Global Ship Lease, Inc., together with its subsidiaries, engages in owning and chartering of containerships under fixed-rate charters to container shipping companies worldwide. As of March 11, 2024, it owned 68 mid-sized and smaller containerships, ranging from 2,207 to 11,040 twenty-foot equivalent unit (TEU), with an aggregate capacity of 375,406 TEU. The company was founded in 2007 and is based in Athens, Greece.

Tsakos Energy Navigation Limited provides seaborne crude oil and petroleum product transportation services worldwide. The company offers marine transportation services for national, major, and other independent oil companies and refiners under long, medium, and short-term charters. It also operates a fleet of double-hull vessels, comprising of conventional tankers, LNG carriers, and suezmax DP2 shuttle tankers. The company was formerly known as MIF Limited and changed its name to Tsakos Energy Navigation Limited in July 2001. The company was incorporated in 1993 and is based in Athens, Greece.

Euroseas Ltd. provides ocean-going transportation services worldwide. The company owns and operates containerships that transport dry and refrigerated containerized cargoes, including manufactured products and perishables. As of March 31, 2024, it had a fleet of 20 containerships with a cargo carrying capacity of approximately 777,749 dwt. The company was incorporated in 2005 and is based in Marousi, Greece.

Imperial Petroleum Inc. provides international seaborne transportation services to oil producers, refineries, and commodities traders. It carries refined petroleum products, such as gasoline, diesel, fuel oil, and jet fuel, as well as edible oils and chemicals, crude oils, iron ore, coal and grains, and minor bulks, such as bauxite, phosphate, and fertilizers. As of April 1, 2024, the company owned and operated a fleet of six medium range refined petroleum product tankers; one Aframax tanker; two suezmax tankers; and two handysize drybulk carriers with a total capacity of 791,000 deadweight tons. The company was incorporated in 2021 and is based in Athens, Greece.

Castor Maritime Inc. provides shipping services worldwide. The company operates through Dry Bulk Vessels and Containerships segments. It offers seaborne transportation services for dry bulk cargo; and commodities, such as iron ore, coal, soybeans, etc. As of December 31, 2023, the company owned and operated a fleet of 17 vessels primarily consisting of one Capesize, five Kamsarmax, two Handysize tanker vessels, and nine Panamax dry bulk vessels, as well as two 2,700 TEU containership vessels. Castor Maritime Inc. was incorporated in 2017 and is based in Limassol, Cyprus.

United Maritime Corporation, a shipping company, offers seaborne transportation services worldwide. It operates a fleet of eight dry bulk vessels comprising three Panamax, three Capesize, and two Kamsarmax vessels with an aggregate cargo-carrying capacity of approximately 922,054 dwt. The company was incorporated in 2022 and is based in Glyfada, Greece.

OceanPal Inc. provides ocean-going transportation services worldwide. The company owns and operates dry bulk carriers that transport major bulks, such as iron ore, coal, and grains, as well as minor bulks, including bauxite, phosphate, and fertilizers. As of December 31, 2023, its fleet consisted of five dry bulk carriers, which include three Panamaxes and two Capesize vessels with a cargo carrying capacity of approximately 572,599 deadweight tons. The company was incorporated in 2021 and is based in Athens, Greece.

Top Ships Inc. owns and operates tanker vessels worldwide. The company's tanker vessels transport crude oil, petroleum products, and bulk liquid chemicals. As of December 31, 2023, it had a fleet with a total capacity of 1,435,000 deadweight tonnes (dwt) consisting of one 50,000 dwt product/chemical tanker, five 157,000 dwt Suezmax tankers, two 300,000 dwt very large crude carriers, and two 50,000 dwt product tankers. The company was formerly known as Top Tankers Inc. and changed its name to Top Ships Inc. in December 2007. Top Ships Inc. was incorporated in 2000 and is based in Marousi, Greece.