Company lists · Data refreshed November 2026

Top 25 Communication platform companies worldwide

RevenueBase identified 1,564 company matches for communication platform companies worldwide as of November 2026 and tracks 58,529 professional contacts across them, including 18,468 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for communication platform 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 November 5, 2026. Country and city lists for communication platform 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 Nov 5, 2026 How this list was built
1,564Companies
58,529Contacts tracked
18,468Verified emails
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The 25 largest communication platform companies worldwide

Ranked by team size
Top 25 of 1,564 company matches for communication platform companies worldwide, 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 matchSan Jose, United StatesHQ recorded Nov 5, 20265,001-10,00010,391 contacts →

Exact match

“Bring teams together, reimagine workspaces, engage new audiences, and delight your customers –– all on the Zoom AI-first work platform you know and love.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBelmont, United StatesHQ recorded Nov 5, 20265,001-10,0006,795 contacts →

Exact match

“RingCentral, Inc.(NYSE: RNG) is a global leader in AI–powered customer engagement, delivering an integrated platform for business phone, SMS, contact center, workforce engagement…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchStockholm, SwedenHQ recorded Nov 5, 20261,001-5,0003,132 contacts →

Exact match

“Sinch’s vision is to connect every business with every customer, everywhere in the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchMenlo Park, CA, United StatesHQ recorded Nov 5, 2026n/a2,483 contacts →

Exact match

“WhatsApp is a fast, simple and reliable way to talk to anyone in the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSunnyvale, CA, United StatesHQ recorded Nov 5, 20261,001-5,0001,411 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 · Nov 5, 2026 · View company records in RevenueBase
6Exact matchRaleigh, United StatesHQ recorded Nov 5, 20261,001-5,0001,199 contacts →

Exact match

“Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLuxembourgHQ recorded Nov 5, 2026501-1,000760 contacts →

Exact match

“Rakuten Viber is one of the most trusted and downloaded apps in the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchPleasant Grove, UT, United StatesHQ recorded Nov 5, 2026501-1,000685 contacts →

Exact match

“Empowering service provider growth with the world’s most trusted Intelligent Communications Fabric.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSunnyvale, CA, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Nov 5, 2026501-1,000636 contacts →

Exact match

“Route Mobile began as an idea in 2004, founded by our Managing Director, Mr Rajdip Gupta – to bring about digital disruption in communication with simplified solutions that…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSanta Clara, CA, United StatesHQ recorded Nov 5, 2026501-1,000555 contacts →

Exact match

“Agora (NASDAQ: API) is the global leader in real-time engagement, providing developers with simple, flexible, and powerful APIs to embed real-time conversational AI, voice, video…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500518 contacts →

Exact match

“Symphony is an AI-powered communication and technology company fueled by interconnected platforms: Messaging, Voice, Directory and Analytics.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,000423 contacts →

Exact match

“We've moved!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNoida, IndiaHQ recorded Nov 5, 2026201-500345 contacts →

Exact match

“MyOperator is a Business AI Operator, a category-defining platform that unifies WhatsApp, calls, and AI-powered chat & voice bots to deliver end-to-end customer communication…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchClichy, FranceHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
17Exact matchКиїв, UkraineHQ recorded Nov 5, 2026501-1,000316 contacts →

Exact match

“Вже 14 років компанія обслуговує широкий спектр клієнтів, включно з малими та середніми бізнесами, а також великими компаніями, забезпечуючи їх усіма необхідними інструментами для…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSan Mateo, CA, United StatesHQ recorded Nov 5, 2026201-500310 contacts →

Exact match

“Sendbird is the AI customer experience company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchGurgaon, IndiaHQ recorded Nov 5, 2026201-500283 contacts →

Exact match

“Established in 2015, Smartping is a leading enterprise and telecommunications service provider, revolutionizing how pan-India businesses connect and engage with their audiences…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHerndon, VA, United StatesHQ recorded Nov 5, 202651-200281 contacts →

Exact match

“Ultatel delivers a powerful yet easy-to-use cloud communications suite that scales with your business-combining voice, SMS, chat, video, online fax, and contact center…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchNoida, IndiaHQ recorded Nov 5, 2026501-1,000267 contacts →

Exact match

“19 Years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAlpharetta, GA, United StatesHQ recorded Nov 5, 202651-200266 contacts →

Exact match

“We solve a critical gap businesses face with employee to client communication, over voice and messaging.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSouth Jordan, UT, United StatesHQ recorded Nov 5, 2026201-500258 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 · Nov 5, 2026 · View company records in RevenueBase
24Exact matchJaipur, IndiaHQ recorded Nov 5, 2026501-1,000257 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchGurgaon, IndiaHQ recorded Nov 5, 2026201-500243 contacts →

Exact match

“At Acefone, we make interactions simple, powerful, and customer focused.”

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

Showing 25 of 1,564 communication platform companies worldwide

See the full list, filter by size, metro and specialty, and access 18,468 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Communication platform companies worldwide at a glance

As of Nov 5, 2026
31.6%Verified-email coverage
37.4Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
581
11-50
630
51-200
219
201-500
67
501-1,000
34
1,001-5,000
14
5,001-10,000
6
10001+
5

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 communication platform companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “communication platform 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 18,468 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.

Communication platform companies by location

9 lists · largest first

Every Communication platform 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 “communication platform companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many communication platform companies are there worldwide?

RevenueBase identified 1,564 company matches for communication platform companies 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?

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

Which country has the most communication platform companies?

The United States leads with 335 companies, followed by India (175) and Brazil (105). Every communication platform companies list by country and city is linked on this page.

Which city has the most communication platform companies?

London leads with 38 company records, followed by Sao Paulo (23) and Mumbai (22).

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 18,468 professional contacts with verified work emails tracked across these 1,564 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.

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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.