Company lists · Data refreshed September 2026

Top 25 Business communication platform providers based in Germany

RevenueBase identified 63 company matches for business communication platform providers associated with Germany as of September 2026 and tracks 3,198 professional contacts across them, including 681 with verified work emails. Berlin is the largest hub.

This list covers company matches for business communication platform providers associated with Germany, 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 27, 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 Sep 27, 2026 How this list was built
63Companies
3,198Contacts tracked
681Verified emails
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The 25 largest business communication platform providers based in Germany

Ranked by team size
Top 25 of 63 company matches for business communication platform providers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchMunich, GermanyHQ recorded Sep 27, 20265,001-10,0001,812 contacts →

Exact match

“Unify is now part of Mitel!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchMunich, GermanyHQ recorded Sep 27, 2026201-500331 contacts →

Exact match

“Welcome to NFON’s Corporate Channel.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchMunich, GermanyHQ recorded Sep 27, 2026201-500329 contacts →

Exact match

“Digital transformation is changing processes and supply chains, products and companies, entire industries and markets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchKarlsruhe, GermanyHQ recorded Sep 27, 202651-200119 contacts →

Exact match

“Mit unseren Businesskommunikationslösungen verbinden wir von STARFACE Menschen am digitalen Arbeitsplatz und gestalten ihre Kommunikation so einfach und digital wie möglich.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSindelfingen, GermanyHQ recorded Sep 27, 202651-20096 contacts →

Exact match

“innovaphone has been playing a decisive role in driving the development of IP telephony and digital transformation for more than 25 years now and is a leading European provider of…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchGermering, GermanyHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
7Exact matchStarnberg, GermanyHQ recorded Sep 27, 202651-20054 contacts →

Exact match

“estos enables easy collaboration Weiter, weiter, fertig!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchDeggendorf, GermanyHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“Founded in 1997, pascom are the PASCOM ONE Cloud Telephony solution for business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchHeidelberg, GermanyHQ recorded Sep 27, 202651-20023 contacts →

Exact match

“Sikom Software GmbH - Platform independent and flexible communication solutions”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchStolberg (rhld.), GermanyHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“Herzlich Willkommen bei CASERIS!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchMunich, GermanyHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Stackfield is an All-in-One Collaboration Tool from Germany and combines all the features teams need to collaborate: Team chat, task and project management, video conferencing…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchRegensburg, GermanyHQ recorded Sep 27, 202611-5012 contacts →

Exact match

“Mit ihrer 5F-Plattform ermöglicht die 5FSoftware GmbH aus Regensburg effiziente und übersichtliche Arbeits- und Kommunikationsprozesse für Kanzleien und Unternehmen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchDortmund, GermanyHQ recorded Sep 27, 202611-5011 contacts →

Exact match

“catkin ist ein webbasiertes Portal für die unternehmens- und systemübergreifende Kommunikation.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchKarlsruhe, GermanyHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Crown is a pioneer in cloud communications and develops highly available, scalable platform technologies for telecommunications providers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLangenhagen, GermanyHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Die Bedürfnisse unserer Kunden bei der Kommunikation haben wir immer im Blick.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchSolms, GermanyHQ recorded Sep 27, 20261-107 contacts →

Exact match

“CollideX ist die Holding und der Entwickler der CollideX Cloud Engine, welche als Integrationsplattform Kommunikation und Kollaboration mit Datenmanagement und Business-Prozessen…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchHamburg, GermanyHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Die Plattform für innovative B2B und B2C Webkonferenzen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchBerlin, GermanyHQ recorded Sep 27, 202611-507 contacts →

Exact match

“tchop™ is the first out-of-the-box platform that lets you combine content, news and a real time chat in your own branded app.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchHamburg, GermanyHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Just #loveyourwork, because Work is more than to-do lists and meetings.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchOsnabrück, GermanyHQ recorded Sep 27, 202611-506 contacts →

Exact match

“Wir sind GreenIT24!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchAugsburg, GermanyHQ recorded Sep 27, 202611-505 contacts →

Exact match

“Devenia Communications is a management consulting company based out of Bürgermeister-Wegele-Str.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchErkrath, GermanyHQ recorded Sep 27, 2026201-5005 contacts →

Exact match

“Voiceworks entwickelt und betreibt innovative Kommunikationslösungen für Geschäftskunden.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchSolingen, GermanyHQ recorded Sep 27, 202611-504 contacts →

Exact match

“Hands-on Digital.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchHildesheim, GermanyHQ recorded Sep 27, 202611-504 contacts →

Exact match

“tk]-technologies GmbH - Ihr Partner für moderne Business-Kommunikation Seit 14 Jahren gestalten wir die Zukunft der Unternehmenskommunikation – mit fundierter Expertise, höchsten…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchMünster, GermanyHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Unser Ziel ist es, durch einfache und leicht zugängliche Software die Kommunikation in Ihrem Unternehmen zu verbessern.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 63 business communication platform providers based in Germany

See the full list, filter by size, metro and specialty, and access 681 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business communication platform providers based in Germany at a glance

As of Sep 27, 2026
21.3%Verified-email coverage
50.8Average contacts per company
11-50Median size (employees)
7.9%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
34
51-200
9
201-500
5
501-1,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 63 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 Germany whose business descriptions match “business communication platform providers” 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 681 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 27, 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 “business communication platform providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business communication platform providers are there based in Germany?

RevenueBase identified 63 company matches for business communication platform providers associated with Germany 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?

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

Which city has the most business communication platform providers?

Berlin leads with 5 company records, followed by Munich (5) and Karlsruhe (4).

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 681 professional contacts with verified work emails tracked across these 63 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 27, 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.