| 2024 | Neighborhood Legal Services Program of the District of Columbia | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Harlem Baseball Hitting Academy Inc. | 990PF | Trustee | 10 | $0 | $0 | View return |
| 2024 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Washington International Education Fund | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2024 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2023 | Washington International Education Fund | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2023 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2023 | Sunflower Bakery Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Wellesley Swimming Association Inc. | 990EZ | Treasurer Elect | 0 | $0 | $0 | View return |
| 2023 | The Jewish Federation of Greater Washington Inc. | 990 | Past President | 2 | $0 | $0 | View return |
| 2022 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 20 | $0 | $0 | View return |
| 2022 | Greater Washington Jewish Community Foundation Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | Jewish Council for Public Affairs Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2022 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2022 | Washington International Education Fund | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2022 | Sunflower Bakery Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | The Jewish Federation of Greater Washington Inc. | 990 | President | 2 | $0 | $0 | View return |
| 2021 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 20 | $0 | $0 | View return |
| 2021 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2021 | Greater Washington Jewish Community Foundation Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Jewish Council for Public Affairs Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2021 | Sunflower Bakery Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Jewish Community Relations Council of Greater Washington | 990 | Immediate Past President | 1.5 | $0 | $0 | View return |
| 2021 | The Jewish Federation of Greater Washington Inc. | 990 | President | 2 | $0 | $0 | View return |
| 2020 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2020 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 20 | $0 | $0 | View return |
| 2020 | Jewish Council for Public Affairs Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2020 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Jewish Federation of Greater Washington Inc. | 990 | VP, Finance & Treasurer | 2 | $0 | $0 | View return |
| 2019 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 20 | $0 | $0 | View return |
| 2019 | Jewish Council for Public Affairs Inc | 990 | Member | 2 | $0 | $0 | View return |
| 2019 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2019 | The Jewish Federation of Greater Washington Inc. | 990 | VP, Finance & Treasurer | 2 | $0 | $0 | View return |
| 2019 | Jewish Community Relations Council of Greater Washington | 990 | President | 3 | $0 | $0 | View return |
| 2018 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 10 | $0 | $0 | View return |
| 2018 | Jewish Council for Public Affairs Inc | 990 | Member | 0.5 | $0 | $0 | View return |
| 2018 | Samuel and Sylvia Kaplan Family Foundation | 990PF | Officer | 0 | $0 | $0 | View return |
| 2018 | Jewish Community Relations Council of Greater Washington | 990 | President | 3 | $0 | $0 | View return |
| 2018 | Jewish Foundation for Group Homes Inc | 990 | VP Development | 2 | $0 | $0 | View return |
| 2018 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2017 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 15 | $0 | $0 | View return |
| 2017 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2017 | Jewish Council for the Aging of Greater Washington Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Jewish Foundation for Group Homes Inc | 990 | VP Development | 2 | $0 | $0 | View return |
| 2016 | Harlem Baseball Hitting Academy Inc. | 990PF | Treasurer | 10 | $0 | $0 | View return |
| 2016 | Jewish Foundation for Group Homes Inc | 990 | VP Development | 2 | $0 | $0 | View return |
| 2016 | Jewish Council for the Aging of Greater Washington Inc. | 990 | Past President | 1 | $0 | $0 | View return |
| 2016 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2015 | Jewish Foundation for Group Homes Inc | 990 | Development VP | 2 | $0 | $0 | View return |
| 2015 | Jewish Council for the Aging of Greater Washington Inc. | 990 | Past President | 1 | $0 | $0 | View return |
| 2015 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2014 | Jewish Council for the Aging of Greater Washington Inc. | 990 | Past President | 1 | $0 | $0 | View return |
| 2014 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2014 | Jewish Foundation for Group Homes Inc | 990 | Development VP | 2 | $0 | $0 | View return |
| 2013 | The Jewish Federation of Greater Washington Inc. | 990 | Member | 0.7 | $0 | $0 | View return |
| 2013 | Jewish Council for the Aging of Greater Washington Inc. | 990 | Director | 3 | $0 | $0 | View return |
| 2012 | Leslie & Samuel Kaplan Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |