John Reynolds is CEO of Castle Water, an independent water retailer providing services to business customers across Scotland and England. Castle Water took over the retailing responsibilities for business customers of Thames Water and Portsmouth Water in 2017, and in 2018 was selected to provide water services through the Crown Commercial Service to a number of public sector bodies, principally in Yorkshire and the north of England. John is a former member of the Water Industry Commission for Scotland, a director and chair of the audit committee of the water market operator, MOSL, and a former Chair of the Church of England Ethical Investment Advisory Group.