Company lists · Data verified August 2026

Top 25 Collaboration and communication software companies based in Germany

Name: Collaboration and communication software companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 93 companies tracked

There are 93 collaboration and communication software companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 3,045 professional contacts across them, including 423 with verified work emails and 265 with mobile numbers. Berlin is the largest hub.

This list covers collaboration and communication software companies 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.

93Companies

3,045Contacts tracked

423Verified emails

265Mobile numbers

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The 25 largest collaboration and communication software companies based in Germany

Ranked by team size

Top 25 of 93 collaboration and communication software companies 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	Seibert Group Gmbh	Wiesbaden	201-500	218	111
3	WIRE	Berlin	51-200	159	69
4	Nextcloud	Stuttgart	51-200	118	1
5	NET At Work Gmbh	Paderborn	51-200	84	60
6	C4b COM For Business AG	Germering	51-200	65	12
7	Estos Gmbh	Munich	51-200	53	32
8	Communardo Products	Dresden	11-50	25	18
9	Caseris Gmbh	Stolberg Rhld.	51-200	21	17
10	Up2go	Mainz	11-50	20	6
11	Stackfield	Munchen	11-50	17	1
12	d.network	Berlin	11-50	16	3
13	Ctmodule AG	n/a	11-50	15	13
14	Greyhound Software	Melle	11-50	15	10
15	Starleaf	Hamburg	201-500	14	9
16	Exsolut Gmbh	Alsdorf Aachen	11-50	13	1
17	5fsoftware Gmbh	Regensburg	11-50	12	9
18	Raum Virtual Reality Collaboration	Cologne	1-10	12	8
19	Überblick	Hilden	11-50	10	3
20	Just Software AG	Hamburg	11-50	8	1
21	42he	Koln	11-50	7	5
22	NEW Trisko Gmbh	Jever	11-50	6	3
23	Atrigam	Duesseldorf	1-10	5	3
24	Sharesuite Gmbh	Hannover	11-50	5	2
25	Smart Technologies Germany Gmbh	Koln	11-50	4	4

Showing 25 of 93 collaboration and communication software companies based in Germany

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Collaboration and communication software companies based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 10 HQs

265Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

Collaboration and communication software companies by metro

Metro	Companies
Collaboration and communication software companies in Berlin	10
Collaboration and communication software companies in Hamburg	8
Collaboration and communication software companies in Stuttgart	6
Collaboration and communication software companies in Munich	4
Collaboration and communication software companies in Koln	4
Collaboration and communication software companies in Wiesbaden	3
Collaboration and communication software companies in Dusseldorf	3

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 “collaboration and communication software companies”, 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; 3 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 collaboration and communication software companies are there based in Germany?

There are 93 collaboration and communication software companies 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 collaboration and communication software companies?

Berlin leads with 10 headquartered companies, followed by Hamburg (8) and Stuttgart (6).

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 423 verified decision-maker contacts tracked across these 93 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.