Blackwood Canyon
- Produces a range of red, white, and late harvest wines in Benton City. Includes product descriptions, prices, and the company philosophy.
- http://www.blackwoodwine.com/

Seth Ryan Winery
- A small boutique winery at the foot of Red Mountain in Benton City. Includes information about the tasting room, location, and events.
- http://www.sethryan.com/

Hyatt Vineyards Winery
- This Zillah winery produces reds, whites and sweet late-harvest wines. Provides an award list, ordering information, and tasting notes.
- http://www.hyattvineyards.com/

Willow Crest Winery
- Produces a range of red, white, rose, sparkling, and fortified wines in Prosser. Features online ordering, along with information on the products, winemaker, vineyard, and company.
- http://www.willowcrestwinery.com/

Oakwood Cellars
- Produces a range of reds and whites in Benton City. Features product details, ordering, and event listings.
- http://www.oakwoodcellars.com/

Piety Flats Winery
- Produces red and white wines, as well as icewine in Wapato's historic Donald Fruit and Mercantile building. Includes a product list, history, winemaker profile, and company overview.
- http://www.pietyflatswinery.com/

Paradisos del Sol
- Produces red, white, rose, and dessert wines in Sunnyside. Includes product descriptions, ordering information, recipes, a wine region map, and a letter from the owner.
- http://www.paradisosdelsol.com/

Sagelands Vineyard
- Produces Merlot and Cabernet Sauvignon in Wapato. Includes product and vineyard descriptions, a company overview, and a winemaker profile. Part of the Chalone Wine Group. [Flash required]
- http://www.sagelandsvineyard.com/

Paul Thomas Winery
- Constellation Brands subsidiary producing a wide range of red, white, and fruit wines. Contains winemaker's notes, vineyard descriptions, reviews, and awards.
- http://www.paulthomaswinery.com/

Canon De Sol Winery & Vineyard
- Produces Syrah and Merlot. Product descriptions and online ordering.
- http://www.canondesol.com/

Pheasant Canyon Vineyards
- Producers of small quantities of red wines in Zillah. Features product descriptions, online purchasing, vineyard information, and a winemaker profile.
- http://www.crsandidgewines.com/

Covey Run
- Produces a wide range of reds and whites in Zillah. Features descriptions of past and current releases, reviews, vineyard and appellation descriptions, and a company history.
- http://www.coveyrun.com/

Yakima River Winery
- Husband and wife team, John and Louise Rauner, specialize red wines and port. Contains technical data and descriptions of wines, an award list, and a profile of the owners. Located in Prosser.
- http://www.yakimariverwinery.com/

WineGlass Cellars
- Zillah winery focuses on Cabernet Sauvignon, Merlot, Chardonnay, and Zinfandel. Lists wines, reviews, and events.
- http://www.wineglasscellars.com/

Tucker Cellars
- One of the state's oldest grape-growing families. Includes product descriptions, event listings, and a winery history. Located in Sunnyside.
- http://www.tuckercellars.com/

Tefft Cellars Winery and Guest House
- Produces a wide variety of red and white wines in Outlook, and offers lodging. Includes product descriptions, online purchasing, an event list, and a winery profile.
- http://www.tefftcellars.com/

Portteus Vineyards
- Family-run winery in Zillah, whose products include Zinfandel, Merlot, Cabernet, and Chardonnay. Contains product descriptions, downloadable order form and newsletter, and pictures of the crush.
- http://www.portteus.com/

Kestrel Wines
- Established in 1999 in Prosser, this small winery develops wine with a Bordeaux attitude. Offers limited quantities of Cabernet Sauvignon, Chardonnay and Merlot.
- http://www.kestrelwines.com/

Hogue Cellars
- Subsidiary of Phillips-Hogue produces several lines of wines in Prosser. Includes product descriptions along with searchable reviews and tasting notes. Also contains recipes, a family profile, a cork FAQ, and event listings.
- http://www.hogue-cellars.com/

Hinzerling Winery
- Family-operated producer of red and white table and dessert wines. Includes descriptions of current releases, staff profiles, an event calendar, recipes, and a newsletter. Located in Prosser.
- http://www.hinzerling.com/

Bonair Winery
- Zillah producer of Chardonnay, Cabernet, and Merlot. Includes descriptions of current releases, a live vineyard webcam, an award list, and a photo album.
- http://www.bonairwine.com/