Germany's leading Cybersecurity company

Protecting Digital Infrastructures
secunet is Germany’s leading cybersecurity company. In an increasingly connected world, the Company’s combination of products and consulting assures resilient digital infrastructures and the utmost protection for data, applications and digital identities. secunet specialises in areas with unique security requirements – such as cloud, IIoT, eGovernment and eHealth. With security solutions from secunet, companies can maintain the highest security standards in digitisation projects and advance their digital transformation.

Over 700 experts strengthen the digital sovereignty of governments, businesses and society. secunet’s customers include federal ministries, more than 20 DAX-listed corporations as well as other national and international organisations. The company was established in 1997, is listed in the Prime Standard segment of the Frankfurt Stock Exchange and generated revenues of around 285 million euros in 2020.

secunet is an IT security partner to the Federal Republic of Germany and a partner of the German Alliance for Cyber Security.

The secunet Group
secunet Security Networks AG consists of the divisions eHealth, Homeland Security, Industry, Public Sector and Defence & Space. The international SINA sales activities are bundled in secunet International GmbH & Co. KG. secunet Security Networks AG is listed in the Prime Standard segment of the Frankfurt Stock Exchange. The main shareholder is Giesecke+Devrient GmbH.

Locations of secunet AG

secunet Security Networks AG
Kurfürstenstraße 58
45138 Essen

secunet Security Networks AG
Alt Moabit 96
10559 Berlin

secunet Security Networks AG
Dreizehnmorgenweg 6
53175 Bonn

secunet Security Networks AG
Ammonstraße 74
1067 Dresden

secunet Security Networks AG
Mergenthalerallee 77
65760 Eschborn

secunet Security Networks AG
Osterbekstraße 90 b
22083 Hamburg

Stashcat GmbH
Hamburger Allee 2-4
30161 Hannover

secunet Security Networks AG
Werner-von-Siemens-Straße 6
98693 Ilmenau

secunet Security Networks AG
Konrad-Zuse-Platz 2-12
81829 München

secunet Security Networks AG
Hauptstraße 35
33178 Borchen

secunet Security Networks AG
Weidenauer Straße 223-225
57076 Siegen

secunet Security Networks AG
Neue Brücke 3
70173 Stuttgart

Axel Deininger

Axel Deininger has been on the Management Board of secunet Security Networks AG since January 2018 and took over as Chairman in June 2019. He is responsible in particular for Strategy/Business Development, International Sales, Marketing and Human Resources.

Previously, Axel Deininger was Group Senior VP and Head of Division Connectivity & Devices at G+D Mobile Security GmbH. Axel Deininger's career has included positions at Siemens AG, Infineon Technologies AG and Samsung Semiconductor Europe GmbH. Most recently, Deininger held various positions at the Munich-based Giesecke+Devrient Group for more than ten years.

Torsten Henn

Torsten Henn started at secunet GmbH back in 1997 as a consultant and project manager and took on various management positions within the company. In the course of secunet's realignment, Torsten Henn joined the extended Management Board as Chief Operating Officer (COO) in 2015 and has been a member of the Management Board since June 2019. He is responsible for national sales as well as production, IT and quality management.

Torsten Henn studied Computer Engineering in Siegen and worked for Telekom before joining secunet. He then worked for RWTÜV Anlagentechnik and TÜV Informationstechnik. Since 1994, Torsten Henn has been working exclusively on the subject of IT security.

Dr. Kai Martius

Dr. Kai Martius headed secunet's High Security / Public Sector business unit from 2007 to 2015. Before that, he had already been responsible for various topics in consulting and product development since 1999, the year he received his doctorate in electrical engineering from the Technical University of Dresden. Since 2015, Dr. Kai Martius has been a member of secunet's extended management board as CTO. In June 2019, he was appointed to the Management Board. He is responsible for the areas of technology/development, product management and certification.

Dr. Martius was one of the architects of SINA and also has extensive experience in the design, implementation and deployment of security products in the public sector.

Thomas Pleines

Thomas Pleines began as commercial director at secunet GmbH and was appointed to the Management Board after the company's conversion to a stock corporation in 1999.

He is responsible for the areas of finance, controlling, legal affairs and investor relations.

A business economist, he was previously head of commercial coordination of SAP systems, head of group accounting and head of the tax department at RWTÜV AG, Essen.

The Supervisory Board of secunet Security Networks AG is comprised of six members. Four members are elected by the shareholders and two members by the employees in accordance with the One-Third Participation Act pertaining to employees on the Supervisory Board (Drittelbeteiligungsgesetz).

Rules of Procedure of the Supervisory Board

Ralf Wintergerst

Member of the Supervisory Board since May 2017

Chairman of the Management Board and CEO of Giesecke+Devrient GmbH, Munich/Germany

Dr Peter Zattler

Member of the Supervisory Board since June 2004

Member of the Management Board and CFO of Giesecke+Devrient GmbH, Munich/Germany

Dr Elmar Legge

Member of the Supervisory Board since October 1999

Member of the Board of Management of GREIF-Stifung, Mülheim a.d. Ruhr/Germany

Jörg Marx

Member of the Supervisory Board since May 2019

Representative of the employees

Gesa-Maria Rustemeyer

Member of the Supervisory Board since May 2019

Representative of the employees

Prof Dr-Ing Günter Schäfer

Member of the secunet Supervisory Board since May 2014

University Professor, University of Technology, Ilmenau/Germany

Integrity, shared values, the reputation and trust of customers and business partners are always at the core of secunet's activities. An effective and transparent compliance organisation and uniform, clear principles and values determine our actions and form the basis for a secunet-wide understanding of compliance.


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