Company lists · Data refreshed September 2026
Top 25 Endangered species programs worldwide
RevenueBase identified 1,180 endangered species programs worldwide as of September 2026 and tracks 40,384 professional contacts across them, including 10,637 with verified work emails. The United States is the largest market and London the largest hub.
This list covers endangered species programs worldwide, 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 19, 2026. Country and city lists for endangered species programs follow the table.
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 endangered species programs worldwide
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 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,763 contacts → | ||||
Indirect evidence “Nature is our life-support system.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,663 contacts → | ||||
Indirect evidence “WCS stands for wildlife and wild places.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,290 contacts → | ||||
Indirect evidence “Our planet faces many big conservation challenges.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 937 contacts → | ||||
Indirect evidence “As the original science-driven conservation organisation, we’re working to restore wildlife in the UK and around the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 874 contacts → | ||||
Indirect evidence “Mandai Wildlife Group is dedicated to caring for the planet and protecting animals and nature.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 585 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 576 contacts → | ||||
Indirect evidence “Fauna & Flora's work spans across the globe, with over 100 projects in more than 40 countries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 554 contacts → | ||||
Indirect evidence “Mass Audubon is the largest nature-based conservation organization in New England.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 511 contacts → | ||||
Indirect evidence “Zoos Victoria operates four world-class zoos: Melbourne Zoo, Healesville Sanctuary, Werribee Open Range Zoo and Kyabram Fauna Park.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 506 contacts → | ||||
Indirect evidence “Taronga Conservation Society Australia is a not-for-profit organisation that is committed to securing a future for wildlife.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 448 contacts → | ||||
Indirect evidence “Le ZooParc de Beauval n’est pas seulement un lieu d’accueil pour les espèces animales menacées d’extinction dans la nature.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 411 contacts → | ||||
Indirect evidence “We're WWF, the charity working to bring our world back to life.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 352 contacts → | ||||
Indirect evidence “La LPO a pour objet d'agir ou de favoriser les actions en faveur de la nature et de la biodiversité dans les domaines de la connaissance, l’expertise et la recherche; la…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 321 contacts → | ||||
Indirect evidence “The Frankfurt Zoological Society (FZS) was established in 1858 and is an internationally operating conservation organisation based in Frankfurt/Main.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 304 contacts → | ||||
Indirect evidence “Founded in 1929, the Wilder Institute/Calgary Zoo is Canada’s most visited zoo and a cherished family destination for locals and visitors alike.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 295 contacts → | ||||
Indirect evidence “The African Wildlife Foundation, together with the people of Africa, works to ensure the wildlife and wild lands of Africa will endure forever.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 281 contacts → | ||||
Indirect evidence “Somos una organización argentina de alcance internacional cuyo propósito es conservar y restaurar la biodiversidad.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 272 contacts → | ||||
Indirect evidence “Planet Wild is a global community of people who care deeply about nature and want to help our planet bounce back.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 252 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 214 contacts → | ||||
Indirect evidence “Australian Wildlife Conservancy (AWC) is a global leader in conservation, working across iconic Australian locations like the Kimberley, Central Australia, Cape York and Kati…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 207 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 206 contacts → | ||||
Partial evidence “Durrell Wildlife Conservation Trust strives to support endangered animals from extinction.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 202 contacts → | ||||
Indirect evidence “Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities.” Source: RevenueBase Database · checked Sep 19, 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: endangered species programs. 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 endangered species programs.
- Partial evidence
- Its own public description names part of endangered species programs, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name endangered species programs. 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 1,180 endangered species programs worldwide
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Endangered species programs worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 endangered species programs, 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.
- Coverage
- Every country. Country and city lists for endangered species programs are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “endangered species programs”. 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 endangered species programs), 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 endangered species programs, and records with no verified work email.
- 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, 10,637 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 19, 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.
Endangered species programs by location
8 lists · largest firstEvery Endangered species programs list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Endangered species programs based in the United States236
- Endangered species programs based in India78
- Endangered species programs based in the United Kingdom62
- Endangered species programs based in France59
- Endangered species programs based in Germany36
- Endangered species programs based in Australia35
- Endangered species programs based in Canada29
- Endangered species programs based in Brazil28
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 endangered species programs, 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 endangered species programs are there worldwide?
RevenueBase identified 1,180 endangered species programs worldwide 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 country has the most endangered species programs?
The United States leads with 236 companies, followed by India (78) and the United Kingdom (62). Every endangered species programs list by country and city is linked on this page.
Which city has the most endangered species programs?
London leads with 15 headquartered companies, followed by Singapore (10) and Washington (10).
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 10,637 verified decision-maker contacts tracked across these 1,180 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 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 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.