Company lists · Data refreshed September 2026
Top 25 Wildlife conservation groups based in the United States
RevenueBase identified 531 wildlife conservation groups headquartered in the United States as of September 2026 and tracks 23,794 professional contacts across them, including 7,984 with verified work emails. New York is the largest hub.
This list covers wildlife conservation groups headquartered in the 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.
The 25 largest wildlife conservation groups based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,526 contacts → | ||||
Indirect evidence “Air, water, food, shelter, income: nature sustains every aspect of our lives.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,663 contacts → | ||||
Partial evidence “WCS stands for wildlife and wild places.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 942 contacts → | ||||
Indirect evidence “NRDC is the nation's most effective environmental action organization.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 900 contacts → | ||||
Indirect evidence “The National Audubon Society protects birds and the places they need, today and tomorrow, throughout the Americas using science, advocacy, education, and on-the-ground…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 585 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 554 contacts → | ||||
Partial evidence “Mass Audubon is the largest nature-based conservation organization in New England.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 355 contacts → | ||||
Indirect evidence “IFAW explores new ways to improve conditions for animals, people, and the place we call home-and we’ve been leading the way for over 50 years.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 252 contacts → | ||||
Strong evidence “The National Fish and Wildlife Foundation (NFWF) works with partners to foster sustainable and impactful conservation solutions so that people and nature thrive together.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 232 contacts → | ||||
Partial evidence “The Jane Goodall Institute is a global, community-led conservation organization founded in 1977 that advances the vision and work of Dr.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 219 contacts → | ||||
Indirect evidence “At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature, to the existence in our world of a vast diversity of wild animals…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 218 contacts → | ||||
Partial evidence “Founded in 2006, Panthera is devoted to the conservation of the world’s 40 species of wild cats and the vast ecosystems they inhabit.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 202 contacts → | ||||
Partial evidence “Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 188 contacts → | ||||
Strong evidence “Wildlife Works is a community-centered wildlife conservation company that implements market-based initiatives to protect the planet’s threatened wilderness and endangered wildlife.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 178 contacts → | ||||
Strong evidence “RMEF is a wildlife conservation organization with a mission of ensuring the future of elk, other wildlife, their habitat and our hunting heritage.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 160 contacts → | ||||
Strong evidence “Point Blue Conservation Science (Point Blue) is dedicated to conserving birds, other wildlife, and ecosystems through innovative scientific research, restoration, outreach and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 120 contacts → | ||||
Indirect evidence “American Bird Conservancy (ABC) takes bold action to conserve wild birds and their habitats throughout the Americas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 105 contacts → | ||||
Indirect evidence “EPI is a non-profit organization dedicated to developing place-based, ecological education partnerships between local experts and high school students to address critical…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 99 contacts → | ||||
Partial evidence “Our mission is to protect wildlife and vital habitats from the illegal wildlife trade, the effects of climate change, and more.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 88 contacts → | ||||
Indirect evidence “At The Wilds, our mission is simple but powerful: Empowering People.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 84 contacts → | ||||
Strong evidence “Fossil Rim Wildlife Center is dedicated to the conservation of species in peril, conducting scientific research, training of professionals.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Partial evidence “The Zoological Society of Milwaukee's mission is to conserve wildlife and endangered species, educate people about the importance of wildlife and the environment, and support the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 71 contacts → | ||||
Partial evidence “Manomet is a science-driven conservation organization with deep roots in bird banding.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 70 contacts → | ||||
Indirect evidence “Connecting people, birds, and land Mission: conserving birds and their habitats through science, education, and land stewardship Bird Conservancy of the Rockies conserves birds…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 68 contacts → | ||||
Strong evidence “Founded in 2002, Wildlife Conservation Network (WCN) is dedicated to protecting endangered species and preserving their natural habitats.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 64 contacts → | ||||
Partial evidence “NatureServe, a non-profit organization, provides high-quality scientific expertise for conservation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: wildlife conservation groups. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names wildlife conservation groups.
- Partial evidence
- Its own public description names part of wildlife conservation groups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name wildlife conservation groups. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 531 wildlife conservation groups based in the United States
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Wildlife conservation groups based in the United States at a glance
As of Sep 22, 2026Companies by employee count
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 531 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 wildlife conservation groups, 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 the United States whose own description of what they do matches “wildlife conservation groups”. 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 wildlife conservation groups), 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 wildlife conservation groups, and records with no verified work email. Companies headquartered outside United States 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, 7,984 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.
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 wildlife conservation groups, 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 wildlife conservation groups are there based in the United States?
RevenueBase identified 531 wildlife conservation groups headquartered in the 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?
The Nature Conservancy, headquartered in Arlington, tops this list with the largest team on record.
Which city has the most wildlife conservation groups?
New York leads with 16 headquartered companies, followed by Washington (13) and Portland (8).
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 7,984 verified decision-maker contacts tracked across these 531 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.
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