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Sofina Société Anonyme, established in 1898 and headquartered in Brussels, Belgium, is a private equity and venture capital firm specializing in direct investments and fund-of-funds strategies. The firm's direct investments focus on growth capital across sectors such as digital transformation, consumer and retail, education, healthcare, and sustainable supply chains. Sofina's portfolio includes minority stakes in both private and listed companies, with a geographic emphasis on Western Europe, North America, and Asia, particularly India, China, and Southeast Asia. The company typically invests between €100 million and €300 million in minority positions and between €20 million and €100 million in fast-growing businesses. Sofina's strategic approach involves long-term support of controlling shareholders and active participation in the governance of its portfolio companies.

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.