I am doing research for several books on organically grown wines and today called the Washington State Wine Commission for information on Washington wineries producing organically grown wines. Here's the list they had:
1. Badger Mountain
2. China Bend
3. Columbia Gorge Winery
5. Naked Wines/Snoqualmie
6. Pacific Rim
As for Biodynamic, the Washington list included:
The Demeter site lists Cayuse and several vineyards including Walla Walla and Wilridge.
Do any of you Washington wine mavens know of any more I should be contacting?