Company lists · Data verified August 2026

Top 20 Enterprise communication platform providers based in Germany

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 40 companies tracked

There are 40 enterprise communication platform providers headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,203 professional contacts across them, including 149 with verified work emails and 227 with mobile numbers. Berlin is the largest hub.

This list covers enterprise communication platform providers headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

40Companies

2,203Contacts tracked

149Verified emails

227Mobile numbers

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The 20 largest enterprise communication platform providers based in Germany

Ranked by team size

Top 20 of 40 enterprise communication platform providers based in Germany, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	UNIFY	Munich	5,001-10,000	1,808	3
2	Innovaphone	Langenhagen	51-200	97	64
3	C4b COM For Business AG	Germering	51-200	65	12
4	Sikom Software Gmbh	Heidelberg	51-200	24	12
5	Caseris Gmbh	Stolberg Rhld.	51-200	21	17
6	Stackfield	Munchen	11-50	17	1
7	Starleaf	Hamburg	201-500	14	9
8	Voigtmann Gmbh	Nuremberg	11-50	10	6
9	Crown Communications Gmbh	Karlsruhe	11-50	10	2
10	Just Software AG	Hamburg	11-50	8	1
11	BFW Kommunikationssysteme Gmbh	Langenhagen	11-50	7	5
12	Collidex Gmbh	Solms	1-10	7	3
13	Greenit24 Gmbh	Osnabruck	11-50	6	3
14	Conference-Tv	Hamburg	51-200	4	3
15	TK -Technologies Gmbh	Hildesheim	11-50	4	3
16	Kwebbl DE	Berlin	51-200	1	1
17	Pascom Netzwerktechnik	Deggendorf	1-10	1	1
18	Connexio Gmbh	Darmstadt	1-10	1	1
19	Horizon44 Gmbh	Munchen	1-10	1	1
20	Verba-Com	Moorrege	1-10	1	1

Showing 20 of 40 enterprise communication platform providers based in Germany

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Enterprise communication platform providers based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 5 HQs

227Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Enterprise communication platform providers by metro

Metro	Companies
Enterprise communication platform providers in Berlin	5
Enterprise communication platform providers in Hamburg	4
Enterprise communication platform providers in Langenhagen	2
Enterprise communication platform providers in Dusseldorf	2
Enterprise communication platform providers in Darmstadt	2
Enterprise communication platform providers in Karlsruhe	2
Enterprise communication platform providers in Munchen	2
Enterprise communication platform providers in Balgheim	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “enterprise communication platform providers”, with match quality audited by blind human judging, and headquartered in Germany.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 40 enterprise communication platform providers headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

UNIFY, headquartered in Munich, tops this list with the largest team on record.

Which city has the most enterprise communication platform providers?

Berlin leads with 5 headquartered companies, followed by Hamburg (4) and Langenhagen (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 149 verified decision-maker contacts tracked across these 40 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.