Greg is the co-founder and CEO of OpenCoreEMR, launched in June 2025 with Open Core Ventures to commercialize OpenEMR, the world’s most widely used open-source electronic health records platform. Previously, he was co-founder and CEO of Glow Energy, acquired by Ivy Energy in 2024. Earlier, Greg co-founded a proptech startup that led to his role at Airbnb, where he helped reaccelerate host growth and later served as Head of Home Experience, Luxe.