Stakeholder engagement and knowledge transfer ensures that AQUACROSS is framed in terms of policy, stakeholder, and business needs and also communicates project results. This topic area provides guidance on stakeholder engagement to the case study owners, builds an interactive platform for discussion, advice and consultation on main questions relevant for AQUACROSS research with a high-level Science-Policy-Business Think Tank (SPBTT), and communicates and disseminates AQUACROSS findings and outputs to identified target audiences.