Garrett-Cox joined Alliance Trust as chief investment officer in 2007, becoming CEO on 29 August 2008. Prior to Alliance Trust PLC, Katherine served as chief investment officer and executive director of Morley Fund Management, now
Aviva Investors, and prior to that, as chief investment officer of
Aberdeen Asset Management. Garrett-Cox left the Alliance Trust in 2016. Garrett-Cox also serves as a member of the supervisory board of
Deutsche Bank AG. She served as a member of the UK Prime Minister's Business Advisory Group from 2012 to 2015 and the Scottish Business Board, chaired by the Secretary of State for Scotland during the same period. ==Personal life==