Company lists · Data refreshed September 2026

Top 25 Plant conservation organizations based in the United States

RevenueBase identified 123 company matches for plant conservation organizations associated with the United States as of September 2026 and tracks 1,273 professional contacts across them, including 522 with verified work emails. Sacramento is the largest hub.

This list covers company matches for plant conservation organizations 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 September 20, 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 Sep 20, 2026 How this list was built
123Companies
1,273Contacts tracked
522Verified emails
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The 25 largest plant conservation organizations based in the United States

Ranked by team size
Top 25 of 123 company matches for plant conservation organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchWashington, DC, United StatesHQ recorded Sep 20, 202651-200202 contacts →

Exact match

“Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchAustin, TX, United StatesHQ recorded Sep 20, 202651-20088 contacts →

Exact match

“The University of Texas at Austin's Lady Bird Johnson Wildflower Center inspires the conservation of native plants through its gardens and education, research and outreach…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5070 contacts →

Exact match

“For almost 35 years, the Society for Conservation Biology (SCB) has proudly served as the premier international organization of professionals and students who dedicate their work…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchSanta Barbara, CA, United StatesHQ recorded Sep 20, 202651-20067 contacts →

Exact match

“The Santa Barbara Botanic Garden fosters the conservation of California's native plants through our gardens, scientific research, and education programs, and serves as a role…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSacramento, CA, United StatesHQ recorded Sep 20, 202611-5061 contacts →

Exact match

“The mission of CNPS is to conserve California native plants and their natural habitats, and increase understanding, appreciation, and horticultural use of native plants.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchWarrenton, VA, United StatesHQ recorded Sep 20, 202611-5053 contacts →

Exact match

“For more than 35 years, Rainforest Trust has not wavered from its mission of preventing deforestation, preserving critical habitat and safeguarding endangered species.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchCorvallis, OR, United StatesHQ recorded Sep 20, 202651-20044 contacts →

Exact match

“The Institute for Applied Ecology is a non-profit 501(c)(3) organization founded in with a mission to conserve native species and habitats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchKalaheo, HI, United StatesHQ recorded Sep 20, 202651-20043 contacts →

Exact match

“National Tropical Botanical Garden is dedicated to preserving tropical plant diversity and stemming the tide of extinction - through plant exploration, propagation, habitat…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchWestport, CT, United StatesHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“Where nature education, conservation, and science meet.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchWayland, MA, United StatesHQ recorded Sep 20, 202611-5033 contacts →

Exact match

“Native Plant Trust is the nation’s first plant conservation organization and the only one solely focused on New England’s native plants.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchNeenah, WI, United StatesHQ recorded Sep 20, 20261-1027 contacts →

Exact match

“Wild Ones: Native Plants, Natural Landscapes promotes environmentally sound landscaping practices to preserve biodiversity through the preservation, restoration and establishment…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5025 contacts →

Exact match

“NYC Bird Alliance protects birds and habitats, strengthening biodiversity through science, advocacy, and community engagement.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchEast Haddam, United StatesHQ recorded Sep 20, 20261-1017 contacts →

Exact match

“White Buffalo is a 510(c)(3) organization and was started in 1996.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchMelbourne, FL, United StatesHQ recorded Sep 20, 20261-1016 contacts →

Exact match

“The Florida Native Plant Society is dedicated to the preservation, conservation, and restoration of the native plants and native plant communities of Florida.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchWales, MA, United StatesHQ recorded Sep 20, 20261-1015 contacts →

Exact match

“Founded in 1964 by Arthur D.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchFredericksburg, TX, United StatesHQ recorded Sep 20, 20261-1015 contacts →

Exact match

“The Native Plant Society of Texas is a nonprofit organization with more than 30 chapters across the state that work to further its mission to promote conservation, research, and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchFlorence, MT, United StatesHQ recorded Sep 20, 202651-20012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchOakland, NJ, United StatesHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“Restore Native Plants is an innovative team focused on restoring the region’s native plant and animal species – many of which have become threatened and endangered.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchOrlando, FL, United StatesHQ recorded Sep 20, 20261-1011 contacts →

Exact match

“The Florida Wildflower Foundation protects, connects and expands native wildflower habitats through education, research, planting and conservation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchEugene, OR, United StatesHQ recorded Sep 20, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 20, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchEscondido, CA, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“FPI is dedicated to conducting long-term research and conservation, while providing training and education, in some of the Earth's most bio-diverse and threatened habitats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSharon, CT, United StatesHQ recorded Sep 20, 20261-109 contacts →

Exact match

“Welcome to Homegrown National Park®, a 501(c)(3) non-profit co-founded by Doug Tallamy and Michelle Alfandari.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchRichmond, CA, United StatesHQ recorded Sep 20, 20261-109 contacts →

Exact match

“Cal-IPC’s mission is to protect California’s environment and economy from invasive plants.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchEscondido, CA, United StatesHQ recorded Sep 20, 20261-108 contacts →

Exact match

“A network of word class botanical gardens dedicated to ending plant extinction.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 123 plant conservation organizations based in the United States

See the full list, filter by size, metro and specialty, and access 522 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plant conservation organizations based in the United States at a glance

As of Sep 20, 2026
41.0%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Sacramento
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
88
11-50
22
51-200
10
201-500
1
10001+
1

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 123 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 “plant conservation organizations” 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 522 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 September 20, 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 “plant conservation organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plant conservation organizations are there based in the United States?

RevenueBase identified 123 company matches for plant conservation organizations associated with the United States as of September 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?

Defenders Of Wildlife tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most plant conservation organizations?

Sacramento leads with 3 company records, followed by Austin (2) and Escondido (2).

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 522 professional contacts with verified work emails tracked across these 123 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 September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 123 plant conservation organizations based in the United States. Start with a free account, no credit card.

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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.