| MICROSOFT CORPORATION STAKEHOLDERS VOLUNTARY PAC - MSVPAC | $133K | 54 | 2010, 2002, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| THE BOEING COMPANY POLITICAL ACTION COMMITTEE | $128K | 82 | 2010, 2002, 1996, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $120K | 26 | 2010, 2002, 1996, 2024, 2014, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $119K | 57 | 2010, 2002, 1996, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $109K | 33 | 2010, 1996, 2024, 2014, 2006, 2020, 1998, 2016, 2012, 2018, 2022, 2008, 2000 |
| PUGET SOUND ENERGY INC. PAC FOR GOOD GOVERNMENT | $107K | 86 | 2010, 2002, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $98K | 47 | 2010, 2002, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $96K | 28 | 2010, 2002, 1996, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| ENGINEERS POLITICAL EDUCATION COMMITTEE (EPEC)/INTERNATIONAL UNION OF OPERATING ENGINEERS | $96K | 39 | 2010, 2002, 1996, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |
| HONEYWELL INTERNATIONAL POLITICAL ACTION COMMITTEE | $95K | 42 | 2010, 2002, 2024, 2014, 2006, 2020, 1998, 2016, 2004, 2012, 2018, 2022, 2008, 2000 |