• European Agency for Reconstruction
• Ministry of Transport, Republic of Bulgaria
• Serbian Railways (ZS)
• NDIA, New Doha International Airport Steering Committee, Doha Qatar
• DG Information Society
• European Commission
• Ministry of Communications and Public Works, Republic of Cyprus

• Ministry of Infrastructure, Transport and Networks, Greece
• Ministry of Development, Greece
• Ministry of Environment, Urban Planning & Public Works, Greece
• Ministry of Transport and Communications, Greece
• Ministry of Economy and Economics, Greece

• Regional Administration of Peloponnese, Greece
• Regional Administration of Northern Aegean, Greece
• Regional Administration of Crete, Greece
• Prefecture of Cyclades, Greece
• Prefecture of Chios, Greece
• Municipality of Laureotiki, Greece
• Municipality of Messini, Greece

• Hellenic Railways Organization (OSE)
• ATTIKO METRO SA, Greece
• ERGOSE SA, Greece
• Athens Urban Transport Organisation SA (OASA)
• Egnatia Odos SA, Greece
• Greek National Tourism Organization
• Volos Port Authority, Greece
• Organization for the Construction of the New Acropolis Museum

• Alpha Bank
• EFG Eurobank Ergasias
• National Bank of Greece
• BNP Paribas
• Bank of Cyprus

Private Firms