Owners of the 59 largest portfolios of merchant payment card acceptance contracts in the US are shown here. Transactions they acquired in 2024 included those from American Express, Discover, Diners Club, JCB, Mastercard, Visa and UnionPay credit, debit and prepaid cards—the global network brands. Also included are US domesticonly debit card brands led by Interlink, Star, Nyce and Pulse, in addition to a small amount of private label and EBT card transactions. Some of these acquirers settled transactions that originated at payment facilitators and aggregators such as Block, Stripe and PayP...