| 2023 | National Hellenic Museum | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | Foundation for Hellenic Education and Culture Nfp | 990 | Chairman | 1 | $0 | $0 | View return |
| 2023 | Hellenic American Academy Foundation Nfp | 990 | Chairman | 0 | $0 | $0 | View return |
| 2022 | Foundation for Hellenic Education and Culture Nfp | 990 | Chairman | 1 | $0 | $0 | View return |
| 2022 | National Hellenic Museum | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Hellenic American Academy Foundation Nfp | 990 | Chairman | - | $0 | $0 | View return |
| 2022 | The American College of Greece | 990 | Chair (Thru 12/05/2022) | 2 | $0 | $0 | View return |
| 2022 | Demetrios and Marianna Logothetis Family Charitable Found | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | The American University of Greece Foundation | 990 | Chair (Thru 12/05/2022) | 1 | $0 | $0 | View return |
| 2021 | Foundation for Hellenic Education and Culture Nfp | 990 | Chairman | 1 | $0 | $0 | View return |
| 2021 | National Hellenic Museum | 990 | Board Member | 2 | $0 | $0 | View return |
| 2021 | Hellenic American Academy Foundation Nfp | 990 | Chairman | - | $0 | $0 | View return |
| 2021 | The American College of Greece | 990 | Chair | 2 | $0 | $0 | View return |
| 2021 | The American University of Greece Foundation | 990 | Chair | 1 | $0 | $0 | View return |
| 2021 | Demetrios and Marianna Logothetis Family Charitable Found | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Demetrios and Marianna Logothetis Family Charitable Found | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Foundation for Hellenic Education and Culture Nfp | 990 | Chairman | 1 | $0 | $0 | View return |
| 2020 | Hellenic American Academy Foundation Nfp | 990 | Chairman | - | $0 | $0 | View return |
| 2020 | The American College of Greece | 990 | Chair | 2 | $0 | $0 | View return |
| 2020 | The American University of Greece Foundation | 990 | Chair | 1 | $0 | $0 | View return |
| 2019 | Foundation for Hellenic Education and Culture Nfp | 990 | Chairman | 1 | $0 | $0 | View return |
| 2019 | Hellenic American Academy Foundation Nfp | 990 | Chairman | - | $0 | $0 | View return |
| 2019 | The American College of Greece | 990 | Chair | 2 | $0 | $0 | View return |
| 2019 | The American University of Greece Foundation | 990 | Chair | 1 | $0 | $0 | View return |
| 2018 | Foundation for Hellenic Education and Culture Nfp | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The American University of Greece Foundation | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2018 | The American College of Greece | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2017 | Foundation for Hellenic Education and Culture Nfp | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The American University of Greece Foundation | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2017 | The American College of Greece | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2017 | The American College of Greece | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2017 | The American University of Greece Foundation | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2016 | The American University of Greece Foundation | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2016 | The American College of Greece | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2015 | The American College of Greece | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2015 | The American University of Greece Foundation | 990 | Vice Chair | 1 | $0 | $0 | View return |
| 2014 | The American College of Greece | 990 | Trustee | 2 | $0 | - | View return |
| 2014 | The American University of Greece Foundation | 990 | Trustee | 1 | $0 | $0 | View return |