- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich]
- Accenture Technology Consulting - Security
- Comp. Sci. Dept.
- Department of Computer Science
- Department of Computer Science [Karlstad]
- Department of Informatics [Oslo]
- Director Borking Consultancy
- E-Government Innovation Center (EGIZ)
- European Commission - Joint Research Centre [Seville]
- Faculty of Mathematics and Natural Sciences [Oslo]
- IBM RESEARCH
- IBM Research
- IBM Research Lab. - Zürich
- Independent Consultant
- Information Security Group, Royal Holloway
- JRC Institute for Prospective Technological Studies
- Karlstad University [Sweden]
- Norsk Regnesentral [Oslo]
- Novay
- Queen Mary University of London
- Radboud University [Nijmegen]
- University Graduate Center [Kjeller]
- University of Oslo
- Yahoo! JAPAN Research