| UNITED STEELWORKERS POLITICAL ACTION FUND | $157K | 35 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $147K | 37 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| INTERNATIONAL ASSOCIATION OF SHEET METAL, AIR, RAIL AND TRANSPORTATION WORKERS POLITICAL ACTION LEAGUE | $146K | 41 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $137K | 43 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $136K | 36 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 1988, 1998, 2016, 2004, 2012, 2008, 1986, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $134K | 43 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| INTERNATIONAL LONGSHOREMEN'S ASSOCIATION COMMITTEE ON POLITICAL EDUCATION | $116K | 38 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $113K | 38 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $100K | 34 | 2010, 1990, 2002, 1996, 1994, 2014, 2006, 1992, 1988, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| INT'L ASSOCIATION OF BRIDGE, STRUCTURAL, ORNAMENTAL AND REINFORCING IRON WORKERS (IPAL) | $100K | 35 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1984, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 1986, 2000 |