Douglas Stidolph

Douglas Stidolph is the Founder and Business Director at Concept80 and a startup advisor based in London, England, United Kingdom. He previously served as the Co-Founder, Chief Marketing Officer, and Chief Operating Officer at Quell, a fitness gaming startup that participated in the Y Combinator Summer 2020 cohort. Before his executive tenure at Quell, Stidolph worked at Red Bull and gained operational experience across the financial technology, sports retail, and consumer marketplace sectors. Between 2016 and 2020, he organized and hosted specialized remote work and adventure retreats for startup founders and corporate leadership teams. He also serves as an active startup advisor for student and alumni entrepreneurial programs at University College London. His current focus centers on guiding early-stage ventures through business development, marketing strategy, and operational scaling within the gaming, fitness, and professional services industries.