| AMERICAN UNITY PAC INC | $182K | 6 | 2014, 2016, 2012 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $152K | 63 | 2010, 1990, 2002, 1996, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| NRCC | $83K | 468 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2008, 2000 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $79K | 22 | 2010, 2002, 1996, 2014, 2006, 1998, 2016, 2004, 2012, 2008, 2000 |
| HUMAN RIGHTS CAMPAIGN PAC | $65K | 42 | 2010, 2002, 2014, 2006, 2016, 2004, 2012, 2008 |
| NATIONAL ACTION COMMITTEE (NACPAC) | $64K | 32 | 2010, 1990, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $63K | 30 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| AMERICAN MARITIME OFFICERS VOLUNTARY POLITICAL ACTION FUND | $60K | 46 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $56K | 47 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $56K | 70 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |