Company lists · Data refreshed September 2026

Top 25 Cloud security managed service providers based in Germany

RevenueBase identified 133 cloud security managed service providers headquartered in Germany as of September 2026 and tracks 2,307 professional contacts across them, including 1,023 with verified work emails. Hamburg is the largest hub.

This list covers cloud security managed service providers 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 27, 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 27, 2026 86% judged on-target in blind review
133Companies
2,307Contacts tracked
1,023Verified emails
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The 25 largest cloud security managed service providers based in Germany

Ranked by team size
Top 25 of 133 cloud security managed service providers based in Germany, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cloud security managed service providers: 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
1Strong evidenceHannover, GermanyHQ checked Sep 27, 2026501-1,000474 contacts →

Strong evidence

“Hornetsecurity is a leading global provider of next-generation cloud-based security, compliance, backup, and security awareness solutions that help companies and organizations of…”

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceCologne, GermanyHQ checked Sep 27, 2026201-500208 contacts →

Strong evidence

“Your cloud partner plusserver is the managed cloud service provider for small and medium-sized enterprises.”

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceOffenbach, GermanyHQ checked Sep 27, 2026201-500199 contacts →

Strong evidence

“glueckkanja, a renowned cloud managed service provider, is a TOP Microsoft partner offering comprehensive cloud solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
4Strong evidenceEttlingen, GermanyHQ checked Sep 27, 2026201-500176 contacts →

Strong evidence

“NetPlans ist ein global agierender Managed Service Provider mit über 400 IT Experten, der sich auf innovative Cloud-Lösungen samt eigener Business Cloud in Deutschland…”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceDortmund, GermanyHQ checked Sep 27, 202651-20093 contacts →

Indirect evidence

“Operate the Future.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceMünchen, GermanyHQ checked Sep 27, 202651-20066 contacts →

Strong 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 27, 2026
7Partial evidenceDüsseldorf, GermanyHQ checked Sep 27, 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 27, 2026
8Partial evidenceMuenchen, GermanyHQ checked Sep 27, 202651-20052 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 27, 2026
9Partial evidenceStuttgart, GermanyHQ checked Sep 27, 202651-20051 contacts →

Partial evidence

“Medialine Security – 360° Cyber Security Expertise Innerhalb der Medialine Group sind wir das Competence Center für Cybersicherheit.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceMunich, GermanyHQ checked Sep 27, 202611-5021 contacts →

Indirect evidence

“CloudAstro – Wir übernehmen, wenn andere nur beraten.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceEnse, GermanyHQ checked Sep 27, 202651-20020 contacts →

Indirect evidence

“Wir vereinen IT-Welten.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceAachen, GermanyHQ checked Sep 27, 202611-5019 contacts →

Partial evidence

“Wir übersetzen die stetig steigende technologische Komplexität der Cloud-Systeme in konkreten Nutzen für den Kunden.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceBerlin, GermanyHQ checked Sep 27, 202611-5017 contacts →

Indirect evidence

“Data grows at an exponential speed.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceVaterstetten, GermanyHQ checked Sep 27, 202611-5016 contacts →

Partial evidence

“Cyber Samurai GmbH – Ihr IT-Security Dienstleister im Kampf gegen aktuelle Cyberbedrohungen.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceDarmstadt, GermanyHQ checked Sep 27, 202651-20016 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 27, 2026
16Partial evidenceKöln, GermanyHQ checked Sep 27, 202651-20014 contacts →

Partial evidence

“Anqa IT-Security ist Spezialist für IT-Sicherheitslösungen.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceWerl, GermanyHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“ARTADA GmbH is an information technology and services company based out of Hammer Str.”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceDillingen, GermanyHQ checked Sep 27, 202611-5014 contacts →

Strong evidence

“Wir sind euer Managed Service Provider für WLAN, IT-Security und Cloud im Saarland, Rheinland-Pfalz und Luxembourg.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceHamburg, GermanyHQ checked Sep 27, 202651-20014 contacts →

Strong evidence

“ADVANCED Systemhaus – Your Partner and Managed IT-Security and enhanced ZeroTrust Solution Provider with your business goals in mind.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceAugsburg, GermanyHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceHamburg, GermanyHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“Die DOKUMENTA AG ist ein inhabergeführter Managed Services Provider mit eigenem Rechenzentrum am Standort Hamburg-Langenhorn.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceLeipzig, GermanyHQ checked Sep 27, 202611-5012 contacts →

Strong evidence

“Vom Cost Center zum Digitalisierer Mit unseren Managed Services erhalten Sie als mittelständisches Unternehmen eine sichere und kostenoptimierte Microsoft Cloud Infrastruktur.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceHamburg, GermanyHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

“Schön, dass Sie den Weg zur Wolkenwerft gefunden haben.”

Source: RevenueBase Database · checked Sep 27, 2026
24Strong evidenceStuttgart, GermanyHQ checked Sep 27, 202611-5011 contacts →

Strong evidence

“As a Managed Service Provider OCX offers outstanding IT services in the following fields:* IT Support * IT Security * Infrastructure * IT Consulting * Cloud Solutions * Voice over…”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceWeimar (lahn), GermanyHQ checked Sep 27, 202611-5011 contacts →

Partial evidence

“greenhats® is a platform for IT security.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 133 cloud security managed service providers based in Germany

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Cloud security managed service providers based in Germany at a glance

As of Sep 27, 2026
44.3%Verified-email coverage
17.3Average contacts per company
11-50Median size (employees)
8.3%Largest-city concentration · Hamburg
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
50
51-200
17
201-500
4
501-1,000
1

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 133 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 cloud security managed service providers, 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 “cloud security managed service providers”. 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 cloud security managed service providers), 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 cloud security managed service providers, 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, 1,023 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 27, 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 cloud security managed service providers, 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 cloud security managed service providers are there based in Germany?

RevenueBase identified 133 cloud security managed service providers 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?

Hornetsecurity, headquartered in Hannover, tops this list with the largest team on record.

Which city has the most cloud security managed service providers?

Hamburg leads with 11 headquartered companies, followed by Berlin (6) and Stuttgart (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 1,023 verified decision-maker contacts tracked across these 133 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 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 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.