Company lists · Data refreshed September 2026

Top 25 Security vulnerability scanning companies based in Germany

RevenueBase identified 67 security vulnerability scanning companies headquartered in Germany as of September 2026 and tracks 352 professional contacts across them, including 130 with verified work emails. Berlin is the largest hub.

This list covers security vulnerability scanning companies 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 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
67Companies
352Contacts tracked
130Verified emails
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The 25 largest security vulnerability scanning companies based in Germany

Ranked by team size
Top 25 of 67 security vulnerability scanning companies based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to security vulnerability scanning 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceOsnabrueck, GermanyHQ checked Sep 29, 202651-200109 contacts →

Partial evidence

“With over installations worldwide, Greenbone is the most widely used provider of open source vulnerability management.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceKarlsruhe, GermanyHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Cure53 offers classic black-box penetration tests (zero-knowledge) as well as white-box tests and code audits.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceMunich, GermanyHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Book.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202611-5014 contacts →

Indirect 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 29, 2026
6Partial evidenceSt. Ingbert, GermanyHQ checked Sep 29, 202611-5011 contacts →

Partial evidence

“Founded in late 2020 as a spin-off of the CISPA Helmholtz Center for Information Security, we strive to transfer research excellence to real-world products that support businesses…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceWalldorf, GermanyHQ checked Sep 29, 202611-5010 contacts →

Partial evidence

“WALLSEC specializes in penetration testing and security audits for critical enterprise IT.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceKreuztal, GermanyHQ checked Sep 29, 20261-109 contacts →

Indirect evidence

“EINFACH.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceBerlin, GermanyHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Bugshell is a European penetration testing platform that enables organizations to manage security testing in a transparent, trackable, and scalable way.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceAachen, GermanyHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“X41 D-Sec GmbH is an expert provider for application security services.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceHamburg, GermanyHQ checked Sep 29, 202611-507 contacts →

Partial evidence

“cysmo® transforms cyber risk management in the financial industry, specifically designed for insurance companies and with a sophisticated outside-in scanning method, cysmo®…”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidencePotsdam, GermanyHQ checked Sep 29, 202611-507 contacts →

Partial evidence

“Most cloud security tools tell you what's misconfigured.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceKönigstein, GermanyHQ checked Sep 29, 202611-505 contacts →

Indirect evidence

“Die SpecOps Solutions GmbH ist ein Nischenanbieter für Informationssicherheit.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceRegensburg, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Stellen Sie sich vor, Sie erhalten plötzlich einen Anruf von Ihrer IT-Abteilung, dass das Unternehmen gehackt wurde und alle Dateien verschlüsselt oder gestohlen wurden.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceIngolstadt, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceWeingarten, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Our Fully Autonomous Pentesting Solution helps businesses with constrained cybersecurity resources efficiently achieve and demonstrate strong cybersecurity by reducing complexity…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceFlensburg, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Es ist unser Anliegen die Infrastruktur unserer Kunden bestmöglich und effizient vor Cyber-Bedrohungen aller Art zu schützen.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceBergisch Gladbach, GermanyHQ checked Sep 29, 202611-503 contacts →

Indirect evidence

“The company name “Jester” refers to the tradition of a special kind of consultant during the medieval royal courts: The Court Jester The court jester was the only one in court…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceAlbstadt, GermanyHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“Willkommen bei Alb Cyber Guards, Ihrem vertrauenswürdigen Partner für Penetrationstests!”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceEllhofen, GermanyHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“bi-sec ist ein modernes Unternehmen, welches Kunden aus verschiedenen Branchen als Dienstleister im Bereich der IT- und Informationssicherheit zur Seite steht.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceBerlin, GermanyHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Advanced Cyber Security software solutions and services.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceMeerbusch, GermanyHQ checked Sep 29, 202611-501 contacts →

Partial evidence

“Dynamic Solution IT & Security GmbH & Co.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceMunich, GermanyHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Katana Sec GmbH is your go-to expert in IT security services and consulting.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceArnsberg, GermanyHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceBad Krozingen, GermanyHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“pen.sec AG - We are.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 67 security vulnerability scanning companies based in Germany

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Security vulnerability scanning companies based in Germany at a glance

As of Sep 29, 2026
36.9%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
19.4%Largest-city concentration · Berlin
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
18
51-200
3

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 67 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 security vulnerability scanning 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 “security vulnerability scanning 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 security vulnerability scanning 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 security vulnerability scanning 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, 130 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 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.

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 security vulnerability scanning companies, 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 security vulnerability scanning companies are there based in Germany?

RevenueBase identified 67 security vulnerability scanning companies 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?

Greenbone AG, headquartered in Osnabrueck, tops this list with the largest team on record.

Which city has the most security vulnerability scanning companies?

Berlin leads with 13 headquartered companies, followed by Munich (6) and Dortmund (3).

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 130 verified decision-maker contacts tracked across these 67 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 29, 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.