Company lists · Data refreshed October 2026

Top 25 Internal communication software companies worldwide

RevenueBase identified 585 company matches for internal communication software companies worldwide as of October 2026 and tracks 28,541 professional contacts across them, including 13,525 with verified work emails. The United States is the largest market and San Francisco the largest hub.

This list covers company matches for internal communication software companies 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 October 1, 2026. Country and city lists for internal communication software companies 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 Oct 1, 2026 How this list was built
585Companies
28,541Contacts tracked
13,525Verified emails
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The 25 largest internal communication software companies worldwide

Ranked by team size
Top 25 of 585 company matches for internal communication software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 matchSydney, TürkiyeHQ recorded Oct 1, 202610001+18,878 contacts →

Exact match

“Atlassian powers the collaboration that helps teams accomplish what would otherwise be impossible alone.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
3Exact matchChemnitz, GermanyHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
5Exact matchOmaha, NE, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
6Exact matchBreukelen, United StatesHQ recorded Oct 1, 20265,001-10,000316 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 · Oct 1, 2026 · View company records in RevenueBase
7Exact matchManchester, United KingdomHQ recorded Oct 1, 2026201-500251 contacts →

Exact match

“Interact delivers enterprise-grade intranet software to over customers and millions of employees worldwide.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Oct 1, 2026501-1,000164 contacts →

Exact match

“Jive is the leading provider of modern communication and collaboration solutions for business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 2026n/a153 contacts →

Exact match

“With TextExpander, created by Smile, you can communicate smarter.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchSouth Jordan, UT, United StatesHQ recorded Oct 1, 202651-200141 contacts →

Exact match

“Smash is solution that integrates the latest innovative technological components into accessible, all-inclusive solutions that bridge each aspect of professional and personal…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchParis, FranceHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
12Exact matchToronto, ON, CanadaHQ recorded Oct 1, 202651-200100 contacts →

Exact match

“ContactMonkey is an internal email software that integrates with Outlook, Gmail, Microsoft Teams, HRIS, and SMS, allowing communicators to create and send engaging employee emails…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact match渋谷区, JapanHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
14Exact matchScotts Valley, CA, United StatesHQ recorded Oct 1, 202651-20089 contacts →

Exact match

“ROI Communication is a 100% employee-owned internal communications company focused on helping the world’s leading businesses achieve their very best through inspired employee…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchUberaba, BrazilHQ recorded Oct 1, 202651-20087 contacts →

Exact match

“SULTS has everything you need to manage communication, engage your employees, ensure the quality of your business, increase productivity and manage all day-to-day activities.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchArlington, VA, United StatesHQ recorded Oct 1, 202651-20078 contacts →

Exact match

“Axios HQ is the first internal communications management platform to equip organizations with the tools, data, and best practices to be world-class communicators.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchGermering, GermanyHQ recorded Oct 1, 202651-20066 contacts →

Exact match

“With over a million installed licenses, C4B Com For Business AG is a market leader in CTI and Unified Communications software.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchAntwerp, BelgiumHQ recorded Oct 1, 202651-20063 contacts →

Exact match

“Samenwerken in organisaties neemt steeds complexere vormen aan: telefoneren, e-mailen, documenten delen, informatie classificeren, voortgang rapporteren, transparant werken.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Oct 1, 202651-20063 contacts →

Exact match

“In 2024, LiveTiles joined forces with Omnia, an award-winning intranet solution that significantly improves employee engagement.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchNew Delhi, IndiaHQ recorded Oct 1, 202651-20061 contacts →

Exact match

“Messaging apps particularly Whatsapp has taken our personal and work life conversations by a storm.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchSao Paulo, BrazilHQ recorded Oct 1, 202651-20059 contacts →

Exact match

“Somos a Dialog, plataforma líder em comunicação interna no Brasil.> 2º lugar na categoria ScaleUp no ranking de Engajamento, Performance e Cultura do 100 Open Startups 2024, sendo…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchEsteio, BrazilHQ recorded Oct 1, 202611-5052 contacts →

Exact match

“A Pix Midia desenvolve soluções para comunicação interna, para empresas que desejam otimizar a distribuição de informação numa realidade em que o tempo é escasso.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
24Exact matchVersailles, FranceHQ recorded Oct 1, 202651-20046 contacts →

Exact match

“Pomelo-Paradigm is an innovative company that designs applications with strong collaborative potential.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchChandigarh, IndiaHQ recorded Oct 1, 202611-5044 contacts →

Exact match

“At SDP Labs we build web based apps that brings people together to collaborate and communicate effectively.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 585 internal communication software companies worldwide

See the full list, filter by size, metro and specialty, and access 13,525 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Internal communication software companies worldwide at a glance

As of Oct 1, 2026
47.4%Verified-email coverage
48.8Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · San Francisco
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
277
11-50
230
51-200
57
201-500
12
501-1,000
3
1,001-5,000
2
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 internal communication software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “internal 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. 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 13,525 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 October 1, 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.

Internal communication software companies by location

5 lists · largest first

Every Internal communication software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many internal communication software companies are there worldwide?

RevenueBase identified 585 company matches for internal communication software companies worldwide as of October 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?

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

Which country has the most internal communication software companies?

The United States leads with 115 companies, followed by the United Kingdom (41) and Brazil (37). Every internal communication software companies list by country and city is linked on this page.

Which city has the most internal communication software companies?

San Francisco leads with 16 company records, followed by London (15) and Sao Paulo (13).

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 13,525 professional contacts with verified work emails tracked across these 585 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 October 1, 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.