| 2024 | Zimmerman Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2024 | Casper Housing Authority Cares | 990 | Commissioner | 0.25 | $0 | $0 | View return |
| 2023 | Zimmerman Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2023 | Central Wyoming Counseling Center | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Casper Housing Authority Cares | 990 | Chairperson | 1 | $0 | $0 | View return |
| 2022 | Zimmerman Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2022 | Casper Housing Authority Cares | 990 | Chairperson | 1 | $0 | $0 | View return |
| 2021 | Zimmerman Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2021 | Boys & Girls Clubs of Central Wyoming | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Casper Housing Authority Cares | 990 | Chairperson | 1 | $0 | $0 | View return |
| 2020 | Zimmerman Family Foundation | 990PF | President/Director | 1 | $0 | $0 | View return |
| 2020 | Boys & Girls Clubs of Central Wyoming | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Boys & Girls Clubs of Central Wyoming | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Boys & Girls Clubs of Central Wyoming | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Boys & Girls Clubs of Central Wyoming | 990 | Board Member | 2 | $0 | $0 | View return |
| 2016 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Casper Family Connections | 990 | Vice President | 2 | $0 | $0 | View return |
| 2015 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2015 | Casper Family Connections | 990 | Vice President | 2 | $0 | $0 | View return |
| 2014 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2014 | Casper Family Connections | 990 | Vice President | 2 | $0 | $0 | View return |
| 2013 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2013 | Casper Family Connections | 990 | Vice President | 2 | $0 | $0 | View return |
| 2012 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2010 | Zimmerman Family Foundation | 990PF | Director | 1 | $0 | $0 | View return |