| DAIRY FARMERS OF AMERICA, INC. POLITICAL ACTION COMMITTEE; AKA DFA-PAC | $73K | 25 | 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2016 |
| AMEREN CORPORATION FEDERAL POLITICAL ACTION COMMITTEE (AMEREN FEDPAC) | $72K | 36 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $67K | 26 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $65K | 20 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $61K | 28 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| OWNER-OPERATOR INDEPENDENT DRIVERS ASSN INC POLITICAL ACTION COMMITTEE (AKA OOIDA-PAC) | $55K | 30 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| ENTERPRISE HOLDINGS, INC. / ENTERPRISE MOBILITY POLITICAL ACTION COMMITTEE | $53K | 27 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| ASSOCIATED BUILDERS AND CONTRACTORS, INC. POLITICAL ACTION COMMITTEE (ABC PAC) | $53K | 13 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $52K | 18 | 1998, 2000, 2002, 2004, 2006, 2008 |
| WALMART INC. PAC FOR RESPONSIBLE GOVERNMENT | $52K | 16 | 1996, 2000, 2002, 2004, 2006, 2008 |