Marios Yiatzidis

Senior Counsel


Phone +30 210 6777277

Marios is a seasoned telecommunications professional with an extensive understanding of various markets and broad experience in the fixed, mobile, and wireless sectors. Over the last 32 years, Marios has built a successful career in telecommunications regulation, competition affairs, and business development. His expertise includes working with consultants, governments, regulators, operators, service providers, new entrants, and the European Commission. Marios is known for his ability to quickly and accurately assess situations, identify problems, and define strategies that deliver results.

Throughout his career, Marios has been involved in implementing diverse projects across many European countries, acting as the regulatory interface for clients with government bodies, regulators, incumbent operators, and European institutions. He has extensive experience in spectrum auctions, network sharing agreements, IoT/M2M connectivity, competition issues, settlements, market analysis, and regulatory compliance.



– L.L.M. in European Law, University Aix-Marseille III, Aix-en-Provence, France

– L.L.B. in Public Law, University Aix-Marseille III, Aix-en-Provence, France

– Diploma in Political Sciences and Public Administration, National University of Athens, Greece


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Greek, English, French