Alex Song is the Founder & CEO of Proxima, a data-intelligence platform that transforms billions of annual social commerce transactions from more than 50 million verified shoppers into actionable marketing insight. By harnessing this proprietary transaction signal, Proxima unlocks category-leading audience targeting and predictive purchase measurement across Meta, TikTok, Google, CTV, The Trade Desk, and the wider programmatic landscape.
Before launching Proxima, Song built his analytical foundation at Goldman Sachs, rotating through investment banking and private equity, and later sharpened his investor’s eye at Bill Ackman’s Pershing Square Capital Management. A serial entrepreneur for nearly a decade, he has repeatedly translated data and AI breakthroughs into market-shifting digital businesses.
Song graduated with highest honors from UC Berkeley’s Haas School of Business and is passionate about data-driven growth, AI, and the future of customer acquisition.