Company lists · Data refreshed September 2026

Top 25 Workplace messaging platforms worldwide

RevenueBase identified 1,057 company matches for workplace messaging platforms worldwide as of September 2026 and tracks 17,446 professional contacts across them, including 4,254 with verified work emails. The United States is the largest market and San Francisco the largest hub.

This list covers company matches for workplace messaging platforms worldwide, 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 29, 2026. Country and city lists for workplace messaging platforms follow the table.

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 29, 2026 How this list was built
1,057Companies
17,446Contacts tracked
4,254Verified emails
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The 25 largest workplace messaging platforms worldwide

Ranked by team size
Top 25 of 1,057 company matches for workplace messaging platforms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 Sep 29, 20261,001-5,0002,619 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 · Sep 29, 2026 · View company records in RevenueBase
2Exact matchChemnitz, GermanyHQ recorded Sep 29, 2026501-1,000859 contacts →

Exact match

“Staffbase is the first AI-native Employee Experience Platform, equipping many of the world’s leading companies with solutions to inspire every employee with motivating…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchNY, United StatesHQ recorded Sep 29, 2026n/a827 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLuxembourgHQ recorded Sep 29, 2026201-500716 contacts →

Exact match

“Rakuten Viber is one of the most trusted and downloaded apps in the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, United StatesHQ recorded Sep 29, 2026501-1,000511 contacts →

Exact match

“At Humand, we empower companies to digitize their internal communication, culture, and HR processes in one unified platform, recognizing that the future of mid market and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchTampa, FL, United StatesHQ recorded Sep 29, 2026201-500460 contacts →

Exact match

“Connect your people, places, and spaces.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchOmaha, NE, United StatesHQ recorded Sep 29, 202651-200447 contacts →

Exact match

“Workshop is a modern, purpose-built internal communications platform that helps teams create, send, manage, and measure employee communications in one place, starting with email…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchTassin, FranceHQ recorded Sep 29, 2026501-1,000400 contacts →

Exact match

“LumApps is the AI Employee Hub where work comes together.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchBangalore, IndiaHQ recorded Sep 29, 2026201-500271 contacts →

Exact match

“Enrich Money is a reputable company in the Wealth-Tech sector, offering a comprehensive investment and trading platform named ORCA that is accessible through both web and mobile…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026201-500270 contacts →

Exact match

“The Firstup Intelligent Communication Platform equips organizations to improve productivity, retention, labor efficiency, safety compliance, and revenue performance by activating…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchAlpharetta, GA, United StatesHQ recorded Sep 29, 202651-200237 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 · Sep 29, 2026 · View company records in RevenueBase
12Exact matchHamburg, GermanyHQ recorded Sep 29, 2026201-500230 contacts →

Exact match

“Haiilo is a digital home for employees, bringing together social intranet, internal communications, advocacy, and insights in one easy-to-use platform.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchSouth Plainfield, NJ, United StatesHQ recorded Sep 29, 202651-200212 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202651-200179 contacts →

Exact match

“LeapXpert is the leader in Responsible Business Communication.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Sep 29, 2026201-500174 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,000168 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchSingaporeHQ recorded Sep 29, 20261,001-5,000166 contacts →

Exact match

“Lark is a new take on the office suite that is transforming workplace collaboration.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 202651-200146 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 · Sep 29, 2026 · View company records in RevenueBase
19Exact matchGhanaHQ recorded Sep 29, 20261,001-5,000145 contacts →

Exact match

“Bringing all employees together through one common medium.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchUnited StatesHQ recorded Sep 29, 20261,001-5,000139 contacts →

Exact match

“MAXHUB is a global provider of integrated collaboration solutions, designed to make communication and teamwork more efficient across modern workplaces.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchParis, FranceHQ recorded Sep 29, 202651-200114 contacts →

Exact match

“Sociabble, a Poppulo company, helps companies turn their employees into an informed, engaged, and influential workforce.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchUnited StatesHQ recorded Sep 29, 202651-200110 contacts →

Exact match

“Doist is a global pioneer of distributed work, building simple yet powerful tools that help people unlock their full potential.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchParis, FranceHQ recorded Sep 29, 202651-200107 contacts →

Exact match

“eXo Platform is a comprehensive Digital Workplace solution that stands out by its ease of use and its innovative employee engagement features.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 29, 2026501-1,000103 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 · Sep 29, 2026 · View company records in RevenueBase
25Exact match渋谷区, JapanHQ recorded Sep 29, 202651-200100 contacts →

Exact match

“The business version of LINE, LINE WORKS, is a communication solution with features that meet every business need including Message, Calendar, Board, and video conferencing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 1,057 workplace messaging platforms worldwide

See the full list, filter by size, metro and specialty, and access 4,254 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Workplace messaging platforms worldwide at a glance

As of Sep 29, 2026
24.4%Verified-email coverage
16.5Average contacts per company
11-50Median size (employees)
3.9%Largest-city concentration · San Francisco
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
495
11-50
406
51-200
97
201-500
37
501-1,000
10
1,001-5,000
8
5,001-10,000
1
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for workplace messaging platforms are linked below.
What qualifies
Company records worldwide whose business descriptions match “workplace messaging platforms” 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. 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 4,254 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 29, 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.

Workplace messaging platforms by location

9 lists · largest first

Every Workplace messaging platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many workplace messaging platforms are there worldwide?

RevenueBase identified 1,057 company matches for workplace messaging platforms worldwide 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?

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

Which country has the most workplace messaging platforms?

The United States leads with 261 companies, followed by India (76) and the United Kingdom (70). Every workplace messaging platforms list by country and city is linked on this page.

Which city has the most workplace messaging platforms?

San Francisco leads with 41 company records, followed by London (37) and New York (22).

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 4,254 professional contacts with verified work emails tracked across these 1,057 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 29, 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.