In 2000, Stephenson wrote a four-star (silver) award-winning IPA Effectiveness case paper for Lever's Surf. She was also the agency's head of training. Previously, she worked at both Bartle Bogle Hegarty and McCann Erickson.
Mustoes has appointed Judy Stephenson to the position of group account director. She joins from Lowe, where she was a business director running global communications for the Unilever brands Flora and Flora pro activ. She also worked on accounts such as Domestos, Cif and Parcelforce.