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MPC Münchmeyer Petersen Capital AG is an investment and asset management firm specializing in infrastructure projects within the maritime and energy sectors. Founded in 1994 and headquartered in Hamburg, Germany, the company develops and manages tailored investment solutions, focusing on institutional investors. As of December 2024, MPC Capital managed assets totaling €5.1 billion, supported by a workforce of over 300 employees across multiple locations. In December 2024, Castor Maritime Inc., through its subsidiary Thalvora Holdings GmbH, acquired a 74.09% majority stake in MPC Capital, aligning with its strategic focus on maritime and energy infrastructure investments.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.