ryan b

Ryan Babenzien is a General Partner at Fifty Years VC based in San Francisco, California, United States. Before joining the firm in March 2024, he served as a Principal at Initialized Capital and held operational roles at financial technology companies Brex and Square. He holds a Bachelor of Science in Computer Science from Stanford University and has managed over $100 million in capital deployments across his venture career. His investment portfolio includes more than twenty companies such as Replit, Ironclad, and Perplexity AI, and he recently led a $25 million Series A funding round for Mem0 in January 2025. Additionally, he spoke on artificial intelligence investing at TechCrunch Disrupt in October 2025. Babenzien leverages his operational background to focus on early-stage investments across artificial intelligence infrastructure, financial technology, climate technology, and enterprise software.