Search Nonprofits

We inspire people to plant, nurture, and celebrate trees. Founded in 1972, the Arbor Day Foundation’s mission is simple: we inspire people to plant, nurture, and celebrate trees. This mission is the driving force behind all of our work in community forestry, large-scale forest restoration, rain forest preservation, disaster recovery, and education. We are proud to be the largest nonprofit conservation organization dedicated to planting trees. The impact we make is possible thanks to more than 1 million members and corporate partners as well as a strong global network of dedicated programmatic partners.

Save the Bay™, and keep it saved, as defined by reaching a 70 on CBF's Health Index. The Chesapeake Bay Foundation's (CBF) mission, simply stated, is to Save the Bay and keep it saved. We define a Saved Bay as having a score of 70 (out of 100) on CBF's State of the Bay health index. Thanks largely to a dramatic reduction in the amount of pollution entering the system, at 70, the Chesapeake Bay and its tributary rivers will be highly productive and in good health as measured by established water-quality standards. The result will be clear water, free of impacts from toxic contaminants, and healthy oxygen levels, able to support living resources in all parts of the Bay.

The Golden Gate National Parks Conservancy (Parks Conservancy) is the nonprofit support partner to the Golden Gate National Parks, created to preserve the parks, enhance the experiences of park visitors, and build a community dedicated to conserving the parks for the future.

For more than 20 years, the Clinton Foundation has transformed philanthropy — running programs that develop leaders and accelerate solutions to the world’s most pressing challenges. Under the leadership of President Clinton, Secretary Clinton, and Chelsea Clinton, our unique approach prioritizes solutions over ideology — bringing people together in the spirit of collaboration and pragmatic problem-solving for a brighter future. Programs founded by the Clinton Foundation since its inception reflect our shared commitment to “putting people first” — the practice of focusing on how a proposed policy, program, or partnership can directly affect a person’s life and make a lasting impact.

The Woods Hole Oceanographic Institution is dedicated to research and education to advance understanding of the ocean and its interaction with the Earth system, and to communicating this understanding for the benefit of society.

Ducks Unlimited conserves, restores and manages wetlands and associated habitats for North America's waterfowl. These habitats also benefit other wildlife and people.

The Access Fund is the national organization that keeps climbing areas open and conserves the climbing environment.

The American Battlefield Trust preserves America’s hallowed battlegrounds and educates the public about what happened there and why it matters. As the nation's leading heritage land preservation organization, we have saved more than 57,000 acres of battlefield land in 24 states to date — thanks to the support of our members & partners.

Santa Monica Mountains Fund (SAMO Fund) is dedicated to the mission of preserving, protecting, and enhancing the Santa Monica Mountains National Recreation Area (SMMNRA). Our mission encompasses a commitment to safeguarding the unique ecosystem of the area, fostering a deep connection between people and nature, and supporting the National Park Service in its endeavors. This includes a focus on youth education, scientific research, improvement of park facilities, community stewardship, and the preservation of indigenous cultural resources. This vision is rooted in the belief that sustainable practices and community engagement are key to preserving the ecological and cultural richness of the Santa Monica Mountains for future generations.

The National Geographic Society was founded in 1888 with a mission to "increase and diffuse geographic knowledge." As one of the world's largest nonprofit scientific and educational organizations, the Society works to inspire people to care about the planet.

To inspire character development and self-discovery in people of all ages and walks of life through challenge and adventure, and to impel them to achieve more than they ever thought possible, to show compassion for others and to actively engage in creating a better world.