Company lists · Data verified August 2026

Top 25 Cybersecurity and defense software companies based in Germany

Name: Cybersecurity and defense 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 162 companies tracked

There are 162 cybersecurity and defense software companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 3,835 professional contacts across them, including 1,049 with verified work emails and 73 with mobile numbers. Berlin is the largest hub.

This list covers cybersecurity and defense 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.

162Companies

3,835Contacts tracked

1,049Verified emails

73Mobile numbers

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The 25 largest cybersecurity and defense software companies based in Germany

Ranked by team size

Top 25 of 162 cybersecurity and defense 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	Secunet Security Networks AG	Essen	1,001-5,000	620	59
2	G Data Cyberdefense	Bochum	501-1,000	389	154
3	Telekom Security	Bonn	1,001-5,000	360	183
4	Comforte AG	Wiesbaden	51-200	140	4
5	Rohde & Schwarz Cybersecurity	Munchen	201-500	98	40
6	R-Tec IT Security Gmbh	Wuppertal	51-200	83	47
7	Secuinfra Gmbh	Berlin	51-200	71	44
8	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
9	Enginsight Gmbh	Jena	51-200	65	43
10	Knodtec Solutions Private Limited	Cologne	51-200	64	21
11	Eset Dach	Jena	51-200	62	51
12	Water IT Security & Defense	Dusseldorf	51-200	55	20
13	Prosec Gmbh	Munchen	51-200	49	29
14	Hvs-Consulting	Garching	51-200	46	27
15	Forenova Technologies Gmbh	Nuremberg	51-200	45	13
16	Innosystec Gmbh	Salem	51-200	44	23
17	Aegis IT Research	Braunschweig	11-50	41	1
18	Consecur Gmbh	Bochum	51-200	38	23
19	Ecos Technology Gmbh	Oppenheim	51-200	33	20
20	DGC AG	Flensburg	51-200	33	13
21	Enbw Cyber Security Gmbh	Karlsruhe	11-50	22	13
22	Smart Cyber Security Gmbh	Augsburg	11-50	22	12
23	Aware7 Gmbh	Gelsenkirchen	11-50	22	6
24	Edgeless Systems	Bochum	11-50	21	8
25	Incyde	Leipzig	11-50	20	12

Showing 25 of 162 cybersecurity and defense software companies based in Germany

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Cybersecurity and defense software companies based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 20 HQs

73Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity and defense software companies by metro

Metro	Companies
Cybersecurity and defense software companies in Berlin	20
Cybersecurity and defense software companies in Munich	13
Cybersecurity and defense software companies in Bochum	8
Cybersecurity and defense software companies in Hamburg	6
Cybersecurity and defense software companies in Munchen	6
Cybersecurity and defense software companies in Dusseldorf	4
Cybersecurity and defense software companies in Frankfurt	4
Cybersecurity and defense software companies in Koln	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 “cybersecurity and defense 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; 2 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 and defense software companies are there based in Germany?

There are 162 cybersecurity and defense software companies headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.

Which city has the most cybersecurity and defense software companies?

Berlin leads with 20 headquartered companies, followed by Munich (13) and Bochum (8).

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 1,049 verified decision-maker contacts tracked across these 162 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.