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Our Team

Photo of Fred Peterson

Fred Peterson 

Proprietor & Winegrower

My goal for Peterson Winery and myself is a simple one – to craft better and better wines each year. Having grown grapes and made wine since the 70s, we still continue to improve. We also continue our long-standing traditions of farming sustainably and making wines with as much care and attention to detail as possible.


Jamie Peterson
General Manager & Winemaker

“Winemaker etc.” is what Jamie's business card reads.  Although he spends most of his time in the cellar, as general manager he has to wear many different hats including lead tech support, grease monkey and maintenance man, and marketing director.

 2024 will mark his 27th harvest, after having learned on the job as a teenager. After two vintages in Australia and New Zealand at the age of 20. he moved back home and started taking winemaking classes at the Santa Rosa Junior College anbd UC Davis, while also working at the winery and a local restaurant.

When father Fred's assistant winemaker gave notice in 2002, Jamie was tapped to come onbaord to help out, and never left. With on the job training supplemented by extension classes and studies, his winemaking honors the traditions of Zero Manipulation, and has been fine tuned over the past decades. 

When not taking care of winery business, he spends his time with his two young children, exploring the beaches and hills of Sonoma County, cooking, or playing on a softball team with a group of other winery families and freinds.



Jan Gironimi
Wine Club & Office Manager

Jan has been a part of the Peterson family for over two decades, ever since the days in our little red barn. She's usually the one answering your phone calls, answering your questions, and taking your wine orders.


Josh Bartels
Assistant Winemaker

Josh is a proud Midwestern native and graduate of Purdue University. He moved from Indiana to Sonoma County, California to pursue winemaking in 2003. With over 20 harvests and winemaking experience working with 17 different varieties of grapes under his belt, he joined the Peterson Winery team in 2021. When he is not tending to the wines, Josh spends time with his wife and 2 teenage daughters. They enjoy hiking, camping, live music, and spoiling their 3 dogs.