Company lists · Data refreshed September 2026
Top 25 Interactive application security testing companies based in Germany
RevenueBase identified 137 interactive application security testing companies headquartered in Germany as of September 2026 and tracks 993 professional contacts across them, including 404 with verified work emails and 14 with mobile numbers. Berlin is the largest hub.
This list covers interactive application security testing 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 interactive application security testing companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 131 | ||||
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 70 | ||||
“Die SySS GmbH ist ein herstellerunabhängiger IT-Sicherheitsdienstleister und führender Anbieter für Penetrationstests in der DACH-Region.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 51 | ||||
“Blaze Information Security is a CREST-accredited penetration testing and offensive security firm, trusted by 300+ organizations across 25+ countries.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 49 | ||||
“ProSec GmbH verwandelt Unternehmen in digitale Festungen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 31 | ||||
“ERNW ist ein unabhängiger IT-Security Dienstleister mit Sitz in Heidelberg.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 28 | ||||
“Simplifying Your Security Journey Welcome to mgm security partners GmbH – your reliable partner for simple and effective IT security solutions.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 21 | ||||
“Unser Ziel ist es, für Sie Produkte und Lösungen zu entwickeln, welche gleichzeitig widerstandsfähig gegen Angriffe und Manipulationen sind, um Daten und Prozesse zu schützen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 19 | ||||
“Book.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18 | ||||
“Cure53 offers classic black-box penetration tests (zero-knowledge) as well as white-box tests and code audits.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | Security Risk SolutionsPartial evidence | 17 | |||
“Independent firm offering innovative solutions for Managed Security, Information Security & Risk, Business Continuity, Certification (ISO & PCI) and Computer Forensics.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 | ||||
“Services: Penetration Tests & Web Application Hacking IoT, SCADA & Hardware Hacking Red Team Assessments & Attack Simulations Social Engineering & Awareness Trainings Source Code…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 | ||||
“Cyber Samurai GmbH – Ihr IT-Security Dienstleister im Kampf gegen aktuelle Cyberbedrohungen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 | ||||
“Protection with Passion Seit über 20 Jahren entwickeln und implementieren wir Sicherheitsstrategien, die den Unternehmenserfolg unserer Kunden in den Mittelpunkt stellen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 | ||||
“Auxilium Cyber Security is independent information security consultancy company focusing mainly on the following topics- Penetration testing of IoT/automotive units, web and…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 | ||||
“Bei Protforce stehen Sicherheit und Zukunft im Einklang.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 | ||||
“Wir bei Bitaggregat sind Experten im Bereich Security Engineering & Testing und spezialisieren uns auf den Schutz kritischer Infrastrukturen und Ressourcen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | OctomindPartial evidence | 12 | |||
“AI-powered testing tool for web apps that finds bugs before your users do.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 | ||||
“At their core, IT security problems are often quality problems of a different kind that no one else might have noticed.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 | ||||
“greenhats® is a platform for IT security.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 | ||||
“Information Security - Software Development - System Integration - Data Privacy Port Zero creates and maintains software systems, with an eye for security, data privacy and…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 | ||||
“WALLSEC specializes in penetration testing and security audits for critical enterprise IT.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 | ||||
“Mantodea Security bietet Ihnen qualitativ hochwertige und umfassende Penetration Tests im gesamten IT-Umfeld.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 | ||||
“Our experienced cyber security experts help you protect your applications and systems and implement progressive cyber security, cloud and penetration test concepts.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 | ||||
“EINFACH.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 137 interactive application security testing companies based in Germany
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Interactive application security testing companies based in Germany at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 interactive application security testing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Germany whose own description of what they do matches “interactive application security testing companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among interactive application security testing 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 an evidence 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, 404 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 4, 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
How many interactive application security testing companies are there based in Germany?
RevenueBase identified 137 interactive application security testing 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?
USD AG, headquartered in Neu-Isenburg, tops this list with the largest team on record.
Which city has the most interactive application security testing companies?
Berlin leads with 22 headquartered companies, followed by Munich (9) and Hamburg (6).
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 404 verified decision-maker contacts tracked across these 137 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 4, 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 SmartSearch, 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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