| 2025 | Steinbeck House Incorporated | 990 | Treasurer | 10 | $0 | $0 | View return |
| 2025 | The Beir Foundation | 990PF | Vice President/Treasurer | 1 | $0 | $0 | View return |
| 2024 | Bridgehampton Club | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2024 | The Beir Foundation | 990PF | Vice President/Treasurer | 1 | $0 | $0 | View return |
| 2024 | Breakwater Sailing Center Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Stephenson Pope Babcock Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2023 | Bridgehampton Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Breakwater Sailing Center Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2023 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Stephenson Pope Babcock Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2022 | Bridgehampton Club | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2022 | Breakwater Sailing Center Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Breakwater Sailing Center Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2020 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Breakwater Sailing Center Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2019 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Breakwater Sailing Center Inc. | 990 | Commodore | 10 | $0 | $0 | View return |
| 2019 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2018 | Breakwater Sailing Center Inc. | 990 | Commodore | 10 | $0 | $0 | View return |
| 2018 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2017 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2017 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2016 | Breakwater Sailing Center Inc. | 990 | Vice Commodo | 10 | $0 | $0 | View return |
| 2016 | The Beir Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Peconic Landing at Southold Inc. | 990 | Board Member Thru 12/2016 | 1 | $0 | $0 | View return |
| 2016 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2015 | Breakwater Sailing Center Inc. | 990 | Vice Commodo | 10 | $0 | $0 | View return |
| 2015 | Peconic Landing at Southold Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2014 | Peconic Landing at Southold Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Breakwater Sailing Center Inc. | 990 | Treasurer | 10 | $0 | $0 | View return |
| 2014 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2013 | Breakwater Sailing Center Inc. | 990 | Treasurer | 10 | $0 | $0 | View return |
| 2013 | Peconic Landing at Southold Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2012 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |
| 2011 | Stephenson Pope Babcock Foundation | 990PF | Vice President | 0 | $0 | $0 | View return |