• SmartWaterSave- A real time monitoring and leakage detection and reduction system in water distribution networks, 2018-2020, Project Coordinator Municipality of Prespes, AUTh Coordinator P. Prinos, INTERREG-IPA CBS, Greece-The Former Yugoslav Republic of Macedonia.

• SWARM- Strengthening of master curricula in water resources management for the Western Balkans HEIs and stakeholders, 2018-2021, Project Coordinator Prof. M. Gosic, Univ. of Nis, Serbia, AUTh Coordinator P. Prinos, Funded with the support of the European Commission, Co-funded by the ERASMUS+ Programme of the European Union, Project Number 597888-EPP-1-2018-1-RS-EPPKA2-CBHE-JP

• THALIS: Climate Change effects on the sea level and wave climate of the Geek seas, the vulnerability of coastal regions and the safety of coastal structures, 2012-2015, Project Coordinator Prinos P., Research Funding by European Social Fund, NSRF 2007-2013. 

• Μελέτη Υπερχειλιστή Φράγματος Νεστορίου Νομού Καστοριάς σε υδραυλικό ομοίωμα, 2011-2012, Επιστημονικός Υπεύθυνος Π. Πρίνος, Εργο Παροχής Επιστημονικών Υπηρεσιών

• Εργαστηριακές δοκιμές για τη διερεύνηση εναλλακτικών μέτρων προστασίας ακτών, 2012, , Επιστημονικός Υπεύθυνος Π. Πρίνος, Έργο Παροχής Επιστημονικών Υπηρεσιών

• Έλεγχος της ροής στη γραμμική δεξαμενή Flo-Channel Tank Module της εταιρίας Atlantis Corp.Ltd, 2012, Επιστημονικός Υπεύθυνος Π. Πρίνος, Έργο Παροχής Επιστημονικών Υπηρεσιών

• SASICE- Safety and Sustainability in Civil Engineering, 2011-2014, Project Coordinator Prof. M. Savoia, Univ. of Bologna, AUTh Coordinator P. Prinos, LLP, Erasmus Curriculum Development, 510823-LLP-1-2010-1-IT-ERASMUS-ECDSP.

• THESEUS: Innovative technologies for safer European coasts in a changing climate, 2009-2013,  Project Coordinator B. Zanuttigh, AUTh Coordinator Prinos P., Research Funding by EU, FP7 ENV2009-1 Large Integrated Project, Contract 244104.

• Large scale experiments on Wave propagation over Posidonia oceanica, 2008, Research Coordinator Prinos P., Research Group: I. Losada, Univ. of Santander, Spain, C. Amos, Univ. of Southampton, UK,  M. Sclavo, ISMAR, Italy, Research funding by HYDRALAB III-Access to Large Scale facilities-EU. Experiments performed in LIM/UPC, Spain (Lab. Director : Prof. A. Sanchez-Arcilla)

• ENCORA: A European Concerted Action on Coastal Research, 2006-2008, Project Coordinator J. Dronkers, RIKZ, The Netherlands, Research Supervisor Prinos P., Research Funding by EU, FP6 Global Change and Ecosystem

• Wave run-up and overtopping, 2005-2007, Επιστημονικός Υπεύθυνος Π. Πρίνος, Ερευνητική Ομάδα Χρ. Κουτίτας, Θ. Καραμπάς, Ι. Αυγέρης, Χρηματοδότηση ΕΠΕΑΚ, ΠΥΘΑΓΟΡΑΣ ΙΙ.

• Interaction of waves with rubble-mound breakwaters, 2004-2006, Επιστημονικός Υπεύθυνος Χρ. Κουτίτας, Ερευνητική Ομάδα Π. Πρίνος, Θ. Καραμπάς, Ε. Κουτάντος, Α. Ζέρης, Χρηματοδότηση ΕΠΕΑΚ, ΠΥΘΑΓΟΡΑΣ Ι.

• Integrated Flood Risk Analysis and Management Methodologies, 2004-2009, Project Coordinator P. Samuels, HR Wallingford Ltd., Research Supervisor Prinos P., Research Funding by EU, FP6-2002-GLOBAL-1, FP6505420

• Floating breakwaters and Coastal Protection, 2002-2006, Επιστημονικός Υπεύθυνος Χρ. Κουτίτας, Ερευνητική Ομάδα Π. Πρίνος, Ε. Κουτάντος, Θ. Κόφτης, Χρηματοδότηση ΓΓΕΤ, ΠΕΝΕΔ Ι.

• Large scale experiments on floating breakwaters, 2002, Research Supervisors Prinos P., A. Otta (Splash Hydrodynamics, Netherlands) , Scientific Team E. Koutandos, Research funding by Access to Large Scale facilities-EU . Experiments performed in LIM/UPC, Spain (Lab. Director : Prof. A. Sanchez-Arcilla)

• Environmental design of low crested coastal defense structures –DELOS , 2001-2004, Project Coordinator A. Lamberti, U. of Bologna, DISTART, Research supervisor Ch. Koutitas, , Scientific Team Prinos P.,  I. Avgeris, Participating labs: DISTART, LES, DSIC, MODIMAR, AALBORG UNIV., ISVA, DHI, UNIV. CANTABRIA, LIM/UPC, MICS, WL, SOES, AUTh , Research funding by EU-EESD

• Large scale experiments on monolithic submerged breakwaters, 1997-1998, Research Supervisors Prinos P., Th. Karambas, Scientific Team A. Kriezi, Research funding by Access to Large Scale facilities-EU . Experiments performed in LIM/UPC, Spain (Lab. Director : Prof. A. Sanchez-Arcilla)

• Dynamics of Beaches,  1994-1995, Research Supervisor Prinos P., Participating Universities  AUTh, UPC, UL, DUT, UCC, UG, Research funding by Human Capital and Mobility – EU

• Mass Transfer at an air/water interface, 1994-1995, Research Supervisor Prinos P., Scientific Team A. Zeris, Scientific and Research Bilateral cooperation Greece/France.

• Study of non-equilibrium two-phase flow in steam turbines,  1989-1992, Research Supervisor A. Goulas, Scientific Team Prinos P., V. Christoforou, Research funding by BRITE-EURAM – EU

• Flow Pipe Components,  1989-1990, Research Supervisor A. Goulas, Scientific Team Prinos P., Research funding by EEC – BCR

• Flow measurements in a Diesel Engine Cylinder under Steady-State Conditions Simulating Scavenging, 1985-1986, Research Supervisor S. Tavoularis, Scientific Team Prinos P., Research funding by Dept. of National Defence, Ottawa, Canada

• Subchannel Flow Measurements in a Model of the 37-Rod Candu Reactor Fuel Bundle, 1985-1986, Research Supervisor S. Tavoularis, Scientific Team Prinos P., S. Sitaraman, Research funding by    Atomic Energy of Canada, Chalk River Nuclear Lab. Canada.