Company lists · Data refreshed September 2026
Top 25 Employee communications platforms worldwide
RevenueBase identified 1,779 employee communications platforms worldwide as of September 2026 and tracks 51,495 professional contacts across them, including 19,212 with verified work emails. The United States is the largest market and London the largest hub.
This list covers employee communications platforms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for employee communications platforms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest employee communications platforms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 18,878 contacts → | ||||
Indirect evidence “Atlassian powers the collaboration that helps teams accomplish what would otherwise be impossible alone.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,619 contacts → | ||||
Indirect evidence “Slack is on a mission to make people's working lives simpler, more pleasant and more productive.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,103 contacts → | ||||
Indirect evidence “There is a better way to work.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 859 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 827 contacts → | ||||
Indirect evidence “Café helps enterprises drive collaboration, engagement, and cohesion through real-world interactions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 756 contacts → | ||||
Indirect evidence “FULL Creative is a Portland-based product company with offices in India (Chennai), Canada (Toronto) and the United Kingdom (Edinburgh).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 512 contacts → | ||||
Strong evidence “Simpplr is the AI-powered employee experience (EX) unification platform that brings engagement and productivity together in one intelligent, intuitive experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 511 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 460 contacts → | ||||
Indirect evidence “Connect your people, places, and spaces.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 447 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 408 contacts → | ||||
Indirect evidence “OAAI12 17“”e-cologye-officeOAeteamse-mobile Weaver was founded in 2001 and headquartered in Shanghai.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 400 contacts → | ||||
Partial evidence “LumApps is the AI Employee Hub where work comes together.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 394 contacts → | ||||
Strong evidence “Workvivo is an employee experience platform (EXP) that simplifies communication and increases engagement by empowering employees to be heard and helping everyone to feel included…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 348 contacts → | ||||
Indirect evidence “At Cybozu, our mission is to build a society brimming with teamwork.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 326 contacts → | ||||
Partial evidence “MyOffice offers secure office solutions for communications and teamwork.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 316 contacts → | ||||
Indirect evidence “GPA features the best-of-breed Regional Business Units (RBUs) in 50 countries, with localized delivery capabilities in over 150+ cities globally.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 274 contacts → | ||||
Partial evidence “Imagine your company is an 8-person rowing team and every employee is a rower.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 270 contacts → | ||||
Strong evidence “The Firstup Intelligent Communication Platform equips organizations to improve productivity, retention, labor efficiency, safety compliance, and revenue performance by activating…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 251 contacts → | ||||
Partial evidence “Interact delivers enterprise-grade intranet software to over customers and millions of employees worldwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 237 contacts → | ||||
Strong evidence “We solve a critical gap businesses face with employee to client communication, over voice and messaging.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 230 contacts → | ||||
Strong evidence “Haiilo is a digital home for employees, bringing together social intranet, internal communications, advocacy, and insights in one easy-to-use platform.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 226 contacts → | ||||
Indirect evidence “Whitlock has merged with AVI-SPL to provide digital workplace technology and services to organizations locally and around the world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 198 contacts → | ||||
Indirect evidence “Your all-in-one workspace for growth.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 182 contacts → | ||||
Strong evidence “ChangeEngine is the AI-powered employee experience orchestration platform that redefines how People teams design, launch, and scale employee programs across the entire employee…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 173 contacts → | ||||
Strong evidence “GOintegro is Latin America’s leading HR SaaS platform, built to connect, inspire, and support every employee.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: employee communications platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names employee communications platforms.
- Partial evidence
- Its own public description names part of employee communications platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name employee communications platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,779 employee communications platforms worldwide
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Employee communications platforms worldwide at a glance
As of Sep 28, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among employee communications platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for employee communications platforms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “employee communications platforms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names employee communications platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among employee communications platforms, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 19,212 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Employee communications platforms by location
15 lists · largest firstEvery Employee communications platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Employee communications platforms based in the United States436
- Employee communications platforms based in the United Kingdom119
- Employee communications platforms based in India105
- Employee communications platforms based in France82
- Employee communications platforms based in Brazil77
- Employee communications platforms based in Germany73
- Employee communications platforms based in the Netherlands48
- Employee communications platforms based in Canada42
- Employee communications platforms based in Australia29
- Employee communications platforms based in Spain28
Cities
- Employee communications platforms based in London, United Kingdom53
- Employee communications platforms based in San Francisco, United States48
- Employee communications platforms based in Paris, France32
- Employee communications platforms based in New York, United States29
- Employee communications platforms based in Sao Paulo, Brazil25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names employee communications platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many employee communications platforms are there worldwide?
RevenueBase identified 1,779 employee communications platforms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Atlassian, headquartered in Sydney, tops this list with the largest team on record.
Which country has the most employee communications platforms?
The United States leads with 436 companies, followed by the United Kingdom (119) and India (105). Every employee communications platforms list by country and city is linked on this page.
Which city has the most employee communications platforms?
London leads with 55 headquartered companies, followed by San Francisco (48) and Paris (32).
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 19,212 verified decision-maker contacts tracked across these 1,779 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.