He is the Founder, President and CEO of Tsakos Energy Navigation (TEN) Limited, a pioneering company which is the longest established Greek shipping public listing.
He is married to prominent Greek fashion designer Celia Kritharioti and he has three children.
In December 2015 TEN owned and operated a fleet of 48 product and crude oil tankers on charter to national, major and other independent oil companies and refiners under long, medium and short-term charters, including one 2007-built Liquefied Natural Gas ("LNG") carrier and two 2013-built DP2 shuttle suezmax tankers.
[5] In 2011, he received an honorary doctorate from the City University Business School, for his pioneering work in the equity financial markets relating to shipping companies.
Panagiotis N. Tsakos of the Maria Tsakos Foundation (named after his late sister), a charitable organization for the well-being and education of young, talented men and women focusing on maritime studies and tradition.