Our leadership
Mark Fiedeldey
Chief of Staff
Mark is the Chief of Staff at Oak National Academy, leading executive operations and strategic work in coordination with John Roberts, driving goals and managing initiatives thoughtfully while working to close the education gap in the UK.
He brings 16 years of experience in strategic operations, governance, and stakeholder management across charities and advocacy organisations in the United States and UK.
Mark has supported senior leaders and boards through strategic planning, donor relations, and high-profile programmes. His career has spanned labour rights, girls’ advocacy, securing marriage equality in the United States and internationally, and a NYC-based community foundation.