| 2025 | National Association of Letter Carriers | 990 | Trustee | 5 | $840 | $0 | View return |
| 2025 | Mary D Chafee Fund Co Mark Chafee | 990PF | Director | 2 | $0 | $0 | View return |
| 2024 | National Association of Letter Carriers | 990 | Trustee | 5 | $840 | $0 | View return |
| 2024 | Tobaccofree Earth | 990 | Secretary | 1 | $0 | $0 | View return |
| 2024 | Gulf Stream Council of Boy Scouts of America Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2024 | Be an Elf | 990 | Secretary | 1 | $0 | $0 | View return |
| 2024 | Mary D Chafee Fund Co Mark Chafee | 990PF | Director | 2 | $0 | $0 | View return |
| 2024 | Domestic Abuse Intervention Programs | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | National Association of Letter Carriers | 990 | Trustee | 5 | $840 | $0 | View return |
| 2023 | Domestic Abuse Intervention Programs | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Mary D Chafee Fund Co Mark Chafee | 990PF | Director | 2 | $0 | $0 | View return |
| 2022 | National Association of Letter Carriers | 990 | Trustee | 5 | $840 | $0 | View return |
| 2022 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2021 | National Association of Letter Carriers | 990 | Trustee | 5 | $840 | $0 | View return |
| 2021 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2020 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2020 | First Witness Child Advocacy Center | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2019 | First Witness Child Advocacy Center | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | First Witness Child Advocacy Center | 990 | Secretary | 2 | $0 | $0 | View return |
| 2018 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2018 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2017 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2017 | First Witness Child Advocacy Center | 990 | Secretary | 2 | $0 | $0 | View return |
| 2016 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2016 | First Witness Child Advocacy Center | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2014 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 2 | $0 | $0 | View return |
| 2013 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 4 | $0 | $0 | View return |
| 2012 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 4 | $0 | $0 | View return |
| 2011 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 4 | $0 | $0 | View return |
| 2010 | Mary D Chafee Fund Co Mark Chafee | 990PF | President | 1 | $0 | $0 | View return |