Company lists · Data refreshed September 2026

Top 25 Conservation education nonprofits based in the United States

RevenueBase identified 1,115 company matches for conservation education nonprofits associated with the United States as of September 2026 and tracks 24,858 professional contacts across them, including 8,065 with verified work emails. New York is the largest hub.

This list covers company matches for conservation education nonprofits 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 19, 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 19, 2026 How this list was built
1,115Companies
24,858Contacts tracked
8,065Verified emails
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The 25 largest conservation education nonprofits based in the United States

Ranked by team size
Top 25 of 1,115 company matches for conservation education nonprofits based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchArlington, VA, United StatesHQ recorded Sep 19, 20265,001-10,0006,526 contacts →

Exact match

“Air, water, food, shelter, income: nature sustains every aspect of our lives.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchArlington, VA, United StatesHQ recorded Sep 19, 2026201-500795 contacts →

Exact match

“The Student Conservation Association (SCA) is the largest provider of hands-on environmental conservation programs for youth and adults.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchReston, VA, United StatesHQ recorded Sep 19, 2026201-500585 contacts →

Exact match

“As America's largest non-profit conservation organization, the National Wildlife Federation works closely with those who span the social and political spectrum, but who are…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchLincoln, MA, United StatesHQ recorded Sep 19, 2026201-500554 contacts →

Exact match

“Mass Audubon is the largest nature-based conservation organization in New England.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchFlagstaff, AZ, United StatesHQ recorded Sep 19, 202651-200521 contacts →

Exact match

“American Conservation Experience (ACE) is a national nonprofit conservation corps that recruits, trains, and mobilizes over young adults and emerging professionals annually to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 19, 2026201-500378 contacts →

Exact match

“The mission of the Appalachian Mountain Club is to foster the protection, enjoyment, and understanding of the outdoors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchArlington, VA, United StatesHQ recorded Sep 19, 202651-200368 contacts →

Exact match

“Rare is a global leader in driving social change for people and nature.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchGloucester, MA, United StatesHQ recorded Sep 19, 202651-200240 contacts →

Exact match

“Seaside Sustainability is a nationally recognized, award-winning 501(c)3 charitable organization dedicated to community engagement, education and environmental conservation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchArlington, VA, United StatesHQ recorded Sep 19, 2026201-500224 contacts →

Exact match

“We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchDurango, CO, United StatesHQ recorded Sep 19, 202651-200213 contacts →

Exact match

“Conservation Legacy is a national organization dedicated to supporting locally based conservation service programs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchSt. Paul, MN, United StatesHQ recorded Sep 19, 2026201-500207 contacts →

Exact match

“At Conservation Corps Minnesota & Iowa, youth and young adults grow as environmental stewards and leaders while giving back to the community through meaningful service.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchBozeman, MT, United StatesHQ recorded Sep 19, 2026n/a193 contacts →

Exact match

“Montana Conservation Corps is a nonprofit organization whose mission is to inspire young people, through hands-on conservation service to be leaders, stewards of the land, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchSausalito, CA, United StatesHQ recorded Sep 19, 2026201-500188 contacts →

Exact match

“Environmental science in nature’s classroom NatureBridge provides hands-on environmental science programs for young people.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchGrand Rapids, MI, United StatesHQ recorded Sep 19, 202651-200158 contacts →

Exact match

“John Ball Zoo is a 501(c)(3) nonprofit corporation committed to the advancement of public education on the need for wildlife conservation and preservation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202651-200157 contacts →

Exact match

“The National Park Foundation works to protect wildlife and park lands, preserve history and culture, educate and engage youth, and connect people everywhere to the wonder of parks.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLos Angeles, CA, United StatesHQ recorded Sep 19, 202651-200129 contacts →

Exact match

“The primary mission of the LA Conservation Corps is to provide at-risk young adults and school-aged youth with opportunities for success by providing them with job skills…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchHonolulu, HI, United StatesHQ recorded Sep 19, 202651-200127 contacts →

Exact match

“Much like the Kupukupu Fern, which is one of the first plants to bring life back to the land after a devastating lava flow, Kupu’s heart is to bring life back to the people, land…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchBainbridge Island, WA, United StatesHQ recorded Sep 19, 202651-200112 contacts →

Exact match

“As an environmental education nonprofit, we believe there are many paths to creating a more sustainable and equitable world.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchBoulder, CO, United StatesHQ recorded Sep 19, 202611-50112 contacts →

Exact match

“Leave No Trace is a member-funded 501(c)(3) non-profit organization providing Leave No Trace programs, education, training, and outreach in all 50 states and more than 100…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchDurango, CO, United StatesHQ recorded Sep 19, 202611-50108 contacts →

Exact match

“Empowering individuals to positively impact their lives, their communities and the environment, Southwest Conservation Corps (SCC) operates conservation service programs across…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchMissoula, MT, United StatesHQ recorded Sep 19, 202651-200105 contacts →

Exact match

“EPI is a non-profit organization dedicated to developing place-based, ecological education partnerships between local experts and high school students to address critical…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchJuno Beach, FL, United StatesHQ recorded Sep 19, 202611-50103 contacts →

Exact match

“Loggerhead Marinelife Center is a nonprofit sea turtle hospital that promotes the conservation of ocean ecosystems with a special focus on sea turtles.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Sep 19, 2026n/a100 contacts →

Exact match

“Earthwatch Institute is focused on expanding access to hands-on science education.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLong Island City, NY, United StatesHQ recorded Sep 19, 202651-20099 contacts →

Exact match

“Solar One is a non-profit, environmental education organization that fosters sustainable practices and environmental equity across New York City.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Sep 19, 202611-5090 contacts →

Exact match

“Sprout Up (formerly Environmental Education for the Next Generation) is a 501(c)(3) nonprofit organization founded by undergraduate students at the University of California, Santa…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 1,115 conservation education nonprofits based in the United States

See the full list, filter by size, metro and specialty, and access 8,065 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Conservation education nonprofits based in the United States at a glance

As of Sep 19, 2026
32.4%Verified-email coverage
22.3Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
753
11-50
275
51-200
63
201-500
11
501-1,000
4
1,001-5,000
2
5,001-10,000
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 1,115 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 “conservation education nonprofits” 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 8,065 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 19, 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 “conservation education nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many conservation education nonprofits are there based in the United States?

RevenueBase identified 1,115 company matches for conservation education nonprofits 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?

The Nature Conservancy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most conservation education nonprofits?

New York leads with 28 company records, followed by Washington (22) and Los Angeles (15).

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 8,065 professional contacts with verified work emails tracked across these 1,115 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 19, 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.