Ecosystem
Funding
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Conservation Funding
Total Revenue
Contributions
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
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1
Nature Conservancy
$1.2B
2
San Diego Zoo Wildlife Alliance
$411.0M
3
World Wildlife Fund Inc
$372.8M
4
World Resources Institute
$357.8M
5
Wildlife Conservation Society
$345.5M
6
Ducks Unlimited Inc
$302.2M
7
Trust For Public Land
$297.4M
8
Environmental Defense Fund Incorporated
$247.1M
9
Conservation International Foundation
$235.1M
10
National Geographic Society
$232.0M
11
Natural Resources Defense Council Inc
$193.1M
12
Sierra Club
$173.4M
13
National Audubon Society Inc
$156.1M
14
Central Park Conservancy Inc
$148.0M
15
Earthjustice
$126.0M
16
National Wildlife Federation
$117.9M
17
Klamath River Renewal Corporation
$104.8M
18
Urban Land Institute
$95.6M
19
Sierra Club Foundation
$89.1M
20
Rainforest Alliance Inc
$85.5M
21
Open Space Institute Land Trust Inc
$74.8M
22
Global Fishing Watch Inc
$69.5M
23
Rewild
$53.3M
24
Wildlife Conservation Network Inc
$52.5M
25
Trustees Of Reservations
$50.5M
26
Ocean Conservancy Inc
$48.6M
27
Napa County Land Trust
$48.1M
28
Oceana Inc
$46.5M
29
Rainforest Trust
$45.5M
30
International Centre For Research In Agroforestry
$44.4M
31
Global Greengrants Fund Inc
$42.6M
32
Palladium Foundation
$41.1M
33
Volgenau Foundation
$40.6M
34
Wilderness Society
$39.2M
35
Panthera Corporation
$38.3M
36
Montana Land Reliance
$37.9M
37
Center For International Forestry Research
$35.9M
38
Defenders Of Wildlife
$35.9M
39
International Fund For Animal Welfare Inc
$35.2M
40
Earth Island Institute Inc
$34.9M
41
Center For Biological Diversity Inc
$34.5M
42
African Wildlife Foundation
$33.7M
43
Chesapeake Bay Foundation Inc
$32.2M
44
Catskill Watershed Corporation
$31.9M
45
Bat Conservation International Inc
$31.9M
46
Rare Inc
$30.9M
47
The Living Desert
$30.6M
48
American Bird Conservancy
$27.9M
49
Jane Goodall Institute For Wildlife Research Education & Conservation
$27.4M
50
Maine Coast Heritage Trust
$26.6M
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1,251 orgs
$8.9B
