August 3, 2020 Guest User Producer profiles, Wine A winery with its heart in the right place. Ehlers, the only non for profit winery in Napa. August 3, 2020 Guest User Producer profiles, Wine Ehlers Estate is a nonprofit winery and is the only one of its kind in the Napa Valley. The late owners Jean and Sylviane Leducq established the Leducq foundation, The foundation awarded its first grants in cardiovascular research.