IESO Executive and Leadership Team

Jason Fitzsimmons, the President & Chief Executive Officer at IESO, directs the overarching strategic vision for the provincial power grid. Fitzsimmons manages high-level stakeholder relationships across the energy sector to ensure long-term reliability and market efficiency. By aligning corporate objectives with provincial energy policies, the President & Chief Executive Officer fosters a culture of innovation and operational excellence. This leadership role involves navigating complex regulatory environments while balancing the immediate needs of the Ontario electricity market with future sustainability goals. Jason Fitzsimmons maintains a focus on grid modernization, ensuring that infrastructure investments support the evolving demands of the province. Through rigorous oversight of organizational performance, the President & Chief Executive Officer secures the stability of the energy supply chain, ultimately driving the strategic growth and resilience of the entire organization.

Lesley Gallinger, the President & Chief Executive Officer at IESO, executes the operational mandate to optimize electricity market performance. Gallinger oversees the integration of diverse energy resources into the provincial grid, ensuring that supply meets demand with precision. The President & Chief Executive Officer drives initiatives focused on market competitiveness and the seamless transition toward cleaner energy sources. By collaborating with industry partners and government entities, the President & Chief Executive Officer shapes the regulatory framework governing the Ontario energy landscape. Lesley Gallinger prioritizes the implementation of advanced market mechanisms that enhance transparency and efficiency for all participants. This leadership role requires constant monitoring of market trends and the proactive adjustment of operational strategies to mitigate risks. Gallinger ensures that the organization remains at the forefront of energy sector advancements, consistently delivering reliable power solutions.

Ernest Chui, the Corporate Services Chief Financial Officer & Vice President at IESO, manages the financial health and administrative functions of the organization. Chui oversees the budgeting process, capital allocation, and financial reporting, ensuring that all fiscal activities align with the company's mission. The Corporate Services Chief Financial Officer & Vice President directs the procurement and facilities management teams, optimizing the use of corporate resources. By maintaining rigorous financial controls, the Corporate Services Chief Financial Officer & Vice President supports the long-term sustainability of the provincial energy operations. Ernest Chui provides the strategic financial analysis required for major infrastructure investments and market initiatives. This leadership role involves coordinating with the Board to ensure transparency and accountability in all financial dealings. Through prudent fiscal management, Chui secures the necessary funding to support the ongoing reliability and expansion of the Ontario power system.

Ken Kozlik, the Chief Operating Officer at IESO, manages the day-to-day technical operations of the provincial electricity system. Kozlik oversees the real-time balancing of the grid, ensuring that power delivery remains consistent across all regions of Ontario. The Chief Operating Officer directs the maintenance and upgrade of critical infrastructure, focusing on reliability and safety standards. By coordinating with engineering teams, the Chief Operating Officer optimizes grid performance and minimizes service disruptions. Ken Kozlik implements rigorous operational protocols that support the integration of renewable energy sources into the existing power network. This leadership role involves managing complex logistical challenges and ensuring that technical systems meet the highest industry benchmarks. Through the continuous monitoring of grid health, Kozlik maintains the integrity of the energy supply, providing the foundation for a stable and efficient provincial power market.

Achint Behar, the Chief Information Officer I, Ts Governance, Office at IESO, architects the governance frameworks for all internal technology systems. Behar oversees the implementation of robust data management policies, ensuring that information security remains a top priority for the organization. The Chief Information Officer I, Ts Governance, Office directs the alignment of IT infrastructure with corporate compliance requirements, mitigating risks associated with digital operations. By establishing clear governance standards, the Chief Information Officer I, Ts Governance, Office facilitates the secure exchange of data across the energy network. Achint Behar manages the oversight of technology assets, ensuring that all digital tools support the operational goals of the company. This leadership role involves constant evaluation of cybersecurity threats and the proactive development of defensive strategies, ultimately protecting the critical information systems that underpin the provincial energy grid.

Alex Foord, the Executive Vice President & Chief Information Officer at IESO, drives the digital transformation strategy for the entire organization. Foord oversees the deployment of advanced software solutions that enhance grid monitoring and market analysis capabilities. The Executive Vice President & Chief Information Officer directs the modernization of IT platforms, ensuring that the company leverages data-driven insights to improve operational efficiency. By fostering innovation within the technology department, the Executive Vice President & Chief Information Officer supports the integration of smart grid technologies across Ontario. Alex Foord manages large-scale digital projects that streamline internal processes and improve communication between departments. This leadership role involves aligning technological investments with the long-term strategic objectives of the company, ensuring that the organization remains agile in a rapidly evolving energy sector. Foord secures the technological foundation necessary for future growth.