Company lists · Data refreshed September 2026

Top 25 Industrial control system security contractors based in Germany

Name: Industrial control system security contractors based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 205 companies tracked

RevenueBase identified 205 industrial control system security contractors headquartered in Germany as of September 2026 and tracks 1,691 professional contacts across them, including 559 with verified work emails. Berlin is the largest hub.

This list covers industrial control system security contractors 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 28, 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 28, 2026 86% judged on-target in blind review

205Companies

1,691Contacts tracked

559Verified emails

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The 25 largest industrial control system security contractors based in Germany

Ranked by team size

Top 25 of 205 industrial control system security contractors based in Germany, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial control system security contractors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	SRC Security Research And Consulting Gmbh	Partial evidence	Bonn, GermanyHQ checked Sep 28, 2026	51-200	67 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 28, 2026
2	Mispa Technologies Gmbh	Partial evidence	Langenfeld (rheinland), GermanyHQ checked Sep 28, 2026	51-200	63 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 28, 2026
3	Ciborius Gruppe	Partial evidence	Berlin, GermanyHQ checked Sep 28, 2026	1,001-5,000	40 contacts →
	Partial evidence “CIBORIUS SECURITY – IHR PARTNER FÜR INTEGRIERTE SICHERHEITSLÖSUNGEN Seit 2006 steht die inhabergeführte CIBORIUS Gruppe für maßgeschneiderte Sicherheits- und…” Source: RevenueBase Database · checked Sep 28, 2026
4	Ecoprotec Gmbh	Partial evidence	Paderborn, GermanyHQ checked Sep 28, 2026	51-200	38 contacts →
	Partial evidence “For 25 years we have been THE contact in Germany when it comes to security in your company.” Source: RevenueBase Database · checked Sep 28, 2026
5	Admeritia Gmbh	Strong evidence	Langenfeld, GermanyHQ checked Sep 28, 2026	11-50	37 contacts →
	Strong evidence “As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.” Source: RevenueBase Database · checked Sep 28, 2026
6	Sama Partners Business Solutions Gmbh	Indirect evidence	Mannheim, GermanyHQ checked Sep 28, 2026	51-200	33 contacts →
	Indirect evidence “SAMA PARTNERS Business Solutions ist ein unabhängiges Beratungs- und Engineering-Unternehmen mit Hauptsitz in Mannheim, mit den Schwerpunkten Informationssicherheit, KI und…” Source: RevenueBase Database · checked Sep 28, 2026
7	Ausecus Gmbh	Partial evidence	Augsburg, GermanyHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).” Source: RevenueBase Database · checked Sep 28, 2026
8	MGM Security Partners Gmbh	Partial evidence	Munich, GermanyHQ checked Sep 28, 2026	11-50	28 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 28, 2026
9	VZM VON ZUR Mühlen Sche Gmbh	Indirect evidence	Bonn, GermanyHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “VZM ist ein unabhängiges Beratungs- und Ingenieurunternehmen für Sicherheitskonzepte, Resilienz und technische Infrastrukturen.” Source: RevenueBase Database · checked Sep 28, 2026
10	Rhebo OT & Iiot Security	Partial evidence	Leipzig, GermanyHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “Rhebo provides simple and effective cybersecurity solutions for Operational Technology and distributed industrial assets for the energy sector, critical infrastructure and…” Source: RevenueBase Database · checked Sep 28, 2026
11	Consistec Engineering & Consulting Gmbh	Indirect evidence	Saarbruecken, GermanyHQ checked Sep 28, 2026	51-200	23 contacts →
	Indirect evidence “Die im Mai gegründete consistec Engineering & Consulting GmbH ist ein inhabergeführtes mittelständisches Unternehmen mit Sitz in Saarbrücken, Saarland.” Source: RevenueBase Database · checked Sep 28, 2026
12	Enbw Cyber Security Gmbh	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Digitale Bedrohungen wachsen – und damit unsere Verantwortung.” Source: RevenueBase Database · checked Sep 28, 2026
13	Secori	Partial evidence	Frankfurt, GermanyHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “secori advisors is a management consultancy with a focus on security, risk, and compliance.” Source: RevenueBase Database · checked Sep 28, 2026
14	Incyde	Strong evidence	Berlin, GermanyHQ checked Sep 28, 2026	11-50	20 contacts →
	Strong evidence “We turn your INdustrial CYber DEfense on, respecting your special operating systems and requirements for efficient and effective security measures, including Railways, Automotive…” Source: RevenueBase Database · checked Sep 28, 2026
15	Atarax Unternehmensgruppe	Indirect evidence	Herzogenaurach, GermanyHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Die atarax Unternehmensgruppe ist ein flexibles Team mit dem Schwerpunkt strategische Unternehmenssicherheit.” Source: RevenueBase Database · checked Sep 28, 2026
16	Link Protect Gmbh	Indirect evidence	Bayern, GermanyHQ checked Sep 28, 2026	51-200	19 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 28, 2026
17	Schutzwerk Gmbh	Partial evidence	Ulm, GermanyHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “SCHUTZWERK GmbH is an international IT security consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
18	Rt-Solutions.De Gmbh	Indirect evidence	Köln, GermanyHQ checked Sep 28, 2026	51-200	18 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 28, 2026
19	DS Data Systems Gmbh	Partial evidence	Braunschweiger, GermanyHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Full-Hand Security – Integrating Governance, Cyber & Physical Protection Wir schützen Unternehmen, Organisationen und Behörden umfassend vor Cyberangriffen, Datenverlusten…” Source: RevenueBase Database · checked Sep 28, 2026
20	GAI Netconsult Gmbh	Partial evidence	Berlin, GermanyHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Die GAI NetConsult GmbH ist ein in Deutschland und dem benachbarten Ausland tätiges, unabhängiges Beratungsunternehmen für IT- und OT-Security mit Hauptsitz in Berlin.” Source: RevenueBase Database · checked Sep 28, 2026
21	BXC Security	Partial evidence	Hallbergmoos, GermanyHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “BxC Security focuses on delivering end-to-end cyber security consulting across IT and Production environments.” Source: RevenueBase Database · checked Sep 28, 2026
22	Diesec	Partial evidence	Darmstadt, GermanyHQ checked Sep 28, 2026	51-200	16 contacts →
	Partial evidence “DIESEC, founded by Carl Dietzel in 2009, is dedicated to securing your most valuable asset - your data.” Source: RevenueBase Database · checked Sep 28, 2026
23	Protea Networks Gmbh	Indirect evidence	Unterhaching, GermanyHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Protection with Passion Seit über 20 Jahren entwickeln und implementieren wir Sicherheitsstrategien, die den Unternehmenserfolg unserer Kunden in den Mittelpunkt stellen.” Source: RevenueBase Database · checked Sep 28, 2026
24	Protectone	Partial evidence	Düsseldorf, GermanyHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “protectONE - akkreditiertes und autorisiertes Consulting- & Trainingsunternehmen für IT Security Lösungen.” Source: RevenueBase Database · checked Sep 28, 2026
25	Maconia Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “UNSERE VISION Komplexe Risiken, exzellente Beratung, klare Lösungen: MACONIA schützt Unternehmen und Institutionen!” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: industrial control system security contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names industrial control system security contractors.
Partial evidence: Its own public description names part of industrial control system security contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial control system security contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 205 industrial control system security contractors based in Germany

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Industrial control system security contractors based in Germany at a glance

As of Sep 28, 2026

33.1%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

10.2%Largest-city concentration · Berlin

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

1,001-5,000

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 205 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 industrial control system security contractors, 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 “industrial control system security contractors”. 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 industrial control system security contractors), 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 industrial control system security contractors, 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, 559 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 28, 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 industrial control system security contractors, 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 industrial control system security contractors are there based in Germany?

RevenueBase identified 205 industrial control system security contractors 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?

SRC Security Research And Consulting Gmbh, headquartered in Bonn, tops this list with the largest team on record.

Which city has the most industrial control system security contractors?

Berlin leads with 21 headquartered companies, followed by Frankfurt (8) and Munchen (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 559 verified decision-maker contacts tracked across these 205 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 28, 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.