Company lists · Data refreshed October 2026

Top 25 Desktop communications software suppliers based in the United States

RevenueBase identified 163 company matches for desktop communications software suppliers associated with the United States as of October 2026 and tracks 39,260 professional contacts across them, including 11,615 with verified work emails. San Jose is the largest hub.

This list covers company matches for desktop communications software suppliers associated with the United States, 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 19, 2026.

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 19, 2026 How this list was built
163Companies
39,260Contacts tracked
11,615Verified emails
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The 25 largest desktop communications software suppliers based in the United States

Ranked by team size
Top 25 of 163 company matches for desktop communications software suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchMorristown, NJ, United StatesHQ recorded Oct 19, 20265,001-10,00011,012 contacts →

Exact match

“At Avaya, we give our customers the freedom to take their business in the directions that benefit them most.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact matchSan Jose, CA, United StatesHQ recorded Oct 19, 20265,001-10,0009,834 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 · Oct 19, 2026 · View company records in RevenueBase
3Exact matchBelmont, CA, United StatesHQ recorded Oct 19, 20265,001-10,0006,655 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 · Oct 19, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Oct 19, 20261,001-5,0002,365 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 19, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Oct 19, 20261,001-5,0001,894 contacts →

Exact match

“Plantronics and Polycom are now Poly.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchSunnyvale, CA, United StatesHQ recorded Oct 19, 20261,001-5,0001,369 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 19, 2026 · View company records in RevenueBase
7Exact matchSunnyvale, CA, United StatesHQ recorded Oct 19, 2026501-1,000636 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 19, 2026 · View company records in RevenueBase
8Exact matchRedmond, WA, United StatesHQ recorded Oct 19, 202610001+436 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 · Oct 19, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Oct 19, 2026201-500415 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 19, 2026 · View company records in RevenueBase
10Exact matchAustin, TX, United StatesHQ recorded Oct 19, 2026201-500412 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchSan Jose, CA, United StatesHQ recorded Oct 19, 2026501-1,000267 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 · Oct 19, 2026 · View company records in RevenueBase
12Exact matchGaithersburg, MD, United StatesHQ recorded Oct 19, 20261,001-5,000246 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 · Oct 19, 2026 · View company records in RevenueBase
13Exact matchSouth Jordan, UT, United StatesHQ recorded Oct 19, 2026201-500241 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 19, 2026 · View company records in RevenueBase
14Exact matchSouth Plainfield, NJ, United StatesHQ recorded Oct 19, 202651-200205 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchTempe, AZ, United StatesHQ recorded Oct 19, 2026201-500177 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 · Oct 19, 2026 · View company records in RevenueBase
16Exact matchAustin, TX, United StatesHQ recorded Oct 19, 2026201-500143 contacts →

Exact match

“Lifesize, Inc, recently acquired by Enghouse Systems is now part of the Enghouse Interactive Management Group.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Oct 19, 202651-200141 contacts →

Exact match

“Revolutionizing the way the world works Creators of the award-winning Meeting Owl”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchSan Jose, CA, United StatesHQ recorded Oct 19, 202651-200131 contacts →

Exact match

“PanTerra is a business-class Unified Cloud Service Provider, seamlessly delivering unified communications, team collaboration, call center, file sync & share, and business…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchSarasota, FL, United StatesHQ recorded Oct 19, 2026201-500103 contacts →

Exact match

“Founded in 2006 in Sarasota, Florida, Star2Star Communications delivers the World's Leading Hybrid Cloud Communications Solution.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Oct 19, 2026501-1,00099 contacts →

Exact match

“Fuze is a global cloud communications and collaboration software platform for the enterprise that was acquired by 8x8.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchHackensack, NJ, United StatesHQ recorded Oct 19, 2026201-50085 contacts →

Exact match

“Named a Leader and Visionary by Gartner, Vidyo has been awarded more than 170 video communications technology patents.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchLouisville, KY, United StatesHQ recorded Oct 19, 2026n/a57 contacts →

Exact match

“West IP Communications, a wholly owned subsidiary of West Corporation, is a leading provider of cloud-based communications for the enterprise - including MPLS-based application…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Oct 19, 202611-5054 contacts →

Exact match

“We are thought leaders in voice, collaboration & total experience technologies.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchVentura, CA, United StatesHQ recorded Oct 19, 202611-5041 contacts →

Exact match

“Gsolutionz is an Award-Winning Unified Communications and Collaboration Services Provider.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchSanta Barbara, CA, United StatesHQ recorded Oct 19, 202651-20037 contacts →

Exact match

“D2 is the market leader in software platforms that power IP communications equipment and mobile phone.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 163 desktop communications software suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 11,615 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Desktop communications software suppliers based in the United States at a glance

As of Oct 19, 2026
29.6%Verified-email coverage
240.9Average contacts per company
11-50Median size (employees)
5.5%Largest-city concentration · San Jose
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
58
51-200
31
201-500
15
501-1,000
5
1,001-5,000
4
5,001-10,000
5
10001+
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 163 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “desktop communications software suppliers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 11,615 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 19, 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.

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 “desktop communications software suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many desktop communications software suppliers are there based in the United States?

RevenueBase identified 163 company matches for desktop communications software suppliers associated with the United States 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?

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

Which city has the most desktop communications software suppliers?

San Jose leads with 9 company records, followed by Boston (5) and Dallas (5).

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 11,615 professional contacts with verified work emails tracked across these 163 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 19, 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.