Central Coast
Livermore Valley, Monterey, Paso Robles, Arcadian, Avila Wine, Babcock Winery and Vineyards, Baileyana Winery, Barnwood Vineyards, Beckmen Vineyards, Bedford Thompson Winery, Black Diamond Vineyard, Blackjack Ranch, Bonaccorsi Wine Company
Lodi
Housley's Century Oak Winery, Jessie's Grove Winery, Lodi-Woodbridge Winegrape Commission, Peirano Estate Vineyards, Phillips Vineyards, The Lucas Winery, Woodbridge
North Coast
Alexander Valley, Carneros, Dry Creek Valley, Mendocino, Napa Valley, Russian River Valley, Sonoma Valley, Abbott Winery, Adler Fels Winery, Cobb Wines, Decker Wines, Edmunds St. John, Fieldbrook Winery, Fife Vineyards, Fisher Vineyards, Flowers Vineyard & Winery, Gallo of Sonoma Winery
Santa Cruz Mountains
Ahlgren Vineyard, Andersen Vineyards, Bargetto Winery, Bonny Doon Vineyard, Byington Winery, Cinnabar, Clos LaChance, Clos Tita Winery, Cooper-Garrod Estate Vineyards, Crescini Wines
Sierra Foothills
By County, Alzante Wines, Amador Foothill Winery, Black Sheep Winery, Boeger Winery, Butterfly Creek Winery & Gift Shop, C.G. Di Arie Vineyard and Winery, Cedarville Vineyard, Charles B. Mitchell Vineyards, Charles Spinetta Winery, Chateau Rodin
South Coast
Belle Marie Winery, Bernardo Winery, Callaway Coastal Winery, Churon Winery, Cilurzo Vineyard & Winery, Falkner Winery, Filsinger Winery and Vineyard, Galleano Winery, Luttgens Family Vineyards, Miramonte Winery
A. Nonini Winery
Produces a variety of reds and whites in Fresno. Features product descriptions, a company history, and online ordering.
Agajanian Vineyards, Inc.
Produces Zinfandel, Chardonnay, Merlot, and Cabernet Sauvignon in Fresno. Includes product descriptions, online ordering, and lists of services for winemakers and growers.
Almaden Vineyards
Constellation Brands subsidiary produces box and table wines in Madera. Contains product lists, a company history, and recipes.
Antelope Valley Winery
Makes a wide range of reds and whites in northern Los Angeles County. Features online ordering and private label information.
Bogle Winery
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.
Clarksburg Wine Growers Association
Contains information about this Sacramento River Delta region including lists of local wineries and grape growers.
Cribari Vineyards
Produces sacramental altar wines in Fresno. Contains a company profile and product descriptions.
Delicato Family Vineyards
Producing Californian wines with an Italian influence since 1924.
DeVineConsultants
Los Gatos custom farming and vineyard management firm specializes in home vineyards.
Engelmann Cellars
Fresno boutique winery producing Cabernet Shiraz, Sangiovese, Zinfandel and Shiraz. Also offers online purchasing.
Family Winemakers Of California
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.
Frasinetti Winery
Sacramento Valley's oldest family owned and operated winery, established in 1897. Contains information about the facility, current releases, and online ordering.
Fresno State Winery
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.
Gnekow Family Winery
Produces the Campus Oaks line of varietal wines in Collegeville. Includes detailed product descriptions and a winery profile.
Grey Fox Vineyards
Makes Barbera, Chardonnay, Merlot, Zinfandel, Syrah, and Sangiovese in Oroville. Online purchasing and a company profile.
Jeff Runquist Wines
Produces Zinfandel, Sangiovese, Barbera, and Syrah in Ripon. Includes product and vineyard descriptions, reviews, an award list, and a wine knowledge quiz.
Joseph Filippi Winery
Family winegrowers and producers in the Cucamonga Valley. Features product descriptions, online purchasing, an award list, and a winery history.
Mirassou Winery
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.
Moraga Vineyards
Produces a red and a white in the hills of Bel Air. Includes product descriptions, pictures, and a company overview.
R.H. Phillips Vineyards
Dunnigan Hills subsidiary of Phillips-Hogue, which produces the Kempton Clark, EXP, and Toasted Head brands. Includes product descriptions, online purchasing, event listings, and a glassy-winged sharpshooter game. [Flash required]
Rabbit Ridge Winery and Vineyards
Produces a wide range of reds and whites with locations in Healdsburg and Paso Robles. Features product descriptions, ordering information, a newsletter, and a company overview.
Redrock Winery & Brewery
Produces a range of reds and whites in Merced, and also brews beer. Includes product descriptions, awards, a company history, and event listings.
Riboli Family Wine Estates
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.
River Grove Winery
A small winery in the Clarksburg appellation. Produces table wines using select fruit and traditional methods.
Robert Mondavi
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.
Rosenblum Cellars
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.
Rosenthal Malibu Estate Wines
Produces Cabernet Sauvignon, Merlot, and Chardonnay in Malibu. Includes descriptions of the winery and wines, along with online ordering.
Six Hands Winery
Walnut Grove producer of Chenin Blanc and Cabernet Sauvignon.
Stringer's Orchard Wild Plum Winery
Located in Modoc county, this winery produces wines from the Pacific or Western wild plum.
The Society of Medical Friends of Wine
Society of physicians promoting scientific research and an understanding of wine's benefits. Includes articles, pictures, an event calendar, and membership information.
Turning Leaf Vineyards
Modesto producer of a range of reds and whites. Includes product information, recipes, food pairing suggestions, and an interactive aroma wheel [Flash required].