Walker’s previous positions include communications secretary to HM Queen Elizabeth II, advisor to former Prime Minister John Major, senior roles at Reuters and British Airways, and chief executive of the British Private Equity & Venture Capital Association. He was awarded a CBE in the New Year’s Honours list 2017.
Greenbrook is a specialist communications consultancy which focuses on reputation management for investment firms. It also advises companies and individuals who face “unusual or challenging” reputational issues.
Andrew Honnor, managing partner at Greenbrook, said: “I am delighted that Simon will be joining us as an advisor. His considerable experience will be invaluable for us as we navigate these challenging times in the worlds of business and politics.”
Walker added: “Investment firms face unique challenges and the team at Greenbrook have impressed me with their ability to provide insightful, specialist advice. I am relishing this opportunity to work as an advisor to them, drawing on my own broad experience.”