Company lists · Data refreshed September 2026

Top 25 International calling providers worldwide

RevenueBase identified 505 company matches for international calling providers worldwide as of September 2026 and tracks 4,994 professional contacts across them, including 465 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for international calling 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 September 20, 2026. Country and city lists for international calling 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 Sep 20, 2026 How this list was built
505Companies
4,994Contacts tracked
465Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest international calling providers worldwide

Ranked by team size
Top 25 of 505 company matches for international calling providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchLondon, United KingdomHQ recorded Sep 20, 2026501-1,000579 contacts →

Exact match

“Lycatel is the global market leader in the calling card market, generating 1.6 billion minutes per month, with 9 million customers, across 17 markets globally.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchStockholm, SwedenHQ recorded Sep 20, 202651-20097 contacts →

Exact match

“Rebtel is a consumer communications company built for dual-culture people-immigrants, expats, and international students who live between cultures.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20093 contacts →

Exact match

“BlaBla Connect is an international calling app, available for IOS and Android users.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchProvidencia, ChileHQ recorded Sep 20, 202651-20051 contacts →

Exact match

“Redvoiss fue la primera empresa latinoamericana en ofrecer el servicio de Telefonía por Internet, cuenta con más de una década en el mercado de las telecomunicaciones.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchTerrebonne, QC, CanadaHQ recorded Sep 20, 202651-20050 contacts →

Exact match

“VoIP.ms is devoted to providing quality local and international connections to our customers around the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchTroy, MI, United StatesHQ recorded Sep 20, 2026201-50048 contacts →

Exact match

“SRVR - the leader in International Telecommunications – helps our customers connect with the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Sep 20, 202611-5048 contacts →

Exact match

“Bridging the Digital Divide with Global Communication & Services Talk360 is the world’s leading calling app for both global travelers and the African diaspora, connecting over 6…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 202651-20043 contacts →

Exact match

“TollFreeForwarding.com is the #1 provider of international virtual phone numbers & international call forwarding services in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchSingaporeHQ recorded Sep 20, 202611-5041 contacts →

Exact match

“IPage Infotech Pte Ltd (IPage Telecom) Reg No: 200508448D, A Singapore Telecom Company since the year 2005.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchWilmington, DE, United StatesHQ recorded Sep 20, 202611-5040 contacts →

Exact match

“Founded in 2004, Beox brings 20 years of expertise in the international telecommunication industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchManama, BahrainHQ recorded Sep 20, 202611-5038 contacts →

Exact match

“GULFSIP is a VoIP systems call provider that can be used by anyone, anywhere.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNew Delhi, IndiaHQ recorded Sep 20, 202651-20036 contacts →

Exact match

“Be it data requirements or international calling Roam1 is your one-stop-shop for international connectivity.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBengaluru, IndiaHQ recorded Sep 20, 202651-20035 contacts →

Exact match

“Bridgei2p Solutions comes across as a VoIP (Voice Over Internet Protocol) solutions provider whose aim is to provide class leading VoIP technology to various industry…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchHayes, United KingdomHQ recorded Sep 20, 202611-5034 contacts →

Exact match

“Voicetec provides a range of telecommunication solutions and services in the areas wholesale of International minutes as well as of origination and termination of calls for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLongview, TX, United StatesHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“NetworkIP provides international long distance services for wireless, wired and VoIP networks to mobile and cable operators, distributors and agents.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLas Rozas De Madrid, SpainHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Somos un Operador Global de Telecomunicaciones especializado en soluciones de voz integradas para ayudar a las empresas a crecer y escalar sus negocios.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBerlin, GermanyHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“Established in 2002, 42com Telecommunication GmbH started by designing a white-label VoIP platform.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchLewes, DE, United KingdomHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“Aiwo Networks is a leading Voice over IP (VoIP) services provider registered in USA.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchSheridan, United StatesHQ recorded Sep 20, 20261-1027 contacts →

Exact match

“Shree Telecom LLC is a USA Based VoIP company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLuxembourg, CyprusHQ recorded Sep 20, 202651-20025 contacts →

Exact match

“Nymgo offers travellers and expats high quality international calls at the most affordable rates.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCeuta, SpainHQ recorded Sep 20, 202651-20024 contacts →

Exact match

“Smarteletec's most successful product, Numero eSIM, is a mobile app that provides all the telecom services needed to communicate locally and globally in the most convenient and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchДовер, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Armatel - is an international service provider founded by a team of professionals in the field of telecommunications with solid and extensive knowledge and experience, registered…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSheffield, United KingdomHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“Phone the world from 0.3p per minute!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchOrlando, FL, United StatesHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“Voxbeam is a leading provider of wholesale international call termination.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchJerusalem, IsraelHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“Choose either a single stand-alone service or get a convenient bundle with a choice of high-speed internet, mobile plans, landlines, US/UK Phone numbers, and TV packages for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 505 international calling providers worldwide

See the full list, filter by size, metro and specialty, and access 465 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

International calling providers worldwide at a glance

As of Sep 20, 2026
9.3%Verified-email coverage
9.9Average contacts per company
11-50Median size (employees)
5.7%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
199
11-50
203
51-200
74
201-500
15
501-1,000
8
1,001-5,000
2
5,001-10,000
3

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 international calling providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “international calling 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 465 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 20, 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.

International calling providers by location

2 lists · largest first

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

Countries

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 “international calling providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international calling providers are there worldwide?

RevenueBase identified 505 company matches for international calling providers worldwide 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?

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

Which country has the most international calling providers?

The United States leads with 99 companies, followed by the United Kingdom (54). Every international calling providers list by country and city is linked on this page.

Which city has the most international calling providers?

London leads with 29 company records, followed by New York (11) and Singapore (9).

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 465 professional contacts with verified work emails tracked across these 505 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 505 international calling providers worldwide. 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.