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Nubank is a Brazilian financial technology firm that offers digital banking services in Brazil, Mexico, and Colombia. Founded in 2013, it is best known for its credit cards and online savings accounts. However, Nubank has expanded its offerings to cover consumer loans, insurance, investments, and cryptocurrency through its mobile app. Thanks to its success in disrupting Brazil's concentrated and fee-heavy banking sector, the company now serves over 100 million customers across its three core markets. Brazil provides more than 90% of its revenue.

Visa is the largest payment processor in the world. In fiscal 2025, it processed almost $17 trillion in total volume. Visa operates in over 200 countries and processes transactions in over 160 currencies. Its systems are capable of processing over 65,000 transactions per second.