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In partnership with the City of New York and the community, the Prospect Park Alliance restores, develops, and operates Prospect Park for the enjoyment of all by caring for the natural environment, preserving historic design, and serving the public through facilities and programs. Prospect Park's 585 acres of meadows, waterfalls, forest, lakes, and athletic facilities comprise a masterwork of urban green space.

Randall's Island Park Alliance (RIPA), formerly known as the Randall's Island Sports Foundation (RISF), was founded in 1992 as a public-private partnership to work on behalf of Randall's Island Park, located in the East River between East Harlem, the South Bronx and Astoria, Queens. RIPA works with the City and local communities to provide an innovative and exciting destination through a wide range of sports venues, cultural events and environmental exploration. As the dedicated steward of Randall’s Island Park, the Alliance sustains, maintains, develops and programs the Park to support the wellbeing of all New Yorkers.

Riverlife seeks to reclaim, restore and promote Pittsburgh's riverfronts as the environmental, recreational, cultural and economic hub of the region.

The Santa Barbara Botanic Garden fosters the conservation of California's native plants through our gardens, education, and research, and serves as a role model of sustainable practices.

Wave Hill is a 28-acre public garden and cultural center in the Bronx overlooking the Hudson River and Palisades. Its mission is to celebrate the artistry and legacy of its gardens and landscapes, to preserve its magnificent views, and to explore human connections to the natural world through programs in horticulture, education and the arts.

We educate and inform people about the world's forests and trees, and their importance to all life, in order to promote a balanced and sustainable future.

Our mission at the Alliance for the Great Lakes is to conserve and restore the world's largest freshwater resource using policy, education and local efforts, ensuring a healthy Great Lakes and clean water for generations of people and wildlife.

The Alliance to Save Energy promotes energy efficiency worldwide to achieve a healthier economy, a cleaner environment and greater energy security.

The mission of the Amazon Conservation Team (ACT) is to work in partnership with indigenous people to conserve biodiversity, improve human and ecosystem health, and strengthen traditional culture in tropical America.

The American Chestnut Foundation has one simple goal: to restore the American chestnut to its native forests. Destroyed by an imported blight many consider the worst environmental disaster of the twentieth century, the American chestnut was virtually eliminated from the eastern hardwood forest between 1904 and 1940. With its loss, wildlife populations plummeted; never to return to former levels. With recent developments in genetics, there is promise that this critically important wildlife food source and timber tree will again become part of our natural heritage. To make this possibility a reality, a group of prominent scientists, in 1983, established the non-profit research-oriented American Chestnut Foundation (TACF). The Foundation's mission is simple: to restore the American chestnut as an integral part of the eastern forest ecosystem. TACF is employing traditional plant breeding techniques, backed by advanced research methods, to develop a blight resistant American chestnut tree. TACF is restoring a species - and in the process, creating a template for restoration of other tree and plant species.

The Anacostia Watershed Society's mission is to protect and restore the Anacostia River and its watershed communities by cleaning the water, recovering the shores, and honoring the heritage. Our ultimate goal is to make the Anacostia River swimmable and fishable, in compliance with the federal Clean Water Act, for all to enjoy.

Since 1876 we’ve made it our mission to protect the mountains, forests, waters, and trails you love in the Northeast and Mid-Atlantic regions. We envision a world where our natural resources are healthy, loved, and always protected, and where the outdoors occupies a place of central importance in every person’s life. We encourage you to experience, learn more, and appreciate the outdoors knowing that your participation supports the conservation and stewardship of the natural world around you.