Company lists · Data refreshed September 2026

Top 25 Iot security assessment companies based in Germany

RevenueBase identified 245 iot security assessment companies headquartered in Germany as of September 2026 and tracks 2,646 professional contacts across them, including 998 with verified work emails. Berlin is the largest hub.

This list covers iot security assessment 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 28, 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 28, 2026 86% judged on-target in blind review
245Companies
2,646Contacts tracked
998Verified emails
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The 25 largest iot security assessment companies based in Germany

Ranked by team size
Top 25 of 245 iot security assessment companies based in Germany, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to iot security assessment companies: 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
1Indirect evidenceEssen, GermanyHQ checked Sep 28, 20261,001-5,000623 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceNeu-isenburg, GermanyHQ checked Sep 28, 202651-200130 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceEssen, GermanyHQ checked Sep 28, 202651-200111 contacts →

Partial evidence

“TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidencePaderborn, GermanyHQ checked Sep 28, 202651-20081 contacts →

Indirect evidence

“neam IT-Services GmbH – founded in 1996 – is a Systems Integrator based in Paderborn, Germany and operating in various projects all over Europe.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceWuppertal, GermanyHQ checked Sep 28, 202651-20079 contacts →

Partial evidence

“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceUlm, GermanyHQ checked Sep 28, 202651-20069 contacts →

Partial evidence

“ditis - The Security Company!”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceTübingen, GermanyHQ checked Sep 28, 202651-20069 contacts →

Indirect evidence

“Die SySS GmbH ist ein herstellerunabhängiger IT-Sicherheitsdienstleister und führender Anbieter für Penetrationstests in der DACH-Region.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 28, 202611-5048 contacts →

Indirect evidence

“I’m not your usual analyst.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceFrankfurt, GermanyHQ checked Sep 28, 202651-20046 contacts →

Partial evidence

“Nextron Systems delivers automated compromise assessments to reliably uncover hidden intrusions.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceMeppen, GermanyHQ checked Sep 28, 202651-20039 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceLangenfeld, GermanyHQ checked Sep 28, 202611-5037 contacts →

Partial evidence

“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceWolnzach, GermanyHQ checked Sep 28, 202651-20037 contacts →

Indirect evidence

“Ihr SOC-Partner im DACH-Mittelstand.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceMannheim, GermanyHQ checked Sep 28, 202651-20033 contacts →

Indirect evidence

“SAMA PARTNERS Business Solutions ist ein unabhängiges Beratungs- und Engineering-Unternehmen mit Hauptsitz in Mannheim, mit den Schwerpunkten Informationssicherheit, KI und…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceDüsseldorf, GermanyHQ checked Sep 28, 202611-5032 contacts →

Partial evidence

“CLOUDYRION is a start-up for IT security consulting from Düsseldorf.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceAugsburg, GermanyHQ checked Sep 28, 202611-5031 contacts →

Partial evidence

“ausecus GmbH delivers IT-Security Consulting and Managed Services for critical infrastructure organisations (KRITIS).”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceMunich, GermanyHQ checked Sep 28, 202611-5028 contacts →

Partial evidence

“Simplifying Your Security Journey Welcome to mgm security partners GmbH – your reliable partner for simple and effective IT security solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceLeipzig, GermanyHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

“Rhebo provides simple and effective cybersecurity solutions for Operational Technology and distributed industrial assets for the energy sector, critical infrastructure and…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceUlm, GermanyHQ checked Sep 28, 202651-20024 contacts →

Indirect evidence

“CODE WHITE is specialized in high-end red teaming, continuous attack surface management and threat intelligence since 2014.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceKarlsruhe, GermanyHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 202611-5021 contacts →

Indirect evidence

“Unser Ziel ist es, für Sie Produkte und Lösungen zu entwickeln, welche gleichzeitig widerstandsfähig gegen Angriffe und Manipulationen sind, um Daten und Prozesse zu schützen.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceBayern, GermanyHQ checked Sep 28, 202651-20019 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 28, 2026
22Partial evidenceUlm, GermanyHQ checked Sep 28, 202611-5019 contacts →

Partial evidence

“SCHUTZWERK GmbH is an international IT security consultancy.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceBerlin, GermanyHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“Cure53 offers classic black-box penetration tests (zero-knowledge) as well as white-box tests and code audits.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceBonn, GermanyHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“Laokoon SecurITy is a high-class boutique consultancy for the financial sector and hidden champions.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceBerlin, GermanyHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“Die GAI NetConsult GmbH ist ein in Deutschland und dem benachbarten Ausland tätiges, unabhängiges Beratungsunternehmen für IT- und OT-Security mit Hauptsitz in Berlin.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 245 iot security assessment companies based in Germany

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Iot security assessment companies based in Germany at a glance

As of Sep 28, 2026
37.7%Verified-email coverage
10.8Average contacts per company
1-10Median size (employees)
11.0%Largest-city concentration · Berlin
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
147
11-50
79
51-200
17
201-500
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 245 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 iot security assessment 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 “iot security assessment 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 iot security assessment 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 iot security assessment 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, 998 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 28, 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.

Iot security assessment companies by metro

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 iot security assessment 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 iot security assessment companies are there based in Germany?

RevenueBase identified 245 iot security assessment 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 iot security assessment companies?

Berlin leads with 27 headquartered companies, followed by Munich (11) and Hamburg (8).

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 998 verified decision-maker contacts tracked across these 245 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 28, 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.