Demetra Mallios is the Founder and CEO of Puberry, a B2B SaaS company providing gamified and medically verified, AI-powered health curriculum for K-12—think Duolingo for health. She’s a first-generation Greek-American and an ex-pro soccer player-turned-entrepreneur with more than 15 years of experience in analytics, startups, and leadership. At 23 years-old, she led the global Adidas analytics team to define their five-year global women’s strategy at their HQ in Germany and the Netherlands. She also worked for mission-driven FemTech and HealthTech startups like Ellevest and Bundle Organics, and even created her own HealthTech community platform during undergrad.

Demetra began researching, prototyping, and finding product-market fit for Puberry while studying at Columbia University’s MS in Business Analytics program, combining both the Columbia Engineering and MBA programs. After conducting a year of extensive research, creating several small-scale iterations, and receiving organic demand to enter school pilots, she immediately began working on Puberry full-time after graduating in December 2022. With just $40K in grants, Demetra built Puberry, securing 14 national partners (including Aunt Flow and Counseling in Schools NYC), four school pilots, and two paid school programs—earning more than 4x the average EdTech rate. Puberry is the first and only holistic health education curriculum with three interfaces supporting its key stakeholders; students, parents, and teachers. Puberry is now officially an NYC Department of Education Vendor.