


Marion Puig
Marion joined Capstone in 2022 and oversees the day-to-day operations of the London office. Prior to joining Capstone, Marion worked as an Administrator in education. She received a B.A. in history from the University of Toulouse Jean Jaurès. Originally from France,...
Drew Monroe
Drew joined Capstone in 2023 as an Analyst on the Energy team. He deals with policies and regulatory issues surrounding renewable natural gas, hydrogen fuel, the Renewable Fuel Standard program, carbon capture and storage, and natural gas liquids. Prior to joining...
Zak Binshaieg
Zak joined Capstone in 2022 and is the Executive Assistant to David Barrosse, Capstone’s Founder and CEO. In this role, Zak leverages his experience from working in the nonprofit sector as an Executive Assistant and in the US Senate as a Legislative...