| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $43K | 17 | 2010, 2002, 2006, 2004, 2008 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $36K | 20 | 2010, 2002, 2006, 2004, 2008 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $34K | 19 | 2010, 2002, 2006, 2004, 2008 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $30K | 7 | 2002, 2006, 2004, 2008 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $26K | 12 | 2010, 2002, 2006, 2004, 2008 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $25K | 6 | 2002, 2004, 2008 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $24K | 16 | 2010, 2002, 2006, 2004, 2008 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $22K | 9 | 2010, 2002, 2006, 2004, 2008 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $20K | 4 | 2010, 2002, 2008 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $20K | 6 | 2010, 2002, 2004, 2008 |