William G. Demas is a Senior Managing Director & Head of Americas, Green Investments for Macquarie Asset Management, a global asset manager, integrated across public and private markets, managing a diverse range of investment solutions including real assets, real estate, credit and equities & multi-asset.
William re-joined Macquarie in 2022 from Stonepeak Partners, where he helped lead the firm’s energy transition and renewable energy investment activities. Prior to Stonepeak, he led the establishment of the Americas business for Copenhagen Infrastructure Partners.
Prior to CIP, William was a senior member of Macquarie Capital’s renewable energy principal investment and advisory team and spent the early part of his career at Good Energies, one of the first dedicated clean technology venture funds. He began his career at Lazard.
William is a Board Director for the American Council on Renewable Energy (ACORE) and the Coalition for Green Capital (CGC), amongst many other companies operating within the energy transition sector, including Treaty Oak Clean Energy, Atlas Agro, Galway Sustainable Capital and Calibrant Energy.
William graduated from Harvard University with a Bachelor’s degree in Economics.
