The post-money valuation of its Series B round, closed earlier this year, was about $225 million, according to PitchBook Data. Ribbit Capital and Y Combinator Continuity fund, as well as individuals including PayPal co-founders Peter Thiel and Max Levchin, are existing investors. Yuri Milner, founder of DST Global, is also an investor. In addition to issuing credit cards, Brex offers expense-management software, where it competes with large companies such as SAP Concur, as well as smaller ones like Expensify, Divvy and Bento Technologies Inc.

https://www.wsj.com/articles/credit-card-startup-brex-seeks-1-billion-valuation-in-new-round-1537470950?mod=searchresults&page=1&pos=1