Grenville was appointed from 1 September 2021 and also took on the role of Chair of the Audit Committee from 1 November 2021. 

Grenville is CIPFA (Chartered Institute of Public Finance and Accountancy) qualified accountant and has held Finance Director positions in health, a social enterprise and a local authority owned care organisation. He started his career in local government, before moving into the NHS and then into the Civil Service. He moved out of full-time employment 12 years ago to fulfil his ambition of developing a portfolio career working across sectors to support organisations in improving their governance and financial management arrangements for future successes and drive collaborative working and innovation. 

Grenville has had a diverse range of roles throughout his career as a Non-Executive Director, Trustee, Executive and business consultant across the public, charities / social enterprise, housing and education sectors. 

Grenville currently holds other Non-Executive Director / Trustee positions in primary care, housing and a multi-academy trust. He is also an independent member of the Audit Committee of the Greater Manchester Combined Authority, and independent chair of the Audit Committee of Oldham Council.