Company lists · Data verified August 2026

Top 25 Cybersecurity companies in Germany

Name: Cybersecurity companies in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 824 companies tracked

Our directory lists 824 cybersecurity companies in Germany, with 16,856 professional contacts and 6,586 email addresses. The list was last updated in August 2026, and Berlin is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

824Companies

16,856Contacts tracked

6,586Verified emails

826Mobile numbers

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The 25 largest cybersecurity companies in Germany

Ranked by team size

Top 25 of 824 cybersecurity companies 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	Giesecke Devrient	Munich	10001+	6,238	2,823
2	MTI	Munchen	201-500	762	75
3	Secunet Security Networks AG	Essen	1,001-5,000	620	59
4	Hornetsecurity	Darmstadt	501-1,000	474	335
5	G Data Cyberdefense	Bochum	501-1,000	389	154
6	Telekom Security	Bonn	1,001-5,000	360	183
7	Onapsis	Heidelberg	201-500	338	187
8	Infinigate Deutschland	Haar	201-500	241	143
9	DTS Systeme Gmbh	Koln	201-500	227	133
10	STOÏK	Munich	51-200	141	94
11	Comforte AG	Wiesbaden	51-200	140	4
12	USD AG	Neu-Isenburg	51-200	131	92
13	Securepoint Gmbh	Potsdam	201-500	111	2
14	Rohde & Schwarz Cybersecurity	Munchen	201-500	98	40
15	SEC Consult Group	Bochum	201-500	98	36
16	Exclusive Networks Deutschland Gmbh	Munster	51-200	85	45
17	R-Tec IT Security Gmbh	Wuppertal	51-200	83	47
18	8com Gmbh & Co. KG	Neustadt An Der Weinstrasse	51-200	78	46
19	Spike Reply DE	Gutersloh	1,001-5,000	76	41
20	Myra Security Gmbh	Munchen	51-200	74	40
21	Indevis Gmbh	Munich	51-200	70	36
22	Syss Gmbh	Frankfurt	51-200	70	6
23	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
24	Techbros	Dusseldorf	501-1,000	68	15
25	Enginsight Gmbh	Jena	51-200	65	43
26	Knodtec Solutions Private Limited	Cologne	51-200	64	21
27	Eset Dach	Jena	51-200	62	51
28	Agentur FÜR Innovation In DER Cybersicherheit Gmbh Cyberagentur	Dresden	51-200	59	41

Showing 25 of 824 cybersecurity companies in Germany

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Cybersecurity companies in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 83 HQs

826Contacts with mobile numbers

47Emails re-verified in last 30 days

Companies by employee count

1-10

466

11-50

245

51-200

201-500

501-1,000

1,001-5,000

10001+

Companies by metro

Metro	Companies
Cybersecurity companies in Berlin	83
Cybersecurity companies in Munich	37
Cybersecurity companies in Hamburg	29
Cybersecurity companies in Munchen	28
Cybersecurity companies in Koln	24
Cybersecurity companies in Frankfurt	20
Cybersecurity companies in Bochum	20
Cybersecurity companies in Dusseldorf	20

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 “cybersecurity 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; 47 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 cybersecurity companies are in the directory?

The directory lists 824 cybersecurity companies in Germany.

Which city has the most cybersecurity companies?

Berlin is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 16,856 professional contacts and 6,586 email addresses for the listed cybersecurity companies.

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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.