Company lists · Data refreshed November 2026

Top 24 Firewall and intrusion detection companies based in Germany

RevenueBase identified 102 company matches for firewall and intrusion detection companies associated with Germany as of November 2026 and tracks 2,549 professional contacts across them, including 949 with verified work emails. Berlin is the largest hub.

This list covers company matches for firewall and intrusion detection 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 6, 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 6, 2026 How this list was built
102Companies
2,549Contacts tracked
949Verified emails
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The 24 largest firewall and intrusion detection companies based in Germany

Ranked by team size
Top 24 of 102 company matches for firewall and intrusion detection companies based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchBochum, GermanyHQ recorded Nov 6, 2026501-1,000392 contacts →

Exact match

“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLüneburg, GermanyHQ recorded Nov 6, 2026201-500124 contacts →

Exact match

“Securepoint GmbH, from the Hanseatic city of Lüneburg, is the market leader in the development of professional “Unified Threat Management” solutions in Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“SECUINFRA, expert and partner for cyber defense, has specialized in the detection, analysis and defense against cyber attacks since 2010.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMunich, GermanyHQ recorded Nov 6, 2026201-50094 contacts →

Exact match

“Rohde & Schwarz Cybersecurity is a leading IT security company that protects companies and public institutions around the world against cyberattacks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWuppertal, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchFrankfurt, GermanyHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“Link11 is a leading European manufacturer of cloud-based cybersecurity solutions that helps businesses and public authorities in critical infrastructure stay online, no matter…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 202651-20060 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchStuttgart, GermanyHQ recorded Nov 6, 202651-20057 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMendig, GermanyHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“ProSec GmbH verwandelt Unternehmen in digitale Festungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNuremberg, GermanyHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“ForeNova unterstützt kleine und mittlere Unternehmen dabei, ihre bestehenden Cybersicherheitslösungen so zu nutzen, dass auch versteckte Bedrohungen schneller und präziser erkannt…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMeppen, GermanyHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“As IT security company we protect your electronical stored data against cyber attacks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKötz, GermanyHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Die esko-systems GmbH betreut Mittelstands- und Industriekunden in allen Fragen der IT-Sicherheit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBayern, GermanyHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“link protect GmbH is an information technology and services company based out of Münchner Straße 92, Kirchseeon, Bavaria, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKarlsruhe, GermanyHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchVaterstetten, GermanyHQ recorded Nov 6, 202611-5017 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“AGT helps organizations create secure environments for safer operations and better service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWiesbaden, GermanyHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Bei Protforce stehen Sicherheit und Zukunft im Einklang.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWerl, GermanyHQ recorded Nov 6, 202611-5014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAugsburg, GermanyHQ recorded Nov 6, 202611-5014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchFrankfurt, GermanyHQ recorded Nov 6, 202611-5014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMarl, GermanyHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Full-Service-Dienstleiter im Bereich der IT-Security- Wir helfen Ihnen Ihre Herausforderungen in den Griff zu bekommen oder übernehmen diese vollständig für Sie!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLeinfelden-echterdingen, GermanyHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Sicherheitstechnik aus einer Hand Es gibt unzählige Möglichkeiten, ein Gebäude zu sichern.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMunich, GermanyHQ recorded Nov 6, 2026n/a10 contacts →

Exact match

“sayTEC Solutions develops and sells IT-Security Solutions made in Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFrankfurt, GermanyHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Mit der Managed IT Security der Mahoney IT erhalten Sie aktuellste IT-Sicherheitslösungen, durch die Ihr Unternehmen durch unsere Standorte in den USA und Deutschland 24/7…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 102 firewall and intrusion detection companies based in Germany

See the full list, filter by size, metro and specialty, and access 949 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Firewall and intrusion detection companies based in Germany at a glance

As of Nov 6, 2026
37.2%Verified-email coverage
25.0Average contacts per company
11-50Median size (employees)
7.8%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
36
51-200
17
201-500
4
501-1,000
1
1,001-5,000
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 102 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 “firewall and intrusion detection 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 949 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 6, 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 “firewall and intrusion detection companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many firewall and intrusion detection companies are there based in Germany?

RevenueBase identified 102 company matches for firewall and intrusion detection 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?

G Data Cyberdefense tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most firewall and intrusion detection companies?

Berlin leads with 8 company records, followed by Frankfurt (7) and Munich (6).

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 949 professional contacts with verified work emails tracked across these 102 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 6, 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.