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Independent validation that you are meeting Napa Green Vineyard and /or Napa Green Winery practice and performance-based standards, walking the talk, is critical to marketplace assurance. Our network of third-party auditors have gone through training in the Napa Green programming, and will validate implementation of practices that our team has not been able to review. If you are interested in becoming a Napa Green Auditor, please reach out to wegotthis@napagreen.org.
Jill Brodt
An experienced sustainability auditor and California native who has called Sonoma County home for over 20 years. Jill’s previous role as Laboratory Director at Brelje and Race Laboratories, Inc. for over 12 years has given her a strong background in quality control, quality assurance and audit preparation. Her experience in the commercial laboratory sector provides her a unique perspective as a former auditee. She served as a member of the Environmental Laboratory Technical Advisory Committee working closely with members of the State Water Resources Control Board. Jill has an eye for interpreting regulation and choosing appropriate and decisive corrective action. She holds a B.A. in Environmental Studies, with an emphasis in Water Quality, from Sonoma State University.
Auditing Services: Napa Green Vineyard, Napa Green Winery, Accredited Sustainability Auditor for California Certified Winegrowers
Matthew Hoymak
Matthew holds an MBA in Sustainable Management from Presidio Graduate School and brings over 14 years of experience in the hospitality industry as the founder and CEO of Stag Dining Group.
As a certified sustainability practitioner with the Global Reporting Initiative (GRI), Matthew has conducted audits for Fortune 500 companies, including developing waste stream and recycling strategies for NASCAR and assessing Intuit’s energy usage in commercial real estate. For the past two years, he has worked with Deep Planet AI to provide precision agronomy analysis for wine businesses, enhancing vineyard productivity and promoting regenerative farming practices. His work has also included remapping New York’s American Viticultural Areas (AVAs) in collaboration with the New York Wine and Grape Foundation and their grower survey.
Auditing Services: Napa Green Vineyard, Napa Green Winery
Sierra Minchaca
Sierra Minchaca is an independent third-party auditor for Napa Green and LODI RULES with a background in sustainable viticulture, climate-smart farming, and soil health. She previously served as Climate & Soil Specialist for Napa Green’s Vineyard Program, where she conducted vineyard irrigation evaluations, on-site Carbon Farm assessments, and supported certification processes and practice verification. Sierra holds a B.S. in Conservation and Resource Studies from UC Berkeley, advanced training in Carbon Farm Planning through the Carbon Cycle Institute, and has been trained as a Regenerative Agriculture Technical Assistance Provider through Chico State’s Center for Regenerative Agriculture.
She has also contributed to industry outreach as a Napa Green brand ambassador and through the RISE Climate & Wine Symposium, helping elevate conversations on resilience and regenerative farming. Her technical strengths include carbon farm planning, irrigation system evaluation, and sustainability metrics tracking. As an auditor, Sierra ensures compliance with program standards through thorough and objective evaluation.
Auditing Services: Napa Green Winery, LODI RULES
Megan Newhall
A Sonoma County native with over 18 years of experience in management including developing and monitoring guidelines and standards for assuring compliance with state licensure, federal regulations (OSHA, HIPAA etc.) and accreditation. Experienced in quality and internal audits of clinical services, which also involved preparing material for legal inquiries, external audit engagements and corrective action plans. Extensive experience in Human Resource Management and employment law including training, policies and procedures, employee retention, compensation and hiring practices.
B.A. in Communications.
Auditing Services: Napa Green Vineyard, Napa Green Winery, Accredited Sustainability Auditor for California Certified Winegrowers
@tressabores is a truly climate smart winery. They hold both the Napa Green Vineyard and Napa Green Winery Certifications, with a holistic focus on regenerative and organic farming.
In partnership with @napagreen, Tres Sabores launched the “Circle of Sustainers” award program as a way to recognize guest’s support of the sustainable winery. The tasting fees from each selected guest’s experience will be donated in their name to support ongoing sustainability efforts by Napa Green in the Valley.
Book your visit now for a truly unforgettable sustainable winery experience.
📷 @soilrainandhope @tressabores @buddsocial
#sustainablewine #climatesmart #napavalleywine #napavalley #winebusiness #sustainablewinery #wineindustry #sustainablebusiness #winetasting #regenerativefarming #comeoveroctober
Congratulations to @fiordisolewines on achieving @napagreen Winery Certification. Fior di Sole – “Flower of the sun” – is a family-owned and operated wine company located in the heart of Napa Valley, producing exceptional quality wines from Napa and throughout California.
Fior Di Sole is committed to minimizing environmental impact and fostering a healthier planet for future generations. They provide comprehensive wine services, managing the entire process from concept creation, packaging design, winemaking, purchasing, compliance, quality assurance, and bottling, all while prioritizing sustainability.
#sustainablewine #climatesmart #napavalleywine #napavalley #winebusiness #sustainablewinery #wineindustry #sustainablebusiness
@napagreen we believe that every purchasing decision is an opportunity to make a positive impact. That’s why we actively encourage our members to carefully consider their choices, especially when it comes to branded merchandise. We are proud to partner with our sponsor, @jonahmarketing, a company that shares our commitment to responsible and sustainable practices.
We invite all Napa Green members and businesses committed to sustainability to reach out to Jonah Marketing for a custom consultation to help you curate a selection of sustainable merchandise that not only aligns with your brand but also authentically communicates your unique sustainability story to your clients, partners, and employees.
Every piece of branded merchandise you choose tells a story about your organization. Let’s tell a sustainable story together.
#winebusiness #greenbusiness #sustainablebusiness #greenpurchasing #purchasingpower #wineindustry
@napagreen`s Executive Director @abrittain is speaking at @sustainabilityindrinks in London on Tuesday, October 21!
The event brings together industry leaders and policymakers to address sustainability challenges. Anna will join a panel on Labour Standards Across the Supply Chain.
#sustainablebusiness #sustainablewine #conference
Check out our incredible lineup of speakers who will be sharing practical strategies for building soil health, enhancing agroecosystem resilience, and producing exceptional quality grapes!
Join the two-day deep dive workshop, Growing Regenerative Viticulture, on November 18 and 19, 2025 @opusonewinery and @bedrockwines.
Open to @napagreen members and anyone interested in growing their regenerative leadership.
Ticket link in bio. This event will sell out so get your tickets soon!
#climateaction #regenerativeag #regenerativefarming #viticulture #wineindustry #soilhealth #workshop
Congratulations on achieving @napagreen Winery Certification to @camomiwinery, a family owned winery heartcrafting exceptional wines in the Napa Valley!
The @fiordisolewines facility, where they produce their wines, is not only water and energy efficient, they also maintain rigorous recycling standards. Beyond that, the bottling line is certified by @ccoforganic, ensuring that the production processes meet stringent organic standards.
#sustainablewine #climatesmart #napavalleywine #napavalley #winebusiness #sustainablewinery #wineindustry #sustainablebusiness
@napagreen has been a proud @1percentftp Environmental Partner since 2020!
Businesses and individuals can support Napa Green’s critical work in climate action, regenerative carbon farming, and social equity within the wine industry through 1% For The Planet’s environmental giving platform.
We are grateful to 1% For The Planet’s dedication to brining businesses and environment organizations together to support people and the planet!
Thank you to our 1% For The Planet Business partners @spottswoodewinery @patagonia @anarchistwineco and @mp_egan39!
#climateaction #regenerativeag #climatesmart #nonprofit #onepercentfortheplanet #environmentalgiving #socialequity
Congratulations @bellaunionwine on achieving @napagreen Winery recertification!
Powered by @mcecleanenergy Deep Green 100% Renewable Energy, Bella Union believes in minimizing their environmental impact, maximizing care for their ecosystems, and making a difference in the lives of their employees and community.
Explore their beautiful tasting room, featuring an artist-in-residence program, and discover the passion and quality in every glass.
#sustainablewine #climatesmart #winetasting #napavalleywine #napavalley #winebusiness #sustainablewine #sustainablewinery
Congratulations to these @napagreen Certified Members for winning the @greatwinecapitals Napa Valley Regional Best of Wine Tourism Awards!
🌟@sterlingvineyards for Innovative Wine Tourism Experiences
🌟 @chandonusa for Sustainable Wine Tourism Practices
🌟 @cliffamily for Culinary Experiences
Thank you for your commitment to excellence and sustainability!
#visitnapa #visitnapavalley #winetasting #ecotourism #climatesmartwine #sustainablewine #sustainablewines #winecountry
JOIN US for an inspiring two-day deep dive into regenerative viticulture, designed to equip growers with practical strategies for building soil health, enhancing agroecosystem resilience, and producing exceptional quality grapes.
November 18, 2025 @opusonewinery
November 19, 2025 @bedrockwines
This event is for anyone interested in growing their leadership.
🎟️ Ticket link in bio.
#regenerativefarming #regenerativeag #winebusiness #vineyard #climateaction #climatesmart #soilhealth #regenerativeviticulture
Congratulations @ilsleyvineyards on achieving @napagreen Vineyard Certification!
With four generations farming over six decades and over 100 years of history in the Napa Valley, the Ilsley family is committed to elevating their vineyard and farming practices. The Napa Green Vineyard Certification aligns with this whole property approach to farming, encompassing the full agroecosystem – from what is happening underground in the soil, to what is happening in the atmosphere, to how this impacts the broader community.
Thank you for being regenerative farming leaders!
#regenerativeag #regenerativefarming #wineindustry #sustainablewine #climatesmart #napavalleywine #napavalley #landstewardship #winebusiness
@frankfamilyvineyards is not only both @napagreen Vineyard and Winery Certified, they have also partnered with @4ocean to support ocean and coastline cleanups!
Check out this outstanding winery to learn more about their leading sustainability practices and this amazing initiative! 🌊
#climateaction #winebusiness #winetasting #napavalley #napavalleywine #coastalcleanup #oceancleanup #visitnapavalley #climatesmartwine #regenerativeag
Congratulations to one of our founding members, @stsupery on achieving both @napagreen Vineyard and Winery recertification!
St Supery’s ongoing commitment to sustainability and continuing improvement is evident throughout their business. When visiting the tasting room, guests are greeted by cheerful Bluebirds that live in the strategically placed bird boxes to act as natural pest control. From there, you pass by the culinary gardens that are incorporated into the farm-to-table pairings, to the stunning tasting room where you can see the solar energy generated to power the property in real-time, and learn about all of the incredible sustainability initiatives from soil to bottle.
Thank you St Supery for your commitment to the community, land stewardship, and sustainable leadership!
#sustainablewine #climatesmart #winetasting #napavalleywine #napavalley #regenerativeag #landstewardship #winebusiness
In celebration of their 40th anniversary vintage, the Novak family of @spottswoodewinery has donated a complete 40-vintage vertical collection of their Estate Cabernet Sauvignon (1982-2021), plus an invitation to their exclusive annual vertical tasting, which is available through @christieswine to support the nonprofit, @napagreen, a leader in sustainability and climate action in the wine industry.
@mkshepp of Spottswoode shares, “As we celebrate 40 years of organic farming and work to change paradigms and build resilience through regenerative systems, we see Napa Green as a vital partner in expanding that mission across the wine industry. This auction isn’t just about Spottswoode’s history; it’s an investment in the future of winegrowing that prioritizes the health of our natural environment, our workers, and our community.”
#winetasting #winelover #winecollector #winecollection #finewine #fineandrarewines
LAST CHANCE to bid on this @christieswine Fine and Rare Wines lot, featuring a 19-magnum vertical of @opusonewinery vintages 2001-2019 hand-selected and signed from the private collection of @opus_one_winemaker, Michael Silacci, as well as an Opus One Harvest Experience for four.
#winetasting #winelover #winecollector #winecollection #finewine #fineandrarewines
Michael Silacci, @opus_one_winemaker, has hand-selected an extraordinary vertical of @opusonewinery magnums from his private collection, which are available through @christieswine to support the nonprofit @napagreen, a leader in sustainability and climate action in the wine industry.
“Napa Green plays a vital, fundamental role in grape growing within and beyond the vineyard boundaries in Napa Valley,” said Michael Silacci. “The team, comprised of experts in all essential elements of farming and stewardship, provides education, guidance, and holds us accountable. Year after year they continue to evolve and challenge us to be better citizens. I want to do all I can to help Napa Green rise. Napa Green not only strengthens our community but also inspires a deeper sense of purpose – within ourselves, and in how we care for the land we love so dearly.”
#winetasting #winelover #winecollector #winecollection #finewine #fineandrarewines
