| 2024 | Israel Tennis Centers Foundation Inc. | 990 | Director/Board Member | 2 | $0 | $0 | View return |
| 2024 | The Jewish Federation of Sarasota-Manatee Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2023 | Israel Tennis Centers Foundation Inc. | 990 | Director/Board Member | 2 | $0 | $0 | View return |
| 2023 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2023 | The Jewish Federation of Sarasota-Manatee Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2022 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2021 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2021 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2020 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2020 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2019 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2018 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2018 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2017 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2017 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2016 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2016 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2015 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2015 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2015 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2014 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 5 | $0 | $0 | View return |
| 2014 | Israel Tennis Center | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2014 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2013 | Israel Tennis Centers Foundation Inc. | 990 | Lifetime Director | 2 | $0 | $0 | View return |
| 2013 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 3 | $0 | $0 | View return |
| 2013 | Israel Tennis Center | 990 | Chairman | 1 | - | - | View return |
| 2012 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 2 | $0 | $0 | View return |
| 2010 | Larry and Mary Greenspon Foundation Inc. | 990PF | President | 2 | $0 | $0 | View return |