An Exclusive Winery Membership
Keepers of the Key is Theorem Vineyards' private membership, an invitation into the estate, our allocated wines, and the Theorem Collection.
The Wines — Estate-Grown, Mountain-Made, Limited by Nature
At the heart of Keepers of the Key membership are the wines themselves. Members receive exclusive access to Theorem's limited releases — single-vineyard, single-varietal estate wines grown in the volcanic soils of Diamond Mountain in Napa Valley and Moon Mountain in Sonoma County. These are mountain wines of exceptional character: concentrated, mineral, and shaped by elevation, microclimate, and the restraint of a winemaker who lets place speak first. Many of these allocated wines never reach the public. For Keepers, they arrive first.
Private Culinary Hospitality
Theorem's estate hospitality is guided by our chef whose philosophy, like the wines, is rooted in place. Keepers of the Key enjoy first access to the estate's private hospitality experiences and the tasting space of their choice across our historic grounds. That access extends to exclusive winery lunches and culinary events held within its most intimate settings — afternoons on Diamond Mountain that elevate a day in Napa Valley into something entirely its own. These are not experiences open to the public. They are crafted for the few.
Our members dream it. We make it happen.
Keepers of the Key is not a membership you apply for. It is one you arrive at — through a shared passion for Theorem's wines, its land, and the way of life it represents. Your journey begins with a visit. In the meantime, join our mailing list.
Are You Already a Member?
An aerial view of Theorem Vineyards' hillside estate, with intimate shots of a hummingbird among lavender, blooming flowers, and vines, followed by wine being poured and aging in oak barrels.
Beyond the Vines, a Story Unfolds
Join us where time slows, and truth is poured. Experience our Diamond Mountain estate in Calistoga, Napa Valley.