Nonprofit organizations in United States

United States Department of the Interior
United States · Washington
The United States Department of the Interior is a federal executive department responsible for managing most of the country's federal lands and natural...

United States · Reston
The National Wildlife Federation is America's largest and oldest private, nonprofit conservation education and advocacy organization.

United States
The Southern Poverty Law Center, SPLC, is an American nonprofit legal advocacy organization working on civil rights and human rights.

United States · Lincoln
The Arbor Day Foundation is an American nonprofit membership organization dedicated to planting trees around the world.

United States
Environmental Defense Fund, known as EDF, is a nonprofit environmental advocacy group based in New York.

United States
Freedom House is a nonpartisan, nonprofit organization devoted to the support and defense of democracy and freedom worldwide.

International Rescue Committee
United States · New York
The International Rescue Committee, IRC, is a global humanitarian aid, relief and development organization that helps people affected by conflict and...

United States · Arlington
Conservation International is a global organization that works to protect nature for the benefit of people.

United States · Tucson
DarkSky International is a nonprofit working to reduce light pollution and protect the night sky.
United States · Cambridge
The Union of Concerned Scientists is a national nonprofit science advocacy organization in the United States.