Produces whites and reds, including the Woodbridge and La Famiglia brands, and has joint ventures in several countries. Includes product descriptions, recipes, events, and a company overview.

Non-profit association promoting the right to freely produce, market, and sell wines. Contains information about their platform, membership, and donations. Also offers bulletin boards and links.

America's oldest winemaking family offers a wide range of reds and whites. Includes descriptions of wines, awards, a family history, a company overview, and event listings. Located in San Jose and Los Gatos.

Family-owned winery in Clarksburg, whose products include Chardonnay, Petite Sirah, Cabernet Sauvignon, and Zinfandel. Contains product, company, and winemaker profiles, along with club information.

Producing Californian wines with an Italian influence since 1924.

Dunnigan Hills subsidiary of Vincor USA, producing the Night Harvest brand. Includes product descriptions, online purchasing, and recipes.

The country's only commercial winery on a university campus. Includes product descriptions, online purchasing, and a winery overview. Proceeds support Viticulture and Enology students.

Specializes in Zinfandel, but also produces a wide range of reds and whites. Includes descriptions of current releases, an award list, and a company overview. Locations in Alameda and Healdsburg.

Produces several brands in different regions of the state, including the historic San Antonio Winery in Los Angeles. Includes product and vineyard descriptions, along with an award list.

Madera producer of port style wines.