Company lists · Data verified August 2026

Top 25 Cybersecurity incident response firms based in Germany

Name: Cybersecurity incident response firms based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 224 companies tracked

There are 224 cybersecurity incident response firms headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,903 professional contacts across them, including 1,252 with verified work emails and 41 with mobile numbers. Berlin is the largest hub.

This list covers cybersecurity incident response 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.

224Companies

2,903Contacts tracked

1,252Verified emails

41Mobile numbers

Unlock all 224 companies Free account · no credit card · 2 minutes

The 25 largest cybersecurity incident response firms based in Germany

Ranked by team size

Top 25 of 224 cybersecurity incident response 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	G Data Cyberdefense	Bochum	501-1,000	389	154
2	Telekom Security	Bonn	1,001-5,000	360	183
3	STOÏK	Munich	51-200	141	94
4	USD AG	Neu-Isenburg	51-200	131	92
5	R-Tec IT Security Gmbh	Wuppertal	51-200	83	47
6	8com Gmbh & Co. KG	Neustadt An Der Weinstrasse	51-200	78	46
7	Secuinfra Gmbh	Berlin	51-200	71	44
8	Indevis Gmbh	Munich	51-200	70	36
9	Syss Gmbh	Frankfurt	51-200	70	6
10	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
11	Water IT Security & Defense	Dusseldorf	51-200	55	20
12	Blaze Information Security	Berlin	51-200	51	30
13	Concentrade Gmbh	Koln	51-200	51	30
14	Prosec Gmbh	Munchen	51-200	49	29
15	Cogitanda Deutschland	Koln	51-200	49	24
16	Hvs-Consulting	Garching	51-200	46	27
17	Forenova Technologies Gmbh	Nuremberg	51-200	45	13
18	BDO Cyber Security Gmbh	Dusseldorf	51-200	38	19
19	Cirosec Gmbh	Heilbronn	51-200	36	23
20	Allgeier Cyris Gmbh	Bremen	51-200	27	14
21	Code White Gmbh	Ulm	51-200	24	16
22	Enbw Cyber Security Gmbh	Karlsruhe	11-50	22	13
23	Smart Cyber Security Gmbh	Augsburg	11-50	22	12
24	Link Protect Gmbh	Furth	51-200	21	17
25	ILERT	Cologne	11-50	15	7

Showing 25 of 224 cybersecurity incident response firms based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,252 reachable decision-makers.

Free account · no credit card

See all 224 companies

Cybersecurity incident response firms based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 25 HQs

41Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

128

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity incident response firms by metro

Metro	Companies
Cybersecurity incident response firms in Berlin	25
Cybersecurity incident response firms in Munich	17
Cybersecurity incident response firms in Hamburg	9
Cybersecurity incident response firms in Frankfurt	7
Cybersecurity incident response firms in Dusseldorf	6
Cybersecurity incident response firms in Bochum	5
Cybersecurity incident response firms in Koln	5
Cybersecurity incident response firms in Frankfurt Am Main	5

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 incident response 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 cybersecurity incident response firms are there based in Germany?

There are 224 cybersecurity incident response firms 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 incident response firms?

Berlin leads with 25 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 1,252 verified decision-maker contacts tracked across these 224 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.

Ready to reach these companies? Verified emails and direct dials for all 224 cybersecurity incident response firms based in Germany. Start with a free account, no credit card.

Get the full list

Related lists

Cybersecurity incident response firms by geography

Browse the directory

Browse: Companies home · All Germany lists · All Cybersecurity incident response firms lists · New lists

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.