Also testifying to get Bill 1581 passed was the Wine Institute, who represents the Wine Industry in California. One of the supporters of this bill is the Sonoma Land Trust which include the Rodney Strong Vineyard, Gundlach Bundschu Winery, Freeman Vineyard and Winery, Rochioli Vineyards and Winery, Iron Horse Vineyards, Rodney Strong Vineyards, Flowers Vineyards and Winery, Auteur Wines, Unit Vineyards, B.R. Cohn Winery, St. Francis Winery and Vineyards, Gloria Ferrer Wines, Martinelli Vineyards and Winery, Sonoma-Cutrer Vineyards and West Sonoma Coast Vineyards just to name a few.