| 2024 | Iowa Chapter - Paralyzed Veterans of America | 990 | Director | 3 | $0 | $0 | View return |
| 2023 | The Big Ten Conference Inc | 990 | Former Commissioner | 0 | $3,031,283 | $0 | View return |
| 2023 | Iowa Chapter - Paralyzed Veterans of America | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Big Ten Conference Inc | 990 | Former Commissioner | 0 | $3,031,283 | $0 | View return |
| 2021 | The Big Ten Conference Inc | 990 | Former Commissioner | 0 | $3,040,023 | $0 | View return |
| 2020 | The Big Ten Conference Inc | 990 | Former Commissioner | 0 | $4,679,210 | $0 | View return |
| 2019 | The Big Ten Conference Inc | 990 | Commissioner (Until 6/30/20) | 40 | $5,556,852 | $0 | View return |
| 2019 | Collegiate Officiating Consortium | 990 | Former Director - Big Ten | 1 | $0 | $5,563,512 | View return |
| 2019 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $7,347,452 | $0 | View return |
| 2018 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $7,347,452 | View return |
| 2018 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2017 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $3,778,509 | $0 | View return |
| 2017 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $3,778,509 | View return |
| 2017 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $3,778,509 | View return |
| 2017 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $2,168,209 | $0 | View return |
| 2016 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $2,168,149 | View return |
| 2016 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | Iowa Chapter - Paralyzed Veterans of America | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $2,040,328 | $0 | View return |
| 2015 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $2,040,328 | View return |
| 2015 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $1,947,536 | $0 | View return |
| 2014 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $1,947,536 | View return |
| 2014 | The National Football Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2013 | The Big Ten Conference Inc | 990 | Commissioner | 40 | $3,094,131 | $0 | View return |
| 2013 | Collegiate Officiating Consortium | 990 | Director - Big Ten | 1 | $0 | $3,094,151 | View return |
| 2013 | The National Football Foundation | 990 | Director | - | - | - | View return |