Donna Jefferies provides scientific and technical expertise on water for Unilever’s Sustainable Living Plan. Based in Unilever’s Corporate Safety and Environmental Assurance Centre, a key part of Donna's role is to assist in the development and deployment of sustainability thinking within the business, covering such areas as the supply chain, product development and marketing. 

Donna is particularly involved in Corporate Water Accounting. She represents Unilever in the Water Footprint Network, is the UK expert for development of the ISO standard on Water Footprint, and participates in the WBCSD water leadership team. Donna joined Unilever 15 years ago and had a number of roles within R&D before joining SEAC.