Thomas Dillon

World Wildlife Fund, Inc. protects natural areas and wild populations of plants and animals. It provides programs for protection of endangered species, preservation of ecological systems, and environmental educational policy development. The company was founded in 1961 and is headquartered in Washington, DC.

The Wilderness Society operates as a land conservation organization that is dedicated to protecting natural areas and federal public lands. The company was founded by Robert Sterling Yard, Robert Marshall, Harvey Broome, Harold C. Anderson, Ernest Carl Oberholtzer, Bernard Frank, Benton MacKaye and Aldo Leopold in 1935 and is headquartered in Washington, DC.

The National Parks Conservation Association is a nonpartisan organization that has been working to safeguard national parks since 1919. The non-profit company is based in Washington. With over 1.6 million members and supporters, they aim to protect and preserve the most iconic and inspirational places in the country for future generations. The organization believes in engaging the next generation to ensure the protection of national parks, which is why they launched the Next Generation Advisory Council. The CEO of the American company is Theresa Pierno.