E & J Gallo Winery is a winery and distributor headquartered in Modesto, California. It was founded in 1933 by Ernest Gallo and Julio Gallo, and is the largest exporter of California wines.E & J Gallo Winery is the largest family-owned winery in the United States.Viticulturists at Gallo use their vineyard resources to trial new grape variety plantings in California wine regions in an effort to see which varieties grow best in various climates and soil types. One of the varieties that Gallo has been trialling in the San Joaquin Valley is the French wine grape Ederena.E & J Gallo Winery was named the "Bon Appetit Winery of the Year" in the 1996, 1998, and 2001 San Francisco International Wine Competitions.Intangible Business, a brand valuation firm,rated Gallo as the world's "Most Powerful Wine Brand" in 2006,2007,2008,and 2009.