| 2024 | Washington Area Council of Engineering Laboratories Inc | 990 | Executive Director | 5 | $0 | $0 | View return |
| 2024 | Decorative Plumbing and Hardware Association Inc | 990 | Executive Vice President | 20 | $0 | $0 | View return |
| 2024 | Property Management Association Inc | 990 | Executive Vice-President | 20 | $0 | $0 | View return |
| 2024 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2023 | Decorative Plumbing and Hardware Association Inc | 990 | Executive Vice President | - | $0 | $0 | View return |
| 2023 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.2 | $0 | $0 | View return |
| 2023 | Property Management Association Inc | 990 | Executive Vice-President | 20 | $0 | $0 | View return |
| 2023 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Decorative Plumbing and Hardware Association Inc | 990 | Executive Vice President | - | $0 | $0 | View return |
| 2022 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.2 | $0 | $0 | View return |
| 2022 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Property Management Association Inc | 990 | Executive Vice-President | 20 | $0 | $0 | View return |
| 2021 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Decorative Plumbing and Hardware Association Inc | 990 | Executive Vice President | - | $0 | $0 | View return |
| 2021 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.2 | $0 | $0 | View return |
| 2021 | Property Management Association Inc | 990 | Executive Vice-President | 20 | $0 | $0 | View return |
| 2021 | Better Business Bureau of Metropolitan New York Inc | 990 | Director Until April 2021 | 0.2 | $0 | $0 | View return |
| 2021 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Better Business Bureau of Metropolitan New York Inc | 990 | Director | 0.2 | $0 | $0 | View return |
| 2020 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.5 | $0 | $0 | View return |
| 2020 | Property Management Association Inc | 990 | Executive Vice-President | 20 | $0 | $0 | View return |
| 2020 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Better Business Bureau of Metropolitan New York Inc | 990 | Director | 0.2 | $0 | $0 | View return |
| 2019 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.6 | $0 | $0 | View return |
| 2019 | Property Management Association Inc | 990 | Executive Vice-President | 3 | $0 | $0 | View return |
| 2019 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2018 | National Association of Specialty Pharmacy Inc | 990 | Director | 0.3 | $0 | $0 | View return |
| 2018 | Property Management Association Inc | 990 | Executive Vice-President | 3 | $0 | $0 | View return |
| 2018 | Friends of Kwmu Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Michigan Opera Theatre | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | Property Management Association Inc | 990 | Executive Vice-President | 3 | $0 | $0 | View return |
| 2017 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2017 | Friends of Kwmu Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Property Management Association Inc | 990 | Executive Vice-President | 3 | $0 | $0 | View return |
| 2016 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2016 | Michigan Opera Theatre | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2016 | Friends of Kwmu Inc. | 990EZ | Board Member | 1 | $0 | $0 | View return |
| 2015 | Property Management Association Inc | 990 | Executive Vice-President | 3 | $0 | $0 | View return |
| 2015 | Center for Jewish Living at Cornell Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2015 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2015 | Friends of Kwmu Inc. | 990EZ | Board Member Beg Nov 2015 | 1 | $0 | $0 | View return |
| 2014 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2014 | Center for Jewish Living at Cornell Inc. | 990EZ | Treasurer | 1 | $0 | $0 | View return |
| 2013 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $0 | $0 | View return |
| 2013 | Property Owners Association of New Jersey | 990EZ | Co-Counsel & Past Presiden | 1 | $0 | $0 | View return |
| 2012 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 1 | $4,000 | $0 | View return |
| 2011 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 0 | $0 | $0 | View return |
| 2010 | The Sigmund Cohn Family Foundation Inc | 990PF | President | 0 | $0 | $0 | View return |