| Visa | visa | The world’s largest card network by transaction volume. Accepted in over 200 countries and territories. |
| Mastercard | mastercard | A global payment network accepted in over 210 countries and territories. |
| American Express | amex | A global charge and credit card network, popular in the US, UK, and Australia. Amex operates as both card issuer and network. |
| Discover | discover | A major US card network also accepted in select international markets through partnerships with Diners Club, JCB, and UnionPay. |
| JCB | jcb | Japan’s largest card network, with growing international acceptance across Asia-Pacific, Europe, and the Americas. |
| UnionPay | unionpay | China’s national card network and the world’s largest by number of cards issued. Increasingly accepted internationally. |
| Diners Club | diners-club | One of the world’s first charge card networks, now part of the Discover Global Network. Widely accepted for travel and entertainment. |
| Maestro | maestro | Mastercard’s international debit card brand. Widely used in Europe, particularly in the UK, Germany, Austria, and the Netherlands. |