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UBS is a global financial institution built around its core strength in wealth management, serving high and ultra-high-net-worth individuals. In Switzerland, it also operates as a traditional retail and commercial bank. Its investment bank and asset management divisions complement the wealth business, providing tailored solutions to UBS clients while serving third-party customers by leveraging UBS' global reach and expertise.

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.