Company lists · Data verified August 2026

Top 25 Application security testing companies based in Germany

Name: Application security testing companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 152 companies tracked

There are 152 application security testing companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 1,377 professional contacts across them, including 595 with verified work emails and 16 with mobile numbers. Berlin is the largest hub.

This list covers application security testing 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.

152Companies

1,377Contacts tracked

595Verified emails

16Mobile numbers

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The 25 largest application security testing companies based in Germany

Ranked by team size

Top 25 of 152 application security testing 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	USD AG	Neu-Isenburg	51-200	131	92
2	TÜV Informationstechnik Gmbh	Essen	51-200	110	60
3	SEC Consult Group	Bochum	201-500	98	36
4	Syss Gmbh	Frankfurt	51-200	70	6
5	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
6	Blaze Information Security	Berlin	51-200	51	30
7	Prosec Gmbh	Munchen	51-200	49	29
8	Hvs-Consulting	Garching	51-200	46	27
9	Ernw Enno REY Netzwerke Gmbh	Heidelberg	11-50	31	2
10	MGM Security Partners Gmbh	Cologne	11-50	28	12
11	Enbw Cyber Security Gmbh	Karlsruhe	11-50	22	13
12	Sedevo IT Consulting Gmbh	Bergisch Gladbach	11-50	21	8
13	Schutzwerk Gmbh	Hamburg	11-50	20	4
14	OAK Security	Munich	11-50	19	9
15	Cure53	Berlin	11-50	18	9
16	Schönbrunn Tasc Gmbh	Leonberg	11-50	18	7
17	Nside Attack Logic Gmbh	Munchen	11-50	16	11
18	Cyber Samurai Gmbh	Vaterstetten	11-50	16	10
19	Protea Networks Gmbh	Unterhaching	11-50	16	8
20	Auxilium Cyber Security	Ettlingen	11-50	15	8
21	Whitelisthackers	Bamberg	11-50	14	5
22	Protforce Gmbh	Wiesbaden	11-50	12	10
23	Bitaggregat Gmbh	Leipzig	11-50	12	6
24	Greenhats Gmbh	Weimar Lahn	11-50	11	3
25	Port Zero	Berlin	11-50	11	2

Showing 25 of 152 application security testing companies based in Germany

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Application security testing companies based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 21 HQs

16Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Application security testing companies by metro

Metro	Companies
Application security testing companies in Berlin	21
Application security testing companies in Hamburg	8
Application security testing companies in Munich	7
Application security testing companies in Munchen	6
Application security testing companies in Bochum	5
Application security testing companies in Wiesbaden	5
Application security testing companies in Frankfurt	4
Application security testing companies in Karlsruhe	4

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 “application security testing 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 application security testing companies are there based in Germany?

There are 152 application security testing companies headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

USD AG, headquartered in Neu-Isenburg, tops this list with the largest team on record.

Which city has the most application security testing companies?

Berlin leads with 21 headquartered companies, followed by Hamburg (8) and Munich (7).

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 595 verified decision-maker contacts tracked across these 152 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.