| 2023 | Consensus Building Institute Inc. | 990 | Director (Until 11/2023) | 1 | $0 | $0 | View return |
| 2022 | Young Voices on Climate Change Inc | 990EZ | Director | 2 | $0 | $0 | View return |
| 2022 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Woodwell Climate Research Center Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Woodwell Climate Research Center Inc | 990 | Director | 4 | $0 | $0 | View return |
| 2020 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Woodwell Climate Research Center Inc | 990 | Chair | 4 | $0 | $0 | View return |
| 2018 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | Consensus Building Institute Inc. | 990 | Director | 1 | $1,875 | $0 | View return |
| 2017 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | Woodwell Climate Research Center Inc | 990 | Chair | 4 | $0 | $0 | View return |
| 2016 | Consensus Building Institute Inc. | 990 | Director | 1 | $1,875 | $0 | View return |
| 2016 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Woodwell Climate Research Center Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2016 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2015 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Woodwell Climate Research Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2014 | Woodwell Climate Research Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Consensus Building Institute Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Center for Ecotechnology Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Woodwell Climate Research Center Inc | 990 | Director | 1 | $0 | $0 | View return |