Nate Weis

Nate Weis is an accomplished winemaking professional currently serving as the GM/Senior Winemaker at Treasury Wine Estates since March 2025. Weis also contributes as an Adjunct Faculty member in Viticulture & Winery Technology at Napa Valley College since August 2018. Prior to this, Weis held the position of Vice President of Winegrowing - Production/Operations at Silver Oak Cellars & Twomey Cellars from May 2014 to March 2025, playing a key role in strategic and operational leadership across a diverse winery portfolio. Earlier experience includes serving as Winemaker at Antica Napa Valley and Assistant Winemaker at Patz & Hall Wine Co, Inc. Weis holds an MBA in Wine Business from Sonoma State University and a Master’s degree in Viticulture & Enology from the University of California, Davis.