Adi Sideman, Angel Investor

Adi Sideman is a pioneer in participatory media with over 20 years of experience building user‑generated video platforms. He founded YouNow in 2011, growing it into a global social network with more than 40 million users and 120 million monthly sessions, earning recognition as a TechCrunch Fastest Rising Startup finalist. Earlier, Adi founded Oddcast (creator of “Elf Yourself”), co‑founded KSolo (acquired by Fox/MySpace), and co-founded TargetSpot (acquired by Radionomy). He also developed animated ads for AOL and produced 30+ online games for major studios, including Warner Bros.’ Matrix franchise. As an angel investor, Adi has backed ventures in retail and technology. His recent investment in Doji (seed round, $14M) reflects his interest in startups driving innovation in digital platforms.