Company lists · Data refreshed September 2026

Top 19 Business voip software companies based in Germany

RevenueBase identified 44 company matches for business voip software companies associated with Germany as of September 2026 and tracks 379 professional contacts across them, including 129 with verified work emails. Berlin is the largest hub.

This list covers company matches for business voip software companies 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
44Companies
379Contacts tracked
129Verified emails
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The 19 largest business voip software companies based in Germany

Ranked by team size
Top 19 of 44 company matches for business voip software companies 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 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
2Exact matchCologne, GermanyHQ recorded Sep 27, 202651-20055 contacts →

Exact match

“Placetel ist in Deutschland einer der führenden Anbieter von professionellen Telefonanlagen aus der Cloud und ein Dienst der Gamma Placetel GmbH.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchKölln-reisiek, GermanyHQ recorded Sep 27, 202611-5031 contacts →

Exact match

“comdesk ist ein deutsches Unternehmen für cloudbasierte Business-Kommunikation mit Sitz in Kölln-Reisiek.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchDarmstadt, GermanyHQ recorded Sep 27, 202611-5024 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 · Sep 27, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchBerlin, GermanyHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“Seit 2005 bietet reventix innovative Cloud-Telefonie für Unternehmen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBraunschweig, GermanyHQ recorded Sep 27, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchCologne, GermanyHQ recorded Sep 27, 202611-508 contacts →

Exact match

“Die fonial GmbH, ein Tochterunternehmen der EnBW, wurde 2014 in Köln als Anbieter einer virtuellen Telefonanlage gegründet.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchDortmund, GermanyHQ recorded Sep 27, 20261-106 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 · Sep 27, 2026 · View company records in RevenueBase
11Exact matchKiel, GermanyHQ recorded Sep 27, 20261-105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchHalberstadt, GermanyHQ recorded Sep 27, 202651-2003 contacts →

Exact match

“colima manufactures particularly easy to use software products - especially for Microsoft Skype for Business & Teams.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchBerlin, GermanyHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Vodia Networks Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchMunich, GermanyHQ recorded Sep 27, 20261-102 contacts →

Exact match

“Hi, wir sind CX Labs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchMemmingen, GermanyHQ recorded Sep 27, 20261-102 contacts →

Exact match

“Team VS GmbH is a company based out of Ob.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMoorrege, GermanyHQ recorded Sep 27, 20261-101 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 · Sep 27, 2026 · View company records in RevenueBase
18Exact matchDarmstadt, GermanyHQ recorded Sep 27, 20261-101 contacts →

Exact match

“VoIP Telefonie und UC & C Lösungen inklusive Videokonferenz, Chat, Screen-Sharing und Datenübertragung direkt über Ihre Webseite On Premise Desktops im Home Office mit Parallels…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchDeggendorf, GermanyHQ recorded Sep 27, 20261-101 contacts →

Exact match

Recorded description not available.

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

Showing 19 of 44 business voip software companies based in Germany

See the full list, filter by size, metro and specialty, and access 129 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business voip software companies based in Germany at a glance

As of Sep 27, 2026
34.0%Verified-email coverage
8.6Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
18
51-200
3
201-500
2

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 44 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 voip 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. 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 129 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 voip software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business voip software companies are there based in Germany?

RevenueBase identified 44 company matches for business voip software companies 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?

C4b COM For Business AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most business voip software companies?

Berlin leads with 3 company records, followed by Darmstadt (3) and Cologne (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 129 professional contacts with verified work emails tracked across these 44 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.