| 2025 | Richard a Karp Charitable Foundation | 990PF | Secty | 0.5 | $0 | $0 | View return |
| 2024 | Belmont Futures | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | 4030 Brown Street Education Alliance | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Richard a Karp Charitable Foundation | 990PF | Secty | 0.5 | $0 | $0 | View return |
| 2024 | 907 N 41St Street Education Alliance | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Belmont Family Services | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Wisconsin Academy of Trial Lawyers | 990 | Director | 0 | $0 | $0 | View return |
| 2024 | Belmont Neighborhood Education Alliance | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2024 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2024 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2023 | Richard a Karp Charitable Foundation | 990PF | Secty | 0.5 | $0 | $0 | View return |
| 2023 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2023 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2023 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Richard a Karp Charitable Foundation | 990PF | Secty | 1 | $0 | $0 | View return |
| 2022 | Twin Valley Council Inc Boy Scouts of America | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2022 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2021 | Richard a Karp Charitable Foundation | 990PF | Secty | 1 | $0 | $0 | View return |
| 2021 | Twin Valley Council Inc Boy Scouts of America | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Richard a Karp Charitable Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2021 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2021 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2021 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2021 | Design & Development Resources for Education and the Arts Inc | 990EZ | Board Chair | 2 | $0 | $0 | View return |
| 2021 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Richard a Karp Charitable Foundation | 990PF | Secretary | 1 | $0 | $0 | View return |
| 2020 | Design & Development Resources for Education and the Arts Inc | 990EZ | Board Chair | 2 | $0 | - | View return |
| 2020 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2020 | Claremont Mckenna College Alumni Association | 990PF | Member | 1 | $0 | $0 | View return |
| 2020 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2020 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2020 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2020 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2019 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2019 | Design & Development Resources for Education and the Arts Inc | 990EZ | Board Chair | 2 | $0 | - | View return |
| 2019 | Voice Charter School of New York | 990 | Member | 1.5 | $0 | $0 | View return |
| 2019 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2018 | Mankato Area Foundation | 990 | Treasurer (Ended July 2017) | 2 | $0 | $0 | View return |
| 2018 | Celiac Disease Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2018 | Celiac Disease Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2018 | Voice Charter School of New York | 990 | Member | 10 | $0 | $0 | View return |
| 2018 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2018 | Claremont Mckenna College Alumni Association | 990PF | Member | 1 | $0 | $0 | View return |
| 2018 | Celiac Disease Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Mankato Area Foundation | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2017 | Pennsylvania Apartment Association - East | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Celiac Disease Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | Naiop San Francisco Bay Area Chapter | 990 | Advisory Board Member | 0.5 | $0 | $0 | View return |
| 2017 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2017 | Voice Charter School of New York | 990 | Member | 10 | $0 | $0 | View return |
| 2017 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2017 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Mankato Area Foundation | 990 | Treasurer (Ended July 2017) | 2 | $0 | $0 | View return |
| 2016 | Naiop San Francisco Bay Area Chapter | 990 | Advisory Board Member | 0.5 | $0 | $0 | View return |
| 2016 | Pennsylvania Apartment Association - East | 990 | Director | 1 | - | - | View return |
| 2016 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2016 | Celiac Disease Foundation | 990 | Board Member | 2 | $0 | $0 | View return |
| 2016 | Voice Charter School of New York | 990 | Member | 10 | $0 | $0 | View return |
| 2016 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2016 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2015 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2015 | Naiop San Francisco Bay Area Chapter | 990 | Advisory Board Member | 0.5 | $0 | $0 | View return |
| 2015 | Mankato Area Foundation | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2015 | Mankato Area Foundation | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2015 | Community Education Alliance of West Philadelphia | 990 | President | 5 | $0 | $0 | View return |
| 2015 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2015 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | - | - | View return |
| 2015 | Voice Charter School of New York | 990 | Member | 3 | $0 | $0 | View return |
| 2015 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chairman | 5 | $0 | $0 | View return |
| 2014 | A World Institute for a Sustainable Humanity | 990EZ | President & CEO | 15 | $0 | - | View return |
| 2014 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2014 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chariman | 5 | $0 | $0 | View return |
| 2014 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2014 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | - | - | View return |
| 2014 | Community Education Alliance of West Philadelphia | 990 | President | 5 | $0 | $0 | View return |
| 2014 | Voice Charter School of New York | 990 | Member | 3 | $0 | $0 | View return |
| 2013 | Twin Valley Council Inc Boy Scouts of America | 990 | Vice President | 1 | $0 | $0 | View return |
| 2013 | Voice Charter School of New York | 990 | Member | 1 | $0 | $0 | View return |
| 2013 | Community Education Alliance of West Philadelphia | 990 | President | 5 | $0 | $0 | View return |
| 2013 | Raymond and Ruth Perelman Jewish Day School | 990 | Board Member | 2 | - | - | View return |
| 2013 | A World Institute for a Sustainable Humanity | 990EZ | CEO | 15 | $0 | - | View return |
| 2013 | Mankato Area Foundation | 990 | Treasurer, Finance Chair | 3 | $0 | $0 | View return |
| 2013 | Belmont Academy Charter School DBA Inquiry Charter School | 990 | Chariman | 5 | $0 | $0 | View return |
| 2013 | Belmont Charter School | 990 | President | 5 | $0 | $0 | View return |
| 2013 | Design & Development Resources for Education and the Arts Inc | 990 | Chair | 2 | $0 | $0 | View return |
| 2013 | Northern Manhattan Improvement Corporation | 990 | Director | 4 | $0 | $0 | View return |