* the [[Earhart Foundation]] contributed $120,000 in six grants between 1999 and 2003;
* [[John M. Olin Foundation]] - $730,000 from 15 donations between 1986 and 2001;
* [[Lynde and Harry Bradley Foundation]]- $250,000 nine grants over the period between 1989 and 1995;* Sarah Scaife Foundation, part of the [[Scaife Foundations]] - $760,000 from 9 donations spanning the period between 1991 and 2003;and
* [[Smith Richardson Foundation]] - $416,916 from 3 donations between 1998 and 2001;