About us
Teddy immigrated to the United States with her parents, who helped manage the family dairy, Meadowlark Dairy, in Pleasanton. Her family’s background in the Netherlands during the World War II era helped shape her appreciation for resilience, hard work, and community. As both a business owner and an immigrant, Teddy brings practical experience and a thoughtful perspective to her work. She oversees daily business operations, including the property’s vineyards, plant life, and surrounding environment, with a focus on stewardship, balance, and long-term vitality.
Keith is a native Californian with family roots in Germany who has lived in the Bay Area throughout his life and has developed a strong passion for winemaking. He produces award-winning, handcrafted wines, with a current focus on rosé and dessert wines. As a business owner, Keith remains attentive to client preferences, needs, and evolving trends while managing each stage of the winemaking process, from vineyard cultivation to the finished bottle. He is also a past president of the Pleasanton Rotary and remains actively involved in supporting the surrounding communities. Cheers!
Keith is a native Californian with family roots in Germany who has lived in the Bay Area throughout his life and has developed a strong passion for winemaking. He produces award-winning, handcrafted wines, with a current focus on rosé and dessert wines. As a business owner, Keith remains attentive to client preferences, needs, and evolving trends while managing each stage of the winemaking process, from vineyard cultivation to the finished bottle. He is also a past president of the Pleasanton Rotary and remains actively involved in supporting the surrounding communities. Cheers!
Our Winery
TwiningVine, est. 2003 is Castro Valleys only estate vineyard and winery!
We are nestled on 10 acres surrounded by the rolling hills and forest land of Cull Canyon. Originally a sawmill took residence on the property and overtime the land transitioned to cattle and horse ranches. The circa 1880’s “Red Barn” still stands which was constructed with square nails and redwood. Today the land has gracefully become home to our estate winery where we proudly grow and produce our own award winning wines. Our vineyards are dry farmed and environmentally sustainable. The varietal of grapes grown and produced are Cabernet Franc, Cabernet Sauvignon, Chardonnay, Merlot, Sangiovese, Sauvignon Blanc, Syrah, Tempranillo and Zinfandel. Our red wines tend to be lighter than what you would find in the warmer valleys but have very diverse flavors that are true and stand well on their own. Our white varietals grow well in the canyon and are smooth by nature.Our small estate winery produces approximately 800 cases of wine per year. We strive to maintain the heritage of the property and actively support balance for people, land and nature.TwiningVine is a proud member of the Livermore Valley Winegrowers Association.
Who we Proudly Support
St Rose Hospital Alameda County Fair Foundation
Eden Hospital Rotary Club/Pleasanton
100 Club Rotary Club/Castro Valley
Sheriffs Department/Alameda County St Vincent dePaul
Castro Valley Sports Foundation Angus n Friends
HARD/Morrison Theatre HARD - Hayward Wine Walk
HARD/ Sulphur Creek Nature Center HARD - Rowell Ranch Rodeo
CV Chamber of Commerce/ Wine Walk CV MarketPlace Forestr.org - Castro Valley ASPCA - Oakland
Teen Challenge Plethos Productions
Transfiguration Church/Castro Valley American Legion 649
Rob Warren Foundation Tri Valley Humane Society
SonRise Equestrian Rotary Club - Castro Valley Nobodys perfekt Dogs & Cats/Castro Valley
World Wildlife Federation
Northern California Alzheimer's Association
ESMA (Egyptian Society for Mercy to Animals))
Brook Foundation (USA & Egypt)