Company lists · Data refreshed September 2026
Top 25 IT security consulting firms based in Germany
RevenueBase identified 961 IT security consulting firms headquartered in Germany as of September 2026 and tracks 9,727 professional contacts across them, including 3,568 with verified work emails and 234 with mobile numbers. Berlin is the largest hub.
This list covers IT security consulting firms 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 IT security consulting firms based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 928 | ||||
“At BCG Platinion, we leverage our expertise alongside the unique experiences of our teams to accelerate digital transformations for our clients.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 620 | ||||
“secunet – Protecting Digital Infrastructures secunet is Germany’s leading cybersecurity company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 389 | ||||
“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: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 360 | ||||
“We believe in a secure digital future with minimal risk and maximum opportunities.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 131 | ||||
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 83 | ||||
“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 | ||||
“neam IT-Services GmbH – founded in 1996 – is a Systems Integrator based in Paderborn, Germany and operating in various projects all over Europe.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 70 | ||||
“intersoft consulting ist ein spezialisiertes Beratungsunternehmen in den Bereichen Datenschutz, IT-Sicherheit und IT-Forensik.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 70 | ||||
“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: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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. | |||||
| 11 | 69 | ||||
“SRC Security Research & Consulting is committed to providing service in the areas of information technology and information security.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 68 | ||||
“ditis - The Security Company!” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 63 | ||||
“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: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 61 | ||||
“ADVISORI FTC GmbH is an award-winning management consultancy based in Frankfurt am Main, Germany, specializing in information security, digital transformation, regulatory…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 59 | ||||
“TRUSTEQ GmbH bietet Beratungsleistungen mit Fokus auf AI, Cybersecurity, Data & Tech Transformation und Cloud an - ACDC!” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 55 | ||||
“water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 53 | ||||
“Dürfen wir uns vorstellen?” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 52 | ||||
“proXcel is a specialized management consultancy focused on information security and digital resilience.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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. | |||||
| 20 | 51 | ||||
“Just stronger Cybersecurity - Beratung, Konzeption, Umsetzung und Aufrechterhaltung von Maßnahmen rund um die IT-Security gehört zu unseren Leistungen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 51 | ||||
“Medialine Security – 360° Cyber Security Expertise Seit über 30 Jahren schützen wir Unternehmen vor Cyberbedrohungen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 | ||||
“Networks are the backbone of modern organizations.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 | ||||
“ProSec GmbH verwandelt Unternehmen in digitale Festungen.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 46 | ||||
“HvS-Consulting AG is consulting large and medium-sized companies on the topic of cyber security since 2002.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 | ||||
“Our SAP consulting firm, based in Fulda, is at the forefront of innovation in the field of SAP Security.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 961 IT security consulting firms based in Germany
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IT security consulting firms 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 IT security consulting firms, 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 “IT security consulting firms”. 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 IT security consulting firms, 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, 3,568 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.
IT security consulting firms by metro
Frequently asked
How many IT security consulting firms are there based in Germany?
RevenueBase identified 961 IT security consulting firms 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?
BCG Platinion, headquartered in Dusseldorf, tops this list with the largest team on record.
Which city has the most IT security consulting firms?
Berlin leads with 83 headquartered companies, followed by Hamburg (31) and Munchen (29).
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 3,568 verified decision-maker contacts tracked across these 961 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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