| 2024 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2024 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Cleveland Zoological Society | 990 | Emeritus Director | 1 | $0 | $0 | View return |
| 2023 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2023 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2022 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2021 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2021 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2020 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2020 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2019 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2019 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | Cleveland Zoological Society | 990 | Life Director | 1 | $0 | $0 | View return |
| 2018 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2018 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Cleveland Zoological Society | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2017 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2017 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2016 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | Cleveland Zoological Society | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2016 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Cleveland Zoological Society | 990 | Life Trustee | 1 | $0 | $0 | View return |
| 2015 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2015 | Playhouse Square Foundation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2015 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2014 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Cleveland Zoological Society | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Playhouse Square Foundation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | Hawken School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | The Sydell & Arnold Miller Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2013 | The Miller Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Cleveland Zoological Society | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Playhouse Square Foundation | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2013 | Hawken School | 990 | Trustee | 1 | - | - | View return |