| 2022 | The Worcester Natural History Society | 990 | Trustee | 4 | $0 | $0 | View return |
| 2022 | Southborough Open Land Foundation Inc. | 990 | President, Director | 10 | $0 | $0 | View return |
| 2022 | New England Forestry Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | Southborough Open Land Foundation Inc. | 990 | President, Director | 10 | $0 | $0 | View return |
| 2021 | New England Forestry Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2021 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | New England Forestry Foundation Inc. | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Southborough Open Land Foundation Inc. | 990 | President | 16 | $0 | $0 | View return |
| 2020 | Massachusetts Land Trust Coalition Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2019 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2019 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2019 | Southborough Open Land Foundation Inc. | 990 | President | 16 | $0 | $0 | View return |
| 2019 | Massachusetts Land Trust Coalition Inc | 990EZ | Trustee | 1 | $0 | - | View return |
| 2019 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2018 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | Massachusetts Land Trust Coalition Inc | 990EZ | Trustee | 5 | $0 | $0 | View return |
| 2018 | Southborough Open Land Foundation Inc. | 990 | President | 16 | $0 | $0 | View return |
| 2018 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2017 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2017 | Southborough Open Land Foundation Inc. | 990 | President | 16 | $0 | $0 | View return |
| 2017 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2017 | 495 Metrowest Corridor Partnership Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Worcester Natural History Society | 990 | Trustee | 2 | $0 | $0 | View return |
| 2016 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2016 | Southborough Open Land Foundation Inc. | 990 | President | 16 | $0 | $0 | View return |
| 2016 | The Miramichi Salmon Association (Us) Inc | 990 | Director | 0 | $0 | $0 | View return |
| 2016 | 495 Metrowest Corridor Partnership Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2015 | Massachusetts Land Trust Coalition Inc | 990 | Trustee | 5 | $0 | $0 | View return |
| 2015 | Southborough Open Land Foundation Inc. | 990 | Trustee | 4 | $0 | $0 | View return |
| 2015 | The Miramichi Salmon Association (Us) Inc | 990 | Director | - | $0 | $0 | View return |
| 2015 | 495 Metrowest Corridor Partnership Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2014 | Southborough Open Land Foundation Inc. | 990 | Trustee | 4 | $0 | $0 | View return |
| 2014 | Massachusetts Land Trust Coalition Inc | 990EZ | Trustee | 5 | $0 | - | View return |
| 2014 | 495 Metrowest Corridor Partnership Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Massachusetts Land Trust Coalition Inc | 990EZ | Trustee | 5 | $0 | - | View return |
| 2013 | Laurel Brook Club Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2013 | Southborough Open Land Foundation Inc. | 990 | Trustee | 4 | $0 | $0 | View return |
| 2013 | 495 Metrowest Corridor Partnership Inc | 990 | Director | 1 | $0 | $0 | View return |