After two decades at Ford and USAA, David Kimball joined Prosper just as marketplace lending lost its footing. His answer was to make growth sustainable - and give the business time to find its balance.
Prosper started with people lending to people. More than $32 billion in personal loans later, its story turns on who supplies the money - and who carries the risk.
Online lenders made borrowing faster. Orchard Platform tried to make their loans easier for institutions to buy, compare and trade. Its most revealing lesson arrived when the data business became a marketplace.
The New York fintech began with a provocative bargain: fund a young person now and share in their future income. Its retreat into ordinary loans is a compact lesson in why financial products must be understandable before they can be clever.
Cross River sits behind some of fintech's most familiar names, turning bank accounts, loans, cards and real-time payments into software building blocks. Its wager is that the most valuable bank of the internet age may be the one customers rarely see.

Peter Renton is one of fintech's original chroniclers - an Australian-born entrepreneur who turned a P2P lending hobby blog into LendIt, the world's largest fintech conference, and Fintech Nexus, a media empire reaching 225,000+ banking and fintech executives. After Fintech Nexus filed for Chapter 7 in 2024, he launched Renton & Co and continues hosting the Fintech One-on-One Podcast, the longest-running one-on-one interview show in fintech, now past 628 episodes and 1 million downloads.