The IESO is governed by an independent board of directors that oversees its business and affairs. The IESO Board also approves the Market Rules, policies and guidelines that govern the IESO-administered markets. There are three committees of the board: Audit Committee, Human Resources and Governance Committee, and Markets Committee.
![William Sheffield profile headshot](https://ieso.ca/-/media/Images/Board-of-Directors/William-Sheffield.jpg?la=en&h=150&w=150&hash=FDC4A2001F92937C6A9B4C8E082FE2FB)