• Court of Justice of The European Communities
• Thessaloniki Chamber of Commerce and Industry
• The Greek Statistical Office
• The European Commision in Greece
• Federation of Industries – Northern Greece
• Greek-German Chamber of Commerce and Industry
• The Greek Ombudsman
• Union of Hellenic Chambers
• Athens Exchange
• Management Organisation Unit
• Hellenic Management Association
• Invest in Greece Agency
• American-Hellenic Chamber of Commerce
• Transparency International Greece
• World Intellectual Property Organization
• International Trademark Organization
• European Patent Office
• Competition Committee in Greece
• Hellenic Republic Asset Development Fund
• Hellenic Cadastre
• Organization for Mediation and Arbitration,  Greece