| CMS ENERGY CORPORATION EMPLOYEES FOR BETTER GOVERNMENT- FEDERAL | $57K | 62 | 2010, 2002, 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| AIRCRAFT OWNERS AND PILOTS ASSOCIATION POLITICAL ACTION COMMITTEE | $39K | 22 | 2010, 2002, 1996, 1994, 2006, 2004, 2008, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $33K | 14 | 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| AMERICA'S CREDIT UNIONS PAC OF CREDIT UNION NATIONAL ASSOCIATION, INC. | $32K | 12 | 2002, 1996, 1994, 2006, 2004, 2008, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $32K | 31 | 2010, 2002, 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| DTE ENERGY COMPANY POLITICAL ACTION COMMITTEE | $29K | 34 | 2010, 2002, 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| AMERICAN DENTAL ASSOCIATION POLITICAL ACTION COMMITTEE | $29K | 24 | 2010, 2002, 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| DELTA AIR LINES PAC | $24K | 21 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $23K | 15 | 2002, 1996, 1994, 1998, 2000 |
| NATIONAL MULTIFAMILY HOUSING COUNCIL POLITICAL ACTION COMMITTEE | $19K | 23 | 2002, 1996, 2006, 1998, 2004, 2008, 2000 |