Wine & Water Watch does have a list made last year. One of the problems with making lists is that certified organic and biodynamic wineries also bottle other vintages that are not which is very misleading. An example would be Porter Creek who's estate wines are certified biodynamic but other vintages not so. Common practice.
Pam Strayer, Organic Wines Uncorked is a great site to get actual vintages that are third party certified. With that said here is a list that was made last year.
ORGANIC/BIODYNAMIC WINES TO SUPPORT (third party certified)
100% Organic/biodynamic
Canihan Wines
Emtu Estate Wines
Hamel Family Wines
Horse and Plow
Kamen Estate Winery
Martorana Family Winery
Medlock Ames
Porter-Bass
Preston Farm & Winery
Russian River Vineyards
Skipstone WInery
The Gardener
Partly Organic (some of the wines are from organic vines - the vines for those wines are certified and don’t use glyphosate)
Alexander Valley Vineyards
Amapola Creek Vineyards (mostly organic)
Bartholomew Park
Benziger Family Winery
De Loach Vineyards
Hawley Family Winery
Imagery Estate
Korbin Kameron
Lasseter Family Winery (only red wines oganic)
Laurel Glen
Petroni Vineyards
Porter Creek Vineyards (estate wines only biodynamic)
Quivera Vineyards
Radio Coteau (organic but not all vines certified)
Ridge Vineyards
Stone Edge Farm & Winery
Turley Wine Cellars (organic but not all vines certified)
Truett Hurst
Wild Hog
Winery Sixteen 600
Single Vineyard Designate