Money transfers in seconds. A start-up that is trying to usurp Western Union and shake up the $689 billion money transfer market

Western Union is not panicking, but the delivery of money around the world is being upended, says CEO of upstart TransferWise. It broke into the $689 billion remittances market in 2011 after its founders became frustrated with fees they were paying on transfers, and unlike many start-ups is already profitable.