| 2024 | Signal Technology Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | The Rheumatism Society of the District of Columbia | 990EZ | Director | 1 | $0 | - | View return |
| 2024 | Center for Democracy and Technology | 990 | Director | 0.5 | $0 | $0 | View return |
| 2024 | Consumers Union of United States Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | American University of Beirut | 990 | Trustee | 3 | $0 | $0 | View return |
| 2023 | Digital Public Library of America Inc C/O Boston Public Library | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Signal Technology Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Center for Democracy and Technology | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Adventurers and Scientists for Conservation DBA Adventure Scientists | 990 | Chair | 2 | $0 | $0 | View return |
| 2023 | American University of Beirut | 990 | Trustee | 3 | $0 | $0 | View return |
| 2023 | NPR International Operations Inc. | 990 | Chair (Beg. 03/26/24) | 0.03 | $0 | $0 | View return |
| 2023 | NPR Foundation | 990 | President & CEO (From 03/24) | 1 | $0 | $0 | View return |
| 2023 | Adventurers and Scientists for Conservation DBA Adventure Scientists | 990 | Chair | 2 | $0 | $0 | View return |
| 2023 | The Rheumatism Society of the District of Columbia | 990EZ | Director | 1 | $0 | - | View return |
| 2023 | Consumers Union of United States Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | National Public Radio Inc. | 990 | President & CEO (From 03/24) | 38.97 | $0 | $0 | View return |
| 2022 | Adventurers and Scientists for Conservation DBA Adventure Scientists | 990 | Chair | 2 | $0 | $0 | View return |
| 2022 | Digital Public Library of America Inc C/O Boston Public Library | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Consumers Union of United States Inc | 990 | Director Thru - 10/19/22 | 2 | $0 | $0 | View return |
| 2022 | Friends of the Elderly Inc. | 990EZ | Clerk | 22.5 | $0 | $0 | View return |
| 2022 | American University of Beirut | 990 | Trustee | 3 | $0 | $0 | View return |
| 2022 | National Public Radio Inc. | 990 | President & CEO (Beg. 03/24) | 38.97 | $0 | $0 | View return |
| 2022 | The Rheumatism Society of the District of Columbia | 990EZ | Director | 1 | $0 | - | View return |
| 2021 | Wikimedia Foundation Org | 990 | Executive Director (Thru 4/21) | 40 | $789,495 | $0 | View return |
| 2021 | Young Presidents Organization Barbary Coast Chapter | 990 | Member Engagement Officer | 1.5 | $0 | $0 | View return |
| 2021 | Digital Public Library of America Inc C/O Boston Public Library | 990 | Executive Director | 2 | $0 | $0 | View return |
| 2021 | American University of Beirut | 990 | Trustee | 3 | $0 | $0 | View return |
| 2021 | Friends of the Elderly Inc. | 990EZ | Clerk | 22.5 | $0 | $0 | View return |
| 2020 | Wikimedia Foundation Org | 990 | Executive Director (Thru 4/30/21) | 40 | $406,339 | $0 | View return |
| 2020 | Digital Public Library of America Inc C/O Boston Public Library | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Young Presidents Organization Barbary Coast Chapter | 990 | Member Engagement Officer | 1.5 | $0 | $0 | View return |
| 2020 | The Sunlight Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Friends of the Elderly Inc. | 990EZ | Clerk | 22.5 | $0 | $0 | View return |
| 2020 | American University of Beirut | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | Wikimedia Foundation Org | 990 | CEO/Executive Director | 40 | $387,770 | $0 | View return |
| 2019 | Digital Public Library of America Inc C/O Boston Public Library | 990 | Director (Appointed 10/18) | 1 | $0 | $0 | View return |
| 2019 | The Sunlight Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | American University of Beirut | 990 | Trustee (Eff 3/20) | 1 | $0 | $0 | View return |
| 2019 | Friends of the Elderly Inc. | 990EZ | Clerk | 22.5 | $0 | $0 | View return |
| 2018 | Wikimedia Foundation Org | 990 | CEO/Executive Director | 40 | $374,658 | $0 | View return |
| 2018 | The Sunlight Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Friends of the Elderly Inc. | 990EZ | Clerk | 22.5 | $0 | $0 | View return |
| 2017 | Wikimedia Foundation Org | 990 | Executive Director | 40 | $358,871 | $0 | View return |
| 2017 | Friends of the Elderly Inc. | 990EZ | Clerk | 0 | $0 | $0 | View return |
| 2016 | Wikimedia Foundation Org | 990 | Executive Director | 40 | $307,141 | $0 | View return |
| 2016 | Friends of the Elderly Inc. | 990EZ | Clerk | 0 | $0 | $0 | View return |
| 2015 | Wikimedia Foundation Org | 990 | Executive Director - From Apr/16 | 40 | $166,353 | $0 | View return |
| 2015 | Friends of the Elderly Inc. | 990EZ | Clerk | 0 | $0 | $0 | View return |
| 2014 | Madison Community Montessori School Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2014 | Friends of the Elderly Inc. | 990EZ | Clerk | 0 | $0 | $0 | View return |
| 2013 | Friends of the Elderly Inc. | 990EZ | Clerk | 0 | $0 | $0 | View return |