| 2024 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2024 | Zimmerman Family Foundation | 990PF | Director | 0.1 | $0 | $0 | View return |
| 2023 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2023 | Zimmerman Family Foundation | 990PF | Director | 0.1 | $0 | $0 | View return |
| 2022 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2022 | Zimmerman Family Foundation | 990PF | Director | 0.1 | $0 | $0 | View return |
| 2021 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2021 | Zimmerman Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2020 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2020 | Zimmerman Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2019 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2019 | Zimmerman Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2018 | The William Zimmerman Foundation | 990PF | Director | 3 | $30,000 | $0 | View return |
| 2018 | Zimmerman Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2017 | The William Zimmerman Foundation | 990PF | Director | 3 | $32,500 | $0 | View return |
| 2017 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2016 | The William Zimmerman Foundation | 990PF | Director | 3 | $27,500 | $0 | View return |
| 2016 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2015 | The William Zimmerman Foundation | 990PF | Director | 3 | $30,000 | $0 | View return |
| 2015 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2014 | The William Zimmerman Foundation | 990PF | Director | 3 | $32,500 | $0 | View return |
| 2014 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2013 | The William Zimmerman Foundation | 990PF | Director | 3 | $27,500 | $0 | View return |
| 2013 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2012 | The William Zimmerman Foundation | 990PF | Director | 3 | $32,500 | $0 | View return |
| 2012 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2011 | The William Zimmerman Foundation | 990PF | Director | 3 | $30,000 | $0 | View return |
| 2011 | Zimmerman Family Foundation | 990PF | Director | 0.02 | $0 | $0 | View return |
| 2010 | The William Zimmerman Foundation | 990PF | Director | 2 | $30,000 | $0 | View return |
| 2010 | Zimmerman Family Foundation | 990PF | Director | 0 | $0 | $0 | View return |