Home / USGC Global Presence / U.S. Headquarters Office U.S. Headquarters Office Executive Team Ryan LeGrand President and CEO Cary Sifferath Vice President Courtney Coe Executive Assistant Ethanol and Economics Mackenzie Boubin Director of Global Ethanol Export Development Stella Qian Senior Manager of Global Ethanol Market Development Isabelle Ausdal Manager of Global Ethanol Policy and Economics Joana Hassan Manager of Global Ethanol Programs Cierra Walker Global Ethanol Programs Coordinator Global Strategies Kurt Shultz Senior Director of Global Strategies Sadie Marks Manager of Global Strategies and Trade Alexander Grabois Manager of Global Strategies and Trade Jace Hefner Manager of Global Trade Sam Clemence Global Strategies Coordinator Global Programs Sierra Richey Manager of Global Programs Caleb Floss Manager of Global Programs Lucas Rudy Global Programs Coordinator Trade Policy and Biotechnology Andrew Brandt Director of Trade Policy Carlos Suarez Manager of Sustainability, Policy and Innovation Dylan Biggs Trade Policy Coordinator Communications Bryan Jernigan Director of Communications Emily Sutton Manager of Communications Will Margerum Communications Coordinator Industry Relations Ellen Zimmerman Director of Industry Relations Teresa Myers Meetings Manager Emily Schneider Industry Relations Coordinator Finance Addis Tilahun Director of Finance Hiwot Asfaw Manager of Domestic Accounting Donna Braswell Manager of Overseas Accounting Mevis Clarck Accounts Payable Manager Milla Par Manager of Program Funding Tatiana Ciobanu Accounting Coordinator Administration Helen Elmore Director of Administration and Operations Yeshake "Isaac" Belete IT Manager
