Company lists · Data refreshed September 2026
Top 25 Network security infrastructure providers based in Germany
RevenueBase identified 183 network security infrastructure providers headquartered in Germany as of September 2026 and tracks 1,967 professional contacts across them, including 788 with verified work emails. Berlin is the largest hub.
This list covers network security infrastructure 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 29, 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 network security infrastructure providers based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 139 contacts → | ||||
Partial evidence “Die dacoso GmbH ist ein spezialisierter Anbieter von herstellerunabhängigen Connectivity und Security Lösungen im Data Center und Carrier Segment.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 97 contacts → | ||||
Indirect evidence “Die Telonic GmbH mit Sitz in Köln zählt zu den führenden, unabhängigen IT-Systemhäusern Deutschlands.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 96 contacts → | ||||
Partial evidence “Rohde & Schwarz Cybersecurity is a leading IT security company that protects companies and public institutions around the world against cyberattacks.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 90 contacts → | ||||
Partial evidence “Wenn das Internet eine Stadt wäre, bauen wir die Straßen.“ So beschreibt COO, Thomas Klein, das, was die Pan Dacom Networking AG (aus)macht.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 54 contacts → | ||||
Strong evidence “Adva Network Security is a leading German IT-security company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Indirect evidence “Just stronger Cybersecurity - Bestmöglichen Schutz vor Cyberangriffen aufzubauen und auf hohem Niveau zu halten, ist Kernkompetenz der concentrade.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 51 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 40 contacts → | ||||
Strong evidence “ENTIRETEC delivers Global Managed Services that keep business critical networks and security running 24/7 worldwide.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 37 contacts → | ||||
Partial evidence “macmon, one of Belden’s connected brands, makes complete network transparency and control possible by monitoring and protecting against unauthorized access.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 contacts → | ||||
Indirect evidence “Firmenprofil Impressum: Über HOB: Gegründet wurde das Unternehmen HOB 1964 von Horst Brandstätter.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 31 contacts → | ||||
Strong evidence “ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “Die esko-systems GmbH betreut Mittelstands- und Industriekunden in allen Fragen der IT-Sicherheit.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 contacts → | ||||
Partial evidence “Networks are our business and our competence!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “link protect GmbH is an information technology and services company based out of Münchner Straße 92, Kirchseeon, Bavaria, Germany.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “Die meco IT GmbH ist seit über 25 Jahren ein international erfolgreiches Systemhaus mit Sitz in Ravensburg.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Partial evidence “Networkers ist Spezialist für Planung, Aufbau und Betrieb sicherer und leistungsfähiger Applikations- und Netzwerkinfrastrukturen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Partial evidence “protectONE - akkreditiertes und autorisiertes Consulting- & Trainingsunternehmen für IT Security Lösungen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Indirect evidence “At systemzwo, we are always looking for talented and dedicated professionals who share our passion for IT innovation and want to drive our vision forward.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Indirect evidence “Media Secure ist Dienstleister für innovative IT Netzwerk- und Sicherheitsinfrastrukturen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 13 contacts → | ||||
Indirect evidence “4 Tech GMBH is a professional company specialized in providing efficient, customer-oriented, and tailor-made hardware and software solutions for LAN, WLAN, telephone, video, and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “Die Phalanx-IT ist ihr Dienstleister für IT-Sicherheit und IT-Forensik!” Source: RevenueBase Database · checked Sep 29, 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: network security infrastructure providers. 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 network security infrastructure providers.
- Partial evidence
- Its own public description names part of network security infrastructure providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name network security infrastructure providers. 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 183 network security infrastructure providers based in Germany
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Network security infrastructure providers based in Germany at a glance
As of Sep 29, 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 183 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 network security infrastructure 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 “network security infrastructure 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 network security infrastructure 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 network security infrastructure 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, 788 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 29, 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 network security infrastructure 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 network security infrastructure providers are there based in Germany?
RevenueBase identified 183 network security infrastructure 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?
Dacoso Gmbh, headquartered in Langen Hessen, tops this list with the largest team on record.
Which city has the most network security infrastructure providers?
Berlin leads with 16 headquartered companies, followed by Koln (10) and Hamburg (7).
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 788 verified decision-maker contacts tracked across these 183 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 29, 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.
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