Sam Rosenblum

Sam Rosenblum is a Partner and Deal Team Lead at Haun Ventures in Sun Valley, Idaho, where he directs investments for the firm's $1.5 billion debut fund. Before joining Katie Haun's firm in 2022, he served as a General Partner at Polychain Capital, leading business development for a $5 billion crypto fund and a $300 million venture vehicle. From 2014 to 2019, Rosenblum was an early employee and Director of Global Business Development at Coinbase, overseeing international expansion, mergers and acquisitions, and the company's initial venture investments. His earlier professional career includes strategic roles at Visa, Lake Partners, and the United States Department of Justice, following his graduation with honors from the UCLA Honors College. Investing personally in digital assets since 2013, he now focuses on funding the broader cryptocurrency ecosystem across infrastructure, protocols, and applications.