Preston has been active within the voluntary sector for over 30 years serving for nine and a half years as a General Manager with one of the largest national charities (Scope).
Preston has been a Member of ACEVO (The Association of Chief Executives of Voluntary Organisations) since 1994. Chief Executive of The Respite Association a registered charity supporting Carers across the United Kingdom since 2001
and Chair of The Lincolnshire Neurological Alliance (a registered charity).
He is a Board Director of Healthwatch Lincolnshire and previously served as a Non-Executive Director on East Lincolnshire NHS Primary Care Trust and as Public Design Champion serving on the Project Board for the Johnson Community Hospital, Spalding.