The day-to day operations of The Regional Municipality of York are overseen by this team of senior executives, led by Chief Administrative Officer (CAO) – Bruce Macgregor:

• Commissioner, Finance and Regional Treasurer – Laura Mirabella
• Commissioner, Community and Health Services – Katherine Chislett
• Commissioner, Corporate Services – Dino Basso
• Commissioner, Environmental Services – Erin Mahoney
• Commissioner, Transportation Services – Paul Jankowski
• Regional Solicitor, Legal and Court Services – Vacant
• Medical Officer of Health – Dr. Karim Kurji
• Chief Planner, Planning and Economic Development – Paul Freeman
• Executive Director, Human Resource Services – Sharon Kennedy
• Executive Director, Strategies and Initiatives – David Rennie