Costis founded Globo in 1997 and became an executive director in 2007. In addition to his role at Globo, Costis serves as the non-executive chairman and a director of Hellenic Capital plc. He is also chairman to the Hellenic Information Technology & Communications Enterprises and the Athens Chamber of Commerce. Previously he worked as the operations and exports manager at Sparti Hellas S.A and has participated in more than 15 national and international ICT projects. He holds a degree in Electrical Engineering from the National Technical University of Athens.