| 2024 | Fund for the Pacific Century | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Japan America Society of Hawaii | 990 | Director | 0.36 | $0 | $0 | View return |
| 2024 | Hawaii Opera Theatre | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Fund for the Pacific Century | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2023 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2023 | Japan America Society of Hawaii | 990 | Director | 0.36 | $0 | $0 | View return |
| 2023 | Pacific and Asian Affairs Council | 990 | Advisory Council | 0.42 | $0 | $0 | View return |
| 2023 | East-West Center Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Hawaii Opera Theatre | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Pacific Forum International | 990 | Board Of Directors | 0.75 | $0 | $0 | View return |
| 2022 | Fund for the Pacific Century | 990EZ | Director | 1 | $0 | - | View return |
| 2022 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2022 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2022 | Japan America Society of Hawaii | 990 | Director | 0.3 | $0 | $0 | View return |
| 2022 | Hawaii Opera Theatre | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | East-West Center Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2022 | Pacific and Asian Affairs Council | 990 | Advisory Council | 0.42 | $0 | $0 | View return |
| 2022 | Pacific Forum International | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2021 | Fund for the Pacific Century | 990EZ | Director | 1 | $0 | - | View return |
| 2021 | Japan America Society of Hawaii | 990 | Director | 0.3 | $0 | $0 | View return |
| 2021 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2021 | Hawaii Opera Theatre | 990 | Vice President | 1 | $0 | $0 | View return |
| 2021 | East-West Center Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Pacific and Asian Affairs Council | 990 | Advisory Council | 0.42 | $0 | $0 | View return |
| 2021 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2020 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2020 | Japan America Society of Hawaii | 990 | Director | 0.2 | $0 | $0 | View return |
| 2020 | Fund for the Pacific Century | 990EZ | Director | 1 | $0 | - | View return |
| 2020 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2020 | Pacific Forum International | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Hawaii Opera Theatre | 990 | Vice President | 1 | $0 | $0 | View return |
| 2020 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2020 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2019 | Fund for the Pacific Century | 990EZ | Director | 1 | $0 | - | View return |
| 2019 | Japan America Society of Hawaii | 990 | Director | 0.2 | $0 | $0 | View return |
| 2019 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2019 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2019 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2019 | Pacific Forum International | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2019 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2019 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2018 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2018 | Japan America Society of Hawaii | 990 | Director | 0.2 | $0 | $0 | View return |
| 2018 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2018 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2018 | Honolulu Museum of Art | 990 | Trustee & Vice President | 2 | $0 | $0 | View return |
| 2018 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2017 | Japan America Society of Hawaii | 990 | Director | 0.2 | $0 | $0 | View return |
| 2017 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2017 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2017 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2017 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Crown Prince Akihito Scholarship Foundation | 990 | Trustee | 0.1 | $0 | $0 | View return |
| 2016 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2016 | Japan America Society of Hawaii | 990 | Director | 0.2 | $0 | $0 | View return |
| 2016 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2016 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2016 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2016 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2015 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2015 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2015 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2014 | The Tidwell Idaho Foundation Inc | 990PF | Treasurer | 1 | $0 | $0 | View return |
| 2014 | Pacific and Asian Affairs Council | 990 | Vice President | 1 | $0 | $0 | View return |
| 2014 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2014 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2013 | Chaminade University of Honolulu | 990 | Regent | 0.3 | $0 | $0 | View return |
| 2013 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2013 | Hawaii Opera Theatre | 990 | Vice President | 3 | $0 | $0 | View return |
| 2013 | Honolulu Museum of Art | 990 | Trustee | 1 | $0 | $0 | View return |