Evangelos Zacharis is B2B Director at Protergia (Metlen Energy & Metals), responsible for driving commercial growth and operational excellence across the business and public sector segments. He focuses on value creation through innovative energy models such as Energy-as-a-Service, leveraging data, flexibility, and customer-centric solutions. He leads the transformation of B2B energy retail towards a more efficient, data-driven, and integrated model, linking energy supply with energy management, flexibility, and sustainability services. Through this approach, he enables organizations to move from viewing energy as a cost to managing it as a strategic lever, enhancing competitiveness and long-term resilience in an increasingly complex energy landscape. He holds a PhD in Electrical Engineering from Aston University, an MSc in Energy from Heriot-Watt University, and a BSc in Physics from the University of Patras.

Katerina Mitsotaki has been successfully active in the real estate sector for the past twenty years — initially as the founder of Real Est8, and since 2017 as the Owner and CEO of BARNES Greece, the Greek branch of the international luxury real estate network BARNES INTERNATIONAL. She led the establishment of BARNES in the Greek market, aiming to align the local real estate sector with international standards and to develop comprehensive services for the management, promotion, and enhancement of high-end properties. During the economic crisis and beyond, she successfully maintained and strengthened her position in the industry, attracting foreign investors and highlighting Greece as a premier destination for luxury real estate investments. More recently, in light of new developments in the property market, she has emphasized the growing interest among international investors in luxury residences, as well as the diversity of properties being sought — ranging from urban penthouses to secluded island villas.

Christina Moscholidaki has international experience in real estate advisory services, with a focus on feasibility studies and asset valuations. She has assumed roles of responsibility within the asset management sector both in Greece and abroad, where she provided services such as market research, site inspections and valuations, and financial modeling. With prior experience managing a $2.5 billion portfolio at Wells Fargo Bank N.A. in commercial mortgage loan management. Christina specializes in risk management and default mitigation. Her background reflects a solid foundation in financial analysis and accounting. As a certified property inspector recognized by the US Mortgage Bankers Association, she excels in evaluating both internal and external factors, including key property components, providing comprehensive asset valuations. Christina holds a degree in Economics from the National and Kapodistrian University of Athens and an MSc in Techno-Economic Management of Digital Systems from the University of Piraeus.

Giannis Revithis is an economist, property valuer, and real estate broker. He serves as Honorary President of the Attica Association of Realtors and is a former President of the Hellenic Federation of Realtors, as well as the Athens–Attica Association of Realtors. He is also a member of the Athens–Attica Realtors Association and FIABCI Greece. He graduated from the Piraeus School of Industrial Studies in 1980 and holds a Real Estate certification from the University of Macedonia (1987). He is the Founder and Managing Director of REVITHIS Real Estate, a member of the REVITHIS & PARTNERS group, established in 1989. The company manages an extensive real estate portfolio across Greece, including residential, commercial, office, industrial, warehouse, hotel, and resort properties, and provides specialized real estate advisory services. Giannis Revithis has over 33 years of professional experience in the real estate sector and specializes in property valuation, brokerage, negotiation, consulting, as well as market research and analysis. He has participated as a speaker in numerous conferences and exhibitions in Greece and abroad, focusing on the real estate market. His passion for real estate, combined with his market knowledge and experience, has established him as a leading figure in the Greek property market.