Wallace, who could not be reached for comment, leaves on 4 May without a new role to go to.
Ketchum Pleon London CEO Avril Lee confirmed that Wallace was leaving and said: ‘Daisy has made a huge contribution to our content and broadcast capabilities. She has helped move our content forward leaps and bounds. I’m sorry to see her go.’
Lee added that the agency is currently recruiting to fill the vacancy.
Wallace was responsible for Ketchum Pleon’s visual content creativity, production of social media campaigns and advising on broadcast strategy. She worked across the business on clients ranging from Max Factor to IBM.
She joined Ketchum Pleon in November 2010 from TVC where she was responsible for its corporate and consumer practice. While at TVC she worked on financial, public sector and arts campaigns for clients that included Virgin Atlantic, Louis Vuitton, British Gas and Visa.
Prior to joining TVC, Wallace worked in various roles as a freelance producer. During this time she worked for programmes that included BBC News, Tonight with Trevor McDonald and the ITV News.
Before her TV work Wallace worked as a PR and press assistant for the Virgin Group, working directly for Sir Richard Branson.