| 2024 | Oxbow Affiliated Companies Health Benefit | 990 | Trustee | 0 | $0 | $1,210,285 | View return |
| 2024 | Childrens Hope Alliance | 990 | Board Member | 1 | $0 | $0 | View return |
| 2024 | The Ark | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2024 | Big Brothers Big Sisters of Northwestern Ohio | 990 | Member | 2 | $0 | $0 | View return |
| 2023 | Childrens Hope Alliance | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2023 | Home Builders Association of Lincoln | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2023 | Big Brothers Big Sisters of Northwestern Ohio | 990 | Member | 2 | $0 | $0 | View return |
| 2022 | National Certification Board for Diabetes Educators | 990 | Public Member/Past Chair | 5 | $0 | $0 | View return |
| 2022 | Bais Medrash L Torah Inc. | 990 | Officer | - | $0 | $0 | View return |
| 2022 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2022 | Jewish Community Centers of Chicago | 990 | Vice Chairman (Until 9/14/22) | 1 | $0 | $0 | View return |
| 2021 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2021 | National Certification Board for Diabetes Educators | 990 | Public Member/Chair | 5 | $0 | $0 | View return |
| 2021 | Bh Klein Family Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2021 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2021 | Childrens Hope Alliance | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Jewish Community Centers of Chicago | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2020 | Bh Klein Family Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2020 | Bais Medrash L Torah Inc. | 990 | Officer | - | $0 | $0 | View return |
| 2020 | National Certification Board for Diabetes Educators | 990 | Public Member/Chair-Elect | 5 | $0 | $0 | View return |
| 2020 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2020 | 113 | 990EZ | Board Treasurer | 2 | $0 | $0 | View return |
| 2020 | Jewish Community Centers of Chicago | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2019 | National Certification Board for Diabetes Educators | 990 | Public Member/Treasurer | 5 | $0 | $0 | View return |
| 2019 | Bh Klein Family Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2019 | The Nathan J Klein Fund | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2019 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2019 | Jewish Community Centers of Chicago | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2019 | Children'S Hope Alliance Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2019 | Jewish Community Centers Endowment Foundation | 990 | Treasurer | 0.3 | $0 | $0 | View return |
| 2018 | Bh Klein Family Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2018 | National Certification Board for Diabetes Educators | 990 | Public Member | 5 | $0 | $0 | View return |
| 2018 | The Nathan J Klein Fund | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2018 | Children'S Hope Alliance Foundation | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2018 | Jewish Community Centers of Chicago | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2017 | The Nathan J Klein Fund | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2017 | Bh Klein Family Foundation | 990PF | Trustee | 0 | $0 | - | View return |
| 2017 | Jewish Community Centers of Chicago | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Barium Springs Home for Children | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2017 | Grandfather Home for Children Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Bais Medrash L Torah Inc. | 990 | Officer | 1 | $0 | $0 | View return |
| 2016 | Jewish Community Centers of Chicago | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Grandfather Home for Children Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Barium Springs Home for Children | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Grandfather Home for Children Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Jewish Community Centers of Chicago | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Barium Springs Home for Children | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | Barium Springs Home for Children | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | Jewish Community Centers of Chicago | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Grandfather Home for Children Inc | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | Assisted Living at Northern Riverview Inc. | 990 | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Northern Manor Multicare Center Inc. | 990 | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Northern Services Group Inc | 990EZ | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Lifestyle Options for Seniors Foundation Inc | 990EZ | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Northern Metropolitan Foundation for Health Care Inc | 990 | Board Member | 0.3 | $0 | $0 | View return |
| 2013 | Illinois Council on Long Term Care | 990 | Board Member | 3 | $0 | $0 | View return |
| 2013 | Northern Metropolitan Inc. | 990 | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Northern Riverview Health Care Center Inc. | 990 | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Fountainview at College Road Inc. | 990 | Board Member | 0.1 | $0 | $0 | View return |
| 2013 | Jewish Community Centers of Chicago | 990 | Director | 1 | $0 | $0 | View return |
