TransferWise employees and early investors sold some of their stake in a $319 million secondary deal. : Fintech start-up TransferWise is now valued at $5 billion following a secondary share sale, the company announced Wednesday, highlighting increased investor appetite for online payments amid the coronavirus pandemic. Founded in 2011, TransferWise has become a formidable competitor to the likes of Western Union and MoneyGram by lowering fees and adding a slick online platform to help consumers move money across borders. It now has a total of 8 million customers globally and processes £4 billion ($5.2 billion) in cross-border payments each month.