Company lists · Data refreshed November 2026

Top 25 Telecom cybersecurity software companies based in Germany

RevenueBase identified 79 company matches for telecom cybersecurity software companies associated with Germany as of November 2026 and tracks 3,009 professional contacts across them, including 879 with verified work emails. Munich is the largest hub.

This list covers company matches for telecom cybersecurity software 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
79Companies
3,009Contacts tracked
879Verified emails
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The 25 largest telecom cybersecurity software companies based in Germany

Ranked by team size
Top 25 of 79 company matches for telecom cybersecurity software 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 matchEssen, GermanyHQ recorded Nov 5, 20261,001-5,000680 contacts →

Exact match

“secunet – We are the Guardians of Europe's Digital Freedom.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBochum, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
3Exact matchNeu-isenburg, GermanyHQ recorded Nov 5, 202651-200134 contacts →

Exact match

“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLüneburg, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
5Exact matchMunich, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchFrankfurt, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
8Exact matchJena, GermanyHQ recorded Nov 5, 202651-20073 contacts →

Exact match

“Enginsight ist die praxisnahe und effiziente Cybersecurity Plattform aus Deutschland, für mittelständische Unternehmen, KRITIS und öffentliche Träger.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchDüsseldorf, GermanyHQ recorded Nov 5, 2026501-1,00072 contacts →

Exact match

“We deliver advanced IT, Cybersecurity, AI, and Telecommunications solutions for enterprises, operators, and governments worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchJena, GermanyHQ recorded Nov 5, 202651-20070 contacts →

Exact match

“ESET ist ein europäischer IT-Sicherheitshersteller mit Hauptsitz in Bratislava (Slowakei).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchBerlin, GermanyHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Adva Network Security is a leading German IT-security company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMeppen, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
13Exact matchOppenheim, GermanyHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“ECOS is an owner-managed business and specialized in the software development of IT security solutions.we connect IT stands for solutions providing employees of public…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchGelsenkirchen, GermanyHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“We are a cyber security company based in Gelsenkirchen, Germany.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchKarlsruhe, GermanyHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBochum, GermanyHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“ISL Internet Sicherheitslösungen GmbH, based in Bochum, has been developing innovative and future-proof IT security solutions since it was founded in As a leading German software…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMunich, GermanyHQ recorded Nov 5, 2026n/a10 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchIggensbach, GermanyHQ recorded Nov 5, 20261-1010 contacts →

Exact match

“Cloud Provider | Cyber Security Solutions | Secure Communication for Businesses | Boosting your Business with Scalable Cloud Tech | Bavaria”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHilchenbach, GermanyHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Ihr Vertrauen – Unser Schutz!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchIsernhagen, GermanyHQ recorded Nov 5, 20261-107 contacts →

Exact match

“We provide Cyber Security solutions to all customers, whether it be Hardware, Software or Cloud Services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchColombo, GermanyHQ recorded Nov 5, 202611-507 contacts →

Exact match

“Arozen is a cybersecurity, AI, and IT services company delivering security testing, engineering talent, and technology project support at scale.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchMonheim, GermanyHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Benefit from very extensive cyber security experience as well as Cyber Security Award-winning experts to help you protect your business from cyber attacks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchMunich, GermanyHQ recorded Nov 5, 202611-505 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchHerrenberg, GermanyHQ recorded Nov 5, 202651-2003 contacts →

Exact match

“Mit der Gründung 2003 wurde der Grundstein für ein breites Angebot an wirkungsvollen und kosteneffektiven Sicherheitslösungen rund um E-Mail, Internet, Daten und Netzwerk gelegt.”

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

Showing 25 of 79 telecom cybersecurity software companies based in Germany

See the full list, filter by size, metro and specialty, and access 879 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom cybersecurity software companies based in Germany at a glance

As of Nov 5, 2026
29.2%Verified-email coverage
38.1Average contacts per company
11-50Median size (employees)
17.7%Largest-city concentration · Munich
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
24
51-200
16
201-500
3
501-1,000
2
1,001-5,000
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 79 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 “telecom cybersecurity software 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 879 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 “telecom cybersecurity software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom cybersecurity software companies are there based in Germany?

RevenueBase identified 79 company matches for telecom cybersecurity software 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?

Secunet Security Networks AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom cybersecurity software companies?

Munich leads with 14 company records, followed by Berlin (13) and Bochum (4).

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 879 professional contacts with verified work emails tracked across these 79 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.