Independent Third-Party Auditors

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

napagreen

768 4,767

From soil to bottle - the leading sustainable wine growing certification program for Napa County Vineyards & Wineries.
Follow @risewinesymposium

What a great #OneBlockChallenge first field day!

Not only was it a gorgeous day with a great community of people we also heard from some awesome speakers:
🍇 @cainethompson about the @regenerativeviticulture foundation and the implementation practices
🍇 Jordan Lonberg @coastalvineyardcare about continuous improvement and shifting the industry mindset
🍇 @soilrainandhope about the practical aspects of the regeneratives practices and how @napagreen and @naparcd can provide support
🍇 Dustin Owen @celaniwines about their their vineyard’s regenerative journey

Thanks to all who attended and to @celaniwines for hosting!

➡️ To learn more about regenerative vineyard practices or to enroll in either the One Block Challenge or Napa Green Vineyard certification, head to the links in our bio.

#regenerativeag #climateaction

Open post by napagreen with ID 18073947275123726
What a great #OneBlockChallenge first field day! Not only was it a gorgeous day with a great community of people we also heard from some awesome speakers: 🍇 @cainethompson about the @regenerativeviticulture foundation and the implementation practices 🍇 Jordan Lonberg @coastalvineyardcare about continuous improvement and shifting the industry mindset 🍇 @soilrainandhope about the practical aspects of the regeneratives practices and how @napagreen and @naparcd can provide support 🍇 Dustin Owen @celaniwines about their their vineyard’s regenerative journey Thanks to all who attended and to @celaniwines for hosting! ➡️ To learn more about regenerative vineyard practices or to enroll in either the One Block Challenge or Napa Green Vineyard certification, head to the links in our bio. #regenerativeag #climateaction
82 1

It’s hard to believe it’s already been 3 years since @marisataylorwines joined our team, but time flies when you’re having fun (and wine)!

Join us in celebrating Marisa Taylor, who is an accomplished winemaker and sustainability leader with over two decades of experience in the wine industry, and also the Napa Green Winery Program Manager, where she partners with wineries across Napa Valley to advance meaningful environmental stewardship and sustainable winegrowing practices. 
 
Thank you for bringing your passion and positive energy to our team every day!

The team celebrated with our @napagreen certified #NapaNeighbors @rombauervineyards.

#winebusiness #womeninwine #sustainablewine

Open post by napagreen with ID 18039986000743877
It’s hard to believe it’s already been 3 years since @marisataylorwines joined our team, but time flies when you’re having fun (and wine)! Join us in celebrating Marisa Taylor, who is an accomplished winemaker and sustainability leader with over two decades of experience in the wine industry, and also the Napa Green Winery Program Manager, where she partners with wineries across Napa Valley to advance meaningful environmental stewardship and sustainable winegrowing practices.    Thank you for bringing your passion and positive energy to our team every day! The team celebrated with our @napagreen certified #NapaNeighbors @rombauervineyards. #winebusiness #womeninwine #sustainablewine
80 10

Join us for the @napagreen and @regenerativeviticulture #OneBlockChallenge first field day on February 12, 2026 from 10-12 @celaniwines.

This event is open to all winegrowers and vintners who are curious about regenerative viticulture but space is limited so register today at the link in our bio.

#soilhealth #regenerativeviticulture

Open post by napagreen with ID 18125996497557259
Join us for the @napagreen and @regenerativeviticulture #OneBlockChallenge first field day on February 12, 2026 from 10-12 @celaniwines. This event is open to all winegrowers and vintners who are curious about regenerative viticulture but space is limited so register today at the link in our bio. #soilhealth #regenerativeviticulture
35 2

Congratulations to @domainecarneros for receiving the @napachamberofcommerce Sustainable Business of the Year award presented by @mcecleanenergy.

Thank you for your leadership, innovation and dedication to sustainability and the community!

#greenbusiness #winebusiness #napagreencertified #napagreen

Open post by napagreen with ID 18387785611196230
Congratulations to @domainecarneros for receiving the @napachamberofcommerce Sustainable Business of the Year award presented by @mcecleanenergy. Thank you for your leadership, innovation and dedication to sustainability and the community! #greenbusiness #winebusiness #napagreencertified #napagreen
106 2

@antinorinapavalley family’s winemaking legacy spans over six centuries. To ensure that legacy continues, they have a deep commitment to sustainability and the care of the land for future generations.

Hear why Antinori is exploring the use of @hopenvironmental1965 soil compostable tie tape in the vineyard.

#regenerativevineyard #greenbusiness #sustainablewinery #greenpurchasing #landstewardship

Open post by napagreen with ID 18109215520662298
@antinorinapavalley family’s winemaking legacy spans over six centuries. To ensure that legacy continues, they have a deep commitment to sustainability and the care of the land for future generations. Hear why Antinori is exploring the use of @hopenvironmental1965 soil compostable tie tape in the vineyard. #regenerativevineyard #greenbusiness #sustainablewinery #greenpurchasing #landstewardship
50 2

‼️ Save this Itinerary ‼️

@mvino1 has spent her career in the wine business telling the unique stories of wineries and as a Sommelier and Vintner. Here she has created an itinerary that showcases a rich variety of regional efforts in the Stag’s Leap District, Oakville and northern St. Helena. Check it out to experience the whole systems, regenerative practices at each of these @napagreen certified wineries that are as essential and unique as the terroir we pride ourselves on here in Napa Valley.

📍 @chimneyrockwinery
📍 @bcellars
📍 @boeschenvineyards

Visit these wineries to create deep meaningful connections and support local, sustainable businesses. Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 18424855471113889
‼️ Save this Itinerary ‼️ @mvino1 has spent her career in the wine business telling the unique stories of wineries and as a Sommelier and Vintner. Here she has created an itinerary that showcases a rich variety of regional efforts in the Stag’s Leap District, Oakville and northern St. Helena. Check it out to experience the whole systems, regenerative practices at each of these @napagreen certified wineries that are as essential and unique as the terroir we pride ourselves on here in Napa Valley. 📍 @chimneyrockwinery 📍 @bcellars 📍 @boeschenvineyards Visit these wineries to create deep meaningful connections and support local, sustainable businesses. Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
43 1

We love working with @mcecleanenergy to not only help you save energy but also money!

Hear from Dominus Estate’s Tod Mostero to hear how much they saved from a lighting change then connect with the Napa Green or MCE team to learn more.

🎥 @robot_productions

#energyefficiency #climateaction #sustainablebusiness #greenbusiness #sustainablewine

Open post by napagreen with ID 18150775828437600
We love working with @mcecleanenergy to not only help you save energy but also money! Hear from Dominus Estate’s Tod Mostero to hear how much they saved from a lighting change then connect with the Napa Green or MCE team to learn more. 🎥 @robot_productions #energyefficiency #climateaction #sustainablebusiness #greenbusiness #sustainablewine
25 3

‼️Save this Itinerary‼️

Check out these stunning @napagreen certified wineries in this itinerary from @evyncam that takes you from the bay to the forest to explore the wide range of ecosystems that Napa Valley has to explore.

📍 @bouchaine_vineyards
📍 @ruddestate
📍 @seaveyvineyard

Visit these wineries to create deep meaningful connections and support local, sustainable businesses. Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 18248810245288109
‼️Save this Itinerary‼️ Check out these stunning @napagreen certified wineries in this itinerary from @evyncam that takes you from the bay to the forest to explore the wide range of ecosystems that Napa Valley has to explore. 📍 @bouchaine_vineyards 📍 @ruddestate 📍 @seaveyvineyard Visit these wineries to create deep meaningful connections and support local, sustainable businesses. Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
55 3

Find out what being @napagreen certified means to @joshwidaman and the team @pineridgewine, then go for a visit and taste the love in every bottle!

#sustainablewine #regenerativeviticulture #winetasting

Open post by napagreen with ID 18054864959363298
Find out what being @napagreen certified means to @joshwidaman and the team @pineridgewine, then go for a visit and taste the love in every bottle! #sustainablewine #regenerativeviticulture #winetasting
54 2

‼️ Save this Itinerary ‼️

Check out this itinerary by @danpetroski of participating @napagreen wineries and vineyards that contribute to the long-term health of our land and ensure that Napa Valley remains a thriving and beautiful region for future generations.

📍 @larkmeadvineyards
📍 @silveroakcellars
📍 @vsattui

Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 17910541287274704
‼️ Save this Itinerary ‼️ Check out this itinerary by @danpetroski of participating @napagreen wineries and vineyards that contribute to the long-term health of our land and ensure that Napa Valley remains a thriving and beautiful region for future generations. 📍 @larkmeadvineyards 📍 @silveroakcellars 📍 @vsattui Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
8 1

‼️ Save this Itinerary ‼️

This is not your typical itinerary by @abrittain – wetting your palate for wine producers that are difficult, perhaps impossible, to visit. However, if you are a wine connoisseur seeking exceptional wines from sustainability and climate leaders you should absolutely put in the effort to secure wines from these @napagreen certified producers.

📍 @dominusestatewinery
📍 @lailvineyards
📍 @adamvs

Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 18085815553863954
‼️ Save this Itinerary ‼️ This is not your typical itinerary by @abrittain – wetting your palate for wine producers that are difficult, perhaps impossible, to visit. However, if you are a wine connoisseur seeking exceptional wines from sustainability and climate leaders you should absolutely put in the effort to secure wines from these @napagreen certified producers. 📍 @dominusestatewinery 📍 @lailvineyards 📍 @adamvs Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
20 1

‼️Save this Itinerary ‼️

This itinerary is ideal for a girls’ trip or a day out with friends! Discover the sustainable side of Napa with @goodfriendsgoodfood itinerary, which celebrates diversity and offers wines tailored to a range of palates.

These @napagreen certified wineries provide beautiful settings to connect over fantastic wine, all while supporting positive change within the wine industry.

📍 @domainecarneros
📍 @rdwinery
📍 @trefethenfamily

Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 18084091499105010
‼️Save this Itinerary ‼️ This itinerary is ideal for a girls’ trip or a day out with friends! Discover the sustainable side of Napa with @goodfriendsgoodfood itinerary, which celebrates diversity and offers wines tailored to a range of palates. These @napagreen certified wineries provide beautiful settings to connect over fantastic wine, all while supporting positive change within the wine industry. 📍 @domainecarneros 📍 @rdwinery 📍 @trefethenfamily Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
22 1

‼️ Save this itinerary‼️

This itinerary by Sommelier and Vintner, @danpetroski, showcases a rich variety of regional efforts from @napagreen certified wineries with a diversity of style, size, production and profiles, where each place focuses on varies in accordance with their distinct microclimate.

Be sure to check out the second 1/2 of this itinerary to complete your visit!

📍 @ashesxdiamonds
📍 @cliffledevineyards
📍 @hydewines

Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong.

#winetasting #sustainablewine #winetastingitinerary

Open post by napagreen with ID 18090316288948078
‼️ Save this itinerary‼️ This itinerary by Sommelier and Vintner, @danpetroski, showcases a rich variety of regional efforts from @napagreen certified wineries with a diversity of style, size, production and profiles, where each place focuses on varies in accordance with their distinct microclimate. Be sure to check out the second 1/2 of this itinerary to complete your visit! 📍 @ashesxdiamonds 📍 @cliffledevineyards 📍 @hydewines Looking for holiday experiences that create deep meaningful connections and support local, sustainable businesses? Check out our climate smart itineraries - you really can’t go wrong. #winetasting #sustainablewine #winetastingitinerary
20 0
This error message is only visible to WordPress admins
Error: There is no connected business account for the user .