ONYX TOURISTIKI S.A. is a publicly listed Greek company driving innovation in premium              

agri-tourism and luxury real estate development in Greece. ONYX stands out as a key player in 

creating environmentally conscious, high-end tourism destinations that blend upscale 

hospitality with authentic Mediterranean experiences.  

ONYX’s mission emphasizes sustainability, leveraging renewable energy solutions and local    

agri-food production to create year-round tourism appeal, supported by Greece’s record

breaking €23 billion tourism revenues in 2025. 

The company is dedicated to maximizing long-term shareholder value while delivering 

exceptional guest services rooted in Greece’s natural and cultural heritage.  

ONYX, led by the Zisiadis family who divested their stake in Sani Resort in 2015, brings a visionary 

approach to sustainable development and operational excellence. Looking ahead, ONYX is 

focused on its current flagship project, a mixed-use luxury regenerative retreat in Sani

Chalkidiki, while planning to expand its portfolio of luxury agri-tourism and real estate initiatives,

capitalizing on Greece’s growing reputation as a premier global tourism destination. 

Ticker: ΟΝΥΧ (Euronext Athens) 

CEO: Leonidas Zisiadis  

Market Cap: ~€100 million (as of October 2026) 

Sector: Luxury Hospitality & Real Estate Development

Headquarters: Athens, Greece