Capital Clean Energy Carriers Corp., a shipping company, provides marine transportation services in Greece. The company's vessels provide a range of cargoes, including liquefied natural gas, containerized goods, and cargo under short-term voyage charters, and medium to long-term time charters. It owns vessels, including Neo-Panamax container vessels, Panamax container vessels, cape-size bulk carrier, and LNG carriers. In addition, the company produces and distributes oil and natural gas, including biofuels, motor oil, lubricants, petrol, crudes, liquefied natural gas, marine fuels, natural gas liquids, and petrochemicals. It serves as the general partner of the company. The company was formerly known as Capital Product Partners L.P. and changed its name to Capital Clean Energy Carriers Corp. in August 2024. Capital Clean Energy Carriers Corp. was incorporated in 2007 and is headquartered in Piraeus, Greece. Capital Clean Energy Carriers Corp. operates as a subsidiary of Capital Maritime & Trading Corp.

Teekay Corporation Ltd. engages in the crude oil and other marine transportation services worldwide. The company owns and operates crude oil and refined product tankers. It also provides ship-to-ship support services; tanker commercial management operation services; and operational and maintenance marine services. As of March 1, 2024, the company operated a fleet of approximately 53 owned and chartered-in vessels. It serves energy and utility companies, oil traders, oil consumers and petroleum product producers, government agencies, and other entities that depend upon marine transportation. The company was formerly known as Teekay Corporation and changed its name to Teekay Corporation Ltd. in October 2024. Teekay Corporation Ltd. was founded in 1973 and is headquartered in Hamilton, Bermuda.

StealthGas Inc., together with its subsidiaries, provides seaborne transportation services to liquefied petroleum gas (LPG) producers and users worldwide. The company's carriers carry various petroleum gas products in liquefied form, including propane, butane, butadiene, isopropane, propylene, and vinyl chloride monomer, as well as ammonia; refined petroleum products, such as gasoline, diesel, fuel oil, and jet fuel; and edible oils and chemicals. It offers crude oil and natural gas. The company operates a fleet of 33 LPG carries, including six JV vessels. StealthGas Inc. was incorporated in 2004 and is based in Athens, Greece.

Seanergy Maritime Holdings Corp., a shipping company, provides marine dry bulk transportation services. It operates a fleet of 19 vessels, including 1 Newcastlemax and 18 Capesize with an aggregate cargo carrying capacity of approximately 3,417,608 dwt. The company was formerly known as Seanergy Merger Corp. and changed its name to Seanergy Maritime Holdings Corp. in July 2008. Seanergy Maritime Holdings Corp. was incorporated in 2008 and is based in Glyfada, 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.

C3is Inc. offers international seaborne transportation services. It provides its services to dry bulk charterers, including national and private industrial users, commodity producers and traders, oil producers, refineries, and commodities traders and producers. The company owns and operates a fleet of two drybulk carriers, which transport major bulks, such as iron ore, coal and grains, as well as minor bulks comprising bauxite, phosphate, and fertilizers, and one Aframax crude oil tanker that transports crude oil. C3is Inc. was founded in 2021 and is based in Athens, Greece.

Pyxis Tankers Inc. operates as a maritime transportation company with a focus on the tanker and dry-bulk sectors worldwide. It operates through Tanker Vessels and Dry-Bulk Vessels segments. The company's fleet transports refined petroleum products, such as naphtha, gasoline, jet fuel, kerosene, diesel, and fuel oil, as well as other liquid bulk items, including vegetable oils and organic chemicals. As of March 15, 2024, it operated a fleet of three double hull product tankers and two dry-bulk vessels. Pyxis Tankers Inc. was incorporated in 2015 and is based in Maroussi, Greece. Pyxis Tankers Inc. is a subsidiary of Maritime Investors Corp.

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.