Director of Winemaking, Bill Brosseau

Director of Winemaking, Bill Brosseau has been with Testarossa since the year 2000. Bill brings extensive viticultural experience in the field and from the classroom. He studied at UC Davis where he received his Bachelor of Science in Viticulture and Enology. His unique approach to winemaking comes from working both sides of the equation—in the vineyard and in the cellar. Because Bill is also a grower, he brings invaluable hands-on experience and a unique perspective that allows him to supply the winery with only the best Pinot Noir and Chardonnay fruit to translate into the most sought-after wines. Key to this is Bill’s ability to establish close, long-term relationships with the top vineyards, ensuring exceptional quality vintage to vintage. 


At Testarossa, all of our winemaking expertise and experience flows towards one goal: crafting elegant, limited release Pinot Noir and Chardonnay worthy of your table.

Brosseau works both sides of the equation – in the vineyard and in the cellar - to translate the state’s best Pinot Noir and Chardonnay fruit into the state’s most sought-after wines. Behind our historic hand-hewn stone walls, Bill and his team employ traditional techniques and modern tools. Native yeast fermentations in sixty gallon French oak barrels for our Chardonnays. Hand sorting, extended pre-soaks, and small, custom designed stainless steel fermenters for our Pinot Noir. And everywhere, gentle, gravity-fed movement of the wines to preserve the vineyard’s character and integrity.

The results speak for themselves. Testarossa has an impressive, decades long track record of accolades and ninety-plus point scores from Wine Spectator, Robert Parker's Wine Advocate, Antonio Galloni's Vinous Media, Wine Enthusiast and Connoisseurs’ Guide.

Only our two, rarest wines carry a Jensen family name – the Diana’s Chardonnay and the Niclaire Pinot Noir. These wines are made by blending the top barrels of the vintage into the premier statement of the season. The Jensen Reserve Society is the best way for collectors to reserve their share of these two, limited gems.

The wines of Testarossa are made in very limited, small lots.
Many of the wines sell out quickly to our Club Testarossa
members. For wines currently available for purchase, please
visit our online wine shop.

Sustainability Statement