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Color image of a table set with food, wine glasses, and a bottle of Quattro Theory Cabernet Sauvignon Color image of a table set with food, wine glasses, and a bottle of Quattro Theory Cabernet Sauvignon

Quattro Theory Napa Valley wines are inspired by four generations of Trinchero family legacy, blending time-honored wisdom with modern craftsmanship to create balanced and food-friendly wines.

Bottles of Quattro Theory Cabernet Sauvignon, Chardonnay, Merlot, and Sauvignon Blanc on an outdoor table setting

Quattro Theory is the embodiment of winemaker Landon Donley’s four essential elements: Vision, Vineyards, Winemaking, and Experience. His meticulous approach results in wines of exceptional quality, sourced primarily from estate vineyards in the southern end of Napa Valley, with a select contribution from a trusted Carneros grower. With over a decade of Napa Valley winemaking experience, Landon crafts wines that highlight site expression and precision. Utilizing a state-of-the-art, luxury-focused winery in St. Helena, he employs purposeful, block-specific yeast selections to enhance vineyard and varietal character, adding depth and complexity. Quattro Theory wines are vibrant, fresh, and impeccably balanced, featuring structured tannins, a composed oak profile, and bright acidity—preserving varietal integrity while delivering a seamless tasting experience.

Quattro Theory Winemaker Emily Haines standing among the vineyards

Winemaker, Emily Haines

Emily’s attention to detail and keen palate developed over 17 years as a winemaker are key to the success of Quattro Theory’s small-lot approach (and her background in biochemistry and biotechnology doesn’t hurt, either). “Every decision, from growing season to bottling, has an impact on the wine in the glass, and I appreciate having the ability to precisely tailor our practices in the vineyard and the cellar to each lot. This allows us to protect and highlight the aromatics and flavors unique to each, and to produce expressive, balanced wines that drink well now, and will drink well years from now.”

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Vineyards and mountains on a sunny day

Vineyards

Quattro Theory wines are sourced predominantly from certified sustainable, estate grown vineyards. Our vineyards are meticulously managed to support quality at every stage of the growing season. With a focus on vine health above and below the ground we support vine self-nutrition, ensure quality hydration and undergo canopy management for the optimal sun exposure. All our fruit is hand harvested at optimal ripeness.

Quattro Theory Wines

  • Napa Valley Sauvignon Blanc

    Napa Valley Sauvignon Blanc

  • Napa Valley Chardonnay

    Napa Valley Chardonnay

  • Napa Valley Merlot

    Napa Valley Merlot

  • Napa Valley Cabernet Sauvignon

    Napa Valley Cabernet Sauvignon

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