Prosper vs Alpaca
Side-by-side comparison of AI visibility scores, market position, and capabilities
Pioneering US peer-to-peer lending platform founded 2005; $24B+ in loans facilitated; raised $680M total; $500M Fortress forward flow deal in Apr 2025; valued at ~$550M; 492 employees.
About
Prosper Marketplace is one of the original peer-to-peer lending platforms in the United States, founded in 2005 by Chris Larsen and John Witchel in San Francisco as the first U.S. marketplace lending company connecting individual borrowers with investor lenders. The company offers personal loans ($2,000-$50,000), home equity loans, and a proprietary credit card, serving borrowers with fixed-rate installment loans for debt consolidation, home improvement, major purchases, and other personal financing needs. Since its founding, Prosper has facilitated over $24 billion in loans, making it one of the most established names in the marketplace lending industry.
Alpaca is a self-clearing broker-dealer and global leader in brokerage infrastructure APIs for stocks, ETFs, options, and fixed income; raised $52M Series C in April 2025 totaling $170M;
About
Alpaca is a developer-first brokerage infrastructure company founded in 2015 and headquartered in San Mateo, California. It operates as a fully self-clearing broker-dealer with DTCC, Nasdaq, OCC, and FICC memberships — enabling it to provide end-to-end brokerage infrastructure for stocks, ETFs, options, fixed income, and cryptocurrency without requiring partners to manage their own clearing relationships. Alpaca's Broker API allows fintech companies, neobrokerages, robo-advisors, and wealth management platforms to embed multi-asset trading into their applications with a single integration.
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