As Chief Executive Officer, Jason Mark leads Energy Foundation operations, program strategy development, grantmaking, and partnerships, overseeing a staff of 64 people working to advance clean energy policies throughout the country, with regional offices in Las Vegas, Chicago, Washington, D.C., Raleigh, N.C., and headquarters in San Francisco.

Prior to assuming the role of CEO, Jason served as Energy Foundation’s Senior Vice President of U.S. Programs, managing a team of policy, public engagement, and communications experts who invest in diverse organizations nationally to drive clean energy action. He joined the organization in 2007 as Director of the Transportation Program and then as Deputy Director of U.S. Programs.

Prior to joining Energy Foundation, Jason worked for the Union of Concerned Scientists, National Renewable Energy Laboratory, and the Center for Energy and Environmental Studies at Princeton University.