Company lists · Data refreshed September 2026

Top 25 Cybersecurity thought leadership agencies based in Germany

RevenueBase identified 370 cybersecurity thought leadership agencies headquartered in Germany as of September 2026 and tracks 5,285 professional contacts across them, including 1,890 with verified work emails. Berlin is the largest hub.

This list covers cybersecurity thought leadership agencies headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
370Companies
5,285Contacts tracked
1,890Verified emails
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The 25 largest cybersecurity thought leadership agencies based in Germany

Ranked by team size
Top 25 of 370 cybersecurity thought leadership agencies based in Germany, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity thought leadership agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceEssen, GermanyHQ checked Sep 28, 20261,001-5,000623 contacts →

Indirect evidence

“secunet – We are the Guardians of Europe's Digital Freedom.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceSaarbrücken, GermanyHQ checked Sep 28, 2026501-1,000444 contacts →

Indirect evidence

“The CISPA Helmholtz Center for Information Security is a national Big Science institution within the Helmholtz Association.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceBochum, GermanyHQ checked Sep 28, 2026501-1,000386 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 Sep 28, 2026
4Indirect evidenceBonn, GermanyHQ checked Sep 28, 20261,001-5,000363 contacts →

Indirect evidence

“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceNeu-isenburg, GermanyHQ checked Sep 28, 202651-200130 contacts →

Indirect evidence

“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceDarmstadt, GermanyHQ checked Sep 28, 2026201-500129 contacts →

Indirect evidence

“The Fraunhofer Institute for Secure Information Technology SIT is the leading expert for IT Security and develops solutions for immediate use, tailored to the customer's needs.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceEssen, GermanyHQ checked Sep 28, 202651-200111 contacts →

Indirect evidence

“TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceWuppertal, GermanyHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceUlm, GermanyHQ checked Sep 28, 202651-20069 contacts →

Indirect evidence

“ditis - The Security Company!”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceBonn, GermanyHQ checked Sep 28, 202651-20067 contacts →

Indirect evidence

“SRC Security Research & Consulting is committed to providing service in the areas of information technology and information security.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceHalle (saale), GermanyHQ checked Sep 28, 202651-20061 contacts →

Indirect evidence

“Wir verstehen uns als treibende Kraft einer offenen Innovations- und Wagniskultur und für ein lebendiges Ökosystem zur Förderung von Cybersicherheitstechnologien.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceBerlin, GermanyHQ checked Sep 28, 202651-20055 contacts →

Partial evidence

“Security Research Labs (SRLabs) is a cybersecurity consultancy and research collective committed to making the world more secure.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceDortmund, GermanyHQ checked Sep 28, 202651-20052 contacts →

Partial evidence

“Just stronger Cybersecurity - Bestmöglichen Schutz vor Cyberangriffen aufzubauen und auf hohem Niveau zu halten, ist Kernkompetenz der concentrade.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceBerlin, GermanyHQ checked Sep 28, 202651-20051 contacts →

Indirect evidence

“proXcel is a specialized management consultancy focused on information security and digital resilience.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceMendig, GermanyHQ checked Sep 28, 202651-20049 contacts →

Indirect evidence

“ProSec GmbH verwandelt Unternehmen in digitale Festungen.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202611-5048 contacts →

Indirect evidence

“I’m not your usual analyst.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceGarching, GermanyHQ checked Sep 28, 202651-20046 contacts →

Indirect evidence

“HvS-Consulting AG is consulting large and medium-sized companies on the topic of cyber security since 2002.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceHamburg, GermanyHQ checked Sep 28, 202651-20040 contacts →

Indirect evidence

“BDO Cyber Security GmbH is your competent partner in all in all cyber security matters.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceHeilbronn, GermanyHQ checked Sep 28, 202651-20038 contacts →

Indirect evidence

“We are a specialized company focusing on information security, carrying out penetration tests, supporting our customers with incident response und advising them on information and…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLangenfeld, GermanyHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceNeu-Isenburg, GermanyHQ checked Sep 28, 202651-20034 contacts →

Indirect evidence

“Wir sind die Com-Sys!”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceFlensburg, GermanyHQ checked Sep 28, 202651-20033 contacts →

Indirect evidence

“Die DGC AG ist ein Unternehmen für All-in-One Cybersicherheitslösungen.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceMannheim, GermanyHQ checked Sep 28, 202651-20033 contacts →

Indirect evidence

“SAMA PARTNERS Business Solutions ist ein unabhängiges Beratungs- und Engineering-Unternehmen mit Hauptsitz in Mannheim, mit den Schwerpunkten Informationssicherheit, KI und…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceHeidelberg, GermanyHQ checked Sep 28, 202611-5032 contacts →

Indirect evidence

“ERNW ist ein unabhängiger IT-Security Dienstleister mit Sitz in Heidelberg.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceAugsburg, GermanyHQ checked Sep 28, 202611-5031 contacts →

Indirect evidence

“ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 370 cybersecurity thought leadership agencies based in Germany

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Cybersecurity thought leadership agencies based in Germany at a glance

As of Sep 28, 2026
35.8%Verified-email coverage
14.3Average contacts per company
1-10Median size (employees)
8.9%Largest-city concentration · Berlin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
222
11-50
111
51-200
26
201-500
3
501-1,000
4
1,001-5,000
4

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 370 companies.

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 thought leadership agencies, 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 thought leadership agencies”. 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 thought leadership agencies), 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 thought leadership agencies, 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, 1,890 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 September 28, 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 thought leadership agencies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity thought leadership agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity thought leadership agencies are there based in Germany?

RevenueBase identified 370 cybersecurity thought leadership agencies headquartered in Germany as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.

Which city has the most cybersecurity thought leadership agencies?

Berlin leads with 33 headquartered companies, followed by Munich (22) and Frankfurt (13).

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 1,890 verified decision-maker contacts tracked across these 370 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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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.