David HorncastleDavid Horncastle is a Non-Executive Director for the Security Industry Authority (SIA) and Chair of the Audit and Risk Committee (ARAC). He is also the Charity Trustee and Chair for WellFound, a water and sanitation charity working in Guinea-Bissau and Sierra Leone. He is a highly accomplished senior manager with over 38 years’ experience who has worked at board level in a variety of executive and non-executive roles.