Mother Jones is published by The Foundation for National Progress.

The MacArthur Foundation awarded the Foundation for National Progress nearly $2,000,000 between 1998 and 2017. In 1998, the Foundation was awarded $35,000 “to support an initiative on arms issues through the Internet-based version of the magazine.” [10] In 2014, the Foundation was awarded $300,000 to support general operations because of the “high quality of journalism” displayed in Mother Jones. [11] In 2016, the Foundation for National Progress was gifted $1,500,000,[12]and, most recently, in 2017, the Media Consortium was awarded an additional $15,000. [13]

Other major contributors include the Quixote Foundation, Silicon Valley Community Foundation, Kresge Foundation, Marisla Foundation, and Ford Foundation.

SOROS is there a a donor too - haven't find him yet.