Environmental Non-Profit Organizations


Here's our list of the largest, most respected, and most influential Environmental Non-profit Organizations. Browse their job postings and internships, and apply!

You can also browse our directory of over 100 green non-profits and green trade associations.

Conservation International is committed to helping societies adopt a more sustainable approach to development – one that considers and values nature at every turn.


Conservation Law Foundation (CLF) is a nonprofit, member-supported organization that works in four program areas: Clean Energy and Climate Change, Clean Water and Healthy Forests, Ocean Conservation and Healthy Communities and Environmental Justice.


Earthjustice is a non-profit public interest law firm dedicated to protecting the magnificent places, natural resources, and wildlife of this earth, and to defending the right of all people to a healthy environment.


Stabilizing the Earth's climate is the critical environmental challenge. We use national, regional and global approaches to preserve life and prosperity.


Green Non-Profit profile: Natural Resources Defense Council (NRDC) 
NRDC's mission is to safeguard the Earth: its people, its plants and animals and the natural systems on which all life depends.


Green Non-Profit profile: National Audubon Society 
Audubon’s mission is to conserve and restore natural ecosystems, focusing on birds, other wildlife, and their habitats for the benefit of humanity and the earth's biological diversity.

Green Non-Profit profile: National Wildlife Federation (NWF)
National Wildlife Federation is a voice for wildlife, dedicated to protecting wildlife and habitat and inspiring the future generation of conservationists.


Green Non-Profit profile: The Nature Conservancy
The Nature Conservancy is the leading conservation organization working around the world to protect ecologically important lands and waters for nature and people.


Green Non-Profit profile: Pew Charitable Trusts - Environmental InitiativesThe aim of Pew’s environmental initiatives is to strengthen policies and practices in ways that produce significant and measurable protection for terrestrial and marine systems worldwide.


Green Non-Profit profile: Rainforest Alliance
The Rainforest Alliance works to conserve biodiversity and ensure sustainable livelihoods by transforming land-use practices, business practices and consumer behavior.


Sierra Club Logo 
The Sierra Club is the oldest, largest, and most influential grassroots environmental organization in the United States.


The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world.


The Wildlife Conservation Society (WCS), founded in 1895, saves wildlife and wild places worldwide through science, conservation action, education, and inspiring people to value nature.


WRI is an environmental think tank that goes beyond research to find practical ways to protect the earth and improve people’s lives.


WWF is the world’s leading conservation organization, and has been protecting the future of nature for more than 45 years.


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