Company lists · Data refreshed November 2026

Top 25 Ot security companies based in Germany

RevenueBase identified 52 company matches for ot security companies associated with Germany as of November 2026 and tracks 773 professional contacts across them, including 296 with verified work emails. Berlin is the largest hub.

This list covers company matches for ot security 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 November 5, 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 Nov 5, 2026 How this list was built
52Companies
773Contacts tracked
296Verified emails
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The 25 largest ot security companies based in Germany

Ranked by team size
Top 25 of 52 company matches for ot security companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchWuppertal, GermanyHQ recorded Nov 5, 202651-20084 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLübeck, GermanyHQ recorded Nov 5, 202651-20053 contacts →

Exact match

“We are a leading provider for production security and efficiency.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLangenfeld, GermanyHQ recorded Nov 5, 202611-5045 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchAugsburg, GermanyHQ recorded Nov 5, 202611-5039 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchLöhne, GermanyHQ recorded Nov 5, 202651-20028 contacts →

Exact match

“digit solutions GmbH is a leading German company in the field of cybersecurity, founded in 1995.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchBremen, GermanyHQ recorded Nov 5, 202651-20026 contacts →

Exact match

“Mehr Schutz vor Angriffen aus dem Cyberraum: Cyberkriminalität ist eine der größten Bedrohungen unserer Zeit.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMunich, GermanyHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“AVIANET GmbH is a global business technology company headquartered in Munich that provides disruptive IT/OT cybersecurity services, IoT and Industrial Automation, Corporate IT…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSaarbruecken, GermanyHQ recorded Nov 5, 202651-20026 contacts →

Exact match

“Wir sind Hersteller der caplon©-Monitoring Systeme.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLeipzig, GermanyHQ recorded Nov 5, 202611-5025 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“We turn your INdustrial CYber DEfense on, respecting your special operating systems and requirements for efficient and effective security measures, including Railways, Automotive…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchStolberg, GermanyHQ recorded Nov 5, 202651-20022 contacts →

Exact match

“We translate challenges of digitization into secure IT/OT solutions The digital transformation of industry is leading to an increasingly complex networking of machines, systems…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBerlin, GermanyHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Die GAI NetConsult GmbH ist ein in Deutschland und dem benachbarten Ausland tätiges, unabhängiges Beratungsunternehmen für IT- und OT-Security mit Hauptsitz in Berlin.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchHallbergmoos, GermanyHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“BxC Security focuses on delivering end-to-end cyber security consulting across IT and Production environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchDortmund, GermanyHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Yekta IT GmbH ist eine herstellerunabhängige IT- und OT-Sicherheitsberatung mit über 15 Jahren Erfahrung in der Cybersecurity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchHamburg, GermanyHQ recorded Nov 5, 202611-509 contacts →

Exact match

“Im Kern sind wir ein smart-empathisches Ingenieurbüro für anspruchsvolle Security-Projekte in der OT.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMannheim, GermanyHQ recorded Nov 5, 202611-509 contacts →

Exact match

“Founded in 2021 our fast-growing team of CyberSecurity experts in different focus-areas directly related to Operational Technologies went on the mission to provide our customers…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBonn, GermanyHQ recorded Nov 5, 20261-108 contacts →

Exact match

“Willkommen bei EnBITCon - Ihrem zuverlässigen Partner für IT-Dienstleistungen!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchCologne, GermanyHQ recorded Nov 5, 202611-506 contacts →

Exact match

“High-Level Cybersecurity für IT und OT-Sicherheit in Ihrem Unternehmen AwareTec® ist ein deutsches Cybersicherheitsunternehmen mit globaler Präsenz.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchKarlsruhe, GermanyHQ recorded Nov 5, 202651-2005 contacts →

Exact match

“OT-Security für die Produktion: Mit unseren Managed Services schützen wir Ihre Anlagen vor Cyberangriffen und Ausfällen – denn Stillstand in der Produktion kostet ab der ersten…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchDüsseldorf, GermanyHQ recorded Nov 5, 202611-505 contacts →

Exact match

“Die Connectpoint ist ein Software- und IT-Unternehmen, das den Prozess des digitalen Wandels in der Industrie, im Energiesektor und im öffentlichen Versorgungsbereich unterstützt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchHeiligenhaus, GermanyHQ recorded Nov 5, 2026n/a5 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBerlin, GermanyHQ recorded Nov 5, 20261-104 contacts →

Exact match

“The convergence of IT, IoT, and OT (Operational Technology) environments has increased the complexity and vulnerability of OT networks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBerlin, GermanyHQ recorded Nov 5, 20261-103 contacts →

Exact match

“PURE SICHERHEIT KANN SO BERUHIGEND SEIN Zu unseren Kunden zählen Unternehmen aus den Bereichen der Energieversorgung, Industrietechnik, Immobilienverwaltung und Produktion, sowie…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchNuremberg, GermanyHQ recorded Nov 5, 202611-503 contacts →

Exact match

“Gravitate betreut über 100 Kunden in Deutschland, Österreich und der Schweiz und bietet spezialisierte Lösungen im Bereich IT-Security und Observability.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchReutlingen, GermanyHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Die Voleatech GmbH ist eine Network Company, die sich auf OT-Network-Security spezialisiert hat.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 52 ot security companies based in Germany

See the full list, filter by size, metro and specialty, and access 296 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ot security companies based in Germany at a glance

As of Nov 5, 2026
38.3%Verified-email coverage
14.9Average contacts per company
11-50Median size (employees)
15.4%Largest-city concentration · Berlin
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
23
51-200
12

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 52 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 “ot security 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 296 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 November 5, 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 “ot security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ot security companies are there based in Germany?

RevenueBase identified 52 company matches for ot security companies associated with Germany as of November 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?

R-Tec IT Security Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ot security companies?

Berlin leads with 8 company records, followed by Bonn (2) and Cologne (2).

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 296 professional contacts with verified work emails tracked across these 52 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 November 5, 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.