Άλλο| 19 | 2012 | 2014 | Chair, Departmental Graduate Committee - Petroleum Institute University and Research Center (PI), UAE | |
| 20 | 2012 | 2014 | Manager, Flow Assurance Research Oil Subcommittee - ADNOC, UAE | |
| 21 | 2012 | 2014 | Member, Department Recruiting and promotion Committee - Petroleum Institute University and Research Center (PI), UAE | |
| 22 | 2012 | 2014 | Member, Department Accreditation Committee - Petroleum Institute University and Research Center (PI), UAE | |
| 9 | 2009 | 2015 | Co-Chair, Steering Committee and Horizontal Activity Chair of the Working Group: Skills and Education, European Initiative for Sustainable Development by Nanotechnologies – NANOFUTURES | |
| 10 | 2009 | 2015 | Vice-chair, Working Group: Nonopharmaceutics, European Nanomedicine Technology Platform | |
| 8 | 2008 | 2015 | Member, Ad-hoc Advisory Group on Industrial Nanotechnologies | |
| 12 | 2008 | 2009 | Member, National Council for Research and Technology – ESΕΤ | |
| 11 | 2007 | 2008 | Member, Peer Review Committee for the Evaluation of the Department of Chemistry, Materials and Chemical Engineering of Politecnico di Milano | |
| 14 | 2007 | 2008 | Chairman, Counsil of the Directors of the Greek Research Centers | |
| 16 | 2007 | 2010 | Acting Director, Institute of Biomedical and Biomolecular Research (IBBR/CERTH) | |
| 3 | 2006 | 2015 | Member, Expert Advisory Group (EAG) of the NMP programme (NMP - Nano, Materials, Production) in FP7 | |
| 7 | 2006 | 2015 | Member, Mirror Group of the European Technology Platform for Sustainable Chemistry | |
| 15 | 2006 | 2011 | Vice president and Managing Director, Thessaloniki Technology Park Management and Development Corporation S.A. | |
| 18 | 2005 | 2010 | Director of Central Administration & Chairman of the Board of Directors, Centre for Research and Technology Hellas (CERTH) | |
| 6 | 2004 | 2005 | Co-ordinator, European Nanomedicine Technology Platform | |
| 17 | 2001 | 2006 | Director, Chemical Process Engineering Research Institute (CPERI/CERTH) | |
| 2 | 1998 | 2006 | National Representative and Expert, GROWTH Programme Committee - Fifth and Sixth Framework Programmes for RTD | |
| 1 | 1995 | 1997 | Member, Board of Governors of the Joint Research Centre of European Union | |
| 5 | 1992 | 1995 | Project Technical Auditor, R&D Projects of DGXII of European Commission | |
| 4 | 1989 | 1997 | Member, EC Research Evaluation Committees | |
| 13 | 1986 | 2006 | Member, Scientific Council of the Chemical Process Engineering Research Institute | |
