| DEMOCRATIC STATE CENTRAL COMMITTEE OF MARYLAND | $281K | 37 | 2010, 1996, 1994, 2014, 2020, 1998, 2016, 2018, 2022, 1982, 2000 |
| NATIONAL ASSOCIATION OF LETTER CARRIERS OF U.S.A. POLITICAL FUND (LETTER CARRIER POLITICAL FUND) | $203K | 72 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $198K | 85 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $187K | 73 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $185K | 99 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| NATIONAL ACTIVE AND RETIRED FEDERAL EMPLOYEES ASSOCIATION POLITICAL ACTION COM (NARFE-PAC) | $184K | 77 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $183K | 74 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| AMERICAN DENTAL ASSOCIATION POLITICAL ACTION COMMITTEE | $183K | 74 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| AMERICAN HOSPITAL ASSOCIATION PAC | $171K | 90 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $170K | 83 | 2010, 1990, 2002, 1996, 2024, 1994, 2014, 2006, 1992, 1984, 2020, 1988, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 1986, 1982, 2000 |