Atlas Corp. operates as an asset manager and operator of containerships. It operates through two segments, Containership Leasing and Mobile Power Generation. The company, through its subsidiaries, operates as an independent charter owner and manager of containerships.

The company charters its containerships under long-term and fixed-rate time charters to various container liner companies. It also provides electricity to oil and gas, mining, and other industries, as well as government backed and private utilities; and power solutions comprising plant design, fast-tracked installation of generating equipment and balance of plant, plant operation, and service and maintenance. As of March 1, 2023, the company operated a fleet of 132 vessels, 30 gas turbines, and 274 diesel generators.

Atlas Corp. was incorporated in 2019 and is based in London, the United Kingdom.