This 2010 review by Waterwise provides a synopsis of water efficiency actions taken by water companies and key organisations around the UK. It first gives an overview about water efficiency activity before summarising actions each of the water companies is are currently pursuing. The second section goes into further detail for each individual water company, and focuses on specific areas where they have excelled. The third and final section looks into the future, e.g. examining what projects will be carried out by the UK water industry. All water companies in the UK are mentioned in this report except Cholderton and District Water.