Limes Security

Limes Security GmbH is a leading cyber security expert in the field of OT security and secure product and software development in the German-speaking region. At three locations in Austria and Germany, Limes Security supports manufacturers as well as operators of software-based systems with customized security consulting projects. In addition to consulting projects, Limes Security offers training and certification in the field of cyber security through its Limes Academy. Its customers are well-known national and international companies from the manufacturing industry as well as critical infrastructure.

In order to further expand its expertise in the area of OT Security, the security research company Alpha Strike Labs became part of Limes Security.

Alpha Strike Labs forms a dedicated R&D unit within Limes Security focusing on vulnerability research, new attack methods, better attack detection with honeypots and OSINT/Threat Intelligence. Alpha Strike Labs also acts as an incubator for product and service ideas.

The Limes Security team consists of more than 20 experts in the field of OT Security, who are qualified by a variety of relevant certifications in addition to first-class education at the leading universities in the field of security at national and international level. The Limes experts work closely with the international security community, are co-developers of recognized security standards and are constantly active as speakers at international conferences and universities.

The Management

Thomas Brandstetter
Site Manager Hagenberg

Johannes Klick
Site Manager Berlin

Peter Panholzer
Site Manager Hagenberg

Tobias Zillner
Site Manager Vienna

Our References

Great responsibility and great risks demand highly professional security management.  Whether wind energy world market leader, Internet-of-Things pioneer, global player in industrial plant engineering or urban infrastructure operation – these companies and many others rely on Limes Security.

Our Locations


Softwarepark 49
4232 Hagenberg


Praterstrasse 48 / 4
1020 Vienna


Albert-Einstein-Straße 14
12489 Berlin

Certifications & Know-How