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Sumitomo Mitsui Financial Group is roughly tied with Mizuho Financial Group for the status of Japan's second-largest bank after Mitsubishi UFJ Financial Group. It has a larger consumer finance business than the other two megabanks, owning 100% of the Promise business and SMBC Card. In securities, its SMBC Nikko unit is Japan's third-largest retail broker, although SMFG has lagged somewhat in institutional securities business and asset management.

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.