| 2024 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2024 | Tabachnick Family Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2023 | Tabachnick Family Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2023 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2023 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Tabachnick Family Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2022 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2022 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2022 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2021 | Tabachnick Family Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2021 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Tabachnick Family Foundation | 990PF | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2020 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2019 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Tabachnick Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2019 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2018 | Tabachnick Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2018 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2018 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2017 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | Director | - | $0 | $0 | View return |
| 2017 | Tabachnick Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2017 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2016 | Tabachnick Family Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | Keystone Research Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2015 | Progress South Inc | 990EZ | Board Member | 0 | $0 | $0 | View return |
| 2015 | Keystone Research Center Inc. | 990 | Board Member | 2 | - | - | View return |
| 2015 | Tabachnick Family Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | - | - | $0 | $0 | View return |
| 2014 | Tabachnick Family Foundation | 990PF | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | Keystone Research Center Inc. | 990 | Board Member | 2 | - | - | View return |
| 2013 | Pittsburgh Youth Symphony Orchestra Association Inc. | 990 | - | 1 | $0 | $0 | View return |
| 2013 | Keystone Research Center Inc. | 990 | Board Member | 2 | - | - | View return |
| 2012 | Tabachnick Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |