| DCCC | $588K | 43 | 2010, 2006, 2004, 2008 |
| NRCC | $483K | 16 | 2006, 2008 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $215K | 10 | 2010, 2006, 2008 |
| LEAGUE OF CONSERVATION VOTERS INC | $112K | 275 | 2010 |
| NEW HAMPSHIRE DEMOCRATIC PARTY | $67K | 13 | 2006 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $32K | 9 | 2010, 2006, 2004, 2008 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $30K | 6 | 2006, 2004, 2008 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $25K | 14 | 2010, 2006, 2004, 2008 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $25K | 5 | 2006, 2004, 2008 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $23K | 7 | 2006, 2004, 2008 |