Sara Beykpour

Sara Beykpour is the co-founder and CEO of Particle, an AI-powered news app that summarizes the day's stories and shows readers how coverage differs across the political spectrum. She spent more than a decade at Twitter shaping products like Vine, Periscope, and Twitter Blue before leaving in 2022 to build Particle with former Twitter engineer Marcel Molina. The company launched publicly in November 2024 and has raised roughly $15.3 million, including a $10.9M Series A led by Lightspeed.