Dr Sarah McMath


Dr 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 at Thames Water.

Sarah was previously Managing Director of Water at Thames Water, before becoming Managing Director of Strategic Planning and Investment in April 2018. Sarah started her career at Thames in the innovation team, working as a research scientist, where she completed her doctorate in Environmental Engineering. Here, she headed up the Water Quality team, before taking on several operational and technical roles and from 2008, led the Asset Management teams.

In 2011, Sarah 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. She is an advocate for innovation in the utilities sector and has been the driving force behind many large investment projects.

Sarah joined MOSL as Chief Executive in June 2019. In this role, she continues to focus on driving innovation and collaboration to ensure the open market delivers on its commitments to customers and tackles some of the biggest challenges facing the wider water industry.

Sarah is a trustee of the Don McMath Foundation, a charity which provides free schooling to children in the Gambia and also sits on the Board of Trustees for the National Oceanography Centre.

Dr Sarah McMath

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