Payments SEG Member List
| Member entity | Company |
| Australia | NPP Australia Limited |
| Austria | Bank Austria UniCredit |
| Bank of England | |
| Brazil | IPMF Global |
| Canada | Canadian Payments Association |
| China | China Financial Computerization Corporation |
| China | Rural Credit Banks Funds Clearing Center |
| China | Ant Financial Services Group |
| Denmark | Mastercard |
| Denmark | Danish Bankers Association |
| Denmark | Nordea |
| ECB (European Central Bank) | |
| Euroclear | |
| France | Societe Generale |
| Germany | Deutsche Bank |
| Germany | Deutsche Bundesbank |
| Germany | Informatikzentrum der Sparkassenorganisation GmbH |
| Germany | Security Research and Consulting GmbH (SRC) |
| ISITC | |
| Italy | CBI |
| Japan | Bank of Japan |
| Japan | Promontory |
| Japan | Japan International Cooperation Agency |
| Japan | NTT DATA Corporation |
| Japan | Accenture |
| Japan | TJ Research, Inc |
| MasterCard | |
| NACHA | |
| Netherlands | ABN AMRO |
| nexo standards | |
| Norway | DNB |
| Norway | Bankenes Standardiseringskontor (Bits AS) |
| Ripple | |
| Singapore | Crédit Agricole Corporate & Investment Bank |
| Singapore | TechCreate Solution Private Limited |
| South Africa | BankServ |
| South Africa | PASA |
| Sweden | SEB |
| SWIFT | |
| Switzerland | SIX Group |
| United Kingdom | EBA Clearing |
| United Kingdom | Vocalink Ltd |
| United Kingdom | Barclays |
| United Kingdom | Pay.UK |
| United States | Citi Global Transaction Services |
| United States | Federal Reserve Bank of NY |
| United States | The Clearing House |
| United States | Federal Reserve Bank of Minneapolis |
| United States | The Clearing House |
| United States |
U.S. Bank |
| United States | Mojaloop Foundation |