Company lists · Data refreshed September 2026

Top 25 Application security consultants based in Germany

RevenueBase identified 380 application security consultants headquartered in Germany as of September 2026 and tracks 3,264 professional contacts across them, including 1,425 with verified work emails. Berlin is the largest hub.

This list covers application security consultants 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 27, 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 27, 2026 86% judged on-target in blind review
380Companies
3,264Contacts tracked
1,425Verified emails
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The 25 largest application security consultants based in Germany

Ranked by team size
Top 25 of 380 application security consultants based in Germany, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to application security consultants: 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 evidenceBochum, GermanyHQ checked Sep 27, 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 27, 2026
2Indirect evidenceBonn, GermanyHQ checked Sep 27, 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 27, 2026
3Indirect evidenceNeu-isenburg, GermanyHQ checked Sep 27, 202651-200130 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceWuppertal, GermanyHQ checked Sep 27, 202651-20079 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceUlm, GermanyHQ checked Sep 27, 202651-20069 contacts →

Partial evidence

“ditis - The Security Company!”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceTübingen, GermanyHQ checked Sep 27, 202651-20069 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 27, 2026
7Partial evidenceBonn, GermanyHQ checked Sep 27, 202651-20067 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceLangenfeld (rheinland), GermanyHQ checked Sep 27, 202651-20063 contacts →

Partial evidence

“We, mispa Technologies GmbH, a leading IT security and service provider, deliver consulting, design and managed services to help our customers get the most out of their IT…”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceMendig, GermanyHQ checked Sep 27, 202651-20049 contacts →

Indirect evidence

“ProSec GmbH verwandelt Unternehmen in digitale Festungen.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceMunich, GermanyHQ checked Sep 27, 202651-20048 contacts →

Indirect evidence

“On March 2, 2026, OneSpan and Build38 came together to strengthen OneSpan’s core objective of protecting high-value mobile interactions.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceGarching, GermanyHQ checked Sep 27, 202651-20046 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceHamburg, GermanyHQ checked Sep 27, 202651-20040 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceWolnzach, GermanyHQ checked Sep 27, 202651-20037 contacts →

Indirect evidence

“Ihr SOC-Partner im DACH-Mittelstand.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceNeu-Isenburg, GermanyHQ checked Sep 27, 202651-20034 contacts →

Indirect evidence

“Wir sind die Com-Sys!”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceDüsseldorf, GermanyHQ checked Sep 27, 202611-5032 contacts →

Partial evidence

“CLOUDYRION is a start-up for IT security consulting from Düsseldorf.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceAugsburg, GermanyHQ checked Sep 27, 202611-5031 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceMunich, GermanyHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

“Simplifying Your Security Journey Welcome to mgm security partners GmbH – your reliable partner for simple and effective IT security solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceMartinsried, GermanyHQ checked Sep 27, 202651-20026 contacts →

Partial evidence

“microCAT ist ein führender Full-Service-Provider für IT-Produkte und -Dienstleistungen mit einem klaren Fokus auf IT-Security.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceUlm, GermanyHQ checked Sep 27, 202651-20024 contacts →

Indirect evidence

“CODE WHITE is specialized in high-end red teaming, continuous attack surface management and threat intelligence since 2014.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceKarlsruhe, GermanyHQ checked Sep 27, 202611-5022 contacts →

Indirect evidence

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceStuttgart, GermanyHQ checked Sep 27, 202611-5021 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceBayern, GermanyHQ checked Sep 27, 202651-20019 contacts →

Indirect evidence

“link protect GmbH is an information technology and services company based out of Münchner Straße 92, Kirchseeon, Bavaria, Germany.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceLangen, GermanyHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

“Das Leistungsspektrum der BRISTOL GROUP reicht von der Beratung über die Konzeption, Implementierung und Integration von Software- und Hardware-Lösungen bis hin zu Schulung und…”

Source: RevenueBase Database · checked Sep 27, 2026
24Strong evidenceUlm, GermanyHQ checked Sep 27, 202611-5019 contacts →

Strong evidence

“SCHUTZWERK GmbH is an international IT security consultancy.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceKöln, GermanyHQ checked Sep 27, 202651-20018 contacts →

Indirect evidence

“Durch unsere Beratung helfen wir unseren Kunden die Sicherheit und Effizienz ihrer IT nachhaltig zu steigern und ihre IT-Risiken zu kontrollieren.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 380 application security consultants based in Germany

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Application security consultants based in Germany at a glance

As of Sep 27, 2026
43.7%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
11.1%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
234
11-50
121
51-200
21
201-500
1
501-1,000
1
1,001-5,000
1

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 380 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 application security consultants, 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 “application security consultants”. 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 application security consultants), 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 application security consultants, 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, 1,425 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 27, 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.

Application security consultants by metro

  • Application security consultants in Berlin42

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 application security consultants, 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 application security consultants are there based in Germany?

RevenueBase identified 380 application security consultants 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?

G Data Cyberdefense, headquartered in Bochum, tops this list with the largest team on record.

Which city has the most application security consultants?

Berlin leads with 42 headquartered companies, followed by Munich (22) and Hamburg (15).

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 1,425 verified decision-maker contacts tracked across these 380 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 27, 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.