Bart de Witte is the founder of Isaree, a venture built on open-source and decentralized principles that pioneers on-device, EU compliant AI agents for healthcare, empowering clinicians to build, own, and run personalized AI directly on their phones with zero marginal scaling cost. Recognized as one of the first voices globally to champion open-source AI in medicine, Bart established structural frameworks to accelerate open-source AI development in healthcare long before open-source LLMs became mainstream. Previously, he founded the HIPPO AI Foundation, a non-profit dedicated to democratizing medical knowledge and ensuring AI-based healthcare becomes open-sourced. Bart previously served as part of IBM global healthcare & life science team, as Public & Healthcare Industry lead for Central & Eastern Europe at IBM, advising governments and organizations on technology policy and the socio-economic impacts of healthcare innovation. He collaborates regularly with the World Health Organization and the United Nations, and was a member of the Walther Siegenthaler Gesellschaft and the German Academy of Science and Engineering (acatech). His work on AI applications addressing the UN Sustainable Development Goals has earned multiple awards. He shares insights on digital health and AI through the Isaree company blog (blog.isaree.ai) and his personal newsletter (blog.hippoai.org).