Founded in 1961, the World Wildlife Fund (WWF) is one of the world's leading conservation organizations dedicated to preserving the world's most vulnerable ecosystems and species. With its headquarters in Washington DC, WWF employs over 6,000 full-time staff in more than 100 countries as of 2023. The organization operates on a global scale, focusing on issues from climate change to wildlife trafficking. In 2022, WWF reported a global income of $800 million, with funds sourced primarily from individuals and grant-making institutions.