NU

Nu Holdings Ltd.

A Brazilian digital bank, often called Nubank, built entirely around a smartphone app. It offers a purple credit card—nicknamed the 'roxinho' (little purple one) in Brazil—along with savings accounts and loans, used by tens of millions of customers. Founded in 2013 by Colombian-born David Vélez and co-founders Cristina Junqueira and Edward Wible, it took its name from the Portuguese word 'nu,' meaning naked, to signal no hidden fees.