More than 90 domestic-only general purpose debit and/or credit card brands operate worldwide. There are 30 domestic-only credit card brands and all operate outside the U.S. The 25 largest domestic-only credit issuers are ranked here by purchase volume for goods and services in 2020. The top 25 domestic-only debit card issuers were shown in issue 1209. Collectively, these top 25 credit card issuers accounted for $162.85 billion in purchase volume, a decrease of 4% versus 2019. More than 92% of purchase volume was generated by credit cards issued in South Korea. While credit cards accou...