| NRCC | $156K | 15 | 2010, 2006, 2004, 2008 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $85K | 46 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| UNION PACIFIC CORP. FUND FOR EFFECTIVE GOVERNMENT | $71K | 43 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $71K | 34 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| REPUBLICAN GOVERNANCE GROUP/TUESDAY GROUP PAC | $65K | 34 | 2010, 2014, 2020, 2016, 2012, 2018, 2022 |
| NATIONAL BEER WHOLESALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $63K | 26 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| AFLAC POLITICAL ACTION COMMITTEE (AFLAC PAC) | $55K | 34 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $54K | 41 | 2010, 2014, 2006, 2020, 2016, 2012, 2018, 2022, 2008 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $52K | 29 | 2010, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2008 |
| NELNET INC PAC (NELNET PAC) | $50K | 20 | 2006, 2020, 2016, 2004, 2018, 2022, 2008 |