Steve Matthiasson is a Napa Valley winemaker and viticulturalist whose influence has reshaped the conversation around California wine. Known for his restrained, elegant style and deep commitment to sustainable farming, he is both a celebrated producer and a trusted vineyard consultant to some of the region’s most respected estates. Alongside his wife Jill, he founded Matthiasson Wines in 2003, creating a label defined by its freshness, balance, and reverence for both classic and unusual grape varieties.

With a background in philosophy and horticulture, Matthiasson brings a thoughtful, agriculture-first approach to winemaking. His early work in integrated pest management and organic viticulture helped lay the foundation for California’s sustainable winegrowing movement. In fact, he co-authored the influential Lodi Winegrower’s Workbook, which became a blueprint for the state’s environmental standards in viticulture.

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