Theodore Fessas is the founder and the major shareholder of Quest Holdings S.A.

Quest Holdings, established in 1981 (as Info-Quest), owns leading Greek companies in the sectors of Information Technology (Info-Quest Technologies, iSquare, iStorm, Unisystems), Parcel delivery (ACS courier services) and Renewable Energy (Quest Energy, Quest Solar), with a consolidated annual turnover of about € 300 m. Mr. Fessas holds a Mechanical & Electrical Engineering diploma from the National Technical University of Athens and a MSc in Thermodynamics from the University of Birmingham, UK.
Mr. Fessas has served as Vice-Chairman of the boards of the Hellenic Federation of Enterprises (SEV), is member of the Board of Directors of International Chamber of Commerce (ICC-Hellas) and the Honorary President of the Federation of Hellenic Information Technology & Communications Enterprises (SEPE).