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FactSet provides financial data and portfolio analytics to the global investment community. The company aggregates data from third-party data suppliers, news sources, exchanges, brokerages, and contributors into its workstations. In addition, it provides essential portfolio analytics that companies use to monitor portfolios and address reporting requirements. Buy-side clients (including wealth and corporate clients) account for over 80% of FactSet's annual subscription value. In 2015, the company acquired Portware, a provider of trade execution software. In 2017, it acquired BISAM, a risk management and performance measurement provider. In 2022, it completed its purchase of CUSIP Global Services.

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.