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The Center for Resilient Cities builds robust and thriving urban communities that are healthy, just, economically viable and environmentally sound. We envision a world of resilient cities filled with clean water, clear air, green landscapes, sustainable and just food systems, and healthy people in economically thriving neighborhoods.

As the official philanthropic and collaborative partner of Grand Canyon National Park, Grand Canyon Conservancy’s mission is to inspire generations of park champions to cherish and support the natural and cultural wonder of Grand Canyon.

We provide knowledge and inspiration, conservation and advocacy, and logistical support for the climbing community.

As the national voice for hikers, American Hiking Society helps preserve and protect the hiking trails and natural areas that hikers cherish and seek for exploration, exercise and education.

Nature Forward (formerly known as the Audubon Naturalist Society) inspires residents of the greater Washington, DC, region to appreciate, understand, and protect their natural environment through outdoor experiences, education, and advocacy.

Friends of Great Smoky Mountains National Park assists the National Park Service in its mission to preserve and protect Great Smoky Mountains National Park by raising funds and public awareness, and providing volunteers for needed projects. Whatever you love about the Smokies, being a Friend helps protect it! With your help, we have raised more than $75 million in support of environmental education, wildlife management, historic preservation, cutting-edge research, trail rehabilitation, and much more in America’s most-visited national park.

To provide collaborative leadership to create and sustain a successful Mill River Park

Through our annual "Denver Digs Trees" program, we distribute and plant more than 1,000 public trees each spring. Many of these trees are planted in Denver's most underserved neighborhoods. Our volunteer "Community Forester" program trains citizens to act as stewards over Denver's urban forest. The Park People manages Denver's Gates Tennis Center -- one of the country's premier public tennis facilities. We also raise private funds for public park projects, including building renovation, landscape projects, and historic preservation of park structures.

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.

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.