Appointed as Chief Legal Officer in 2020, Justine oversees National Grid’s global legal, risk, compliance and sustainability functions, covering all businesses across the UK and US. She is also responsible for the effective operation of National Grid’s boards and committees and for advising on issues of corporate governance.

Justine has held senior executive positions with responsibility for legal, regulatory, compliance and public affairs matters at several international companies.

Her most recent position was as Group General Counsel & Company Secretary at Centrica plc. Previous roles include General Counsel & External Affairs Director at Vodafone UK and European General Counsel of Telefónica (O2).

Justine holds an LLB (Hons) degree from Trinity College Dublin and qualified as a solicitor with Freshfields, spending a number of years working in its London and Brussels offices. Her external appointments include Vice Chair of the GC100 Group of Corporate Secretaries and General Counsels of the FTSE 100 and Fellow of the Energy Institute.