| 2024 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2024 | David M Leuschen Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | David M Leuschen Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2023 | The Montana Land Reliance | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Buffalo Bill Memorial Association | 990 | Trustee (Until Aug 2023) | 0 | $0 | $0 | View return |
| 2022 | The Montana Land Reliance | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | David M Leuschen Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Buffalo Bill Memorial Association | 990 | Trustee | 0 | $0 | $0 | View return |
| 2022 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Alexia Mleuschen Charitable Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Montana Land Reliance | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Buffalo Bill Memorial Association | 990 | Trustee | 0.2 | $0 | $0 | View return |
| 2021 | David M Leuschen Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Alexia Mleuschen Charitable Foundation | 990PF | Trustee/Part-Time | 0 | $0 | $0 | View return |
| 2020 | The Montana Land Reliance | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Buffalo Bill Memorial Association | 990 | Trustee | 0.2 | $0 | $0 | View return |
| 2020 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | David M Leuschen Foundation | 990PF | Trustee/Part-Time | 0 | $0 | $0 | View return |
| 2020 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2019 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2019 | The Ocean Conservation Project Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Alexia Mleuschen Charitable Foundation | 990PF | Trustee/Part-Time | 0 | $0 | $0 | View return |
| 2019 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | David M Leuschen Foundation | 990PF | Trustee/Part-Time | 0 | $0 | $0 | View return |
| 2018 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2018 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2018 | Conservation International Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2016 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2015 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | Buffalo Bill Memorial Association | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2014 | Buffalo Bill Memorial Association | 990 | Trustee | 0.4 | $0 | $0 | View return |
| 2014 | United States Olympic and Paralympic | 990 | Director | 0.5 | $0 | $0 | View return |
| 2013 | Buffalo Bill Memorial Association | 990 | Trustee | 0.4 | $0 | $0 | View return |