| 2024 | The Piedmont Environmental Council Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2024 | Harry Z Isaacs Foundation Inc. | 990PF | Trustee | 1 | $0 | - | View return |
| 2024 | William M Backer Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2024 | Pfh Conservation Fund | 990 | Treasurer | 0.5 | $0 | $0 | View return |
| 2024 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2023 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2023 | The Piedmont Environmental Council Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2023 | William M Backer Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2023 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Pfh Conservation Fund | 990 | Treasurer | 0.5 | $0 | $0 | View return |
| 2022 | The Piedmont Environmental Council Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2022 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2022 | Pfh Conservation Fund | 990 | Treasurer | 0.5 | $0 | $0 | View return |
| 2022 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | William M Backer Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2021 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2021 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | William M Backer Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2021 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Pfh Conservation Fund | 990EZ | Treasurer | 0.5 | $0 | - | View return |
| 2020 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2019 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Oatlands Inc. | 990 | Honorary Director | 1 | $0 | $0 | View return |
| 2019 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2019 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2018 | Alibi Preservation Foundation (The) | 990 | Sec/Treasurer/Director | 2 | $0 | $0 | View return |
| 2018 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2018 | Oatlands Inc. | 990 | Honorary Director | 1 | $0 | $0 | View return |
| 2018 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Alibi Preservation Foundation (The) | 990 | Secretary/Treasurer/Director | 2 | $0 | $0 | View return |
| 2017 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Oatlands Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | Oatlands Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Alibi Preservation Foundation (The) | 990 | Secretary/Treasurer/Director | 2 | $0 | $0 | View return |
| 2015 | Alibi Preservation Foundation (The) | 990 | Secretary/Treasurer/Director | 2 | $0 | $0 | View return |
| 2015 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Oatlands Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | William M Backer Foundation Inc | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | Oatlands Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | The Piedmont Environmental Council Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Immediate Pa | 2 | $0 | $0 | View return |
| 2014 | Associated Builders and Contractors Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Alibi Preservation Foundation (The) | 990 | Secretary/Treasurer/Director | 2 | $0 | $0 | View return |
| 2014 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Oatlands Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Associated Builders and Contractors Rhode Island Chapter Abc | 990 | Chairman | 2 | $0 | $0 | View return |
| 2013 | Associated Builders and Contractors Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Alibi Preservation Foundation (The) | 990 | Secretary/Treasurer/Director | 2 | $0 | $0 | View return |
| 2013 | Alibi Club of Washington Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2010 | The George Grayson Foundation | 990PF | Dir/Presiden | 0.25 | $0 | $0 | View return |