Constantinos Martinos & family
$2.24B
as of 02/16/26
About Constantinos Martinos & family
Constantinos Martinos is the owner of Greek shipping firm Thenamaris, which has a fleet of 95 tankers, bulk carriers, container ships and LNG carriers.
He cofounded the company in 1972 with his mother and two brothers. His brothers, Athanasios and Andreas, split off in 1990 and 1998, respectively, leaving him with Thenamaris.
Collectively, Constantinos and his brothers own the largest shipping fleet in Greece, the largest shipowning nation in the world.
Thenamaris is now run by his son, Nikolas. His other son Ioannis runs shipping services firm Signal Group.
Personal stats
Citizenship
GreeceSource of wealth
ShippingResidence
Athens, GreeceMarital status
MarriedBirth date
01/28/53 (age 73)Number of children
3Self-made
self-madeConstantinos Martinos & family’s fortune is worth
37K
troy ounces of gold
34K
median U.S. household
22K
median U.S. income
0.045%
U.S. credit card volume
0.009%
GDP of the United States
0.007%
United States debt
Net worth history
Annual ranking
Related people
Net worth over time
Real-time ranking
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