Chateau Ste. Michelle

Washington's oldest and largest winery (founded 1934 as Pommerelle, re-established 1967 as Ste. Michelle). Produces across all price points; flagship Columbia Valley Riesling and Eroica (with Ernst Loosen) are internationally benchmarked. The winery's scale funds significant viticultural research.

Washington's foundation producer and largest employer in the wine industry; Eroica Riesling is among America's most important white wine collaborations.