Partnerships & Certifications

Beyond Sustainability: Pioneering A Regenerative Future for Napa Valley

A domestic duck glides across the water of a pond situated in a Grgich Hills vineyard. The reflection of a towering tree undulates in the ripples.

Certifications

We’re Regenerative Organic Certified at the Silver Level by the Regenerative Organic Alliance.

Close-up on hands holding a young grapevine delicately. The grapes are just beginning to form, indicating the start of grapegrowing season.

We farm all our estate vineyard’s by the standards of the ROA, and all wines produced from the 2023 vintage forward, as well as our Estate produced olive oil will carry this certification.

We are California Certified Organic by CCOF, and also carry Napa Green’s local sustainable certification, working very closely to build organic and sustainably minded business communities in Napa Valley.

A tree swallow peeking out of it's home - a wooden birdbox affixed to the end of a regeneratively-farmed vineyard row in Napa Valley.
Sustainably-grown purple cabbage thriving in one of the employee gardens on the Grgich Hills Estate property.

Our Research Partners

Our efforts to build a regenerative future involve a constant curiosity about the natural world around us and how we can become a better steward of the ecosystem of which we are a part.

A flock of guinea fowl seek shelter in the shade of weeping willows growing in a Grgich Hills Estate vineyard.
Napa County Resource Conservation District Logo

Napa Resource Conservation District

We partner with the Napa Resource Conservation District to aid in our riparian habitat restoration project in the vineyards.

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Cal Poly Humboldt Owl Project

We partner with Cal Poly Humboldt Owl Project, who conducts yearly research on the barn owls in our vineyards, helping us to better understand the needs and habitats of these feathered vineyard helpers. Click here for more information on the leader of the project.

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Vineyard Songbird Project

We participate in a collaborative Vineyard Songbird Project between Cal Poly Humboldt and UC Davis to further understand ecosystem diversity within our vineyards.

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Xerces Society

We work with Xerces Society Invertebrate Conservation to aid in our creation of native insect habitats.

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Monarch Joint Venture

We partner with Monarch Joint Venture to create habitats for the critically endangered western monarch butterfly.

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Wild Farm Alliance

The Wild Farm Alliance helps us to communicate with researchers, as well as provide platforms and events for those interested in regenerative and sustainable farming.

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The Regenerative Viticulture Foundation Logo

Regenerative Viticulture Foundation

We partner with the Regenerative Viticulture Foundation, who helps us amplify information and promote regenerative viticulture.

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Mike Grgich

Photo by Tom Zimberoff

“Every day, do your best, learn something new, and make a friend.”

–Miljenko “Mike” Grgich, cofounder