Cathryn is the Chief Executive of Ofwat, the independent economic regulator for the water and waste water sector in England and Wales.

She is responsible for ensuring that Ofwat holds a £120 billion industry to account in delivering against the expectations of customers, wider society and the environment. She has seen through the delivery of a new strategy for Ofwat, focused on a vision for the sector of trust and confidence in water and waste water services.  This involves a new model of regulation, to better help the sector deal with the challenges of the future. This model gives the sector greater flexibility, including through use of markets, but also requires it to provide information and assurance about its performance and resilience.

Cathryn is an experienced regulatory and competition economist and has worked across a number of different sectors advising on economic, regulatory and competition issues. Previously, Cathryn was Executive Director of Markets and Economics at the Office of Rail Regulation (ORR).  She was Executive Director of Markets and Economics at Ofwat between 2008 and 2011.  She also served with the Competition Commission (now Competition and Markets Authority), and worked in economic consultancy.