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Company lists · Data verified August 2026

Top 25 Collaboration and communication software companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 556 companies tracked

There are 556 collaboration and communication software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 29,822 professional contacts across them, including 7,827 with verified work emails and 7,915 with mobile numbers. San Francisco is the largest hub.

This list covers collaboration and communication software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

556Companies
29,822Contacts tracked
7,827Verified emails
7,915Mobile numbers
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The 25 largest collaboration and communication software companies based in the United States

Ranked by team size
Top 25 of 556 collaboration and communication software companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1ZOOMOverland Park, KS5,001-10,0009,8213,598
2SLACKSan Francisco, CA1,001-5,0002,5914
3PolycomAndover, MA1,001-5,0001,78364
4Lucid SoftwareRaleigh, NC1,001-5,0001,362841
5Intermedia Intelligent CommunicationsSunnyvale, CA1,001-5,0001,251672
6AnywhereworksRaleigh, NC1,001-5,0001,10038
7MURALSan Francisco, CA501-1,000476257
8SKYPERedmond, WA10001+43764
9MomentumBrentwood, TN501-1,000432251
10WildixColumbus, OH201-500337166
11GPAGlen Ellyn, IL5,001-10,00031711
12ZOOMSan Jose, CA5,001-10,000288184
13Bluejeans By VerizonSan Jose, CA501-1,0002666
14InfocusPortland, OR51-20025712
15Interact SoftwareTulsa, OK201-500246156
16WhitlockVirginia Beach, VA1,001-5,00022555
17Vitel GlobalSouth Plainfield, NJ51-2002081
18Bitrix24Alexandria, VA501-1,0001942
19Vertical CommunicationsTempe, AZ201-50017469
20InvisionNew York, NY501-1,0001661
21Jive SoftwareAustin, TX501-1,0001651
22MattermostPalo Alto, CA51-200149104
23Smash SolutionsSouth Jordan, UT51-2001412
24OWL LabsBoston, MA51-200131102
25Panterra NetworksSan Jose, CA51-20012834

Showing 25 of 556 collaboration and communication software companies based in the United States

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Collaboration and communication software companies based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
San FranciscoLargest hub · 56 HQs
7,915Contacts with mobile numbers
30Emails re-verified in last 30 days

Companies by employee count

1-10
246
11-50
198
51-200
67
201-500
16
501-1,000
9
1,001-5,000
10
5,001-10,000
4
10001+
5

Collaboration and communication software companies by metro

MetroCompanies
Collaboration and communication software companies in San Francisco56
Collaboration and communication software companies in New York29
Collaboration and communication software companies in Austin16
Collaboration and communication software companies in Los Angeles16
Collaboration and communication software companies in Palo Alto11
Collaboration and communication software companies in San Jose10
Collaboration and communication software companies in Boston10

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “collaboration and communication software companies”, with match quality audited by blind human judging, and headquartered in the United States.
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
Contact records re-verify on a rolling cadence; 30 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many collaboration and communication software companies are there based in the United States?

There are 556 collaboration and communication software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

ZOOM, headquartered in Overland Park, tops this list with the largest team on record.

Which city has the most collaboration and communication software companies?

San Francisco leads with 56 headquartered companies, followed by New York (29) and Austin (16).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 7,827 verified decision-maker contacts tracked across these 556 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.

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