CLOSER, the home of longitudinal research, is the interdisciplinary partnership of leading social and biomedical longitudinal population studies, the UK Data Service and The British Library.

Our mission is to increase the visibility, use and impact of longitudinal population studies, data and research to ensure that longitudinal evidence is used to address the health, social, economic and environmental challenges facing the UK, now and in the future.

Our work focuses primarily on four areas: data discoverability, policy and dialogue, training and capacity building, and legacy.