Largest Environment Charities 2026

Discover the the biggest environment organizations by annual revenue.

87

The Charities Aid Foundation

United Kingdom

Charity No: 268369 · · Environment

76

Nature Conservancy

United States

EIN: 530242652 · Arlington, VA · Environment

76

New Venture Fund

United States

EIN: 205806345 · Washington, DC · Environment

77

Center for Sustainable Energy

United States

EIN: 330936366 · San Diego, CA · Environment

57

Container Exchange (QLD) Limited

Australia

Reg: 90622570209 · Brisbane, Qld · Environment

79

Calstart Inc

United States

EIN: 954375022 · Pasadena, CA · Environment

73

World Wildlife Fund Inc

United States

EIN: 521693387 · Washington, DC · Environment

79

The Conservation Fund a Nonprofit Corporation

United States

EIN: 521388917 · Reg: 52-1388917 · Arlington, VA · Environment

84

Conservation International Foundation

United States

EIN: 521497470 · Arlington, VA · Environment

76

Windward Fund

United States

EIN: 473522162 · Washington, DC · Environment

74

Environmental Defense Fund Incorporated

United States

EIN: 116107128 · New York, NY · Environment

79

National Park Foundation

United States

EIN: 521086761 · Washington, DC · Environment

69

Natural Resources Defense Council Inc

United States

EIN: 132654926 · New York, NY · Environment

79

Iso New England Inc

United States

EIN: 043372500 · Holyoke, MA · Environment

77

Energy Trust of Oregon Inc

United States

EIN: 931313663 · Portland, OR · Environment

69

Rockefeller Foundation

United States

EIN: 131659629 · New York, NY · Environment

66

Iniciativa Climatica De Mexico, Ac

Mexico

Reg: ICM160118IZ1 · Ciudad de México · Environment

76

Waterways Infrastructure Trust

United Kingdom

Charity No: 1146792 · · Environment

71

Quadrature Climate Foundation

United Kingdom

Charity No: 1187301 · Reg: 1187301 · · Environment

63

Ducks Unlimited Inc

United States

EIN: 135643799 · Memphis, TN · Environment

70

Climate Imperative Foundation

United States

EIN: 845024713 · San Francisco, CA · Environment

76

Singing River Gulfport

United States

EIN: 851538878 · Gautier, MS · Environment

37

Wa Return Recycle Renew Ltd

Australia

Reg: 43629983615 · Subiaco, WA · Environment

37

Brightwater Care Group Limited

Australia

Reg: 23445460050 · Inglewood, WA · Environment

36

Global Environment Facility

Ghana

Reg: GH-IATI-XI-BRIDGE-6385676864 · · Environment

60

Vereniging tot Behoud van Natuurmonumenten in Nederland

Netherlands

Reg: 002565237 · Amersfoort · Environment

79

National Audubon Society Inc

United States

EIN: 131624102 · New York, NY · Environment

44

החברה להגנת הטבע (ע~ר)

Israel

Reg: IL-580017499 · תל אביב - יפו · Environment

68

Ecoce, Ac

Mexico

Reg: ECO020607K9A · Ciudad de México · Environment

69

Pronatura Mexico, Ac

Mexico

Reg: PME901002A23 · Ciudad de México · Environment

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Environmental Charities

Environmental charities protect natural resources, combat climate change, preserve biodiversity, and promote sustainable practices. These organizations range from local conservation groups to global advocacy networks. Their work includes wildlife protection, ocean conservation, reforestation, clean energy advocacy, and environmental education.

GiveRadar indexes environmental nonprofits globally with financial data and trust scores. Search and filter to discover environmental organizations by country, size, and impact area.