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Apollo is one of the world's largest alternative asset managers, with $1.047 trillion in total assets under management, or AUM, including $858.0 billion in fee-earning assets, at the end of June 2026. The company has two core operating segments: asset management and retirement services. Apollo operates with scale in most of its major asset management endeavors—private equity (with an estimated $137.2 billion in total AUM and $76.3 billion in fee-earning AUM), real estate/real assets ($60.8 billion/$27.6 billion), and credit ($849.3 billion/$754.1 billion). Apollo has a distribution profile that is likely not too far off from the industry averages—with 84% of its assets held by institutional investors and 16% by high-net-worth clients.

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.