Dunham Cellars was founded by Mike and Joanne Dunham in Walla Walla in the early 1990s. The first commercial vintage was a 1995 Cabernet Sauvignon. Dunham owns interests in Washington vineyards and sources grapes from several Washington appellations. Dunham is known for its Cabernet Sauvignon, but it also produces Syrah, Chardonnay, Riesling and blends. It remains a family-owned winery.