| 2025 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Theta Chi Corporation | 990 | Director | - | $0 | $0 | View return |
| 2024 | Assumption Foundation for K-12 Schools | 990 | Director | - | $0 | $0 | View return |
| 2024 | Iowa State University Alumni Association | 990 | Acting CEO - March - June 2025 | 40 | $0 | $0 | View return |
| 2024 | Iowa State University Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2023 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Theta Chi Corporation | 990 | Director | - | $0 | $0 | View return |
| 2022 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2022 | Theta Chi Corporation | 990 | Director | - | $0 | $0 | View return |
| 2022 | Assumption Foundation for K-12 Schools | 990 | Director | - | $0 | $0 | View return |
| 2021 | Theta Chi Corporation | 990 | Director | - | $0 | $0 | View return |
| 2021 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2020 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2020 | Great Plains Federal Tax Institute Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2020 | St Ambrose University | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2019 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Great Plains Federal Tax Institute Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2019 | St Ambrose University | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Great Plains Federal Tax Institute Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2018 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Boys & Girls Clubs of the Midlands | 990 | Director | 5 | $0 | $0 | View return |
| 2018 | Iowa State University Alumni Association | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | St Ambrose University | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Walter W & Frances M Key Charitable Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2017 | Iowa State University Alumni Association | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Great Plains Federal Tax Institute Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2017 | St Ambrose University | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Walter W & Frances M Key Charitable Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2016 | Omaha Estate Planning Council C/O Steve Kenney | 990EZ | Director | 1 | $0 | - | View return |
| 2015 | Omaha Estate Planning Council C/O Steve Kenney | 990EZ | Director | 1 | $0 | - | View return |
| 2014 | Omaha Estate Planning Council C/O Steve Kenney | 990EZ | Director | 1 | $0 | - | View return |
| 2014 | Nebraska Community Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Walter W & Frances M Key Charitable Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2013 | Walter W & Frances M Key Charitable Foundation | 990PF | Co-Trustee | 0 | $0 | $0 | View return |
| 2013 | Omaha Estate Planning Council C/O Steve Kenney | 990EZ | Director | 1 | $0 | - | View return |
| 2013 | Nebraska Community Foundation Inc | 990 | Director | 1 | $0 | $0 | View return |
