| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $133K | 55 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $124K | 58 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $124K | 36 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $120K | 34 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $116K | 60 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $115K | 34 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| ENGINEERS POLITICAL EDUCATION COMMITTEE (EPEC)/INTERNATIONAL UNION OF OPERATING ENGINEERS | $112K | 45 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| UNITED STEELWORKERS POLITICAL ACTION FUND | $111K | 31 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $111K | 32 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $108K | 34 | 2010, 2002, 1996, 1994, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |