| 2025 | The International Iguana Foundation | 990 | Secretary | 4 | $0 | $0 | View return |
| 2024 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The International Iguana Foundation | 990EZ | Secretary | 4 | $0 | $0 | View return |
| 2024 | Center for Plant Conservation Inc. | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2024 | The Eden Project USA Inc | 990 | Director/President | 0.5 | $0 | $0 | View return |
| 2024 | San Diego Society of Natural History Balboa Park | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2024 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Center for Plant Conservation Inc. | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2023 | The Eden Project USA Inc | 990 | Director/President | 0.5 | $0 | $0 | View return |
| 2023 | San Diego Society of Natural History Balboa Park | 990 | Vice Chairman | 1 | $0 | $0 | View return |
| 2023 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The International Iguana Foundation | 990EZ | Board Member | 1 | $0 | $0 | View return |
| 2023 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | The Eden Project USA Inc | 990 | Director/Pre | 0.5 | $0 | $0 | View return |
| 2022 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2022 | San Diego Society of Natural History Balboa Park | 990 | Secretary | 1 | $0 | $0 | View return |
| 2022 | The International Iguana Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2021 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The International Iguana Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | San Diego Society of Natural History Balboa Park | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $393,081 | $0 | View return |
| 2020 | The International Iguana Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | The Turtle Survival Alliance Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Center for Plant Conservation Inc. | 990 | Trustee | 2 | $0 | $0 | View return |
| 2020 | San Diego Society of Natural History Balboa Park | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $269,145 | $0 | View return |
| 2019 | The International Iguana Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $259,718 | $0 | View return |
| 2018 | The International Iguana Foundation | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $246,882 | $0 | View return |
| 2017 | The International Iguana Foundation | 990EZ | Board Member | 1 | $0 | - | View return |
| 2016 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $238,328 | $0 | View return |
| 2016 | The International Iguana Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2015 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $243,099 | $0 | View return |
| 2015 | The International Iguana Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2014 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $225,380 | $0 | View return |
| 2014 | The International Iguana Foundation | 990EZ | President | 2 | $0 | - | View return |
| 2013 | Zoological Society of San Diego DBA San Diego Zoo Global | 990 | Chief Conservation Officer | 50 | $219,608 | $0 | View return |
| 2013 | The International Iguana Foundation | 990EZ | President | 2 | $0 | - | View return |