Challenger banks including Revolut, Starling, and Curve use Global Processing Services (GPS) as the payment processor for debit, credit, and prepaid cards they offer consumers, as well as for access to automated clearinghouses, faster payments, and real-time payments. Prior to the first fintechs entering the financial services sector, GPS was already using API integrations to serve its prepaid card customers, and all transactions processed were tokenized. The entirely cloud-based technology positions GPS to be a better partner to fintechs than card account management software providers that...