American Express (AXP) will be using the blockchain network developed by Ripple (XRP). According to CNBC, payments made by business customers will be routed through Ripple’s blockchain networkand allow cross-border, non-card payments. “What once took days to complete and settle will now occur instantly thanks to Ripple’s blockchain technology. “This blockchain solution opens up a new channel between the U.S. and the U.K. and presents significant opportunity for payments globally,” said Jose Luis Calderon, the head of global transaction banking at Banco Santander.”
(https://www.fool.com/investing/2017/11/24/move-over-bitcoin-and-ethereum-make-way-for-ripple.aspx)