NIKI “Chine-Greece Laser Technology Joint Laboratory on Cultural Heritage”, Bilateral collaboration between China and Greece (2016-2020)

“Laser cleaning demos on the late roman mosaic floors of the national garden of Athens”, 2-days workshop organized by the TEI – Athens, the Greek Ministry of Culture, the Ephorate of Antiquities of Athens & sponsored by J.M. Kaplan Fund (2019)

“St Trophime Cloister, Arles, France; on-site laser cleaning Campaign” in collaboration with Integrated Conservation Resources, Inc (A.Trienens & G. Bournazian) funded by the World’s Monument Fund (2008-2009)

“Towards non-destructive analysis in archaeological and conservation science”, The University of Glasgow – Department of Archaeology, Collaboration-International Network project, granted to the University of Glasgow by the Leverhulme Trust (2009-2011)

“LMntI Development of a laser induced breakdown spectroscopy instrument for the analysis of archaeological samples”, Bilateral project with Institute for Aegean Prehistory INSTAP, USA (1999- 2002)