Napa Wine Company Napa Wine Company Napa Wine Company is a family owned winery with over 635 acres of vineyards in the Yountville and Oakville appellations. All are now 100% organically certified and have been responsibly farmed for over 100 consecutive harvests here in Oakville, the heart of the Napa Valley. Unlike many other wineries we excel in five business areas that include: Custom Crush, Grape Sourcing, Bonded Winery Number 9, Alternating Proprietorships and Garagiste.