Chronic water scarcity, hydrological uncertainty, and extreme weather events (floods and droughts) are perceived as some of the biggest threats to global prosperity and stability. With water intersecting with all sections of society and industry, water security is therefore a major challenge for both governments and organisations. Environment and sustainability professionals play a key in resolving this crisis by supporting the application of circular economy principles to water management. Through its guidance, member workshops and webinars, IEMA is actively supporting the creation of institutional tools (i.e. legal and regulatory frameworks, water pricing, and incentives), technologies and information systems that will help environment and sustainability professional to better allocate, monitor and conserve water resources, creating additional value for organisations by application of circular economy principles.