Company lists · Data refreshed September 2026

Top 25 Enterprise communication solutions providers based in Germany

Name: Enterprise communication solutions providers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 172 companies tracked

RevenueBase identified 172 company matches for enterprise communication solutions providers associated with Germany as of September 2026 and tracks 2,371 professional contacts across them, including 1,134 with verified work emails. Berlin is the largest hub.

This list covers company matches for enterprise communication solutions 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 28, 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 28, 2026 How this list was built

172Companies

2,371Contacts tracked

1,134Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest enterprise communication solutions providers based in Germany

Ranked by team size

Top 25 of 172 company matches for enterprise communication solutions providers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Nfon AG	Exact match	Munich, GermanyHQ recorded Sep 28, 2026	201-500	331 contacts →
	Exact match “Welcome to NFON’s Corporate Channel.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Retarus	Exact match	Munich, GermanyHQ recorded Sep 28, 2026	201-500	329 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 28, 2026 · View company records in RevenueBase
3	Ostertag Detewe	Exact match	Düsseldorf, GermanyHQ recorded Sep 28, 2026	201-500	153 contacts →
	Exact match “Transform your business DeTeWe Communications have many years of experience in delivering tailored, integrated solutions for their clients internationally 365 days a year, 24…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Starface Gmbh	Exact match	Karlsruhe, GermanyHQ recorded Sep 28, 2026	51-200	119 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 28, 2026 · View company records in RevenueBase
5	Innovaphone	Exact match	Sindelfingen, GermanyHQ recorded Sep 28, 2026	51-200	96 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 28, 2026 · View company records in RevenueBase
6	Enreach DE	Exact match	Bochum, GermanyHQ recorded Sep 28, 2026	1,001-5,000	75 contacts →
	Exact match “Enreach ist ein europaweit führender Anbieter von Unified-Communications- und Cloud-Contact-Center-Lösungen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	C4b COM For Business AG	Exact match	Germering, GermanyHQ recorded Sep 28, 2026	51-200	66 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 28, 2026 · View company records in RevenueBase
8	Byon Gmbh	Exact match	Frankfurt, GermanyHQ recorded Sep 28, 2026	51-200	45 contacts →
	Exact match “IT Managed Services und Cloud Telefonie 2006 wurde die byon gmbh mit Sitz in Frankfurt/Main gegründet.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Communicode Gmbh	Exact match	Essen, GermanyHQ recorded Sep 28, 2026	51-200	42 contacts →
	Exact match “As an experienced e-business service provider, we support companies in optimizing all digital business and communications processes with integrated and future-proof solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Integrated Worlds Gmbh	Exact match	Holzgerlingen, GermanyHQ recorded Sep 28, 2026	51-200	38 contacts →
	Exact match “Since the Integrated World was founded in 1996 we see ourselves as pioneers for the electronic data communication.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Termath AG	Exact match	Wolfsburg, GermanyHQ recorded Sep 28, 2026	51-200	30 contacts →
	Exact match “Die TERMATH AG liefert maßgeschneiderte Lösungen im Bereich Kommunikationssysteme, Netzwerksysteme und Sicherheitssysteme sowie Service für Gewerbe, Industrie- und Großkunden.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Bonamic Gmbh	Exact match	Bochum, GermanyHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Digitale Infrastruktur muss verlässlich, sicher und flexibel sein – ohne Umwege.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Mediasystem	Exact match	Reinbek, GermanyHQ recorded Sep 28, 2026	51-200	27 contacts →
	Exact match “Agiles Arbeiten.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	MBS Gmbh, Krefeld	Exact match	Krefeld, GermanyHQ recorded Sep 28, 2026	51-200	27 contacts →
	Exact match “Software services Consulting Communication Protocols Infrastructure Components Gateways, Routers Fieldbus Systems BACnet Since 1987 MBS provides communication solutions in…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	K-Tel Communications Gmbh	Exact match	Berlin, GermanyHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “Seit 1998 finden wir individuelle Business-Lösungen für schnelle, sichere und zuverlässige IT und Telekommunikation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Toplink Gmbh	Exact match	Darmstadt, GermanyHQ recorded Sep 28, 2026	11-50	24 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 28, 2026 · View company records in RevenueBase
17	Topcom Kommunikationssysteme Gmbh	Exact match	Düsseldorf, GermanyHQ recorded Sep 28, 2026	11-50	23 contacts →
	Exact match “We offer customized communication solutions that connect all business-critical processes with all major communications media.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Esp.Group Gmbh	Exact match	Frankfurt, GermanyHQ recorded Sep 28, 2026	51-200	23 contacts →
	Exact match “Unternehmen Wer wir sind Die ESP.GROUP Unternehmensgruppe mit Hauptsitz in Neu-Isenburg bei Frankfurt ist ein bundes- und europaweit tätiges Beratungsunternehmen für…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Caseris Gmbh	Exact match	Stolberg (rhld.), GermanyHQ recorded Sep 28, 2026	11-50	22 contacts →
	Exact match “Herzlich Willkommen bei CASERIS!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	UP Data Systems Gmbh	Exact match	Maumke, GermanyHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “UP Data Systems + INNOFACTORY = ONE TEAM Seit über 20 Jahren vertrauen Unternehmen auf UP Data Systems, wenn es um maßgeschneiderte und zukunftssichere ITK-Lösungen geht, die…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	OFF Telekommunikation Gmbh	Exact match	Börwang, GermanyHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “Die OFF Telekommunikation GmbH ist DER Partner für moderne Kommunikationslösungen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	COM Plan Service Gmbh, Viernheim	Exact match	Viernheim, GermanyHQ recorded Sep 28, 2026	51-200	19 contacts →
	Exact match “COM plan + service zählt zu den großen inhabergeführten Systemhäusern im Bereich der Informationstechnologie in Deutschland.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Sit-Solutions	Exact match	Adelsdorf, GermanyHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Your experts in information technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Lipinski Telekom Gmbh	Exact match	Berlin, GermanyHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “LIPINSKI TELEKOM ist Ihr Experte für umfassende Beratung, Planung, Installation und Betreuung von vernetzten Kommunikationslösungen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	BPV Enterprise Group	Exact match	Unna, GermanyHQ recorded Sep 28, 2026	51-200	16 contacts →
	Exact match “BPV is active in the telecommunications & IT space, providing managed services and customized solutions to companies of any scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “enterprise communication solutions providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 172 enterprise communication solutions providers based in Germany

See the full list, filter by size, metro and specialty, and access 1,134 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Enterprise communication solutions providers based in Germany at a glance

As of Sep 28, 2026

47.8%Verified-email coverage

13.8Average contacts per company

11-50Median size (employees)

10.5%Largest-city concentration · Berlin

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 172 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 “enterprise communication solutions 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 1,134 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 28, 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 “enterprise communication solutions providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise communication solutions providers are there based in Germany?

RevenueBase identified 172 company matches for enterprise communication solutions 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?

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

Which city has the most enterprise communication solutions providers?

Berlin leads with 18 company records, followed by Munich (8) and Frankfurt (5).

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 1,134 professional contacts with verified work emails tracked across these 172 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 172 enterprise communication solutions providers based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

Enterprise communication solutions providers by geography

Browse the directory

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.