| Honorary Chair of The 2018 International Conference on Advances in Social Networks Analysis and Mining ASONAM 2018' Barcelona (August 27-31, 2018) |
| Honorary Chair of The 2015 International Conference on Advances in Social Networks Analysis and Mining ASONAM 2015' Paris (August 26-29, 2015) |
| Keynote 'The Social Forces of the Energy Revolution' at SUNday 2012 Conference, Den Bosch, The Netherlands, November 7, 2012 |
| Keynote 'Social network effects of the transition towards sustainable energy production. A proposal for a data mining research agenda' at The 2012 International Conference on Advances in Social Networks Analysis and Mining 2012 ASONAM' Istanbul (August 26-29, 2012) |
| Keynote 'The Crucial Role of Cooperation and Competition in Social Networks for Science and Technology Indicators' at the ENID Science & Technology Conference, Rome (September 2011) |
| Keynote 'Experiences from the 'Networks of Corporate Power' Project and New Perspectives for Present Studies' at the International Workshop on 'Corporate Networks in Europe during the 20th Century' Utrecht (November 12-13, 2010) |
| Keynote 'The Use of Interest Networks For Strategic Intervention. Illustrated in the Domain of Sustainability' at the 7th Conference on Applications of Social Network Analysis (ASNA), organized by ETHZ and the University of Zurich (September 2010) |
| Keynote 'From Influence Networks To Interests Networks' at the ESF QMSS 2 Programme seminar "Power, Decision Making and Social Networks" at the UCD Geary Institute (August 2010) |
| Keynote 'Interest-Based Social Networks In Collective Decision Making' at UK Social Network Conference, Greenwich (July 2009) |
| Invited Participant and Speaker at Learning Journey to Greenland, Tallberg Foundation (May 2009) |
| Award by Sage Publications: Best 2007 article in European Union Politics journal (Schalk, Torenvlied, Weesie & Stokman) |
| Georg Simmel Award of the International Network of Social Network Analysis and keynote 'What Binds Us When With Whom? Content and Structure in Social Network Analysis' International Social Network Conference XXIV, Portoroz (May 2004) |
| Officer in the Order of Oranje-Nassau (decorated in 2002) |
| Member of the European Academy of Sociology |