Company lists · Data refreshed November 2026

Top 25 Nature preserve organizations worldwide

RevenueBase identified 3,074 company matches for nature preserve organizations worldwide as of November 2026 and tracks 81,012 professional contacts across them, including 23,691 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for nature preserve organizations worldwide, 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. Country and city lists for nature preserve organizations follow the table.

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
3,074Companies
81,012Contacts tracked
23,691Verified emails
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The 25 largest nature preserve organizations worldwide

Ranked by team size
Top 25 of 3,074 company matches for nature preserve organizations worldwide, 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 matchArlington, NC, United StatesHQ recorded Nov 6, 20265,001-10,0006,991 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGland, SwitzerlandHQ recorded Nov 6, 20261,001-5,0003,922 contacts →

Exact match

“Nature is our life-support system.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBronx, NY, United StatesHQ recorded Nov 6, 20261,001-5,0003,872 contacts →

Exact match

“WCS stands for wildlife and wild places.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSandy, United StatesHQ recorded Nov 6, 20261,001-5,0002,109 contacts →

Exact match

“Passionate about nature, dedicated to saving it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 2026501-1,0001,064 contacts →

Exact match

“Natuurmonumenten is de vereniging voor mensen met hart voor de natuur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000999 contacts →

Exact match

“As the original science-driven conservation organisation, we’re working to restore wildlife in the UK and around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSingaporeHQ recorded Nov 6, 20261,001-5,000968 contacts →

Exact match

“Mandai Wildlife Group is dedicated to caring for the planet and protecting animals and nature.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew York, DC, United StatesHQ recorded Nov 6, 2026501-1,000953 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261,001-5,000767 contacts →

Exact match

“As a world leading conservation and hospitality company, we are the proud custodians of our planet's most significant wild places, each chosen to be part of our Collection for a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBryanston, South AfricaHQ recorded Nov 6, 20261,001-5,000695 contacts →

Exact match

“African Parks is a non-profit conservation organisation that takes on responsibility for the long-term management of protected areas in partnership with governments and local…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchReston, VA, United StatesHQ recorded Nov 6, 2026201-500622 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKenyaHQ recorded Nov 6, 2026201-500609 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchToronto, ON, CanadaHQ recorded Nov 6, 2026201-500583 contacts →

Exact match

“Canada’s leading land conservation organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLincoln, MA, United StatesHQ recorded Nov 6, 2026201-500575 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchParkville, United StatesHQ recorded Nov 6, 2026501-1,000548 contacts →

Exact match

“Zoos Victoria operates four world-class zoos: Melbourne Zoo, Healesville Sanctuary, Werribee Open Range Zoo and Kyabram Fauna Park.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMosman, AustraliaHQ recorded Nov 6, 2026501-1,000542 contacts →

Exact match

“Taronga Conservation Society Australia is a not-for-profit organisation that is committed to securing a future for wildlife.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500506 contacts →

Exact match

“Vision We envision a world where wildlife and humans flourish together.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500482 contacts →

Exact match

“Our Mission The Houston Zoo connects communities with animals, inspiring action to save wildlife.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNew Orleans, LA, United StatesHQ recorded Nov 6, 2026201-500438 contacts →

Exact match

“Audubon Nature Institute is a unique private, not-for-profit organization with an expansive collection of world-class attractions, conservation programs, facilities and wilderness…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Nov 6, 2026201-500430 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRoyal Oak, MI, United StatesHQ recorded Nov 6, 2026201-500389 contacts →

Exact match

“The Detroit Zoological Society (DZS) is a nonprofit organization that operates the Detroit Zoo in Royal Oak, Mich.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRochefort, FranceHQ recorded Nov 6, 2026201-500386 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMechelen, BelgiumHQ recorded Nov 6, 2026201-500368 contacts →

Exact match

“Natuurpunt is a volunteer organization that protects vulnerable and threatened nature in Flanders.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFrankfurt, GermanyHQ recorded Nov 6, 20261,001-5,000352 contacts →

Exact match

“The Frankfurt Zoological Society (FZS) was established in 1858 and is an internationally operating conservation organisation based in Frankfurt/Main.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCambridge, United KingdomHQ recorded Nov 6, 202651-200341 contacts →

Exact match

“We’re BirdLife International, the only global Partnership conserving birds and all life on our planet.”

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

Showing 25 of 3,074 nature preserve organizations worldwide

See the full list, filter by size, metro and specialty, and access 23,691 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nature preserve organizations worldwide at a glance

As of Nov 6, 2026
29.2%Verified-email coverage
26.4Average contacts per company
1-10Median size (employees)
0.5%Largest-city concentration · Washington
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,822
11-50
838
51-200
238
201-500
71
501-1,000
20
1,001-5,000
18
5,001-10,000
6
10001+
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for nature preserve organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “nature preserve 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. 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 23,691 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.

Nature preserve organizations by location

12 lists · largest first

Every Nature preserve organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “nature preserve organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nature preserve organizations are there worldwide?

RevenueBase identified 3,074 company matches for nature preserve organizations worldwide 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?

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

Which country has the most nature preserve organizations?

The United States leads with 1,244 companies, followed by France (212) and Canada (118). Every nature preserve organizations list by country and city is linked on this page.

Which city has the most nature preserve organizations?

Washington leads with 15 company records, followed by Toronto (12) and London (10).

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 23,691 professional contacts with verified work emails tracked across these 3,074 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.