Company lists · Data refreshed September 2026

Top 25 Habitat preservation organizations worldwide

RevenueBase identified 1,035 habitat preservation organizations worldwide as of September 2026 and tracks 25,992 professional contacts across them, including 8,389 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers habitat preservation organizations 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 20, 2026. Country and city lists for habitat preservation organizations 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
1,035Companies
25,992Contacts tracked
8,389Verified emails
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The 25 largest habitat preservation organizations worldwide

Ranked by team size
Top 25 of 1,035 habitat preservation organizations worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to habitat preservation organizations: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceArlington, VA, United StatesHQ checked Sep 20, 20265,001-10,0006,526 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceGland, SwitzerlandHQ checked Sep 20, 20261,001-5,0003,763 contacts →

Indirect evidence

“Nature is our life-support system.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceSandy, United StatesHQ checked Sep 20, 20261,001-5,0001,969 contacts →

Indirect evidence

“Passionate about nature, dedicated to saving it.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000942 contacts →

Indirect evidence

“NRDC is the nation's most effective environmental action organization.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceReston, VA, United StatesHQ checked Sep 20, 2026201-500585 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 20, 2026
6Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 2026201-500559 contacts →

Indirect evidence

“Canada’s leading land conservation organization.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceLincoln, MA, United StatesHQ checked Sep 20, 2026201-500554 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 20, 202651-200230 contacts →

Indirect evidence

“Yayasan Konservasi Alam Nusantara (YKAN) adalah organisasi nirlaba berbasis ilmiah yang hadir di Indonesia sejak 2014.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceTucson, AZ, United StatesHQ checked Sep 20, 202651-200219 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 20, 2026
10Indirect evidenceCali, ColombiaHQ checked Sep 20, 202651-200217 contacts →

Indirect evidence

“WWF's Mission Statement To stop the degradation of the planet's natural environment and to build a future in which humans live in harmony with nature, by- conserving the world's…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceSubiaco, AustraliaHQ checked Sep 20, 2026201-500214 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 20, 2026
12Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 202651-200202 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 20, 2026
13Indirect evidenceSolna, SwedenHQ checked Sep 20, 202651-200188 contacts →

Indirect evidence

“Världsnaturfonden WWF kämpar för att skydda de mest hotade och unika arterna och livsmiljöerna på planeten.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidencePetaluma, CA, United StatesHQ checked Sep 20, 202651-200160 contacts →

Indirect 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 20, 2026
15Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200142 contacts →

Indirect evidence

“Founded in 1967, World Wildlife Fund Canada is the country’s largest international conservation organization, with the active support of hundreds of thousands of Canadians.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202651-200124 contacts →

Indirect evidence

“London Wildlife Trust champions nature’s recovery in London.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceCoventry, United KingdomHQ checked Sep 20, 202651-200118 contacts →

Partial evidence

“With a legacy of over 30 years, we are a UK leading independent consultancy specialising in the preservation of the natural environment.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceCurdridge, United KingdomHQ checked Sep 20, 202651-200116 contacts →

Indirect evidence

“For over 60 years Hampshire & Isle of Wight Wildlife Trust have protected the wildlife and wild places of Hampshire, the Island and our local seas.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceQuezon City, PhilippinesHQ checked Sep 20, 202651-20099 contacts →

Indirect evidence

“Since it was founded in 1961, WWF has become one of the world's largest and most effective independent organizations dedicated to the conservation of nature.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceNijmegen, NetherlandsHQ checked Sep 20, 202651-20088 contacts →

Indirect evidence

“RAVON is al ruim 35 jaar de onafhankelijke natuurbeschermingsorganisatie zonder winstoogmerk die, tezamen met veel vrijwilligers, inheemse reptielen, amfibieën en vissen en hun…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceCumberland, OH, United StatesHQ checked Sep 20, 202651-20088 contacts →

Indirect evidence

“At The Wilds, our mission is simple but powerful: Empowering People.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceGlen Rose, TX, United StatesHQ checked Sep 20, 202651-20084 contacts →

Indirect 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 20, 2026
23Indirect evidenceCopenhagen, DenmarkHQ checked Sep 20, 202651-20084 contacts →

Indirect evidence

“WWF-Denmark is part of the international WWF Network, the world’s leading, independent conservation organisation.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBrussels, BelgiumHQ checked Sep 20, 202611-5080 contacts →

Indirect evidence

“WWF is a global independent organization for nature conservation.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidencePlymouth, United KingdomHQ checked Sep 20, 202651-20071 contacts →

Indirect evidence

“Ocean Conservation with a difference.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 1,035 habitat preservation organizations worldwide

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Habitat preservation organizations worldwide at a glance

As of Sep 20, 2026
32.3%Verified-email coverage
25.1Average contacts per company
1-10Median size (employees)
0.6%Largest-city concentration · Pune
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
633
11-50
274
51-200
80
201-500
26
501-1,000
5
1,001-5,000
3
5,001-10,000
1
10001+
1

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 habitat preservation organizations, 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 habitat preservation organizations are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “habitat preservation organizations”. 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 habitat preservation organizations), 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 habitat preservation organizations, 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, 8,389 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 20, 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.

Habitat preservation organizations by location

7 lists · largest first

Every Habitat preservation 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 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 habitat preservation organizations, 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 habitat preservation organizations are there worldwide?

RevenueBase identified 1,035 habitat preservation organizations 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 habitat preservation organizations?

The United States leads with 376 companies, followed by France (60) and India (54). Every habitat preservation organizations list by country and city is linked on this page.

Which city has the most habitat preservation organizations?

Pune leads with 6 headquartered companies, followed by Washington (6) and Durham (5).

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 8,389 verified decision-maker contacts tracked across these 1,035 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 20, 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.