Company lists · Data refreshed September 2026
Top 25 Cybersecurity staffing based in Germany
RevenueBase identified 290 cybersecurity staffing headquartered in Germany as of September 2026 and tracks 4,065 professional contacts across them, including 1,238 with verified work emails and 51 with mobile numbers. Berlin is the largest hub.
This list covers cybersecurity staffing 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 1, 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.
The 25 largest cybersecurity staffing based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 620 contacts → | ||||
Partial evidence “secunet – Protecting Digital Infrastructures secunet is Germany’s leading cybersecurity company.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 3 | 360 contacts → | ||||
Indirect evidence “We believe in a secure digital future with minimal risk and maximum opportunities.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 131 contacts → | ||||
Indirect evidence “Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 128 contacts → | ||||
Indirect evidence “CS VISOR is a leading cyber security education/training center and professional recruitment & IT security service provider, dedicated to- help people in changing their careers to…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 83 contacts → | ||||
Indirect evidence “r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 68 contacts → | ||||
Indirect evidence “ditis - The Security Company!” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 55 contacts → | ||||
Partial evidence “water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Partial evidence “Just stronger Cybersecurity - Beratung, Konzeption, Umsetzung und Aufrechterhaltung von Maßnahmen rund um die IT-Security gehört zu unseren Leistungen.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 51 contacts → | ||||
Indirect evidence “Blaze Information Security is a CREST-accredited penetration testing and offensive security firm, trusted by 300+ organizations across 25+ countries.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 49 contacts → | ||||
Indirect evidence “ProSec GmbH verwandelt Unternehmen in digitale Festungen.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 14 | 46 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 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 contacts → | ||||
Indirect evidence “ForeNova helps Small and Medium Enterprises leverage existing cyber security solutions to improve the detection of hidden security threats with greater speed and precision.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 38 contacts → | ||||
Indirect evidence “BDO Cyber Security GmbH is your competent partner in all in all cyber security matters.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 36 contacts → | ||||
Indirect evidence “Wir sind die Com-Sys!” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Wir als blue networks GmbH sind seit 2002 einer der führenden IT-Dienstleister im Bereich Netzwerklösungen und IT-Sicherheit.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “Mit unserer Erfahrung und innovativen Lösungen schützen wir mittelständische Unternehmen in ganz Deutschland.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Indirect evidence “We are a cyber security company based in Gelsenkirchen, Germany.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Partial evidence “Cybersecurity – zielsicher, ganzheitlich, auf Augenhöhe.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 16 contacts → | ||||
Indirect evidence “Services: Penetration Tests & Web Application Hacking IoT, SCADA & Hardware Hacking Red Team Assessments & Attack Simulations Social Engineering & Awareness Trainings Source Code…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Partial evidence “Binary Gecko GmbH is a provider of comprehensive and specialized cybersecurity solutions to businesses and institutions of all sizes.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Indirect evidence “LargeNet ist ein Cybersicherheitspartner für mittelständische Unternehmen.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Indirect evidence “AGT helps organizations create secure environments for safer operations and better service.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
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 staffing. 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 staffing.
- Partial evidence
- Its own public description names part of cybersecurity staffing, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cybersecurity staffing. 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 290 cybersecurity staffing based in Germany
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Cybersecurity staffing based in Germany at a glance
As of Sep 1, 2026Companies by employee count
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 staffing, 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 staffing”. 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 staffing), 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 staffing, 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, 1,238 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 1, 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 staffing 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 staffing, 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 staffing are there based in Germany?
RevenueBase identified 290 cybersecurity staffing 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 staffing?
Berlin leads with 39 headquartered companies, followed by Munich (17) and Hamburg (11).
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 1,238 verified decision-maker contacts tracked across these 290 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 1, 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.
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