| DCCC | $442K | 43 | 2010, 2006, 2020, 2012, 2018, 2008 |
| ENGINEERS POLITICAL EDUCATION COMMITTEE (EPEC)/INTERNATIONAL UNION OF OPERATING ENGINEERS | $75K | 23 | 2010, 2014, 2006, 2020, 2016, 2012, 2018, 2008 |
| HONEYWELL INTERNATIONAL POLITICAL ACTION COMMITTEE | $66K | 37 | 2010, 2014, 2006, 2020, 2016, 2012, 2018, 2022, 2008 |
| NATIONAL ASSOCIATION OF CONVENIENCE STORES POLITICAL ACTION COMMITTEE | $65K | 16 | 2010, 2014, 2020, 2016, 2012, 2018, 2022, 2008 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $65K | 15 | 2010, 2014, 2006, 2020, 2016, 2012, 2018, 2022, 2008 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $63K | 29 | 2010, 2014, 2020, 2016, 2012, 2018, 2008 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $61K | 27 | 2010, 2014, 2006, 2020, 2016, 2012, 2018, 2008 |
| THE HOME DEPOT INC. POLITICAL ACTION COMMITTEE | $60K | 20 | 2010, 2014, 2020, 2016, 2012, 2018, 2022 |
| NATIONAL COMMUNITY PHARMACISTS ASSOCIATION - PAC | $60K | 28 | 2010, 2014, 2020, 2016, 2012, 2018, 2022, 2008 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $59K | 15 | 2010, 2014, 2006, 2016, 2012, 2018, 2008 |