Company lists · Data refreshed September 2026
Top 25 Industrial iot security companies based in Germany
RevenueBase identified 79 industrial iot security companies headquartered in Germany as of September 2026 and tracks 1,932 professional contacts across them, including 555 with verified work emails and 47 with mobile numbers. Berlin is the largest hub.
This list covers industrial iot security 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.
The 25 largest industrial iot security companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 620 | ||||
“secunet – Protecting Digital Infrastructures secunet is Germany’s leading cybersecurity company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 389 | ||||
“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 91 | ||||
“Thales' Cinterion IoT products & services business is now part of Telit Cinterion, creating the leading Western provider of trusted IoT solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 83 | ||||
“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | Triovega GmbhPartial evidence | 46 | |||
“We are a leading provider for production security and efficiency.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 | ||||
“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | OnekeyStrong evidence | 34 | |||
“ONEKEY is the leading European platform for automated security & compliance analysis for industrial (IIoT & ICS), manufacturing (OT) and Internet of Things (IoT) devices.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 | ||||
“Rhebo provides simple and effective cybersecurity solutions for Operational Technology and distributed industrial assets for the energy sector, critical infrastructure and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 | ||||
“Mehr Schutz vor Angriffen aus dem Cyberraum: Cyberkriminalität ist eine der größten Bedrohungen unserer Zeit.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 | ||||
“PHYSEC stands for pioneering solutions in secure digitalisation.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 23 | ||||
“Security technology goes SIMPLE and DIGITAL Every company has a need for physical security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 22 | ||||
“Als starke Marke umfasst das MB connect line Portfolio die Bereiche Sichere Fernwartung, IIoT & Industrial Security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 | ||||
“Digitale Bedrohungen wachsen – und damit unsere Verantwortung.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 | ||||
“AVIANET GmbH is a global business technology company headquartered in Munich that provides disruptive IT/OT cybersecurity services, IoT and Industrial Automation, Corporate IT…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 | ||||
“We turn your INdustrial CYber DEfense on, respecting your special operating systems and requirements for efficient and effective security measures, including Railways, Automotive…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 | ||||
“We translate challenges of digitization into secure IT/OT solutions The digital transformation of industry is leading to an increasingly complex networking of machines, systems…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 | ||||
“Als zuverlässiger Partner der Industrie bieten wir unseren Kunden umfassende Lösungen für eine erfolgreiche Industrial IoT-Reise.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | Proth NXIndirect evidence | 14 | |||
“PROTH!NX is a Berlin-based IIoT solutions builder creating innovative services and business models together with the industry.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 | ||||
“IoT, IIoT, digital transformation – are you looking for answers?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 | ||||
“IT-Sicherheit, die schützt, bevor es kritisch wird!” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 | ||||
“At KLG Smartec (KLG), we are dedicated to advancing industrial internet, integrating AI-powered solutions with top-notch Industrial Ethernet Switches and comprehensive Smart…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 | ||||
“We are SANCTUARY Systems, a cybersecurity company from Darmstadt, Germany.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 | ||||
“CM1 is working to make the Smart City of the future a reality.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 | ||||
“Peer Stritzinger GmbH is the company behind GRiSP hardware and software, and GRiSP-io SaaS.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 | ||||
“iKomm GmbH – Ihr Partner für ganzheitliche IT- Security Lösungen Die iKomm GmbH ist seit 1998 ein spezialisiertes IT- Security Unternehmen mit Sitz in Fürth bei Nürnberg, das…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 79 industrial iot security companies based in Germany
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Industrial iot security companies based in Germany at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 industrial iot security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Germany whose own description of what they do matches “industrial iot security companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among industrial iot security 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 an evidence 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, 555 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 3, 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
How many industrial iot security companies are there based in Germany?
RevenueBase identified 79 industrial iot security 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 industrial iot security companies?
Berlin leads with 12 headquartered companies, followed by Munich (5) and Cologne (4).
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 555 verified decision-maker contacts tracked across these 79 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 3, 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.
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