Company lists · Data refreshed September 2026

Top 25 Conference calling services based in the United States

RevenueBase identified 163 company matches for conference calling services associated with the United States as of September 2026 and tracks 15,263 professional contacts across them, including 4,280 with verified work emails. New York is the largest hub.

This list covers company matches for conference calling services 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 September 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 Sep 19, 2026 How this list was built
163Companies
15,263Contacts tracked
4,280Verified emails
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The 25 largest conference calling services based in the United States

Ranked by team size
Top 25 of 163 company matches for conference calling services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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 matchSan Jose, CA, United StatesHQ recorded Sep 19, 20265,001-10,0009,706 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 · Sep 19, 2026 · View company records in RevenueBase
2Exact matchAlpharetta, GA, United StatesHQ recorded Sep 19, 20261,001-5,0001,464 contacts →

Exact match

“PGi powers virtual events and meetings for customers safely and reliably, helping people, teams, and enterprises connect worldwide with advanced broadcasting and webcasting…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchAustin, TX, United StatesHQ recorded Sep 19, 2026201-500401 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Sep 19, 2026501-1,000278 contacts →

Exact match

“OpenExchange is chosen by the most demanding industries in the world as their virtual communications partner.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Sep 19, 2026501-1,000264 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 · Sep 19, 2026 · View company records in RevenueBase
6Exact matchCape Canaveral, FL, United StatesHQ recorded Sep 19, 2026n/a202 contacts →

Exact match

“Since 1987, Hello Direct has helped small and medium-sized businesses (SMBs) find the right audio and video solutions to stay connected and productive.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchPortland, OR, United StatesHQ recorded Sep 19, 202651-200139 contacts →

Exact match

“Bring the magic of television to your webinars, events, and meetings with Brandlive, your platform for creating elevated video experiences.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchRemote, United StatesHQ recorded Sep 19, 2026201-500137 contacts →

Exact match

“Airmeet - Revolutionizing Webinars and Events At Airmeet, we believe webinars should be more than just digital gatherings-they should be immersive experiences that captivate and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchMonroeville, PA, United StatesHQ recorded Sep 19, 2026201-500120 contacts →

Exact match

“Chorus Call Inc, headquartered in Pittsburgh, Pennsylvania, is a global leader in event management solutions with offices in the United States, Europe, South Africa, India…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPalo Alto, CA, United StatesHQ recorded Sep 19, 2026201-500101 contacts →

Exact match

“InstaVC provides a complete suite of Video Collaboration platforms across all industry verticals to cater to the unique requirements of each sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchPhoenix, AZ, United StatesHQ recorded Sep 19, 202651-20099 contacts →

Exact match

“Trusted by the largest global enterprises for more than 20 years in the energy, financial services, hospitality, insurance, life sciences, professional services consulting, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchNY, United StatesHQ recorded Sep 19, 2026201-50070 contacts →

Exact match

“Streamlined Communications is a leading provider of Audio Conferencing, Collaboration, Webcasting, Virtual Events & Streaming Solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchPhoenix, AZ, United StatesHQ recorded Sep 19, 2026201-50065 contacts →

Exact match

“Phoenix-based iLinc Communications, Inc, a subsidiary of BroadSoft, Inc.(NASDAQ: BSFT), provides advanced web conferencing services for businesses, governments, and educational…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchDanbury, CT, United StatesHQ recorded Sep 19, 202611-5044 contacts →

Exact match

“Connecting people is at the core of what we do.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchGlen Rock, United StatesHQ recorded Sep 19, 2026201-50043 contacts →

Exact match

“With over 25 years of expertise, InComm Conferencing delivers seamless execution of high-stakes events, from large-scale conference calls and operator-assisted meetings to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLong Beach, CA, United StatesHQ recorded Sep 19, 202651-20037 contacts →

Exact match

“Our mission is to provide a borderless platform that bridges countries and collaborators, creating a space where we can all freely connect, share and innovate, without cost and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchLemont, IL, United StatesHQ recorded Sep 19, 202611-5033 contacts →

Exact match

“GAN Conferencing is a premiere provider of conferencing services, network security, building security, and hosted VoIP phone systems worldwide at affordable prices.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchAustin, TX, United StatesHQ recorded Sep 19, 202651-20028 contacts →

Exact match

“Finding a communications services provider that cares about you and your business is rare.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchDenver, CO, United StatesHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“Customers throughout the world use MeetingOne as their one-stop source for conferencing needs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, United StatesHQ recorded Sep 19, 202611-5020 contacts →

Exact match

“Your website is your most valuable asset, it's where your brand lives, where your data belongs, and where your audience should be engaging with you.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchIndianapolis, IN, United StatesHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“TelSpan enables organizations worldwide to connect, communicate and collaborate using a variety of video, audio and web conferencing and communications solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchTampa, FL, United StatesHQ recorded Sep 19, 202611-5015 contacts →

Exact match

“GCI offers a complete spectrum of collaboration solutions that enables organizations to improve efficiency and increase productivity.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchEncino, CA, United StatesHQ recorded Sep 19, 202611-5013 contacts →

Exact match

“Internet MegaMeeting, LLC, the company behind MegaMeeting.com was established in October 2003 with the intention of making Audio and Video Conferencing via the web simple and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchMontgomery, AL, United StatesHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“Founded in 1992, Conference America, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchDallas, TX, United StatesHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“Founded in 2003, XOP Networks is a trailblazer in telecommunications, offering transformative solutions that seamlessly bridge legacy networks to cutting-edge VoIP technology.”

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

Showing 25 of 163 conference calling services based in the United States

See the full list, filter by size, metro and specialty, and access 4,280 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Conference calling services based in the United States at a glance

As of Sep 19, 2026
28.0%Verified-email coverage
93.6Average contacts per company
11-50Median size (employees)
4.9%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
73
51-200
19
201-500
10
501-1,000
5
1,001-5,000
2
5,001-10,000
3
10001+
1

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 “conference calling services” 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 4,280 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 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 “conference calling services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many conference calling services are there based in the United States?

RevenueBase identified 163 company matches for conference calling services associated with the United States 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?

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

Which city has the most conference calling services?

New York leads with 8 company records, followed by Austin (7) and San Jose (6).

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 4,280 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 September 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.