| INDEPENDENCE USA PAC | $296K | 4 | 2012 |
| AMERICAN SOCIETY OF ANESTHESIOLOGISTS POLITICAL ACTION COMMITTEE (ASA PAC) | $107K | 47 | 2010, 2002, 2006, 2004, 2012, 2008, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $93K | 49 | 2010, 2002, 1996, 2014, 2006, 1998, 2004, 2012, 2018, 2008, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $78K | 19 | 2010, 2002, 2014, 2006, 2004, 2012, 2008, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $77K | 54 | 2010, 2002, 2006, 2004, 2012, 2008, 2000 |
| FAMILIES FIRST CALIFORNIA | $72K | 24 | 2010, 2008 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $72K | 42 | 2010, 2002, 2006, 2004, 2012, 2008, 2000 |
| AMERICAN VOTER INSTITUTE | $70K | 6 | 2012 |
| CALIFORNIA DEMOCRATIC PARTY | $70K | 8 | 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $69K | 35 | 2010, 2002, 2006, 2004, 2012, 2008, 2000 |