Greenbrook appoints Lord Hill and David Trenchard as Advisors PR Newswire LONDON, Oct. 16, 2024 LONDON , Oct. 16, 2024 /PRNewswire/ -- Greenbrook, the specialist communications advisor, is pleased to announce the appointment of former European Commissioner and Lead non-exec director at HM Treasury, Lord Hill, and the return of the City advisor, David Trenchard , as advisors to the firm. Lord Hill is the former European Commissioner for Financial Stability, Financial Services and Capital Markets...