Company lists · Data refreshed September 2026
Top 25 Cybersecurity IT support companies based in Germany
RevenueBase identified 1,131 cybersecurity IT support companies headquartered in Germany as of September 2026 and tracks 8,483 professional contacts across them, including 3,230 with verified work emails. Berlin is the largest hub.
This list covers cybersecurity IT support 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 21, 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.
The 25 largest cybersecurity IT support companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 623 contacts → | ||||
Indirect evidence “secunet – We are the Guardians of Europe's Digital Freedom.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 386 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 363 contacts → | ||||
Indirect evidence “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 222 contacts → | ||||
Partial evidence “DTS Systeme steht als erfolgreicher IT-Dienstleister seit über 40 Jahren deutschland- und europaweit für Innovation, Kompetenz sowie Leidenschaft.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 187 contacts → | ||||
Strong evidence “Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 130 contacts → | ||||
Indirect evidence “Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 81 contacts → | ||||
Partial evidence “Exclusive Networks ist ein globaler Cybersecurity- und Netzwerk-Spezialist, der Partnern und Endkunden über bewährte Vertriebswege und auf der Grundlage des technischen Know-hows…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 79 contacts → | ||||
Indirect evidence “Conscia – Ihr Digitalisierungspartner.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 79 contacts → | ||||
Partial evidence “r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 77 contacts → | ||||
Indirect evidence “8COM is a leading Managed Security Service Provider (MSSP).” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 73 contacts → | ||||
Indirect evidence “SECUINFRA, expert and partner for cyber defense, has specialized in the detection, analysis and defense against cyber attacks since 2010.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 69 contacts → | ||||
Partial evidence “Link11 is a leading European manufacturer of cloud-based cybersecurity solutions that helps businesses and public authorities in critical infrastructure stay online, no matter…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 69 contacts → | ||||
Indirect evidence “ditis - The Security Company!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 66 contacts → | ||||
Partial evidence “BaseBeyond delivers scalable, international IT services – uniquely combining centralized coordination with our own local experts on the ground.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 66 contacts → | ||||
Partial evidence “Als Managed Security Service Provider aus München unterstützen wir Unternehmen darin, eine starke und resiliente IT aufzubauen, zu verwalten und weiterzuentwickeln.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 65 contacts → | ||||
Indirect evidence “indevis GmbH tritt seit März 2026 unter der neuen Marke Argos Security GmbH auf.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 55 contacts → | ||||
Partial evidence “Systema Datentechnik ist ein führender IT-Dienstleister mit Spezialisierung auf IT-Service Management (ITSM), IT-Security und Managed Services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 54 contacts → | ||||
Strong evidence “water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 52 contacts → | ||||
Partial evidence “Just stronger Cybersecurity - Bestmöglichen Schutz vor Cyberangriffen aufzubauen und auf hohem Niveau zu halten, ist Kernkompetenz der concentrade.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 52 contacts → | ||||
Partial evidence “The digitized world requires uncompromising IT security to protect organizations, individuals, and services from cyber risks and data loss, ensuring safe digital environments for…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 51 contacts → | ||||
Indirect evidence “Medialine Security – 360° Cyber Security Expertise Innerhalb der Medialine Group sind wir das Competence Center für Cybersicherheit.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Indirect evidence “Networks are the backbone of modern organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 49 contacts → | ||||
Indirect evidence “ProSec GmbH verwandelt Unternehmen in digitale Festungen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 49 contacts → | ||||
Indirect evidence “ü Mit über 30 Jahren Erfahrung stehen wir Unternehmen zur Seite, wenn es darum geht, Technologie zur echten Wertschöpfung zu machen, nicht zur Belastung.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: cybersecurity IT support companies. 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 cybersecurity IT support companies.
- Partial evidence
- Its own public description names part of cybersecurity IT support companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cybersecurity IT support companies. 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 1,131 cybersecurity IT support companies based in Germany
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,230 reachable decision-makers.
Free signup · no credit card
Cybersecurity IT support companies based in Germany at a glance
As of Sep 21, 2026Companies by employee count
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 1,131 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 IT support 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 IT support 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 IT support 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 IT support 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, 3,230 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 21, 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.
Cybersecurity IT support companies by metro
- Cybersecurity IT support companies in Berlin74
- Cybersecurity IT support companies in Munich34
- Cybersecurity IT support companies in Munchen32
- Cybersecurity IT support companies in Hamburg30
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 IT support 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 IT support companies are there based in Germany?
RevenueBase identified 1,131 cybersecurity IT support 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?
Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.
Which city has the most cybersecurity IT support companies?
Berlin leads with 74 headquartered companies, followed by Munich (34) and Munchen (32).
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 3,230 verified decision-maker contacts tracked across these 1,131 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,131 cybersecurity IT support companies based in Germany. Start with a free account, no credit card.
Download this list →Related lists
Cybersecurity IT support companies by geography
- Cybersecurity IT support companies based in Adelaide, Australia
- Cybersecurity IT support companies based in Brisbane, Australia
- Cybersecurity IT support companies based in Canberra, Australia
- Cybersecurity IT support companies based in Melbourne, Australia
- Cybersecurity IT support companies based in North Sydney, Australia
- Cybersecurity IT support companies based in Perth, Australia
- Cybersecurity IT support companies based in Sydney, Australia
- Cybersecurity IT support companies based in Barueri, Brazil
- Cybersecurity IT support companies based in Belo Horizonte, Brazil
- Cybersecurity IT support companies based in Brasilia, Brazil
- Cybersecurity IT support companies based in Curitiba, Brazil
- Cybersecurity IT support companies based in Porto Alegre, Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cybersecurity IT support companies based in Adelaide, Australia
- Cybersecurity IT support companies based in Brisbane, Australia
- Cybersecurity IT support companies based in Canberra, Australia
- Cybersecurity IT support companies based in Melbourne, Australia
- Cybersecurity IT support companies based in North Sydney, Australia
- Cybersecurity IT support companies based in Perth, Australia