Company lists · Data refreshed August 2026

Top 25 Cybersecurity companies based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Aug 29, 2026 824 companies tracked

Our directory lists 824 cybersecurity companies based in Germany, with 16,856 professional contacts and 6,586 email addresses. The list was last updated in August 2026, and Berlin is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Aug 29, 2026 86% judged on-target in blind review

824Companies

16,856Contacts tracked

6,586Verified emails

826Mobile numbers

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The 25 largest cybersecurity companies based in Germany

Ranked by team size

Top 25 of 824 cybersecurity companies based in Germany, ranked by team size, largest first. Data refreshed Aug 29, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Giesecke Devrient	Indirect evidence	Munich, Germany	10001+	6,238 contacts →
	Indirect evidence “Giesecke+Devrient (G+D) is a global SecurityTech company headquartered in Munich, Germany.” Source: RevenueBase Database · checked Aug 29, 2026
2	MTI	Indirect evidence	Munchen, Germany	201-500	762 contacts →
	Indirect evidence “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Source: RevenueBase Database · checked Aug 29, 2026
3	Secunet Security Networks AG	Strong evidence	Essen, Germany	1,001-5,000	620 contacts →
	Strong evidence “secunet – Protecting Digital Infrastructures secunet is Germany’s leading cybersecurity company.” Source: RevenueBase Database · checked Aug 29, 2026
4	Hornetsecurity	Indirect evidence	Darmstadt, Germany	501-1,000	474 contacts →
	Indirect evidence “Hornetsecurity is a leading global provider of next-generation cloud-based security, compliance, backup, and security awareness solutions that help companies and organizations of…” Source: RevenueBase Database · checked Aug 29, 2026
5	G Data Cyberdefense	Indirect evidence	Bochum, Germany	501-1,000	389 contacts →
	Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Aug 29, 2026
6	Telekom Security	Indirect evidence	Bonn, Germany	1,001-5,000	360 contacts →
	Indirect evidence “We believe in a secure digital future with minimal risk and maximum opportunities.” Source: RevenueBase Database · checked Aug 29, 2026
7	Onapsis	Strong evidence	Heidelberg, Germany	201-500	338 contacts →
	Strong evidence “Onapsis is the global leader in SAP cybersecurity and compliance, trusted by the world’s leading organizations to securely accelerate their SAP cloud digital transformations with…” Source: RevenueBase Database · checked Aug 29, 2026
8	Infinigate Deutschland	Strong evidence	Haar, Germany	201-500	241 contacts →
	Strong evidence “Die Infinigate Group konzentriert sich als Value-add Distributor auf führende und nachhaltige Cybersecurity-Lösungen.” Source: RevenueBase Database · checked Aug 29, 2026
9	DTS Systeme Gmbh	Indirect evidence	Koln, Germany	201-500	227 contacts →
	Indirect evidence “DTS Systeme steht als erfolgreicher IT-Dienstleister seit über 40 Jahren deutschland- und europaweit für Innovation, Kompetenz sowie Leidenschaft.” Source: RevenueBase Database · checked Aug 29, 2026
10	STOÏK	Indirect evidence	Munich, Germany	51-200	141 contacts →
	Indirect evidence “Stoïk protects SMEs and mid-sized organizations across Europe against cyber risks with an integrated, AI-powered model combining insurance coverage, active risk prevention and…” Source: RevenueBase Database · checked Aug 29, 2026
11	Comforte AG	Indirect evidence	Wiesbaden, Germany	51-200	140 contacts →
	Indirect evidence “At comforte AG, we help our customers achieve the highest standards of data security and privacy.” Source: RevenueBase Database · checked Aug 29, 2026
12	USD AG	Indirect evidence	Neu-Isenburg, Germany	51-200	131 contacts →
	Indirect evidence “Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: RevenueBase Database · checked Aug 29, 2026
13	Securepoint Gmbh	Indirect evidence	Potsdam, Germany	201-500	111 contacts →
	Indirect evidence “Securepoint GmbH, from the Hanseatic city of Lüneburg, is the market leader in the development of professional “Unified Threat Management” solutions in Germany.” Source: RevenueBase Database · checked Aug 29, 2026
14	Rohde & Schwarz Cybersecurity	Strong evidence	Munchen, Germany	201-500	98 contacts →
	Strong evidence “Rohde & Schwarz Cybersecurity is a leading IT security company that protects companies and public institutions around the world against cyberattacks.” Source: RevenueBase Database · checked Aug 29, 2026
15	SEC Consult Group	Indirect evidence	Bochum, Germany	201-500	98 contacts →
	Indirect evidence “SEC Consult is one of the leading consultancies in the area of cyber and application security.” Source: RevenueBase Database · checked Aug 29, 2026
16	Exclusive Networks Deutschland Gmbh	Strong evidence	Munster, Germany	51-200	85 contacts →
	Strong evidence “Exclusive Networks ist ein globaler Cybersecurity- und Netzwerk-Spezialist, der Partnern und Endkunden über bewährte Vertriebswege und auf der Grundlage des technischen Know-hows…” Source: RevenueBase Database · checked Aug 29, 2026
17	R-Tec IT Security Gmbh	Indirect evidence	Wuppertal, Germany	51-200	83 contacts →
	Indirect evidence “r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: RevenueBase Database · checked Aug 29, 2026
18	8com Gmbh & Co. KG	Indirect evidence	Neustadt An Der Weinstrasse, Germany	51-200	78 contacts →
	Indirect evidence “8COM is a leading Managed Security Service Provider (MSSP).” Source: RevenueBase Database · checked Aug 29, 2026
19	Spike Reply DE	Strong evidence	Gutersloh, Germany	1,001-5,000	76 contacts →
	Strong evidence “Spike Reply is the cybersecurity company within the Reply Group, focused on securing complex IT, OT, and cloud environments across all stages of digital transformation.” Source: RevenueBase Database · checked Aug 29, 2026
20	Myra Security Gmbh	Indirect evidence	Munchen, Germany	51-200	74 contacts →
	Indirect evidence “The German technology manufacturer Myra offers a secure, certified Security-as-a-Service platform for protecting digital business processes.” Source: RevenueBase Database · checked Aug 29, 2026
21	Indevis Gmbh	Indirect evidence	Munich, Germany	51-200	70 contacts →
	Indirect evidence “Argos Security zählt zu den führenden Managed Security Service Providern (MSSP) im DACH-Raum und unterstützt den gehobenen Mittelstand, Konzerne und öffentliche Auftraggeber mit…” Source: RevenueBase Database · checked Aug 29, 2026
22	Syss Gmbh	Indirect evidence	Frankfurt, Germany	51-200	70 contacts →
	Indirect evidence “Die SySS GmbH ist ein herstellerunabhängiger IT-Sicherheitsdienstleister und führender Anbieter für Penetrationstests in der DACH-Region.” Source: RevenueBase Database · checked Aug 29, 2026
23	Ditis Systeme	Indirect evidence	Heidenheim An Der Brenz, Germany	51-200	68 contacts →
	Indirect evidence “ditis - The Security Company!” Source: RevenueBase Database · checked Aug 29, 2026
24	Techbros	Strong evidence	Dusseldorf, Germany	501-1,000	68 contacts →
	Strong evidence “We deliver advanced IT, Cybersecurity, AI, and Telecommunications solutions for enterprises, operators, and governments worldwide.” Source: RevenueBase Database · checked Aug 29, 2026
25	Enginsight Gmbh	Strong evidence	Jena, Germany	51-200	65 contacts →
	Strong evidence “Enginsight ist die praxisnahe und effiziente Cybersecurity Plattform aus Deutschland, für mittelständische Unternehmen, KRITIS und öffentliche Träger.” Source: RevenueBase Database · checked Aug 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 824 cybersecurity companies based in Germany

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Cybersecurity companies based in Germany at a glance

As of Aug 29, 2026

39.1%Verified-email coverage

4.9%Mobile-number coverage

20.5Average contacts per company

1-10Median size (employees)

10.1%Largest-city concentration · Berlin

Aug 29, 2026Page data refreshed

Companies by employee count

1-10

466

11-50

245

51-200

201-500

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “cybersecurity companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 6,586 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on August 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity companies by metro

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 824 cybersecurity companies based in Germany.

Which city has the most cybersecurity companies?

Berlin is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 16,856 professional contacts and 6,586 email addresses for the listed cybersecurity companies.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.