Managing Directors

Thomas Hoffmann

CEO Marketing & Sales

Thomas Hoffman has over 20 years of experience in the international management of IT security companies. He was the founder of EUNET Austria and EUNET International BV. Furthermore Hoffmann also founded CSM Security Management Ltd. Hoffmann signed as Managing Director for Central Europe and advisor to the board of SurfControl. Before founding Radar Cyber Security together with Harald Reisinger, Hoffmann was Sales Leader Austria for Security Services and Software Support for IBM Austria. He studied international business at the Vienna University of Economics and Business and the Concordia University in Montreal.

Harald Reisinger

CEO Innovation & Service Management

Harald Reisinger has over 20 years of experience in corporate management in the IT sector. He was the co-founder of Greentube Ltd. (later successfully sold to Novomatic). Before and during the IPO phase of He was a member of their management team. In 2001, Harald Reisinger founded the base-camp GmbH, which developed into one of the largest IT security companies in Austria. Radar Cyber Security originated from his idea for an IT risk management as a managed service. Harald Reisinger studied international business at the Vienna University of Economics and Business and the University of Nebraska at Omaha.

Executive Staff

Dr. Christian Polster

Chief Portfolio Officer & Chief Security Officer

Before joining Radar Cyber Security, Dr. Christian Polster worked for Lufthansa Systems AG, the global IT management arm of Lufthansa AG, and in various positions in the field of IT security for the Computer Software Manufaktur GmbH, CSM Security Management AG and SurfControl GmbH. He studied business informatics in Vienna and Madrid, as well as business administration in Vienna, London, Paris and Singapore. He finished his doctorate in strategic finance at the Vienna University of Economics.

Wolfgang Gröller

Chief Technology Officer

Wolfgang Gröller has more than 10 years of international project experience in the field of cybersecurity. He has been working in the IT security and consulting environment for 15 years and has been entrusted with the development of Managed Services for security and infrastructure companies. Since 2016 he has been responsible for the development of operational business and technical innovations at Radar Cyber Security. He studied Business Administration at Middlesex University.

Petra Pongratz

Chief Financial Officer

Petra Pongratz brings several years of finance leadership experience with her, having held management positions in IT companies and technology companies. Prior to that, the proven financial specialist was in charge of accounting, controlling, legal and human resources. She studied Accounting and Controlling in Graz, also majoring in English with a combination of Europe – Language -Economics and Law.

Lothar Hänsler

Chief Operations Officer

With a professional track record of more than 35 years Lothar Hänsler has been holding various IT management positions in Germany, the United States and Singapore. In his latest assignment of 6 years as the Head of Cybersecurity at Rolls Royce Power Systems AG, he was responsible for the setup of a Cyber Defense Center. Hänsler holds a Business Administration degree from Pforzheim University (GER).

Advisory Board

Jens Westernhagen


Jens Westernhagen is Investment Director at Armira and has several years of experience in the investment sector as a board member. He studied Industrial Engineering at the Karlsruhe Institute of Technology (KIT) and in the USA.

Dr. Stefan Zoller

Armira / MUCCONI 

Dr. Stefan Zoller is Member of the Supervisory Board at Armira and founded MUCCONI. He held management positions within the automotive and aerospace sectors. He studied law and received his doctorate in 1989.

Dr. Gernot Hofer

Invest AG

Dr. Gernot Hofer is Member of the Board at Invest AG. Previously he gained international experience in Hong Kong and with a Vienna venture capital fund. Dr. Hofer has a degree in Business Studies from the Vienna University of Economics and was awarded a doctorate in Venture Capital and Private Equity.

Peter Laggner

Trimetis AG

Peter Laggner is CEO and founder of Trimetis AG. Until 2012 Laggner was Corporate Vice President at Capgemini (Package Based Solutions). He has 25 years of experience in Professional Services and IT Consulting. Laggner studied Business Administration at the Vienna University of Economics.