About
James da Costa is a partner at Andreessen Horowitz, where he focuses on investing in B2B software and financial services.
Prior to joining a16z, James was a Y Combinator-backed fintech founder. Previously, James served as an engagement manager at McKinsey & Company.
James holds an MBA from Stanford University. While at Stanford, James was a researcher in Stanford’s Human Centered AI Lab, where he focused on the economic implications of AI. James is also a published author.
Originally from the UK, James is based in San Francisco. He is an avid racket sports fan.
Latest Content by James
Big Ideas 2026: New Infrastructure Primitives
Need for Speed in AI Sales: AI Doesn’t Just Change What You Sell. It Also Changes How You Sell It.
How Big Bank Fees Could Kill Fintech Competition (July 2025 Fintech Newsletter)
CFO roundtable: AI growth, pricing, and forecasting (June 2025 Fintech Newsletter)
Expert News by a16z
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Expert News by a16z
We have built a network of experts who are deeply rooted in technology and how it’s shaping our future. Subscribe to our newsletters to receive their perspectives.