Company lists · Data refreshed September 2026

Top 25 Cybersecurity companies for power systems companies based in Germany

RevenueBase identified 45 cybersecurity companies for power systems companies headquartered in Germany as of September 2026 and tracks 847 professional contacts across them, including 376 with verified work emails. Berlin is the largest hub.

This list covers cybersecurity companies for power systems companies 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
45Companies
847Contacts tracked
376Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity companies for power systems companies based in Germany

Ranked by team size
Top 25 of 45 cybersecurity companies for power systems companies 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 cybersecurity companies for power systems companies: 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 28, 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 28, 2026
2Indirect evidenceWuppertal, GermanyHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceDüsseldorf, GermanyHQ checked Sep 28, 202651-20054 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceMendig, GermanyHQ checked Sep 28, 202651-20049 contacts →

Indirect evidence

“ProSec GmbH verwandelt Unternehmen in digitale Festungen.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceAugsburg, GermanyHQ checked Sep 28, 202611-5031 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceLeipzig, GermanyHQ checked Sep 28, 202611-5027 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
7Indirect evidenceBremen, GermanyHQ checked Sep 28, 202651-20026 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceKarlsruhe, GermanyHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceBerlin, GermanyHQ checked Sep 28, 202611-5020 contacts →

Partial 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
10Indirect evidenceAugsburg, GermanyHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“IT-Sicherheit, die schützt, bevor es kritisch wird!”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceDarmstadt, GermanyHQ checked Sep 28, 202611-5012 contacts →

Strong evidence

“We are SANCTUARY Systems, a cybersecurity company from Darmstadt, Germany.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“ujima ist ein führender Anbieter von Cyber-Sicherheitslösungen.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceObrigheim, GermanyHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Information Security for critical infrastructures”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceFürth, GermanyHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“iKomm GmbH – Ihr Partner für ganzheitliche IT- Security Lösungen Die iKomm GmbH ist seit 1998 ein spezialisiertes IT- Security Unternehmen mit Sitz in Fürth bei Nürnberg, das…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceMannheim, GermanyHQ checked Sep 28, 202611-506 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceFredersdorf, GermanyHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“Der Gegenstand des Unternehmens – die gesicherte Stromversorgung – als komplexe Lösung verstanden, ist die Grundidee.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceMunich, GermanyHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“We are an international company with Headquarters in Europe and North America.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceKöln, GermanyHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceWedel, GermanyHQ checked Sep 28, 20261-104 contacts →

Strong evidence

“Wir beschäftigen uns mit IT/OT-Systemintegration und Cybersecurity für die Erneuerbare-Energien-Branche.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceKoln, GermanyHQ checked Sep 28, 2026501-1,0003 contacts →

Indirect evidence

“Wir machen die digitale Welt für Sie und Ihr Business einfach sicher.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceMünchen, GermanyHQ checked Sep 28, 202611-502 contacts →

Indirect evidence

“At myResilience GmbH, we offer companies maximum protection against existential cyber attacks with our modularly designed security services.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceBerlin, GermanyHQ checked Sep 28, 202611-502 contacts →

Partial evidence

“Secure Sphere Labs: Your Shield in the Digital World Company Overview: At Secure Sphere Labs, we are dedicated to fortifying your digital presence with cutting-edge cybersecurity…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceNürnberg, GermanyHQ checked Sep 28, 202611-502 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceHannover, GermanyHQ checked Sep 28, 202611-501 contacts →

Partial evidence

“Legacy Technologies GmbH provides cybersecurity for businesses and the national level.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceBad Oldesloe, GermanyHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“IT-Security aus Bad Oldesloe – regional verwurzelt – deutschlandweit aktiv.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 45 cybersecurity companies for power systems companies based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 376 reachable decision-makers.

Free signup · no credit card

View the full list →

Cybersecurity companies for power systems companies based in Germany at a glance

As of Sep 28, 2026
44.4%Verified-email coverage
18.8Average contacts per company
11-50Median size (employees)
6.7%Largest-city concentration · Berlin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
21
51-200
5
501-1,000
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 45 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 cybersecurity companies for power systems companies, 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 “cybersecurity companies for power systems companies”. 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 cybersecurity companies for power systems companies), 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 cybersecurity companies for power systems companies, 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, 376 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 cybersecurity companies for power systems companies, 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 cybersecurity companies for power systems companies are there based in Germany?

RevenueBase identified 45 cybersecurity companies for power systems companies 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 cybersecurity companies for power systems companies?

Berlin leads with 3 headquartered companies, followed by Koln (3) and Munchen (3).

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 376 verified decision-maker contacts tracked across these 45 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.

Ready to reach these companies? Verified emails and direct dials for all 45 cybersecurity companies for power systems companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

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.