Company lists · Data refreshed September 2026

Top 16 Wine cooperatives based in St Helena, United States

RevenueBase identified 30 wine cooperatives headquartered in St Helena, United States as of September 2026 and tracks 271 professional contacts across them, including 139 with verified work emails. Napa is the largest hub.

This list covers wine cooperatives headquartered in St Helena, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
30Companies
271Contacts tracked
139Verified emails
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The 16 largest wine cooperatives based in St Helena, United States

Ranked by team size
Top 16 of 30 wine cooperatives based in St Helena, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to wine cooperatives: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 2026201-50061 contacts →

Partial evidence

“Established in 1989, Long Meadow Ranch now operates a dynamic business that comprises multiple wine estates, namely Rutherford, Mayacamas and Anderson Valley.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-5045 contacts →

Indirect evidence

“Clif Family Winery & Farm was born from the adventurous spirit of Clif Bar co-creators Gary Erickson and Kit Crawford.”

Source: RevenueBase Database · checked Sep 22, 2026
3Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-5024 contacts →

Partial evidence

“Demeine Estates is a family-owned producer, importer and marketer of the world’s finest wines based in the heart of Napa Valley, California.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-1024 contacts →

Indirect evidence

“The moment you walk onto the historic Sinegal Estate the world slows down.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-5021 contacts →

Indirect evidence

“Founded by H.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-5018 contacts →

Partial evidence

“Turley Wine Cellars was founded in Napa Valley by former emergency room physician Larry Turley in 1993.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-509 contacts →

Indirect evidence

“The Revana Vineyards story begins with an extraordinary journey of determination.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-109 contacts →

Indirect evidence

“Ballentine Vineyards: A Century of Legacy and Sustainability in Napa Valley Founded in 1905, Ballentine Vineyards embodies Napa Valley's winemaking heritage.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202611-506 contacts →

Indirect evidence

“Stony Hill Vineyard is located on the rocky northeast slopes of Spring Mountain.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-106 contacts →

Indirect evidence

“A family owned winery in the heart of Napa Valley.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 202651-2003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-103 contacts →

Partial evidence

“Our mission: create wines for the fearless: entrusted to those who are passionate for their dreams and fierce in their tenacity for life.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-101 contacts →

Partial evidence

“Westwood Estate Wine is driven by a vision Beginning with the cleanest organic & sustainably farmed grapes coupled with the best winemakers in the world, our wines are meant to…”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceSt Helena, CA, United StatesHQ checked Sep 22, 20261-101 contacts →

Partial evidence

“Over the last four decades, I’ve walked almost every corner of the Napa Valley striving to understand exactly what makes a great wine.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 16 of 30 wine cooperatives based in St Helena, United States

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Wine cooperatives based in St Helena, United States at a glance

As of Sep 22, 2026
51.3%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
250.0%Largest-city concentration · Napa
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
8
51-200
3
201-500
1

Email recency for this list is measured across the whole United States list rather than for St Helena, so it is reported there. Company counts and contact totals on this page are exact for St Helena, over 30 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among wine cooperatives, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in St Helena, United States whose own description of what they do matches “wine cooperatives”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names wine cooperatives), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among wine cooperatives, and records with no verified work email. Companies headquartered outside St Helena are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 139 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Wine cooperatives by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names wine cooperatives, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many wine cooperatives are there based in St Helena, United States?

RevenueBase identified 30 wine cooperatives headquartered in St Helena, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Long Meadow Ranch, headquartered in St Helena, tops this list with the largest team on record.

Which city has the most wine cooperatives?

Napa leads with 75 headquartered companies, followed by Healdsburg (44) and Paso Robles (41).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 139 verified decision-maker contacts tracked across these 30 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.