In this episode of the Membership World Podcast, Gordon Glenister is joined by Marcia Philbin, Chief Executive of the Faculty of Pharmaceutical Medicine (FPM), for a fascinating conversation about leadership, professional membership, medical innovation and the future of trusted expertise. Marcia shares her unusual career journey from research chemist at the Ministry of Defence, where she worked on explosives, rocket propellants and forensics, to becoming a senior leader in the membership sector. She explains how transferable skills, strong leadership and a clear vision helped her move rapidly into chief executive roles. The discussion explores the role of the Faculty of Pharmaceutical Medicine as the professional home for doctors working in pharmaceutical medicine, including those involved in medicines development, clinical trials, medical devices, digital health and AI. Marcia explains how FPM supports members across every stage of their career, from trainees through to fellows, and why the organisation is now reviewing its membership model to better serve students, retirees and international members. Gordon and Marcia also examine the importance of diversified revenue streams, from membership fees and training to education, conferences, examinations and commercial in-company programmes. With members in thirty-eight countries, international growth is also becoming an increasingly important part of the Faculty’s future. A major theme of the episode is trust in an AI-driven world. Marcia highlights the opportunities AI brings to medicine, but also the risks around ethics, governance, validation and public safety. Together, they discuss why membership organisations must act as trusted, authoritative spaces where professionals can find verified knowledge, safe community and guidance in a rapidly changing landscape. A compelling episode on modern leadership, innovation and why membership bodies matter more than ever.