 He is a member of the British Bankers Association Business Finance Taskforce (part of Project Merlin).Hewitt is currently; the non-executive chairman of ProVen Planned Exit VCT PLC; a non-executive director of Puma VII VCT PLC; both listed on the Official List of the London Stock Exchange; a director of London Asia Capital PLC; a member of the Industry Advisory Group of the Associate Parliamentary Group on Wholesale Financial Markets Financial Services and Services and an advisor to the Financial Services Organisation of UKTI.He was a part of the London policy unit for Ireland's Fine Gael party prior to their election in 2011.