| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $3.3M | 47 | 2010 |
| SERVICE EMPLOYEES INTERNATIONAL UNION | $2.2M | 1 | 2010 |
| WORKING AMERICA | $914K | 3,443 | 2010 |
| COMMUNICATIONS WORKERS OF AMERICA | $701K | 4 | 2010 |
| ARKANSANS FOR COMMON SENSE | $446K | 6 | 2010 |
| AFSCME WORKING FAMILIES FUND | $248K | 3 | 2010 |
| AMERICAN FEDERATION OF STATE, COUNTY AND MUNICIPAL EMPLOYEES, AFL-CIO | $145K | 9 | 2010 |
| AFL-CIO | $53K | 23 | 2010 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION WORKING FAMILIES ADVOCACY PROJECT | $43K | 20 | 2010 |
| AFL-CIO COMMITTEE ON POLITICAL EDUCATION TREASURY ACCOUNT | $34K | 16 | 2010 |