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Global Rank
#1835

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Constantinos Martinos & family

CEO, Shipping
GREECE
Real-Time Net Worth
$2.245B
Estimated based on Shipping stock value as of March 6, 2026
0% (24h)
Age
73
Source
Shipping
Industry
Logistics
Citizenship
GREECE

Biography

Constantinos Martinos, a prominent Greek billionaire, has significantly impacted the global shipping industry. As the owner of the Greek shipping firm Thenamaris, he controls a fleet of 95 vessels, including tankers, bulk carriers, container ships, and LNG carriers. His source of wealth is shipping. Martinos co-founded Thenamaris in 1972 with his mother and siblings, and he is now 73 years old. His achievements include expanding and modernizing the fleet, positioning Thenamaris as a leading maritime transport company.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Constantinos "Dinos" Martinos was born in 1953 in Glyfada, Athens, Greece. He comes from the historic Martinos family. His mother, Athina Martinos, was one of the first female shipowners in Greece and founded Thenamaris Ships Management in 1971. His brother is Thanasis Martinos.

Rise to Success

From an early age, Martinos was involved in the family's shipping business. In 1972, he co-founded Thenamaris Ships Management with his mother and siblings. Over time, the siblings withdrew from the business, leaving Constantinos as the principal manager. Today, Thenamaris operates a modern fleet of over 95 vessels, including tankers, bulk carriers, LNG carriers, and container ships.

Key Business Strategies

Under his leadership, EMM has leveraged technological advancements and strategic partnerships to optimize operational efficiency and maintain high safety standards across its fleet. Constantinos Martinos is known for his strategic vision and commitment to excellence in the shipping industry.

Philanthropy

Martinos is also known for his philanthropic efforts.

Career Milestones

1972

Co-founded Thenamaris Ships Management

Co-founded Thenamaris Ships Management with his mother and siblings.

2011

Recognized by Lloyd's List

Named number 67 in Lloyd's List's Top 100 most influential people in the shipping industry.

Philanthropy & Social Impact

Healthcare

Supporting Healthcare

Undisclosed

Funding and foundation of a new building with 115 hospital beds at the Asklipieio Hospital of Voula, a project valued at 10 million euros.

Controversies & Challenges

2020

Venezuelan Oil Sanctions

The U.S. imposed sanctions on two ships owned by Thenamaris for carrying Venezuelan oil. They were removed from the sanctions list less than a month later, after both firms pledged to stop trading with Venezuela.

2024

Shipping Russian Oil

According to ship tracking data from MarineTraffic, there are at least 37 tankers owned by Thenamaris that departed Russian ports since February or are currently en route to Russia.

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