Greek General Secretariat for Research and Technology, ARISTEIA II: "SCYPE: Security and Forensics Analysis Framework for Cloud-enabled Multimedia Communication SYstem ProvidErs", (2014-2015) - Principal Investigator.

National Strategic Reference Framework 2007-2013, "Simplification and Computerization of the Administrative procedures of the University of the Aegean" (2011-2013).

General Secretariat for Research and Technology, PENED Programme, "Interdomain AAA and context aware Security of Mobile Multimedia Services over ALL-IP based wireless network infrastructures" (2006-2009).

Greek Ministry of Development, PABET-NE-2004, "iLearn: Research and Development for best Methodologies, Procedures, and Specifications for the implementation of an integrated state-of-the-art Internet-based eLearning and eTraining platform", (01.2004-01.2006).

BBVA Foundation (Leonardo Grant), "COSMOS: Collaborative, Seamless and Adaptive Sentinels for the Internet of Things", University of Murcia (09.2017-03.2019).

EU Programme 1G-MED08-309, "MET3 - Mediterranean Transnational Technology Transfer'', MED Programme project concerning the exploitation and development of a toolkit for the uptake of innovative research, University of the Aegean (1.2011-2.2011).

EU Programme FP6 IST-SME-1 Craft Project 005892, "SNOCER: Low Cost Tools for Secure and Highly Available VoIP Communication Services'', University of the Aegean (11.2004-11.2006).

EU Programme, eTEN, "ΕRΜΙΟΝΕ: E-learning Resource Management Service for the Interoperability Network in the European Cultural Heritage Domain'', e-TEN C517357, University of the Aegean, (2005).

EU Programme IST-2001-35120, Project "ICTE-PAN: Methodologies and Tools for building Intelligent Collaboration and Transaction Environments in Public Administration Networks'', University of the Aegean, (2001-2004).