The Thunderbirds is a nonprofit organization based in Phoenix, Arizona, dedicated to promoting the city and its metropolitan area through the sponsorship of athletic events and financial support for amateur athletes and youth-oriented charities. With an operating budget of $99.1 million and total revenue of $123.3 million for the filing year 2025, the organization engages in significant fundraising efforts, although it does not rely on any single funder for 50% or more of its revenue. More information can be found on their website at www.wmphoenixopen.com.