The Livermore Valley, historically known for the grape, is home to several wineries that produce Sauvignon Blanc. Here are a few:
3 Steves Winery
Bent Creek Winery
Charles R. Vineyard
Chouinard Vineyard & Winery
A Little on the history of the Livermore Valley Wine Country.
Unbeknownst to many, the first international, (read French) Gold Medals (read Grand Prix) awarded to a California wine were from the Livermore Valley. The event was the 1889 International Paris Exposition (about 113 years before the well known judgment at Paris) when Cresta Blanca Winery, owned by Wetmore, submitted a 'dry white wine' for the competition. The wine was composed of Sauvignon Blanc, grown on cuttings, that, ironically, originated at Château d'Yquem in southern Bordeaux. Cresta Blanca Winery was designated a California historical landmark in 1957 and is owned by the Wente family.