Company lists · Data refreshed November 2026

Top 25 Enterprise messaging solutions based in the United States

RevenueBase identified 136 company matches for enterprise messaging solutions associated with the United States as of November 2026 and tracks 6,011 professional contacts across them, including 1,336 with verified work emails. San Francisco is the largest hub.

This list covers company matches for enterprise messaging solutions 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
136Companies
6,011Contacts tracked
1,336Verified emails
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The 25 largest enterprise messaging solutions based in the United States

Ranked by team size
Top 25 of 136 company matches for enterprise messaging solutions 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 matchAlpharetta, GA, United StatesHQ recorded Nov 5, 202651-200266 contacts →

Exact match

“We solve a critical gap businesses face with employee to client communication, over voice and messaging.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact matchBloomington, IL, United StatesHQ recorded Nov 5, 202611-5077 contacts →

Exact match

“Business Class Team Texting to help Sales and Service Teams!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact 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
9Exact 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
10Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“Agility is the greatest advantage in the modern marketplace.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“Hey there!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBozeman, MT, United StatesHQ recorded Nov 5, 202651-20032 contacts →

Exact match

“Quiq is a leading technology company based in Bozeman, Montana that makes it easy for people to have a conversation with a company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLehi, UT, United StatesHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“Pronto is a workplace communication app built for teams that aren't sitting at a desk.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchAmerican Fork, UT, United StatesHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“Skipio empowers businesses and teams across North America to cut out the busywork of customer communication.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchJersey City, NJ, United StatesHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“Fivewalls is an expert Slack and MS Teams apps development company aimed to enhance your business collaboration.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Voxer is a high-performance messaging app that combines the power of live voice with text, photos and videos.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchHerndon, VA, United StatesHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“SkyCreek Enterprise Communication Platform (ECP) is enabling a new level of excellence for service-centric organizations that deploy multi-channel customer communications.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchArlington Heights, MD, United StatesHQ recorded Nov 5, 2026201-50018 contacts →

Exact match

“NetSfere is a next-generation secure enterprise communication platform, delivering AI-powered, quantum-resilient messaging to safeguard mission-critical communications in an era…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchColumbus, OH, United StatesHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Accent is an award-winning provider of cloud phone system, team communication & messaging, video meetings, and cloud contact center.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“Zulip is an open-source team chat application designed for seamless remote and hybrid work.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, United StatesHQ recorded Nov 5, 20261-1014 contacts →

Exact match

“Orchestra is a chat-centric workspace with built-in work tools.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchRockaway, NJ, United StatesHQ recorded Nov 5, 202611-5013 contacts →

Exact match

“Avada Software builds, sells and supports Infrared360, a comprehensive J2EE compliant Enterprise Messaging management and monitoring portal enabling secure, delegated access to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchTampa, FL, United StatesHQ recorded Nov 5, 202611-5013 contacts →

Exact match

“Welcome to Mobex!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchMiami, United StatesHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“AceMQ consulting is a firm built on delivering excellence on all Messaging and Queuing Solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Transend Corporation, headquartered in the heart of California’s Silicon Valley, provides industry leading solutions to architect, implement, migrate and extend enterprise…”

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

Showing 25 of 136 enterprise messaging solutions based in the United States

See the full list, filter by size, metro and specialty, and access 1,336 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise messaging solutions based in the United States at a glance

As of Nov 5, 2026
22.2%Verified-email coverage
44.2Average contacts per company
11-50Median size (employees)
10.3%Largest-city concentration · San Francisco
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
61
51-200
18
201-500
5
501-1,000
1
1,001-5,000
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 136 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 “enterprise messaging solutions” 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 1,336 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.

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 “enterprise messaging solutions”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise messaging solutions are there based in the United States?

RevenueBase identified 136 company matches for enterprise messaging solutions 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 enterprise messaging solutions?

San Francisco leads with 14 company records, followed by New York (5) and Sunnyvale (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 1,336 professional contacts with verified work emails tracked across these 136 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.