Marisa Melliou

Group Audit Director


Marisa is leading the internal audit and assurance activities of OPAP Group and is a member of the Group Information Security Committee. She has been working with audit teams in data science and analytics, robotics process automation, and cybersecurity before turning her focus to the global blockchain community and crypto-asset space. Previously, she worked as Chief Internal Auditor at the Hellenic Financial Stability Fund, as Associate Group Audit Director at the National Bank of Greece (NBG) and as Enterprise Risk & Assurance Services Senior Manager at Deloitte. She is a member of the Global Board Ready Women club and has contributed as a Board member of the Athens Chapter of ISACA, as a member of Hellenic Corporate Governance Council working team that revised the governance code for the Listed Companies in the Athens Stock Exchange, and as a member of ENISA Cyber insurance policy working team. Marisa occasionally gives lectures at the National and Kapodistrian University of Athens, the Athens University of Economics and Business, The American College of Greece, as well as at the Central Bank of Greece and the Central Bank of Egypt, while she is often invited as a speaker at professional conferences and international summit meetings. She holds a postgraduate studies certificate on Blockchain Strategy (Oxford University, Said Business School), an MSc in Information Management (University of Sheffield, UK) a Bachelor’s degree in Business Administration (Deree - The American College of Greece) and several professional certifications (ISO 27001 LA, CIA, CISA, CCO, CAML, CRMA).