Home / USGC Global Presence / U.S. Headquarters OfficeU.S. Headquarters Office Executive Team Ryan LeGrand President and CEO Cary Sifferath Vice President Cierra Walker Executive AssistantEthanol and Economics Mackenzie Boubin Director of Global Ethanol Export Development Ankit Chandra Senior Manager of Global Ethanol Export Development Joana Hassan Manager of Global Ethanol Programs Linda Schmid Manager of Ethanol Policy and Sustainability Stephanie Larson Regional Ethanol Manager for the EU, UK and Canada Lauren Sura Global Ethanol Programs CoordinatorGlobal 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 Senior Global Strategies CoordinatorGlobal Programs Stella Qian Director of Global Programs Administration Lucas Rudy Manager of Global Programs Samantha Redfern Manager of Global Programs Shuda Jarboe Global Programs CoordinatorTrade Policy and Biotechnology Andrew Brandt Director of Trade Policy Carlos Suárez Director of Global Sustainability Dylan Biggs Trade Policy CoordinatorCommunications Bryan Jernigan Director of Communications Will Margerum Manager of Communications Emma Dostal Communications CoordinatorIndustry Relations Ellen Zimmerman Director of Industry Relations Teresa Myers Senior Meetings Manager Emma Freebairn Manager of Industry Relations Administration Rebecca Starrett Manager of Industry Relations Emily Schneider Industry Relations CoordinatorFinance Addis Tilahun Director of Finance Hiwot Arnold Manager of Domestic Accounting Donna Braswell Senior Manager of Overseas Accounting Mevis Clarck Accounts Payable Manager Milla Par Manager of International Accounting Tatiana Ciobanu Manager of Program Funding Burhan Chaudhry Accounting CoordinatorAdministration Helen Elmore Director of Administration and Operations Yeshake "Isaac" Assefa IT Manager
