Certifying Sustainable Wines Since 2008

SIP Certified is dedicated to protecting the people and the planet by supporting sustainable winegrowing practices. 43 million bottles and counting are SIP Certified. Our winegrowers and winemakers understand that their actions have implications beyond the fence line.

Jim Stollberg

Maverick Farming Company

A Tale of Two Seasons

Jim Stollberg finds himself standing in fields quite often. Between managing a few thousand acres of vineyards around the Central Coast and coaching his twin sons’ baseball teams through the years, Jim finds balance in the changing of his seasons.

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Niels and Bimmer Udsen

Castoro Cellars

Creating a Sustainable Community

From their beginnings, the Udsens always look at farming practices of yesteryear to serve as alternatives to spraying harmful chemicals on their vineyards. Using practices like tilling, they understand their soil, as their community, is a living, breathin

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The Latest From SIP

Recent News

Giving Back: Social Responsibility
June 9, 2020

With conscious consumerism on the rise, it’s important to not only invest in social responsibility but to be proud of what you’re doing. Let’s take a look at some community building charities from SIP Certified members and hope it sparks ideas for future initiatives. Big or small, wineries helping in their respective communities make all the difference.



Eligibility Process
June 30, 2020

Deadlines for 2020 SIP Certified.