Management Board

Axel Deininger

Chairman of the Management Board / Chief Executive Officer

Since Januar 2018 Axel Deininger serves together with Thomas Pleines, Tosten Henn and Dr Kai Martius.
He is specifically responsible for strategy/business development, international sales, marketing and human ressources at secunet Security Networks AG. Axel Deininger has been Chairman of the Board since June 2019.

Axel Deininger is an industrial engineer who possesses many years of management experience from holding positions at companies such as Siemens AG, Infineon Technologies AG and Samsung Semiconductor Europe GmbH. Most recently, Deininger held a variety of management positions during his more than ten years with Munich-based Giesecke+Devrient Group.

Thomas Pleines

Member of the Management Board / Chief Financial Officer

Thomas Pleines started his career as a commercial director at secunet GmbH and was elected to the Board after the company went public in 1999. He is responsible for the Finance, Controlling, Legal and Investor Relations.

The MBA was previously Head of Commercial Coordination for SAP Systems, Head of Corporate Accounting and Head of Tax at RWTÜV AG in Essen.

Torsten Henn

Member of the Management Board / Chief Operating Officer

Torsten Henn started as a consultant and project manager at secunet GmbH in 1997 and held various management positions within the company. As part of the realignment of secunet, Torsten Henn joined the extended management board as Chief Operating Officer (COO) in 2015 and has been a member of the board of management since June 2019. He is responsible for national sales, production, IT and quality management.

Torsten Henn studied computer engineering in Siegen and worked for Telekom before joining secunet. This was followed by RWTÜV Anlagentechnik and TÜV Informationstechnik. Since 1994, Torsten Henn has been working exclusively in the field of IT security.


Dr Kai Martius

Member of the Management Board / Chief Technology Officer

Dr. Kai Martius headed secunet's High Security / Public Sector division from 2007 to 2015. Previously, he had been responsible for various consulting and product development topics since 1999, the year of his doctorate in electrical engineering at the TU Dresden. Since 2015, Dr. Kai Martius has been CTO of secunet's extended management board. He was appointed to the Executive Board in June 2019. He is responsible for technology/development, product management and certification.

Dr. Martius is one of SINA's architects and also has extensive experience in the design, implementation and use of security products for public authorities.