Company lists · Data refreshed November 2026

Top 25 Master gardener programs based in the United States

RevenueBase identified 300 company matches for master gardener programs associated with the United States as of November 2026 and tracks 1,995 professional contacts across them, including 587 with verified work emails. Chicago is the largest hub.

This list covers company matches for master gardener programs associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
300Companies
1,995Contacts tracked
587Verified emails
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The 25 largest master gardener programs based in the United States

Ranked by team size
Top 25 of 300 company matches for master gardener programs based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRichmond, VA, United StatesHQ recorded Nov 6, 202651-200125 contacts →

Exact match

“Lewis Ginter Botanical Garden’s mission is education and our passion is connecting people and plants to improve communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Established in 1900, we transform space and engage communities through horticulture.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSanta Cruz, CA, United StatesHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“Life Lab is a national leader in garden-based learning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBoulder, United StatesHQ recorded Nov 6, 2026n/a54 contacts →

Exact match

“Growing Gardens is a Boulder-based non-profit organization established in 1998.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRichmond, CA, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Urban Tilth inspires, hires, and trains local residents to cultivate agriculture, feed our community, and restore relationships to land to build a more sustainable food system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMemphis, TN, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Memphis Botanic Garden is a nonprofit organization management company based out of Memphis, Tennessee, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Founded in 1922, the American Horticultural Society (AHS) is one of the most respected and longstanding nonprofit gardening organizations in North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 2026n/a35 contacts →

Exact match

“ENRICHLA is a Community Wellness Non-profit focused on building edible gardens in local schools.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Mission Our mission is to teach people how to grow food and promote the benefits gardens bring to our neighborhoods.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Since 2011, we have been teaching people to grow food.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“DUG knows that in order to make lasting change, community needs to drive it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Garden School Foundation provides in-depth garden-based education to youth at Title I schools in Los Angeles, strengthening connections between food justice, environmental…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWellesley, MA, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Massachusetts Horticultural Society is dedicated to encouraging the science and practice of horticulture and to developing the public’s enjoyment, appreciation, and understanding…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTulsa, OK, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Tulsa Botanic Garden is developing on a 170-acre site just 8 miles northwest of downtown Tulsa, Oklahoma.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNational City, CA, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Olivewood Gardens and Learning Center’s historic 6.85-acre property in National City, California serves as an interactive, indoor-outdoor classroom for children and adults from…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKansas City, MO, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“The mission of Kansas City Community Gardens is to assist low-income households and community groups in the Kansas City metropolitan area to produce vegetables and fruit from…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNorthbrook, IL, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“The Organic Gardener Ltd.(TOG) creates beautiful and productive organic edible gardens.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Nov 6, 20261-1022 contacts →

Exact match

“City Blossoms is a nonprofit that cultivates the well-being of our communities through creative programming in kid-driven gardens.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDecatur, GA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“The mission of the Wylde Center is to support resilient communities by connecting people to nature through environmental education and public greenspace.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWilmington, DE, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“The Delaware Center for Horticulture (DCH) was founded in 1977 by members of the Garden Club of Wilmington to promote a love of gardening and urban greening.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMiddletown, OH, United StatesHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“For nearly 70 years, Berns Garden Center & Landscaping has been more than just a place to buy plants.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“At Seed St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Love & Carrots envisions a future where vegetable gardens are commonplace in urban landscapes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchStockbridge, MA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Established in 1934 as the “Berkshire Garden Center” and revered as one of the older public display gardens in the Northeast, Berkshire Botanical Garden is a not-for-profit…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Located in the heart of Charlotte, North Carolina, Wing Haven provides a natural oasis for reflection and study of its three public gardens.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 300 master gardener programs based in the United States

See the full list, filter by size, metro and specialty, and access 587 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Master gardener programs based in the United States at a glance

As of Nov 6, 2026
29.4%Verified-email coverage
6.7Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · Chicago
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
228
11-50
51
51-200
10
201-500
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 300 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “master gardener programs” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 587 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “master gardener programs”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many master gardener programs are there based in the United States?

RevenueBase identified 300 company matches for master gardener programs associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Lewis Ginter Botanical Garden tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most master gardener programs?

Chicago leads with 9 company records, followed by San Francisco (7) and New York (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 587 professional contacts with verified work emails tracked across these 300 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.