World Wildlife Fund (WWF)

The World Wildlife Fund is perhaps one of the best-known organizations for the protection of endangered species and their habitats around the world. WWF’s work has evolved from saving species and landscapes to addressing the larger global threats and forces that impact them. To accomplish their ambitious goals, they work to educate and influence people into making sustainable choices and decisions, including those who work in business and make decisions around the use of natural resources, and those who work in government and set policy that impacts nature. Learn More

Earth Justice

Earthjustice is the premier nonprofit environmental law organization. We wield the power of law and the strength of partnership to protect people’s health, to preserve magnificent places and wildlife, to advance clean energy, and to combat climate change. We are here because the earth needs a good lawyer. Learn More

NDRC - Natural Resources Defense Council

NDRC combines the power of more than two million members and online activists with the expertise of some 500 scientists, lawyers, and policy advocates across the globe to ensure the rights of all people to the air, the water, and the wild.

NRDC was founded in 1970 by a group of law students and attorneys at the forefront of the environmental movement. Today's leadership team and board of trustees makes sure the organization continues to work to ensure the rights of all people to clean air, clean water, and healthy communities. Learn More

The Sierra Club

Founded by legendary conservationist John Muir in 1892, the Sierra Club is now the nation's largest and most influential grassroots environmental organization -- with more than two million members and supporters. 

Their successes range from protecting millions of acres of wilderness to helping pass the Clean Air Act, Clean Water Act, and Endangered Species Act. More recently, they've made history by leading the charge to move away from the dirty fossil fuels that cause climate disruption and toward a clean energy economy. Learn More

Friends of the Earth

Friends of the Earth is one of the largest environmental networks, with over 70 national member groups and 5000 local activist groups on all continents. Friends of the Earth USA has been around since 1969 and has supported campaigns in climate change, forests, fair trade, proper use of taxes, and the banning of genetically-modified organisms. They support biodiversity, environmental rights, and repayment of ecological debt by rich countries to those that they have exploited. Learn More

National Audubon Society

If you’re a birdwatcher, then this is the environmental organization for you. The National Audubon Society has been around for years and focuses on the protection of birds and other wildlife. They also try to conserve national ecosystems and habitats so that species won’t become extinct. They publish a magazine and are one of the best-known charities in the USA. Learn More


The largest international organization focused solely on ocean conservation, Oceana focuses on a limited number of highly specific campaigns that can achieve measurable outcomes, like reducing turtle death from scallop fisheries and petitioning retailers to stop selling unsustainable marine animal products. In addition to accepting donations that help them achieve these goals, Oceana enlists a vast team of “e-activists” referred to as “Wavemakers” who send out letters and petitions in support of conservation initiatives. Learn More

National Wildlife Federation

Founded officially in 1937, the National Wildlife Federation strives to protect wildlife at all costs. They protect wolves, salmon, bison, whooping cranes, and more – and they’re always striving to do more. They also have campaigns in global warming and environmental education. In fact, they believe that education is the best way to help the environment – the more you know, the more you can protect the world we live in. Learn More


Green Peace

Green Peace ‘bears witness’ to environmental destruction in a peaceful, non-violent manner. They use non-violent confrontation to raise the level and quality of public debate. In exposing threats to the environment and finding solutions we have no permanent allies or adversaries. We ensure our financial independence from political or commercial interests.” Learn More

The Trust For Public Land

At the Trust for Public Land, They don't just save land—they save land for people to enjoy, from neighborhood parks to national parks. They depend on the ongoing support of individuals to make sure their work carries on well into the future.

Their mission is to create parks and protect land for people, ensuring healthy, livable communities for generations to come. Every park, playground, and public space they create is an open invitation to explore, wonder, discover, and play. They're proud to say that They've been connecting communities to the outdoors—and to each other—since 1972. Today, millions of Americans live within a 10-minute walk of a park or natural area they helped create, and countless more visit every year.

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NPCA - National Parks Conservation Association

Since Their founding in 1919, the National Parks Conservation Association has been the independent, nonpartisan voice working to strengthen and protect America's favorite places.

With more than a million members and supporters beside them, they are the voice of America’s national parks, working to protect and preserve our nation’s most iconic and inspirational places for present and future generations. They celebrate the parks — and work tirelessly to defend them — whether on the ground, in the courtroom or on Capitol Hill.

From Their national headquarters in Washington, D.C., and 27 locations nationwide, they call on their program and policy experts, committed volunteers, staff lobbyists, community organizers and communications specialists to inform and inspire the public and to influence decision makers to ensure that our national parks are well protected.

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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.

They address the most pressing conservation threats at the largest scale. Thanks to the support of their more than 1 million members, they’ve built a tremendous record of success since their founding in 1951:

  • They've protected more than 119 million acres of land and thousands of miles of rivers worldwide — and they operate more than 100 marine conservation projects globally.
  • They are impacting conservation in more than 70 countries — protecting habitats from grasslands to coral reefs, from Australia to Alaska to Zambia. See where they work.
  • They address threats to conservation involving climate change, fresh water, oceans, and conservation lands. Learn how they're responding.

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Environmental Defence Fund

They’re one of the world’s largest environmental organizations, with more than two million members and a staff of 550 scientists, economists, policy experts, and other professionals around the world.

They believe prosperity and environmental stewardship must go hand in hand. They’re optimists, because they have seen their ideas make a huge difference and they build strong partnerships across interests to ensure lasting success. See more on their mission and values.

Their focus: They achieve results by finding solutions that benefit people while protecting natural systems.

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350* is building a global grassroots climate movement that can hold our leaders accountable to the realities of science and the principles of justice.

That movement is rising from the bottom up all over the world, and is uniting to create the solutions that will ensure a better future for all. Their online campaigns, grassroots organizing, and mass public actions bring together a global network active in over 188 countries

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League of Conservation Voters

The League of Conservation Voters (LCV) works to turn environmental values into national, state and local priorities. LCV, in collaboration with their state LCV partners, advocates for sound environmental laws and policies, holds elected officials accountable for their votes and actions, and elects pro-environment candidates who will champion their priority issues.

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Conservation International

​​​​​​​​​​​​​​​​For nearly 30 years, Conservation International (CI) has been protecting nature for the benefit of all​. They know that human beings are totally dependent on nature — and that by saving nature, they’re saving humankind. 

To that end, CI is helping to build a healthier, more prosperous and more productive planet. They do this through science, policy, and partnerships with countries, communities and companies. They employ more than 1,000 people and work with more than 2,000 partners in 30 countries. 

Over the years, CI has helped support 1,200 protected areas and interventions across 77 countries, safeguarding more than 601 million hectares of land, marine and coastal areas.​​

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Defenders of Wildlife

Founded in 1947, Defenders of Wildlife is a major national conservation organization focused solely on wildlife and habitat conservation and the safeguarding of biodiversity. They believe in the inherent value of wildlife and the natural world, and this singular focus defines our important niche in the environmental and conservation community and serves as the anchor for their organizational values.

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