Sineann was founded in Newberg in 1994 by Peter Rosback and David O’Reilly. From the beginning the business partners sourced grapes from some of the best vineyards of the Pacific Northwest, including vineyards Columbia Valley and the Willamette Valley. O’Reilly went on to start the Owen Roe and Rosback focused on single-vineyard Zinfandel, Pinot Noir, Cabernet Sauvignon and Merlot. He also makes white wines including Pinot Gris, Sauvignon Blanc and Gewurztraminer. The red and white wines both typically earn ratings in the low- to mid-90s from reviewers.