This report captures the key discussions, insights, and messages from Building Bridges: Shaping Europe’s Science-for-Policy Landscape, a two-day international conference held in Vienna on 26–27 May 2025. Organised by SAPEA on behalf of the European Commission’s Scientific Advice Mechanism and hosted by the Austrian Academy of Sciences, the event brought together scientists, policymakers, advisors, communicators, and representatives from civil society and European institutions. The report provides a detailed overview of the sessions, debates, and exchanges that took place, from high-level plenaries and interactive debates to parallel sessions, workshops, and side events. It is designed to share the lessons learned, highlight best practices, and inspire further dialogue on how to build a stronger, more inclusive, and resilient science-for-policy ecosystem in Europe. Whether you attended the event or are exploring its outcomes for the first time, this report offers a valuable resource for anyone interested in strengthening the role of evidence in policymaking.