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Goldman Sachs is a storied financial institution, founded in 1869 and best known for its role as a leading global investment bank. The firm has a significant reach across global financial centers and has been the leading provider of global merger and acquisition advisory services, by revenue, for the past 20 years. Since the global financial crisis, Goldman has expanded its offerings into more predictable, fee-based businesses like asset and wealth management, which contributed roughly 30% of postprovision revenue at the end of 2025. The firm generates revenue from investment banking, global market making and trading, lending, asset management, wealth management, and a small and declining portfolio of consumer credit card loans.

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.