San Antonio Winery, founded by the Riboli Family, is a Southern California winery with over 100 years of history across four generations, crafting world-class wines from estate vineyards in Paso Robles, Napa Valley, and Monterey. They feature tasting rooms, Maddalena Restaurants, and event spaces in Los Angeles, Ontario, and Paso Robles, with brands including Maddalena, San Simeon, Highlands 41, Opaque, and Stella Rosa. Awarded American Winery of the Year by Wine Enthusiast Magazine, they emphasize family passion and direct-from-vineyard bottling.

Estate wines from Paso Robles, Napa Valley, Monterey vineyards Riboli Family four generations winemaking Artisan Premier Club with limited production wines California White wines Sweet Wine Club
Winery hero image Los Angeles location Ontario location Paso Robles location Riboli Family Winemaking & Events Center Riboli family photo
Maddalena Wines
Flagship brand
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San Simeon Wines
Artisan range
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Highlands 41 Wines
Brand offering
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Opaque Wines
Brand featuring Calc-Rock
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Stella Rosa
Brand listed
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California White Wines
Selection of white wines
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Gold Medal, San Francisco Chronicle Wine Competition 2022 2022
Silver Medal, California State Fair 2021 2021
Holiday Parties
available now, limited availability
Event spaces for holiday parties at Los Angeles, Ontario, Paso Robles
Hosted Wine Tasting
book now
Available at Paso Robles, Los Angeles, Ontario locations
Private Events
ongoing
Private event facilities at all locations
Special Events
ongoing
Special events at Los Angeles, Ontario, Paso Robles

Awarded American Winery of the Year by Wine Enthusiast Magazine; Holiday event spaces available now.