| NRCC | $270K | 50 | 2006, 2008 |
| NATIONAL ASSOCIATION OF REALTORS | $57K | 1 | 2006 |
| AUTOMOTIVE FREE INTERNATIONAL TRADE PAC | $55K | 11 | 2010, 2014, 2006, 2012, 2008 |
| DELOITTE POLITICAL ACTION COMMITTEE | $51K | 22 | 2010, 2014, 2006, 2012, 2008 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $50K | 14 | 2010, 2014, 2006, 2012, 2008 |
| AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS POLITICAL ACTION COMMITTEE | $50K | 24 | 2010, 2014, 2006, 2012, 2008 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $46K | 22 | 2010, 2014, 2006, 2012, 2008 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $45K | 24 | 2010, 2006, 2012, 2008 |
| PRICEWATERHOUSECOOPERS POLITICAL ACTION COMMITTEE I | $44K | 24 | 2010, 2014, 2006, 2012, 2008 |
| ERNST & YOUNG POLITICAL ACTION COMMITTEE | $42K | 19 | 2010, 2014, 2006, 2012, 2008 |