Wineries and vineyards located within the defined boundaries, as well as those making wines that include grapes from the official Howell Mountain AVA, are eligible to be members of the Howell Mountain Vintners & Growers Association. The vineyards and wineries currently in the association are as follows:

Howell Mountain Appellation map
Atalon
Atlas Peak
Beatty Ranch Vineyards
Beringer
Black Sears
Bravante Vineyards
CADE
Cakebread Cellars
Cimarossa
Cornerstone Cellars

D-Cubed Cellars
Duckhorn Vineyards
Dunn Vineyards
Elsberg Family Vineyards


Haber Family
Highlands Winery
Howell at the Moon
Howell Mountain Vineyards
La Jota Vineyards
Ladera
Lail Vineyards
Lamborn Family Vineyard
Layne Family Vineyards
Neal Family Vineyards
O'Shaughnessy Winery
Outpost
Piña Cellars
Red Cap Vineyards

Retro Cellars
Robert Craig Winery
Robert Foley Vineyards
Rocky Ridge Vineyards
Rutherford Grove
St. Clement
Sieck Vineyard
Spence Vineyards
Summit Lake Vineyards
Tor Kenward
Villa Hermosa Cellars
W.S. Keyes
White Cottage Ranch


 
Robert Craig Outpost Lamborn Robert Foley Red Cap Dunn Villa Hermosa Summit Lake Retro Duckhorn O'Shaughnessy White Cottage Pina Neal Spence Lail Cimarossa Howell at the Moon Black Sears Cakebread W.S. Keys La Jota Cade Ladera