The Foundation for Economic Education. (Founded by Leonard Read, I think Dr. Paul was on their board in the early years, not sure about that so don't quote me on it. I know he was personal friends with Read, he mentioned that at the Houston Mises Circle in March of last year.)
Future of Freedom Foundation. (Founded by Jacob Hornberger, this is the group that had the recent conference where Ron spoke, there's been a vid link here of that speech.)