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StoneCo Ltd is a provider of financial technology solutions. It serves MSMBs solutions, at fair prices, and provides the customer experience to help them manage their businesses and sell more. Its Stone Business Model combines end-to-end, cloud-based technology platforms; differentiated hyper-local and integrated distribution approaches; and white-glove, on-demand customer service. The brands of the company include: Stone: For small and medium-sized businesses, all management is integrated with the payment terminal, business bank account, and card, all within the same app. Ton: For micro-entrepreneurs and freelancers, modern card machines, sales via Pix or TapTon, and a Super Account. Stone pagar.me for those who sell online. Digital payment technology for all types of businesses.

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.