Another marketplace lender joins the unicorn club. Prosper's round was led by many of the banks, including Credit Suisse NEXT Investors, JPMorgan Chase, SunTrust Banks, USAA and BBVA Ventures. the company pulled in $80 million in revenue on $1.6 billion in loan originations last year. And this year, the company believes it is on track to more than double its revenue, to $180 millio