Company lists · Data verified August 2026

Top 25 Application security consulting firms based in Germany

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 264 companies tracked

There are 264 application security consulting firms headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,078 professional contacts across them, including 909 with verified work emails and 24 with mobile numbers. Berlin is the largest hub.

This list covers application security consulting firms 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.

264Companies

2,078Contacts tracked

909Verified emails

24Mobile numbers

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The 25 largest application security consulting firms based in Germany

Ranked by team size

Top 25 of 264 application security consulting firms 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	Telekom Security	Bonn	1,001-5,000	360	183
2	USD AG	Neu-Isenburg	51-200	131	92
3	SEC Consult Group	Bochum	201-500	98	36
4	Syss Gmbh	Frankfurt	51-200	70	6
5	SRC Security Research And Consulting Gmbh	Bonn	51-200	69	43
6	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
7	Blaze Information Security	Berlin	51-200	51	30
8	Hvs-Consulting	Garching	51-200	46	27
9	Orexes Consulting	Fulda	51-200	43	29
10	Trusted Security Solutions - TSS	Berlin	201-500	43	14
11	Cloudyrion	Dusseldorf	11-50	31	16
12	MGM Security Partners Gmbh	Cologne	11-50	28	12
13	Squalify	Munchen	11-50	25	19
14	Sedevo IT Consulting Gmbh	Bergisch Gladbach	11-50	21	8
15	OAK Security	Munich	11-50	19	9
16	Cure53	Berlin	11-50	18	9
17	Protea Networks Gmbh	Unterhaching	11-50	16	8
18	Laokoon Security Gmbh	Bonn	11-50	16	8
19	Teal Technology Consulting Gmbh	Dusseldorf	11-50	15	10
20	Auxilium Cyber Security	Ettlingen	11-50	15	8
21	Artada Gmbh	Werl	11-50	13	8
22	Security Assist Gmbh	Dortmund	11-50	13	5
23	Protforce Gmbh	Wiesbaden	11-50	12	10
24	Bitaggregat Gmbh	Leipzig	11-50	12	6
25	Anmatho AG	Hamburg	11-50	11	6

Showing 25 of 264 application security consulting firms based in Germany

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Application security consulting firms based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 34 HQs

24Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

175

11-50

51-200

201-500

501-1,000

1,001-5,000

Application security consulting firms by metro

Metro	Companies
Application security consulting firms in Berlin	34
Application security consulting firms in Munich	11
Application security consulting firms in Hamburg	9
Application security consulting firms in Munchen	7
Application security consulting firms in Stuttgart	6
Application security consulting firms in Dusseldorf	6
Application security consulting firms in Karlsruhe	6
Application security consulting firms in Wiesbaden	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 “application security consulting firms”, 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; 6 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 consulting firms are there based in Germany?

There are 264 application security consulting firms headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

Telekom Security, headquartered in Bonn, tops this list with the largest team on record.

Which city has the most application security consulting firms?

Berlin leads with 34 headquartered companies, followed by Munich (11) 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 909 verified decision-maker contacts tracked across these 264 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.