- roles
- connections
| Group | Group Type | Years | Title | Compensation |
|---|---|---|---|---|
 Charles G. Koch Charitable Foundation |
Foundation | 1999-2000 | ||
| Charles G. Koch Charitable Foundation | Foundation | 1999 | President | |
| Charles G. Koch Charitable Foundation | Foundation | 2000 | President | |
| Claude R. Lambe Charitable Foundation |
Foundation | 2000 | ||
| Claude R. Lambe Charitable Foundation | Foundation | 2000 | President | |
| Tax Foundation |
Foundation | 2002-2008 | ||
| Tax Foundation | Foundation | 2002 | Chairman | |
| Tax Foundation | Foundation | 2003 | Chairman | |
| Tax Foundation | Foundation | 2004 | Chairman | |
| Tax Foundation | Foundation | 2005 | Chairman | |
| Tax Foundation | Foundation | 2006 | Chairman | |
| Tax Foundation | Foundation | 2007 | Chairman | |
| Tax Foundation | Foundation | 2008 | Chairman |
