| 2024 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2024 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2024 | The Brandenburg Family Foundation C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | The Brandenburg Family Foundation C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2022 | The Brandenburg Family Foundation C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2022 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | The Brandenburg Family Foundation C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2020 | The Brandenburg Family Foundation C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2019 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2019 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2017 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | President | 0 | $0 | $0 | View return |
| 2017 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2016 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | Director | 0 | $0 | $0 | View return |
| 2015 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | Director | 0 | $0 | $0 | View return |
| 2015 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | The Forgotten International | 990 | Director | 0.5 | $0 | $0 | View return |
| 2014 | The Brandenburg Historical Golf Museum C/O Diane M Brandenburg | 990PF | Director | 0 | $0 | $0 | View return |