Company lists · Data verified August 2026

Top 25 Cybersecurity training companies based in Germany

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 251 companies tracked

There are 251 cybersecurity training companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,914 professional contacts across them, including 962 with verified work emails and 39 with mobile numbers. Berlin is the largest hub.

This list covers cybersecurity training 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.

251Companies

2,914Contacts tracked

962Verified emails

39Mobile numbers

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The 25 largest cybersecurity training companies based in Germany

Ranked by team size

Top 25 of 251 cybersecurity training 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	G Data Cyberdefense	Bochum	501-1,000	389	154
2	Telekom Security	Bonn	1,001-5,000	360	183
3	USD AG	Neu-Isenburg	51-200	131	92
4	CS Visor	n/a	11-50	128	8
5	Exclusive Networks Deutschland Gmbh	Munster	51-200	85	45
6	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
7	Water IT Security & Defense	Dusseldorf	51-200	55	20
8	Concentrade Gmbh	Koln	51-200	51	30
9	Prosec Gmbh	Munchen	51-200	49	29
10	Hvs-Consulting	Garching	51-200	46	27
11	STI Security Training International Gmbh	Florsheim Am Main	201-500	27	15
12	Simedia Akademie Gmbh	Bonn	11-50	23	1
13	Aware7 Gmbh	Gelsenkirchen	11-50	22	6
14	Heise Academy	Hannover	11-50	19	10
15	OAK Security	Munich	11-50	19	9
16	White HAT IT Security	Munich	11-50	18	10
17	Nside Attack Logic Gmbh	Munchen	11-50	16	11
18	Largenet Gmbh	Hamburg	11-50	15	5
19	Cyber Curriculum	Berlin	11-50	14	9
20	Whitelisthackers	Bamberg	11-50	14	5
21	Keepbit	Augsburg	11-50	14	5
22	Digitevo Gmbh	Wettenberg	11-50	13	7
23	Data-Sec Gmbh	March	11-50	12	5
24	Ujima Gmbh	Frankfurt Am Main	11-50	10	6
25	Difesa	Munich	11-50	10	1

Showing 25 of 251 cybersecurity training companies based in Germany

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Cybersecurity training companies based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 28 HQs

39Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

152

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity training companies by metro

Metro	Companies
Cybersecurity training companies in Berlin	28
Cybersecurity training companies in Munich	17
Cybersecurity training companies in Hamburg	9
Cybersecurity training companies in Frankfurt	9
Cybersecurity training companies in Dusseldorf	8
Cybersecurity training companies in Bochum	7
Cybersecurity training companies in Koln	7
Cybersecurity training companies in Hannover	6

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 training 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; 4 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 training companies are there based in Germany?

There are 251 cybersecurity training companies headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

G Data Cyberdefense, headquartered in Bochum, tops this list with the largest team on record.

Which city has the most cybersecurity training companies?

Berlin leads with 28 headquartered companies, followed by Munich (17) and Hamburg (9).

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 962 verified decision-maker contacts tracked across these 251 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.