Company lists · Data refreshed November 2026

Top 25 Team communication software companies based in the United States

RevenueBase identified 331 company matches for team communication software companies associated with the United States as of November 2026 and tracks 32,211 professional contacts across them, including 13,193 with verified work emails. San Francisco is the largest hub.

This list covers company matches for team communication software companies 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 November 5, 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 Nov 5, 2026 How this list was built
331Companies
32,211Contacts tracked
13,193Verified emails
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The 25 largest team communication software companies based in the United States

Ranked by team size
Top 25 of 331 company matches for team communication software companies based in the United States, 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 Francisco, CA, United StatesHQ recorded Nov 5, 20261,001-5,0002,639 contacts →

Exact match

“Slack is on a mission to make people's working lives simpler, more pleasant and more productive.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchRaleigh, NC, United StatesHQ recorded Nov 5, 20261,001-5,0001,223 contacts →

Exact match

“There is a better way to work.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNY, United StatesHQ recorded Nov 5, 2026n/a919 contacts →

Exact match

“Café helps enterprises drive collaboration, engagement, and cohesion through real-world interactions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchTampa, FL, United StatesHQ recorded Nov 5, 2026201-500484 contacts →

Exact match

“Connect your people, places, and spaces.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchPortland, OR, United StatesHQ recorded Nov 5, 202651-200306 contacts →

Exact match

“InFocus makes connecting people and ideas easy, reliable and affordable.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBreukelen, MN, United StatesHQ recorded Nov 5, 20265,001-10,000284 contacts →

Exact match

“GPA features the best-of-breed Regional Business Units (RBUs) in 50 countries, with localized delivery capabilities in over 150+ cities globally.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchRichmond, VA, United StatesHQ recorded Nov 5, 20261,001-5,000240 contacts →

Exact match

“Whitlock has merged with AVI-SPL to provide digital workplace technology and services to organizations locally and around the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact matchPalo Alto, CA, United StatesHQ recorded Nov 5, 202651-200151 contacts →

Exact match

“Mattermost is the leading collaboration platform for mission-critical work.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000151 contacts →

Exact match

“InVision is the visual collaboration platform powering the world’s smartest companies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-200144 contacts →

Exact match

“We're bringing video messaging to work and empowering everyone to communicate more effectively, wherever they are.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 202651-200134 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 · Nov 5, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202611-50114 contacts →

Exact match

“Nifty helps teams' simplify their workflow by consolidating team communication, project management, and client collaboration into one easy, fun, and efficient tool.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202611-5077 contacts →

Exact match

“Mio is a secure middleware that unlocks cross-platform messaging, file sharing, and meeting initiation for enterprise organizations that use Google Workspace and Microsoft 365…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-20063 contacts →

Exact match

“Swit is every team's work hub that consolidates collaboration essentials in one place - task, chat, goals, approvals, and integrations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Zenzap gives you AI agents that automate work across your tools and teams, all in one intuitive chat interface.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchCharlotte, NC, United StatesHQ recorded Nov 5, 202611-5054 contacts →

Exact match

“T1V is a visual collaboration software company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchHttps://www.gather.town/, United StatesHQ recorded Nov 5, 202611-5050 contacts →

Exact match

“Gather is a virtual office where remote teams can meet, chat, and interact like they’re in person.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202651-20048 contacts →

Exact match

“Axero provides easy-to-use intranet software that boosts productivity, unifies your people, and helps your company thrive.”

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

Showing 25 of 331 team communication software companies based in the United States

See the full list, filter by size, metro and specialty, and access 13,193 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Team communication software companies based in the United States at a glance

As of Nov 5, 2026
41.0%Verified-email coverage
97.3Average contacts per company
11-50Median size (employees)
14.2%Largest-city concentration · San Francisco
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
138
11-50
128
51-200
34
201-500
12
501-1,000
4
1,001-5,000
6
5,001-10,000
3
10001+
5

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 331 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 “team 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. 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 13,193 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.

Team communication software companies by metro

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

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

RevenueBase identified 331 company matches for team communication software companies associated with the United States 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?

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

Which city has the most team communication software companies?

San Francisco leads with 47 company records, followed by New York (22) and Austin (9).

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 13,193 professional contacts with verified work emails tracked across these 331 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.