporation (TSX: STC; Nasdaq: SANG) is a global leader in essential business communications.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchGurgaon, IndiaHQ recorded Oct 1, 2026501-1,000440 contacts →

Exact match

“Founded in 2010, Real Time Data Services (RTDS) is a group of companies excelling in global information technology, specializing in Cloud Computing and Cloud Telephony.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchPlano, TX, United StatesHQ recorded Oct 1, 2026201-500435 contacts →

Exact match

“Family owned and proudly based in Plano, Texas, SpectrumVoIP has kept businesses talking and thriving since 2007.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchAtlanta, GA, United StatesHQ recorded Oct 1, 2026201-500425 contacts →

Exact match

“Fusion Connect, an industry leading cloud communications provider, removes complexity so customers can focus on running their business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Oct 1, 2026201-500398 contacts →

Exact match

“Founded in 2008 by veteran telecommunication entrepreneurs, Phone.com provides over businesses with comprehensive, flexible, and reliable cloud-based communication and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchTallinn, EstoniaHQ recorded Oct 1, 2026201-500334 contacts →

Exact match

“The First Sales-Oriented Unified Communications Solution, now powered by AI Wildix develops secure, AI-powered business communication solutions designed to support revenue growth…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchClichy, FranceHQ recorded Oct 1, 2026201-500319 contacts →

Exact match

“Keyyo développe de nouveaux usages de communication pour les entreprises, notamment avec la voix sur IP.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchRio De Janeiro, BrazilHQ recorded Oct 1, 2026201-500283 contacts →

Exact match

“Call / Contact Center Comunicações Unificadas & Colaboração Infraestrutura em TIC Painel Indicador de Performance - informações em tempo real 24x7 para sua gestão Call /Call /…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchJaipur, IndiaHQ recorded Oct 1, 202651-200236 contacts →

Exact match

“Sarv.com: Revolutionising Customer Experience We believe communication is the backbone of every successful business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchSão Paulo, BrazilHQ recorded Oct 1, 2026201-500235 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 · Oct 1, 2026 · View company records in RevenueBase
16Exact matchSouth Jordan, UT, United StatesHQ recorded Oct 1, 2026201-500226 contacts →

Exact match

“Since 2002, CallTower has been at the forefront of transforming global communication, emerging as a leader in enterprise-class cloud communication, collaboration, and CX solutions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchSouth Plainfield, NJ, United StatesHQ recorded Oct 1, 202651-200212 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLas Vegas, NV, United StatesHQ recorded Oct 1, 2026201-500203 contacts →

Exact match

“NUWAVE Communications is a leading provider of innovative telecommunications solutions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchMoscow, RussiaHQ recorded Oct 1, 2026201-500178 contacts →

Exact match

“Манго Телеком» – разработчик облачных решений для бизнес-коммуникаций.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchChennai, IndiaHQ recorded Oct 1, 202651-200175 contacts →

Exact match

“Pulse Telesystems is a leading telecom solution provider in India, offering businesses personalized telecom solutions that meet their growing needs and beyond.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchFairlawn, OH, United StatesHQ recorded Oct 1, 202651-200174 contacts →

Exact match

“FirstComm delivers smarter business communications and IT solutions that help organizations connect, collaborate, and scale with confidence.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200170 contacts →

Exact match

“bOnline is UK’s leading provider of VoIP services for micro and small businesses.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchSacramento, CA, United StatesHQ recorded Oct 1, 2026n/a170 contacts →

Exact match

“Fortis is a Sacramento Area provider of managed IT services, hosted VoIP, and high speed, redundant internet.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchBangalore, United StatesHQ recorded Oct 1, 2026201-500167 contacts →

Exact match

“VoIP Office, founded in 2004, delivers cloud-based communications and hosted PBX solutions for businesses from home offices to enterprises, combining traditional PBX features with…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchZaventem, BelgiumHQ recorded Oct 1, 2026501-1,000159 contacts →

Exact match

“Destiny, originally Belgian, is a European leader and innovator in secure cloud communications based on its strong and secure mobile-first products and Ucaas offerings.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 2,584 cloud pbx companies worldwide

See the full list, filter by size, metro and specialty, and access 11,675 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cloud pbx companies worldwide at a glance

As of Oct 1, 2026
32.3%Verified-email coverage
14.0Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
1,166
11-50
1,030
51-200
267
201-500
67
501-1,000
24
1,001-5,000
11
5,001-10,000
3
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for cloud pbx companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “cloud pbx 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. 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 11,675 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 October 1, 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.

Cloud pbx companies by location

15 lists · largest first

Every Cloud pbx companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “cloud pbx companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cloud pbx companies are there worldwide?

RevenueBase identified 2,584 company matches for cloud pbx companies worldwide as of October 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?

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

Which country has the most cloud pbx companies?

The United States leads with 898 companies, followed by the United Kingdom (220) and Brazil (150). Every cloud pbx companies list by country and city is linked on this page.

Which city has the most cloud pbx companies?

London leads with 51 company records, followed by Sao Paulo (48) and New York (29).

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 11,675 professional contacts with verified work emails tracked across these 2,584 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 October 1, 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 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.