Alipay; Amazon Pay; Apple Pay; Tencent; Google Pay; First Data; Paypal; Fiserv; Visa Inc.; MasterCard; Total System Services (TSYS); Novatti; Global Payments; Financial Software & Systems; Worldline; BlueSnap; Net 1 UEPS Technologies; Wirecard; ACI Worldwide; Worldpay (Vantiv); Aurus Inc; Chetu; Paysafe; PayU; Yapstone; Adyen