Company lists · Data refreshed September 2026

Top 25 Critical infrastructure security consulting companies based in Germany

RevenueBase identified 612 company matches for critical infrastructure security consulting companies associated with Germany as of September 2026 and tracks 4,664 professional contacts across them, including 1,560 with verified work emails. Berlin is the largest hub.

This list covers company matches for critical infrastructure security consulting companies associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
612Companies
4,664Contacts tracked
1,560Verified emails
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The 25 largest critical infrastructure security consulting companies based in Germany

Ranked by team size
Top 25 of 612 company matches for critical infrastructure security consulting companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchEssen, GermanyHQ recorded Sep 27, 20261,001-5,000623 contacts →

Exact match

“secunet – We are the Guardians of Europe's Digital Freedom.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchNeu-isenburg, GermanyHQ recorded Sep 27, 202651-200130 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchWuppertal, GermanyHQ recorded Sep 27, 202651-20079 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchUlm, GermanyHQ recorded Sep 27, 202651-20069 contacts →

Exact match

“ditis - The Security Company!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchBonn, GermanyHQ recorded Sep 27, 202651-20067 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchLangenfeld (rheinland), GermanyHQ recorded Sep 27, 202651-20063 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchDüsseldorf, GermanyHQ recorded Sep 27, 202651-20054 contacts →

Exact match

“water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchDortmund, GermanyHQ recorded Sep 27, 202651-20052 contacts →

Exact match

“Just stronger Cybersecurity - Bestmöglichen Schutz vor Cyberangriffen aufzubauen und auf hohem Niveau zu halten, ist Kernkompetenz der concentrade.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Sep 27, 202651-20051 contacts →

Exact match

“proXcel is a specialized management consultancy focused on information security and digital resilience.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchGarching, GermanyHQ recorded Sep 27, 202651-20046 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchBerlin, GermanyHQ recorded Sep 27, 202651-20040 contacts →

Exact match

“Wir von B.I.N.S.S.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchHamburg, GermanyHQ recorded Sep 27, 202651-20040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLangenfeld, GermanyHQ recorded Sep 27, 202611-5037 contacts →

Exact match

“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchMannheim, GermanyHQ recorded Sep 27, 202651-20033 contacts →

Exact match

“SAMA PARTNERS Business Solutions ist ein unabhängiges Beratungs- und Engineering-Unternehmen mit Hauptsitz in Mannheim, mit den Schwerpunkten Informationssicherheit, KI und…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchDüsseldorf, GermanyHQ recorded Sep 27, 202611-5032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchAugsburg, GermanyHQ recorded Sep 27, 202611-5031 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchBonn, GermanyHQ recorded Sep 27, 202651-20031 contacts →

Exact match

“At 2B Advice, we are the trusted partner in integrated risk management, helping businesses navigate data protection, compliance, and risk with confidence.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchBensheim, GermanyHQ recorded Sep 27, 202651-20029 contacts →

Exact match

“EHBS Knecht GmbH & Co.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Sep 27, 202611-5028 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchBonn, GermanyHQ recorded Sep 27, 202611-5028 contacts →

Exact match

“VZM ist ein unabhängiges Beratungs- und Ingenieurunternehmen für Sicherheitskonzepte, Resilienz und technische Infrastrukturen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLeipzig, GermanyHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“Rhebo provides simple and effective cybersecurity solutions for Operational Technology and distributed industrial assets for the energy sector, critical infrastructure and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMunich, GermanyHQ recorded Sep 27, 202611-5026 contacts →

Exact match

“CYQUEO secures digital communication and business processes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchBonn, GermanyHQ recorded Sep 27, 202611-5025 contacts →

Exact match

“Over the last 20 years, unival group has become one of the leading integrators and solution providers for complex and redundant security systems for the protection of public and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchBad Oldesloe, GermanyHQ recorded Sep 27, 202611-5023 contacts →

Exact match

“Aus s-consit wird ETL consit.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchSaarbruecken, GermanyHQ recorded Sep 27, 202651-20023 contacts →

Exact match

“Die im Mai gegründete consistec Engineering & Consulting GmbH ist ein inhabergeführtes mittelständisches Unternehmen mit Sitz in Saarbrücken, Saarland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 612 critical infrastructure security consulting companies based in Germany

See the full list, filter by size, metro and specialty, and access 1,560 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Critical infrastructure security consulting companies based in Germany at a glance

As of Sep 27, 2026
33.4%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · Berlin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
361
11-50
195
51-200
38
201-500
8
501-1,000
3
1,001-5,000
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 612 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Germany whose business descriptions match “critical infrastructure security consulting companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,560 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “critical infrastructure security consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many critical infrastructure security consulting companies are there based in Germany?

RevenueBase identified 612 company matches for critical infrastructure security consulting companies associated with Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Secunet Security Networks AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most critical infrastructure security consulting companies?

Berlin leads with 50 company records, followed by Munich (44) and Cologne (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,560 professional contacts with verified work emails tracked across these 612 companies; direct dials are available where recorded.

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 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.