The review of all past and current SEB analysis performed for this publication indicates that properly planned investments in hydrometeorological services provide significant benefits relative to their costs. While the publication attempts to capture the currently available wealth of experience and expertise across different contexts, it is not the end point for developing global knowledge on SEB analysis of hydrometeorological studies. Indeed, as we move to implement new global commitments on sustainable development goals, climate change adaptation and disaster risk reduction, interest in knowledge, expertise and implementation of SEB studies for hydrometeorological services will continue to grow.