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Bank of New York Mellon is a global investment company involved in managing and servicing financial assets throughout the investment lifecycle. The bank provides financial services for institutions, corporations, and individual investors, delivering investment management and services in 35 countries and more than 100 markets. BNY is the largest global custody bank in the world, with $59.3 trillion in under custody or administration (as of December 2025), and can act as a single point of contact for clients looking to create, trade, hold, manage, service, distribute, or restructure investments. BNY's asset-management division manages about $2.2 trillion in assets.

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.