Company lists · Data refreshed November 2026

Top 25 Voip telephone service providers worldwide

RevenueBase identified 3,208 company matches for voip telephone service providers worldwide as of November 2026 and tracks 31,048 professional contacts across them, including 7,531 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for voip telephone service providers 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 November 6, 2026. Country and city lists for voip telephone service providers 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 Nov 6, 2026 How this list was built
3,208Companies
31,048Contacts tracked
7,531Verified emails
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The 25 largest voip telephone service providers worldwide

Ranked by team size
Top 25 of 3,208 company matches for voip telephone service providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchBoston, MA, United StatesHQ recorded Nov 6, 20261,001-5,0002,412 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 2026501-1,000651 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMiguel Hidalgo, MexicoHQ recorded Nov 6, 2026501-1,000533 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500433 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000418 contacts →

Exact match

“VoIP/ToIP services Operator and Integrator Telephony solutions for small and medium-sized enterprises.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTallinn, EstoniaHQ recorded Nov 6, 2026201-500346 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchClichy, FranceHQ recorded Nov 6, 2026201-500327 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGaithersburg, MD, United StatesHQ recorded Nov 6, 20261,001-5,000253 contacts →

Exact match

“BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTroy, MI, United StatesHQ recorded Nov 6, 2026201-500199 contacts →

Exact match

“VoIP Office, founded in 2004, provides cloud-based communications and hosted PBX solutions that combine traditional PBX features with VoIP functionality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHyderabad, IndiaHQ recorded Nov 6, 2026501-1,000198 contacts →

Exact match

“Excell Media is the Internet Service Provider (ISP) solution for an impatient world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSacramento, CA, United StatesHQ recorded Nov 6, 2026n/a175 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChennai, IndiaHQ recorded Nov 6, 202651-200172 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“Zultys is a premier provider of omnichannel, Unified Communications, hosted business phone services and premise-based communications systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew Delhi -, IndiaHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“World Phone Internet Services Private Limited has ushered in a new era in communications for India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200162 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchClichy, FranceHQ recorded Nov 6, 2026501-1,000146 contacts →

Exact match

“Bienvenue dans le monde des communications d’entreprises nouvelles générations : connectées, intelligentes, flexibles et sécurisées.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500146 contacts →

Exact match

“For over 25 years, Cypress Communications has been helping small-to-medium enterprises (SMEs) connect, communicate, collaborate and continue® with a range of fully hosted and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchChennai, IndiaHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Unifiedvoice is a globally recognized VoIP service and solutions provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSignal Hill, CA, United StatesHQ recorded Nov 6, 202611-50143 contacts →

Exact match

“Transcom Telecommunications (formerly called "Transcom Services") is a Veteran Owned Business founded in 1986 on 3 core ideas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan José, Costa RicaHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“En American Data nos especializamos en proveer internet empresarial de primera clase, además de brindar soluciones integrales de comunicación para su empresa, como lo son…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAmherst, NY, United StatesHQ recorded Nov 6, 202611-50112 contacts →

Exact match

“We Solve Problems and Create Solutions with VoIP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWilmington, United StatesHQ recorded Nov 6, 202611-50112 contacts →

Exact match

“KOL Telecom is the leading innovator of small business Voice over IP (VoIP) Phone services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWan Chai, Hong KongHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“CommPeak makes cloud-based business communication easier and more affordable, empowering people with superior quality products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchTirana, AlbaniaHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Digicom, Përtej shpejtësisë!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Made for businesses of all sizes, Bicom Systems revolutionizes communications by providing PBXware, the world's most unified turnkey open standards hosted telephony platform, plus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,208 voip telephone service providers worldwide

See the full list, filter by size, metro and specialty, and access 7,531 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Voip telephone service providers worldwide at a glance

As of Nov 6, 2026
24.3%Verified-email coverage
9.7Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,510
11-50
1,298
51-200
280
201-500
50
501-1,000
18
1,001-5,000
11
5,001-10,000
4
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 voip telephone service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “voip telephone service providers” 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 7,531 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 6, 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.

Voip telephone service providers by location

17 lists · largest first

Every Voip telephone service providers 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 “voip telephone service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many voip telephone service providers are there worldwide?

RevenueBase identified 3,208 company matches for voip telephone service providers worldwide 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?

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

Which country has the most voip telephone service providers?

The United States leads with 1,062 companies, followed by the United Kingdom (343) and Canada (156). Every voip telephone service providers list by country and city is linked on this page.

Which city has the most voip telephone service providers?

London leads with 84 company records, followed by New York (46) and Sao Paulo (35).

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 7,531 professional contacts with verified work emails tracked across these 3,208 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 6, 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.