Company lists · Data refreshed November 2026

Top 25 Real-time communication software companies worldwide

RevenueBase identified 671 company matches for real-time communication software companies worldwide as of November 2026 and tracks 36,058 professional contacts across them, including 6,969 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for real-time communication software 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 real-time communication software 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
671Companies
36,058Contacts tracked
6,969Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest real-time communication software companies worldwide

Ranked by team size
Top 25 of 671 company matches for real-time communication software 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 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
3Exact matchMunich, VA, GermanyHQ recorded Nov 5, 20265,001-10,0001,980 contacts →

Exact match

“Unify is now part of Mitel!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 20261,001-5,0001,954 contacts →

Exact match

“Plantronics and Polycom are now Poly.”

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 matchXiamen, ChinaHQ recorded Nov 5, 20261,001-5,000829 contacts →

Exact match

“Yealink (Stock Code: 300628) is a global brand that specializes in video conferencing, voice communications and collaboration solutions with best-in-class quality, innovative…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchChennai, IndiaHQ recorded Nov 5, 2026501-1,000801 contacts →

Exact match

“FULL Creative is a Portland-based product company with offices in India (Chennai), Canada (Toronto) and the United Kingdom (Edinburgh).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchRedmond, WA, United StatesHQ recorded Nov 5, 202610001+468 contacts →

Exact match

“The next generation of Skype from Microsoft gives you better ways to chat, call, and plan fun things to do with the people in your life every day.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchAustin, United StatesHQ recorded Nov 5, 2026201-500430 contacts →

Exact match

“Lifesize delivers immersive communication experiences for the global enterprise.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact match東京都中央区, JapanHQ recorded Nov 5, 2026501-1,000401 contacts →

Exact match

“At Cybozu, our mission is to build a society brimming with teamwork.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchConcord, TX, United StatesHQ recorded Nov 5, 20261,001-5,000315 contacts →

Exact match

“About Aastra Technologies Limited Aastra Technologies Limited (TSX: “AAH”), is a leading company at the forefront of the enterprise communication market.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 2026501-1,000266 contacts →

Exact match

“Please be advised that BlueJeans by Verizon is being sunset, concluding in the first half of 2024.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchGaithersburg, MD, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
17Exact matchSouth Plainfield, NJ, United StatesHQ recorded Nov 5, 2026201-500212 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchPalo Alto, CA, United StatesHQ recorded Nov 5, 2026201-500208 contacts →

Exact match

“Voximplant versatile cloud platform enables business to bring interaction to a different level.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchMoscow, RussiaHQ recorded Nov 5, 2026201-500190 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchTempe, AZ, United StatesHQ recorded Nov 5, 2026201-500185 contacts →

Exact match

“Vertical Communications is a leading provider of communications platforms and applications that enable critical business workflows for enterprises across a variety of industries…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Nov 5, 2026501-1,000176 contacts →

Exact match

“Jive is the leading provider of modern communication and collaboration solutions for business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 20265,001-10,000167 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchNicosia, CyprusHQ recorded Nov 5, 202651-200162 contacts →

Exact match

“3CX is the developer of an open standards communications solution which innovates business connectivity and collaboration, replacing proprietary PBXs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchClichy, FranceHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
25Exact matchZaventem, BelgiumHQ recorded Nov 5, 2026201-500134 contacts →

Exact match

“Dstny is a premier European provider of cloud-based business communications solutions.”

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

Showing 25 of 671 real-time communication software companies worldwide

See the full list, filter by size, metro and specialty, and access 6,969 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Real-time communication software companies worldwide at a glance

As of Nov 5, 2026
19.3%Verified-email coverage
53.7Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
228
11-50
245
51-200
112
201-500
40
501-1,000
20
1,001-5,000
9
5,001-10,000
4
10001+
8

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 real-time communication software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “real-time communication software 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 6,969 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.

Real-time communication software companies by location

3 lists · largest first

Every Real-time communication software companies 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 “real-time communication software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many real-time communication software companies are there worldwide?

RevenueBase identified 671 company matches for real-time communication software 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 real-time communication software companies?

The United States leads with 169 companies, followed by India (63) and the United Kingdom (48). Every real-time communication software companies list by country and city is linked on this page.

Which city has the most real-time communication software companies?

London leads with 17 company records, followed by Bangalore (10) and San Francisco (10).

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 6,969 professional contacts with verified work emails tracked across these 671 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.

Ready to reach these companies? Verified emails and direct dials for all 671 real-time communication software companies 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.