| NRCC | $90K | 138 | 1990, 1996, 1994, 1992, 1984, 1988, 2004, 1986, 1982 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $84K | 38 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $78K | 41 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| AMERICAN DENTAL ASSOCIATION POLITICAL ACTION COMMITTEE | $66K | 43 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| NCTA - THE INTERNET & TELEVISION ASSOCIATION POLITICAL ACTION COMMITTEE (NCTAPAC) | $51K | 24 | 2010, 1990, 2002, 1996, 1994, 1992, 1988, 1998, 2004, 1986, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $51K | 38 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| AFLAC POLITICAL ACTION COMMITTEE (AFLAC PAC) | $47K | 26 | 1990, 2002, 1996, 1994, 1992, 1988, 1998, 2004, 1986, 2000 |
| REPUBLICAN NATIONAL COMMITTEE | $44K | 6 | 1994, 1992, 1982 |
| NATIONAL COMMITTEE TO PRESERVE SOCIAL SECURITY & MEDICARE PAC | $43K | 31 | 1990, 2002, 1996, 1994, 1992, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN PODIATRIC MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $41K | 31 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |