| Since 2014 | Scientific Advisory Board of the Federal Association of German Criminal Investigation Officers (BDK) |
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| 2013 - 2015 | Board of the Association of the German Electrical & Electronics Industry (ZVEI) | |
| 2011 - 2015 | Advisory Board for the “Security of the Future” of the Federal Minister of Economy and Energy | |
| 2009 - 2015 | Advisory Board of the private University of Economics WHU – Otto Beisheim School of Management in Vallendar | |
| 2007 - 2015 | GESA (German European Security Association) | |
| Since 2002 | Advisory Board of the Institute for Counter-Terrorism (ICT) of the University of Herzliya, Israel | |
| 2008 – 2011 | Security Commission of the Association of the German Electrical & Electronics Industry (ZVEI) and speaker for its security domain | |
| 2010 – 2011 | Federal Association for the German Defence and Security Industry (BdSV) | |
| 2006 - 2007 | On proposal of the German Government, sole German industry representative in the European Security Research and Innovation Forum (ESRIF) and rapporteur of the ESRIF working group on critical infrastructures. ESRIF was a high-level advisory board to the EU Commission and the EU Member States aiming at civil security policy making and establishing and carrying forward a mid and long term Joint Security Research and Innovation Agenda | |
| 2006 – 2007 | Co-founder and first President of the European Organisation for Security (EOS). EOS has been created by European private sector providers and users from all domains of security solutions and services with the aim of promoting innovation and implementation of civil security capabilities. This initiative was founded in close cooperation with the EU Commission | |
| 2005 – 2006 | On proposal of the German Government, first President of the European Advisory Board for Security Research to the European Commission (ESRAB). ESRAB has produced guidelines for structuring the 1.4 billion Euro 7th European Framework Program on Security Research, valid from 2007 until 2014, and has recommended the foundation of ESRIF as well as of EOS | |
| 2005 – 2007 | AeroSpace and Defence Industries Association of Europe (ASD) and Vice President of its Security Commission | |
| 2001 – 2004 | Federal Association for Information Technology, Telecommunications and New Media (BITKOM) and chairperson of its Security Working Group | |
| 1995 – 1997 | Chairperson of the Working Group on Trafficking of the Intergovernmental Consultations on Asylum, Refugees and Migration Policies in Europe, North America and Australia in Geneva | |
| 1992 - 1997 | FAST-Core Group (Future Automated Screening of Travellers) of the World Travel & Tourism Council in Brussels | |
| 1992 – 1997 | Panel of Experts on Facilitation of the Air Transport Committee of the International Civil Aviation Organization (ICAO) | |
| 1988 – 1997 | Working Group established between the International Air Transport Association and 15 States on security & facilitation in air transport (IATA/CAWG) | |
Others:
Bund Deutscher Kriminalbeamter (Federal Association of German Criminal Investigation Officers - BDK)
Anwenderforum für Fernmeldetechnik, Computer, Elektronik und Automatisierung (AFCEA; Association for Information and Telecommunication Technologies in Defence & Security)
Deutsche Gesellschaft für Wehrtechnik (DWT; Germany Society for Defence Technology)
Förderkreis Heer (FKH; Association for German Land Defence)
Rechtsanwaltskammer (Bar Association) for the district of the High Regional Court of Koblenz