The 62 largest owners of payment card acceptance contracts with U.S. merchants acquire transactions from American Express, Discover, Diners Club, JCB, Mastercard, Visa and UnionPay credit, debit and prepaid cards. In addition to those global brands, they also acquire domestic-only debit brands led by Interlink, Star, Nyce, Pulse and Accel. Those acquirers also settle transactions on behalf of payment facilitators and aggregators such as Block, Stripe and PayPal as well as hundreds of independent sales organizations. Fiserv figures in the graphic on page 1 and the top 20 tables include it...