| 2024 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2024 | Korean-American Community Foundation Inc. | 990 | Director | 0.25 | $0 | $0 | View return |
| 2024 | The Washington Center for Internships and Academic Seminars | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Friends of Children and Families Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Catlin Gabel School | 990 | Member | 1 | $0 | $0 | View return |
| 2023 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2023 | Korean-American Community Foundation Inc. | 990 | Director | 0.25 | $0 | $0 | View return |
| 2023 | Water Education Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2023 | USA Climbing | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Friends of Children and Families Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Mcyhl Inc. | 990 | Treasurer | 5 | $850 | $0 | View return |
| 2022 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2022 | Mobile Big Game Fishing Club Inc | 990 | VP Programs | 4 | $0 | $0 | View return |
| 2022 | Water Education Foundation | 990 | Director | - | $0 | $0 | View return |
| 2022 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2022 | Korean-American Community Foundation Inc. | 990 | Director | 1.12 | $0 | $0 | View return |
| 2021 | Water Education Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2021 | Korean-American Community Foundation Inc. | 990 | Director | 1.15 | $0 | $0 | View return |
| 2021 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2021 | Mobile Big Game Fishing Club Inc | 990 | VP Programs | 4 | $0 | $0 | View return |
| 2021 | Mcyhl Inc. | 990 | Treasurer | 5 | $0 | $0 | View return |
| 2020 | Alum Rock Counseling Center Inc. | 990 | Director Of Quality Assura | 40 | $110,631 | $0 | View return |
| 2020 | Renner Fire Rescue Inc. | 990EZ | Director | 5 | $0 | - | View return |
| 2020 | Water Education Foundation | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Mobile Big Game Fishing Club Inc | 990 | VP Programs | 4 | $0 | $0 | View return |
| 2020 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2020 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2020 | An Opera Theatre | 990EZ | Secretary | 2 | $0 | $0 | View return |
| 2020 | Korean-American Community Foundation Inc. | 990 | Director | 0.7 | $0 | $0 | View return |
| 2019 | Alum Rock Counseling Center Inc. | 990 | Director Of Quality Assura | 40 | $119,858 | $0 | View return |
| 2019 | Korean Baptist Church | 990 | President | 40 | $36,000 | $0 | View return |
| 2019 | Mcyhl Inc. | 990 | Treasurer | 5 | $850 | $0 | View return |
| 2019 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2019 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2019 | La Canada Junior Baseball Association | 990EZ | Board Member | 1 | $0 | - | View return |
| 2019 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2018 | Alum Rock Counseling Center Inc. | 990 | Director Of Quality Assurance | 40 | $108,248 | $0 | View return |
| 2018 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2018 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2018 | Online Publishers Association Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Downtown Center Business Improvement District Management Corporation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Family Caregiver Alliance | 990 | Member | 1 | $0 | $0 | View return |
| 2018 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2018 | La Canada Junior Baseball Association | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2017 | Downtown Center Business Improvement District Management Corporation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Renner Fire Rescue Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2017 | La Canada Junior Baseball Association | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Family Caregiver Alliance | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2016 | Wood County Hospital Assn | 990 | Physician | 40 | $242,445 | $0 | View return |
| 2016 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2016 | Mobile Big Game Fishing Club Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Renner Fire Rescue Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Downtown Center Business Improvement District Management Corporation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Family Caregiver Alliance | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2016 | La Canada Junior Baseball Association | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Renner Fire Rescue Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Koh Charitable Foundation | 990PF | Director | 0 | $0 | - | View return |
| 2015 | Los Angeles Tourism & Convention Board | 990 | Director | 0.15 | $0 | $0 | View return |
| 2015 | Family Caregiver Alliance | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Renner Fire Rescue Inc. | 990EZ | Director | 10 | $0 | - | View return |
| 2013 | Catlin Gabel School | 990 | Member | 1 | $0 | $0 | View return |
| 2013 | Saxton Liberty PTA Inc | 990EZ | Vice President | 2 | $0 | $0 | View return |