 He is also an associate editor for the journal "BioSystems" and Honorary Editor for the journal "Bioinformatics".He is a founding officer of the International Society for Computational Biology (ISCB), the Mikrobiokosmos initiative (Greece), the Hellenic Society for Computational Biology & Bioinformatics and Hellenic Bioinformatics.Ouzounis was a visiting professor at the University of Toronto (2011-2014).