| 2023 | American Friends of Raanana Community Learning Group Inc. | 990EZ | President | 2 | $0 | $0 | View return |
| 2022 | American Friends of Raanana Community Learning Group Inc. | 990EZ | President | 2 | $0 | $0 | View return |
| 2021 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The American Jewish Joint Distribution Committee Inc | 990 | Assistant Treasurer (Through 2/5/20), Board Member | 1 | $0 | $0 | View return |
| 2020 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2020 | Center for Israel Education Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2019 | The American Jewish Joint Distribution Committee Inc | 990 | Assistant Treasurer | 1 | $0 | $0 | View return |
| 2019 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Center for Israel Education Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2018 | Macguffin Theatre and Film Company | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Arcata House Partnership | 990 | President | 2 | $0 | $0 | View return |
| 2018 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Center for Israel Education Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2017 | Arcata House Partnership | 990 | President | 2 | $0 | $0 | View return |
| 2017 | Macguffin Theatre and Film Company | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Center for Israel Education Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2016 | Arcata House Partnership | 990 | President | 2 | $0 | $0 | View return |
| 2016 | Macguffin Theatre and Film Company | 990 | Board Member | 2 | $0 | $0 | View return |
| 2016 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Arcata House Partnership | 990 | President | 2 | $0 | $0 | View return |
| 2015 | Macguffin Theatre and Film Company | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 0 | $0 | $0 | View return |
| 2015 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | American Friends of Raanana Community Learning Group Inc. | 990EZ | President | 4 | $19,800 | - | View return |
| 2014 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Arcata House Partnership | 990 | President | 2 | $0 | $0 | View return |
| 2014 | Macguffin Theatre and Film Company | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas. | 5 | $0 | $0 | View return |
| 2014 | Jewish Family & Career Services Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The American Jewish Joint Distribution Committee Inc | 990 | Board Member | 1 | $0 | - | View return |
| 2013 | Macguffin Theatre and Film Company | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas./Sec. And Trus | 5 | $0 | $0 | View return |
| 2013 | Arcata House Partnership | 990 | President | 0 | $0 | $0 | View return |
| 2012 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas./Sec. And Trus | 5 | $0 | $0 | View return |
| 2011 | The David and Merle Horwitz Foundation Inc | 990PF | Pres./Treas./Sec. And Trus | 5 | $0 | $0 | View return |
