| 2024 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2019 | Massachusetts Organization of State Engineers & Scientists Moses | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Massachusetts Organization of State Engineers & Scientists Moses | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2018 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2017 | Massachusetts Organization of State Engineers & Scientists Moses | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Massachusetts Organization of State Engineers & Scientists Moses | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The National Council for Science and the Environment | 990 | Director | 0.5 | $0 | $0 | View return |
| 2015 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | Young Mens Christian Association of Akron Ohio | 990 | Chairperson | 1 | $0 | $0 | View return |
| 2014 | One Fabulous Day Foundation Inc | 990EZ | Vice President | 4 | $0 | - | View return |
| 2013 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2013 | Lexington Community Media Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Young Mens Christian Association of Akron Ohio | 990 | 1st Vice Chairperson | 1 | $0 | $0 | View return |
| 2012 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2011 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2010 | The Leonard Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
