Company lists · Data refreshed November 2026

Top 25 Phone system providers for businesses based in Germany

RevenueBase identified 111 company matches for phone system providers for businesses associated with Germany as of November 2026 and tracks 584 professional contacts across them, including 193 with verified work emails. Berlin is the largest hub.

This list covers company matches for phone system providers for businesses 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 6, 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 6, 2026 How this list was built
111Companies
584Contacts tracked
193Verified emails
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The 25 largest phone system providers for businesses based in Germany

Ranked by team size
Top 25 of 111 company matches for phone system providers for businesses based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchCologne, GermanyHQ recorded Nov 6, 202651-20064 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-50037 contacts →

Exact match

“Das Büro der Zukunft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchKölln-reisiek, GermanyHQ recorded Nov 6, 202611-5036 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDarmstadt, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
5Exact matchBörwang, GermanyHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Die OFF Telekommunikation GmbH ist DER Partner für moderne Kommunikationslösungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHerrsching Am Ammersee, GermanyHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Wir sind speziell ausgebildete Dienstleister und Berater für Business-Telekommunikation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGoldbach, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“We offer advantages of modern telephone systems and cloud solutions as well as access to landline network and internet, all from one source.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchFriedrichsdorf, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“WIR VERBINDEN BUSINESS TEAMS!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Ob kleines Büro oder Mittelstand Unternehmen jeder Größe profitieren von unseren innovativen Kommunikationslösungen, die den unterschiedlichen Anforderungen optimal angepasst und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMünster, GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“o-byte.com ist ein mittelständisches ITK-Systemhaus aus der Fahrradstadt Münster mit Standorten in Köln und Lüdenscheid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLangenhagen, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchStuttgart, GermanyHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Comconic ist seit 1996 im liberalisierten Markt der ITK tätig und verfügt daher als Partner nahezu aller namhaften Anbieter von Sprach- & Datenkommunikation über eine große…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCologne, GermanyHQ recorded Nov 6, 202611-507 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBretzfeld, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
15Exact matchDortmund, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
16Exact matchMalsch, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Bechler Kommunikationstechnik GmbH – Ihre Experten für moderne Kommunikationslösungen Wir sind Spezialisten für zukunftssichere Kommunikationstechnik und bieten Unternehmen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAugsburg, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
18Exact matchKiel, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchClaußnitz, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBerlin, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Kompetenz verbindet – willkommen bei moonsystems, Ihrem Berliner IT-Systemhaus für maßgeschneiderte Lösungen für Telefonie, IT-Systeme und Konferenztechnik.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarburg An Der Lahn, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“TK-Systemhaus seit 1991 Unser Ziel ist es, Kommunikationslösungen für Unternehmen bereit zu stellen, die einen echten Mehrwert bringen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDetmold, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“IT und TK Solutions aus der Cloud”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHartmannsdorf B. Eisenberg, GermanyHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMünchen / Grasbrunn, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“INTERPORT REAL GmbH, gegründet in 2002, ist ein inhabergeführtes Unternehmen mit Stammsitz in Grasbrunn bei München und Standorten in Berlin, Leipzig und Frankfurt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSchmölln, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Ihr Business Partner für Telekommunikation seit 2005!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 111 phone system providers for businesses based in Germany

See the full list, filter by size, metro and specialty, and access 193 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone system providers for businesses based in Germany at a glance

As of Nov 6, 2026
33.0%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
9.0%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
36
51-200
4
201-500
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 111 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 “phone system providers for businesses” 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 193 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 6, 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 “phone system providers for businesses”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many phone system providers for businesses are there based in Germany?

RevenueBase identified 111 company matches for phone system providers for businesses 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?

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

Which city has the most phone system providers for businesses?

Berlin leads with 10 company records, followed by Munich (5) and Hamburg (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 193 professional contacts with verified work emails tracked across these 111 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 6, 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.