 It was founded in 1975 by Ioannis Dionisiadis, Achilleas Folias and Nikolaos Pappas in Thessaloniki and has grown into one of the most well-reputed firms in Greece.It is the leading fast-food restaurant of Greece, having left behind the international chain McDonald's.In July 2001, after a hostile acquisition, Delta Holding S.A. became the major stakeholder in the company.