| DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE | $49.6M | 670 | 2006, 2004 |
| KERRY VICTORY 2004 | $14.1M | 10 | 2004 |
| MOVEON.ORG POLITICAL ACTION | $10.8M | 53 | 2004 |
| REPUBLICAN NATIONAL COMMITTEE | $9.2M | 17 | 2004 |
| AFL-CIO | $8.8M | 1,418 | 2004 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $5.2M | 22 | 2006, 2004 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $3.6M | 65 | 2006, 2004 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $3.5M | 35 | 2006, 2004 |
| AMERICAN FEDERATION OF STATE, COUNTY AND MUNICIPAL EMPLOYEES, AFL-CIO | $3.3M | 59 | 2004 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $3.2M | 31 | 2004 |