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 1000 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 SDAX and generated revenues of around 337 million euros in 2021.

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

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secunet Security Networks AG
Alt Moabit 96
10559 Berlin

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secunet Security Networks AG
Dreizehnmorgenweg 6
53175 Bonn

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secunet Security Networks AG
Ammonstraße 74
1067 Dresden

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secunet Security Networks AG
Mergenthalerallee 77
65760 Eschborn

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secunet Security Networks AG
Osterbekstraße 90 b
22083 Hamburg

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Stashcat GmbH
Schiffgraben 47
30175 Hannover

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

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

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secunet Security Networks AG
Hauptstraße 35
33178 Borchen

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secunet Security Networks AG
Weidenauer Straße 223-225
57076 Siegen

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secunet Security Networks AG
Neue Brücke 3
70173 Stuttgart

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Axel Deininger
Axel Deininger
Chairman of the Board / Chief Executive Officer

Axel Deininger has been on the Management Board of secunet Security Networks AG since January 2018 and took over as Chairman in June 2019.

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
Member of the Board / Chief Operating Officer

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.

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
Member of the Board / Chief Technology Officer

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.

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
Member of the Board / Chief Financial Officer

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.

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

Dr 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.

"Rules and values are like a compass that helps us stay on course. Those who respect shared values and guidelines can build on their success in a targeted and sustainable way.

Our dealings with employees, suppliers, business partners and shareholders are characterized by integrity, a sense of responsibility and trust. Absolute compliance with all applicable rules and laws is the benchmark for our actions. Compliance is a top priority for secunet.

secunet operates a compliance management system in accordance with the IDW PS 980 standard, including a compliance training program and a whistleblower system for the confidential reporting of violations of existing rules and laws.

The secunet Code of Conduct serves as a binding guideline for our daily actions. Each individual is responsible for living and implementing our self-image every day and everywhere.

We expect our employees, suppliers and business partners to act responsibly, with integrity and ethically in accordance with legal regulations. Violations of the law will not be tolerated and will be sanctioned accordingly."

The Management Board of secunet Security Networks AG, September 2022

The management's clear commitment to integrity gives rise to various measures. These are, firstly, training and counselling. secunet employees are regularly trained and sensitised to compliance issues. Participation in the training courses, which have taken place via online training since the outbreak of the Corona pandemic, is mandatory for all employees every two years.

The Compliance Office is available to answer any additional compliance questions. Secondly, guidelines define how conflicts of interest and corruption are to be handled. In the course of compliance training, attention is also drawn to compliance with the relevant guidelines and requirements by secunet's business partners.

Code of Conduct

Code of Conduct for Employees of the secunet Group

Code of Conduct

Code of Conduct for Suppliers and Business Partners

Whistleblowing portal

The whistleblowing portal (BKMS® Incident Reporting) is at the disposal of employees of the secunet group or third parties to seek advice or draw attention to significant violations of the code of conduct – in particular illegal business practices.

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