This factsheet provides an overview of RESAVER, the pan-European pension fund designed specifically for research organisations and their employees. RESAVER addresses a key challenge for mobile researchers in Europe: the difficulty of maintaining continuous pension contributions when moving between countries. Supported by the European Commission, RESAVER enables employees to remain affiliated with the same supplementary pension scheme throughout their careers, regardless of cross-border mobility within the European Economic Area (EEA). With participation open to all staff in research-performing organisations, RESAVER contributes to making research careers more attractive and sustainable by ensuring long-term pension security. The factsheet outlines the main features of RESAVER, including its structure, governance, and benefits for both employers and employees, and highlights its growing coverage across Europe.