| 2024 | Friends of Santa Cruz State Parks | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2024 | Greenhouse Services Foundation | 990 | Director | 6 | $0 | $0 | View return |
| 2023 | Friends of Santa Cruz State Parks | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2023 | Greenhouse Services Foundation | 990 | Member Emeritus | 6 | $0 | $0 | View return |
| 2022 | Friends of Santa Cruz State Parks | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2022 | Greenhouse Services Foundation | 990 | Director | - | $0 | $0 | View return |
| 2021 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2021 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2021 | Friends of Santa Cruz State Parks | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2020 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2020 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2019 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2019 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2019 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2018 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2018 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2017 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2016 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2016 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2016 | Friends of Santa Cruz State Parks | 990 | Board Member | 2 | $0 | $0 | View return |
| 2015 | Kee Kitayama Research Foundation | 990PF | Treasurer/Secretary | 1 | $0 | $0 | View return |
| 2015 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2014 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2013 | Greenhouse Services Foundation | 990 | Vice-Preside | - | $0 | $0 | View return |
| 2013 | Friends of Santa Cruz State Parks | 990 | Board Member | 1 | $0 | $0 | View return |