| AMERICAN SOCIETY OF ANESTHESIOLOGISTS POLITICAL ACTION COMMITTEE (ASA PAC) | $162K | 53 | 2010, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2012, 2008, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $106K | 49 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2012, 2008, 1986, 2000 |
| AMERICAN PODIATRIC MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $91K | 44 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2012, 2008, 1986, 1982, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $89K | 50 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2012, 2008, 1986, 1982, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $85K | 56 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2012, 2008, 1986, 1982, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $83K | 55 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2012, 2008, 1986, 1982, 2000 |
| AMERICAN PHYSICAL THERAPY ASSOCIATION PHYSICAL THERAPY POLITICAL ACTION COMMITTEE (PT-PAC) | $78K | 60 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2012, 2008, 1986, 2000 |
| AIR LINE PILOTS ASSOCIATION PAC | $76K | 42 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2012, 2008, 1986, 1982, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $73K | 55 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2012, 2008, 1986, 1982, 2000 |
| AMERICAN HEALTH CARE ASSOCIATION POLITICAL ACTION COMMITTEE | $73K | 49 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 2000 |