Sarah McMath

Sarah has vast experience of the water industry, having worked in a variety of roles across a number of technical, asset management and operational teams over the past 30 years and most recently as Chief Executive of MOSL, the market operator for the business retail market in England and Wales.

Sarah started her career at Thames Water in the innovation team, working as a research scientist, where she completed her doctorate in Environmental Engineering. In 2011, she moved to the Strategy and Regulation team, leading the preparation and submission of Thames Water’s business plans for PR14 and held the responsibility of Programme Director for Competition 2017 ahead of the opening of the water retail market on 1 April. Sarah was previously Managing Director of Water at Thames, before becoming Managing Director of Strategic Planning and Investment in April 2018. She joined MOSL as CEO in June 2019.

Outside of MOSL, Sarah sits on the Board of the Women’s Utilities Network and Stonbury Limited. She is Chair of the Water Efficiency Strategy Steering Group, the President of the Institute of Water, sits on the Advisory Board of Ofwat’s Water Efficiency Lab and Water Efficiency Campaign and is a member of the National Drought Group.

Sarah is also a trustee of the Don McMath Foundation, a charity which provides free schooling to children in the Gambia.