Lyndsey Merrill Feinberg is a nonresident senior fellow for regional integration at the Atlantic Council’s Middle East programs and a nonresident senior fellow with the Global Energy Center. She also serves as the managing director and head of global business development at Engine No.1, an investment firm that builds and invests in companies that are powering innovation and reindustrializing the United States.  

Prior to joining Engine No. 1, Merrill Feinberg served nearly fifteen years in the US government, most recently as special assistant to the president and senior director for energy and investment at the White House, where she also led strategic Middle East initiatives. Her portfolio included the president’s signature Group of Seven initiative, the Partnership for Global Infrastructure and Investment, which comprised four strategic geographies (including the Lobito Corridor) and prioritized collaboration on power, technology, supply chains, AI infrastructure, and the clean energy transition. Her portfolio also included the maritime deal between Israel and Lebanon in October 2022 and the ceasefire in November 2024, as well as normalization between Israel and Saudi Arabia. She led the negotiations to establish the India-Middle East Europe Economic Corridor, the formation of the US-Saudi Clean Energy Framework, and the negotiations for the US-UAE Partnership for Accelerating Clean Energy. She also served at the White House as the director for transnational affairs and regional security for the Middle East and North Africa Directorate at the National Security Council. 

Merrill Feinberg holds a BA in government and international politics from George Mason University and an MA in international relations from Webster University. She lives with her husband and son in Alexandria, Virginia.