Dan Siroker, Angel Investor

Dan Siroker is a Co‑Founder and CEO of Limitless, an AI company building tools to augment human intelligence with perfect memory. Powered by the Limitless Pendant—the leading AI wearable—Limitless captures what users see, say, and hear to provide personalized context. He also founded the Mind Emulation Foundation, advancing research toward human mind emulation. Previously, Dan co‑founded Optimizely, which he scaled to $120M in annual recurring revenue and 450 employees before selling for $300M. He also served as Director of Analytics for Obama for America, where his team raised over $400M in grassroots donations, and held product management roles at Google. As an angel investor, Dan has backed startups in AI, SaaS, and developer tools. His portfolio includes Voicepanel, Milk Video, Haystack, and MindPortal, reflecting his focus on companies that push the boundaries of human‑AI collaboration and digital productivity.