P anagiotis Tsakos is a Greek billionaire and a major figure in the global shipping industry. He is the founder of the Tsakos Group, a major international shipping company with a large and diversified fleet of vessels, including oil tankers, container ships, and dry bulk carriers. He is a classic Greek shipping tycoon who has built his empire over many decades and is a highly respected figure in the maritime world.

He has also diversified his family's interests into other areas, including shipbuilding and repair. His publicly traded company, Tsakos Energy Navigation, is a major player in the global oil tanker market. His family's wealth is derived from their ownership of this massive and successful shipping enterprise. His son, Nikolas Tsakos, is the CEO of the company and has been a key figure in its continued growth and modernization.