Gina Gallo, Winemaker, Gallo of Sonoma. Gina and Matt Gallo have been prominent in Sonoma County as the principal's for Gallo Sonoma operations in the Dry Creek and Alexander Valley. While Matt manages the vineyard operations, Gina is the Winemaker of Gallo Sonoma. Gina travels extensively promoting the Gallo premium wines and is an excellent ambassador for the Gallo operation.