https://en.wikipedia.org/wiki/List_of_wealthiest_charitable_foundations
The Bill & Melinda Gates Foundation (BMGF), a merging of the William H. Gates Foundation and the Gates Learning Foundation,[5] is an American private foundation founded by Bill Gates and Melinda French Gates. Based in Seattle, Washington, it was launched in 2000 and is reported as of 2020 to be the second largest charitable foundation in the world,
https://en.wikipedia.org/wiki/Bill_%26_Melinda_Gates_Foundation