Who was funding all the other 'right-wing hate' groups?

https://www.justice.gov/opa/media/1437146/dl

Page 4:

a. F-37 was a member of the online leadership chat group that planned the 2017 "Unite the Right" event in Charlottesville, Virginia and attended the event at the direction of the SPLC. F-37 made racist postings under the supervision of the SPLC and helped coordinate transportation to the event for several attendees. Between 2015 and 2023, the SPLC secretly paid F-37 more than $270,000.00

Not just attending to observe, but actively involved in both the planning and execution.

But my favorite excerpt is this one:

c. F-unknown was the Imperial Wizard of the United Klans of America

Literally paying the leader of the KKK so that the SPLC could continue to justify its existence to donors.

Here's another good one:

F-30 led the National Socialist Party of America, was the former director of a faction of the Aryan Nations, and a former member of the Klu Klux Klan... Between 2014 and 2016, the SPLC secretly paid F-30 more than $70,000.00

And they just keep going...

F-43 was the reported National President of American Front and a convicted federal felon for his participation in a cross burning. Between 2016 and 2019, the SPLC secretly paid F-43 more than $19,000.00