Company lists · Data refreshed November 2026

Top 25 Unified communications platforms based in Germany

RevenueBase identified 66 company matches for unified communications platforms associated with Germany as of November 2026 and tracks 746 professional contacts across them, including 292 with verified work emails. Berlin is the largest hub.

This list covers company matches for unified communications platforms 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 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
66Companies
746Contacts tracked
292Verified emails
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The 25 largest unified communications platforms based in Germany

Ranked by team size
Top 25 of 66 company matches for unified communications platforms based in Germany, 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 matchKarlsruhe, GermanyHQ recorded Nov 5, 202651-200108 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBochum, GermanyHQ recorded Nov 5, 20261,001-5,00076 contacts →

Exact match

“Enreach ist ein europaweit führender Anbieter von Unified-Communications- und Cloud-Contact-Center-Lösungen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchGermering, GermanyHQ recorded Nov 5, 202651-20060 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchReinbek, GermanyHQ recorded Nov 5, 202651-20030 contacts →

Exact match

“Agiles Arbeiten.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchStolberg (rhld.), GermanyHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“CASERIS entwickelt Software für moderne Kundenkommunikation und digitalen Kundenservice.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchDarmstadt, GermanyHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“Cloud- und On-Premise-Lösungen - Technologie verwandelt Die toplink-Gruppe etwas genauer betrachtet: toplink GmbH - die Cloud Company Bereits 2005 vermarktet die toplink GmbH die…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchKarlsruhe, GermanyHQ recorded Nov 5, 202611-5011 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchErkrath-unterfeldhaus, GermanyHQ recorded Nov 5, 202651-20010 contacts →

Exact match

“Telefonanlagen, Cloud-Telefonie, ITK, Unify Office by RingCentral, Microsoft Teams, Atos Unify, Estos, Alcatel, Mitos, Innovaphone, Unified Communications, Kollaboration…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchBraunschweig, GermanyHQ recorded Nov 5, 202611-5010 contacts →

Exact match

“UCware GmbH – Flexible Kommunikationslösungen, made in Germany.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLangenhagen, GermanyHQ recorded Nov 5, 202611-508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchBretzfeld, GermanyHQ recorded Nov 5, 202611-507 contacts →

Exact match

“Vom Internet über die Festnetz- und Mobilfunktelefonie, die Telefonanlage in der Cloud, bis zur passenden und individuellen Lösung für Ihr Unternehmen – Flexibilität, die sich…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchDortmund, GermanyHQ recorded Nov 5, 20261-107 contacts →

Exact match

“LocaNet, founded in 1996 and based in Dortmund, Germany, provides a wide range of VoIP based IT products and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact match29331 Lachendorf, GermanyHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Steffel entwickelt effiziente und zukunftsfähige Komplettlösungen für den gesamten Kommunikationsbereich – von der Vernetzung verschiedener Standorte über Unified Communications…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchAugsburg, GermanyHQ recorded Nov 5, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchKiel, GermanyHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Telefonie soll Unternehmen und Kunden dienen – und nicht umgekehrt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchClaußnitz, GermanyHQ recorded Nov 5, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchMunich, GermanyHQ recorded Nov 5, 20261-104 contacts →

Exact match

“Willkommen bei Munich Solutions, Ihrem zuverlässigen Partner für Teams & Zoom Videokonferenzen, Meetingraumausstattung, Unified Communications und Installations-Dienstleistungen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchBad Homburg, GermanyHQ recorded Nov 5, 2026201-5003 contacts →

Exact match

“Lernen Sie Nuvias UC kennen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchHildesheim, GermanyHQ recorded Nov 5, 202611-503 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 · Nov 5, 2026 · View company records in RevenueBase
20Exact matchErkrath, GermanyHQ recorded Nov 5, 2026201-5003 contacts →

Exact match

“Voiceworks entwickelt und betreibt innovative Kommunikationslösungen für Geschäftskunden.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchWürselen, GermanyHQ recorded Nov 5, 202611-503 contacts →

Exact match

“Mit unserem neuen MCA ICT Hub bieten wir unseren Kunden einen einfachen Weg, genau die richtigen Lösungen und Services zu finden, die Unternehmen benötigen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchCologne, GermanyHQ recorded Nov 5, 202611-502 contacts →

Exact match

“SMART – das Original!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchStuttgart, GermanyHQ recorded Nov 5, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchNeustadt An Der Weinstraße, GermanyHQ recorded Nov 5, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchMoorrege, GermanyHQ recorded Nov 5, 20261-102 contacts →

Exact match

“Verba-Com versteht sich als beständiger und zuverlässiger Anbieter / Partner am sich permanent verändernden IT & Bürokommunikationsmarkt.”

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

Showing 25 of 66 unified communications platforms based in Germany

See the full list, filter by size, metro and specialty, and access 292 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Unified communications platforms based in Germany at a glance

As of Nov 5, 2026
39.1%Verified-email coverage
11.3Average contacts per company
11-50Median size (employees)
7.6%Largest-city concentration · Berlin
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
30
51-200
10
201-500
4
501-1,000
1
1,001-5,000
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 66 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 “unified communications 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. 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 292 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 “unified communications platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many unified communications platforms are there based in Germany?

RevenueBase identified 66 company matches for unified communications platforms associated with Germany 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?

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

Which city has the most unified communications platforms?

Berlin leads with 5 company records, followed by Cologne (4) and Hamburg (3).

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 292 professional contacts with verified work emails tracked across these 66 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.