Constantinos Martinos

Constantinos "Dinos" Martinos (born 1953) is a Greek billionaire shipowner and businessman. His brother is Thanasis Martinos.

From an early age, he was actively involved in shipping, helping manage the family fleet from the mid-1960s. In 1972, he co-founded Thenamaris Ships Management with his mother and siblings. Over time, the siblings withdrew from the business, leaving him as the principal manager. Today, Thenamaris is one of the world’s leading shipping companies, operating a modern fleet of over 95 vessels, including tankers, bulk carriers, LNG carriers, and container ships.

Recognition In 2011, Lloyd's List named him number 67 in their list of the Top 100 most influential people in the shipping industry.

Constantinos Martinos’ net worth is estimated at $2.24 billion listed at 1690 globally.

He is also known for its contributions to philanthropy and social initiatives including the funding and foundation of a new building with 115 hospital beds at the Asklipieio Hospital of Voula, a project valued at 10 million euros.