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Billionaire Profile
Diamantis Diamantides & family
Global Rank
#3282

Diamantis Diamantides & family

CEO, Shipping
Athens, Greece
Real-Time Net Worth
$1.07B
Estimated based on Shipping stock value as of September 10, 2026
0% (24h)
Age
78
Source
Shipping
Industry
Logistics
Citizenship
Greece

Biography

Diamantis Diamantides, a Greek self-made billionaire, is a prominent figure in the global shipping industry. Born on July 1, 1947, Diamantides founded Marmaras Navigation in 1976 and Delta Tankers in 2006, building a substantial empire in the shipping sector. His wealth source is primarily shipping, with a net worth estimated at $1.1 billion as of 2024. Diamantides is known for his astute and often contrarian approach to the cyclical shipping market. His career is marked by key business decisions, including the strategic buying and selling of vessels. Diamantides's career and wealth are primarily from shipping, operating both Delta Tankers and Marmaras Navigation. These companies own numerous tankers and bulk carriers that transport essential commodities across the globe. Diamantides's son, Paschalis, founded Velos in 2019.

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Data Updated
Sep 10, 2026
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Wealth Over Time

Net Worth History

YearNet Worth
2026$1.07B
2025$1.10B
2024$1.10B
2020$976M

Portfolio Holdings

Marmaras Navigation

Marmaras Navigation

Shipping
Details not available
Founded 1976

In-Depth Profile

Early Life

Diamantis Diamantides was born in Kastoria, Greece, on July 1, 1947. Diamantides is a Greek self-made billionaire. He started his career in shipping and built his empire from the ground up. Diamantides is known for his astute and often contrarian approach to the notoriously cyclical shipping market, buying and selling vessels at opportune times.

Rise to Success

Diamantides founded Marmaras Navigation in 1976 and started Delta Tankers in 2006. He has built a modern and efficient fleet, making his companies highly respected in the maritime world. Diamantides has focused on building a modern and efficient fleet. Delta Tankers operates a fleet of crude oil and product tankers, and Marmaras Navigation focuses on dry bulk carriers.

Key Business Strategies

Diamantides's success is rooted in strategic investments in the shipping market. He is known for buying and selling vessels at opportune times. Diamantides's firms own 55 tankers and bulk carriers. His son, Paschalis, founded his own firm, Velos, in 2019. Diamantides also owns large land holdings in the Astir peninsula, a wealthy enclave south of Athens on the Aegean coast.

Philanthropy

Details of Diamantides's specific philanthropy are not readily available in the search results. However, it is mentioned that his philanthropy often supports cultural and social initiatives in Greece.

Career Milestones

1976

Founded Marmaras Navigation

Established Marmaras Navigation, marking his initial venture in the shipping industry.

2006

Founded Delta Tankers

Founded Delta Tankers, expanding his presence in the tanker sector.

2019

Son founded Velos

His son, Paschalis, founded his own shipping firm, Velos.

Philanthropy & Social Impact

Cultural and Social

Cultural and social initiatives

Undisclosed

Supports cultural and social initiatives in Greece.

Business Philosophy & Leadership

Notable Quotes

"Details not available"

Leadership Principles

Strategic investments

Diamantides is known for buying and selling vessels at opportune times in the shipping market.

Building an efficient fleet

Diamantides has focused on building a modern and efficient fleet.

Controversies & Challenges

2019

Brazil Oil Spill

The Bouboulina, a tanker managed by Delta Tankers, was suspected of being the source of a massive oil spill off the coast of Brazil.

2023

Ukraine's International Sponsors of War

Ukraine added Delta Tankers to its International Sponsors of War list due to its alleged involvement in transporting Russian oil.

Billionaires Connected to Diamantis Diamantides & family

Peers in Logistics

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Richest in Greece

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Adjacent Global Ranks

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Frequently Asked Questions

What is Diamantis Diamantides & family's net worth in 2026?
As of 2026, Diamantis Diamantides & family's estimated net worth is $1.071 billion, ranking #3282 among the world's billionaires. The estimate is based on publicly available shareholding data and market prices, updated daily.
How did Diamantis Diamantides & family make their money?
Diamantis Diamantides & family's wealth primarily comes from Shipping, most notably through Shipping.
Where is Diamantis Diamantides & family from?
Diamantis Diamantides & family is from Greece.
How old is Diamantis Diamantides & family?
Diamantis Diamantides & family is 78 years old.

Sources & References

Citations for this profile have not been published yet. Net worth figures here are estimates and should not be treated as verified. See our methodology for how these estimates are produced, or report a correction.