| 2021 | The Big D Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Big D Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | 4-Ct Corp | 990 | Chairman, Executive Chair | 10 | $0 | $0 | View return |
| 2020 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | 4-Ct Corp | 990 | Chairman, Exec Chair | 20 | $0 | $0 | View return |
| 2018 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Ekwanok Country Club | 990 | Trustee | 2 | $0 | $0 | View return |
| 2018 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2017 | National Outdoor Leadership School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2017 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2016 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | National Outdoor Leadership School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2016 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2015 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2015 | National Outdoor Leadership School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Donna L Kendall Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Earthwatch Expeditions Inc | 990 | Member | 1 | $0 | $0 | View return |
| 2015 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2014 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Connecticut Institute for Refugees and Immigrants Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | National Outdoor Leadership School | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2014 | Keeping Identities Safe Inc | 990 | Chairman Emeritus | 2 | $0 | $0 | View return |
| 2014 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2013 | Connecticut Institute for Refugees and Immigrants Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | American-Russian Cultural Cooperation Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Mariinsky Foundation of America Inc. | 990 | Chairman Emeritus | 0.5 | $0 | $0 | View return |
| 2013 | Southwestern Regional Communications Center Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2011 | The Big D Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2010 | The Big D Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |