| 2023 | MIT Fund | | $14,776,995 | Other | irs_990 | CHARITABLE |
| 2023 | Indigenous Environmental Network | | $40,000 | Other | irs_990 | CHARITABLE |
| 2023 | The Velma Fund | | $14,776,954 | Other | irs_990 | CHARITABLE |
| 2023 | Conservation Law Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2023 | Cambridge in America | | $150,000 | Other | irs_990 | CHARITABLE |
| 2023 | New Venture Fund | | $40,000 | Other | irs_990 | CHARITABLE |
| 2023 | The Pink Fund | | $40,000 | Other | irs_990 | CHARITABLE |
| 2023 | Groundswell International | | $55,000 | Other | irs_990 | CHARITABLE |
| 2023 | Grassroots International | | $70,000 | Other | irs_990 | CHARITABLE |
| 2023 | Network Of Engaged International Donors Giving Circle Via Grapevineorg | | $5,000 | Other | irs_990 | CHARITABLE |
| 2023 | Proteus Fund | | $40,000 | Other | irs_990 | CHARITABLE |
| 2023 | Global Greengrants Fund | | $100,000 | Other | irs_990 | CHARITABLE |
| 2023 | Tides Center | | $40,000 | Other | irs_990 | CHARITABLE |
| 2023 | Silverlining | | $100,000 | Other | irs_990 | CHARITABLE |
| 2023 | Trustees Of Tufts College | | $30,000 | Other | irs_990 | CHARITABLE |
| 2023 | Health Care Without Harm | | $20,000 | Other | irs_990 | CHARITABLE |
| 2023 | Prime Coalition Inc | | $500,000 | Other | irs_990 | CHARITABLE |
| 2023 | Expect Miracles Foundation | | $25,000 | Other | irs_990 | CHARITABLE |
| 2022 | Ifwhenhow | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | Trustees Of Tufts College | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | Center For Effective Altruism | | $80,000 | Other | irs_990 | CHARITABLE |
| 2022 | Cambridge in America | | $150,000 | Other | irs_990 | CHARITABLE |
| 2022 | Indigenous Environmental Network | | $40,000 | Other | irs_990 | CHARITABLE |
| 2022 | Equal Justice Initiative | | $45,000 | Other | irs_990 | CHARITABLE |
| 2022 | Proteus Fund | | $75,000 | Other | irs_990 | CHARITABLE |
| 2022 | New Venture Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | Hopewell Fund | | $140,000 | Other | irs_990 | CHARITABLE |
| 2022 | Mit Cancer Research Fund | | $1,000,000 | Other | irs_990 | CHARITABLE |
| 2022 | Silverlining | | $100,000 | Other | irs_990 | CHARITABLE |
| 2022 | Tides Center | | $145,000 | Other | irs_990 | CHARITABLE |
| 2022 | Global Greengrants Fund | | $100,000 | Other | irs_990 | CHARITABLE |
| 2022 | Network Of Engaged International Donors Giving Circle Via Grapevineorg | | $12,458 | Other | irs_990 | CHARITABLE |
| 2022 | Grassroots International | | $70,000 | Other | irs_990 | CHARITABLE |
| 2022 | Health Care Without Harm | | $25,000 | Other | irs_990 | CHARITABLE |
| 2022 | Us Charitable Gift Trust | | $300,000 | Other | irs_990 | CHARITABLE |
| 2022 | Innocence Project | | $45,000 | Other | irs_990 | CHARITABLE |
| 2022 | Abortion Care Network | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | The Brigid Alliance | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | Conservation Law Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2022 | Groundswell International | | $40,000 | Other | irs_990 | CHARITABLE |
| 2022 | Centre for the Governance of AI, Inc. | | $80,000 | AI governance, policy, and advocacy | org_reported | thank the Casey and Family Foundation for donating $80,000 |
| 2021 | Groundswell International | | $40,000 | Other | irs_990 | CHARITABLE |
| 2021 | Hopewell Fund | | $60,000 | Other | irs_990 | CHARITABLE |
| 2021 | Silverlining | | $100,000 | Other | irs_990 | CHARITABLE |
| 2021 | Proteus Fund | | $75,000 | Other | irs_990 | CHARITABLE |
| 2021 | Equal Justice Initiative | | $40,000 | Other | irs_990 | CHARITABLE |
| 2021 | Mit Cancer Research Fund | | $800,000 | Other | irs_990 | CHARITABLE |
| 2021 | Trustees Of Tufts College | | $75,000 | Other | irs_990 | CHARITABLE |
| 2021 | Expect Miracles Foundation | | $22,000 | Other | irs_990 | CHARITABLE |
| 2021 | National Network Of Abortion Funds | | $70,000 | Other | irs_990 | CHARITABLE |
| 2021 | Innocence Project | | $40,000 | Other | irs_990 | CHARITABLE |
| 2021 | Grassroots International | | $70,000 | Other | irs_990 | CHARITABLE |
| 2021 | Tides Center | | $40,000 | Other | irs_990 | CHARITABLE |
| 2021 | Cambridge in America | | $150,000 | Other | irs_990 | CHARITABLE |
| 2021 | Health Care Without Harm | | $50,000 | Other | irs_990 | CHARITABLE |
| 2021 | Us Charitable Gift Trust | | $59,000 | Other | irs_990 | CHARITABLE |
| 2021 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2021 | New Venture Fund | | $100,000 | Other | irs_990 | CHARITABLE |
| 2021 | The Pink Fund | | $35,000 | Other | irs_990 | CHARITABLE |
| 2021 | Conservation Law Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2021 | Indigenous Environmental Network | | $40,000 | Other | irs_990 | CHARITABLE |
| Nov 20, 2021 | Lightcone Infrastructure | Survival and Flourishing Fund | $500,000 | Research hubs | sff | General Support of Lightcone Infrastructure |
| 2020 | Trustees Of Tufts College | | $75,000 | Other | irs_990 | CHARITABLE |
| 2020 | Conservation Law Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2020 | Hopewell Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2020 | Expect Miracles Foundation | | $40,000 | Other | irs_990 | CHARITABLE |
| 2020 | Rainforest Foundation | | $75,000 | Other | irs_990 | CHARITABLE |
| 2020 | Gaia Foundation | | $3,000 | Other | irs_990 | CHARITABLE |
| 2020 | Proteus Fund | | $75,000 | Other | irs_990 | CHARITABLE |
| 2020 | Groundswell International | | $65,000 | Other | irs_990 | CHARITABLE |
| 2020 | Rural Advancement Foundation | | $25,000 | Other | irs_990 | CHARITABLE |
| 2020 | Silverlining | | $200,000 | Other | irs_990 | CHARITABLE |
| 2020 | New Venture Fund | | $180,000 | Other | irs_990 | CHARITABLE |
| 2020 | Us Charitable Gift Trust | | $250,000 | Other | irs_990 | CHARITABLE |
| 2020 | Tides Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2020 | Center For Effective Altruism | | $100,000 | Other | irs_990 | CHARITABLE |
| 2020 | Americans for Oxford | | $80,000 | Other | irs_990 | CHARITABLE |
| 2020 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2020 | Cambridge in America | | $150,000 | Other | irs_990 | CHARITABLE |
| 2020 | Bluegreen Alliance | | $40,000 | Other | irs_990 | CHARITABLE |
| 2020 | The Pink Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2020 | Grassroots International | | $65,000 | Other | irs_990 | CHARITABLE |
| 2020 | Indigenous Environmental Network | | $65,000 | Other | irs_990 | CHARITABLE |
| 2020 | Equal Justice Initiative | | $40,000 | Other | irs_990 | CHARITABLE |
| 2020 | National Network Of Abortion Funds | | $110,000 | Other | irs_990 | CHARITABLE |
| 2020 | Innocence Project | | $40,000 | Other | irs_990 | CHARITABLE |
| 2020 | Tides Center | | $40,000 | Other | irs_990 | CHARITABLE |
| 2020 | Mit Cancer Research Fund | | $800,000 | Other | irs_990 | CHARITABLE |
| 2019 | Mit Cancer Research Fund | | $800,000 | Other | irs_990 | CHARITABLE |
| 2019 | Equal Justice Initiative | | $40,000 | Other | irs_990 | CHARITABLE |
| 2019 | Center For Effective Altruism | | $160,000 | Other | irs_990 | CHARITABLE |
| 2019 | Tides Center | | $20,000 | Other | irs_990 | CHARITABLE |
| 2019 | Cambridge in America | | $150,000 | Other | irs_990 | CHARITABLE |
| 2019 | Conservation Law Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2019 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2019 | Americans for Oxford | | $80,000 | Other | irs_990 | CHARITABLE |
| 2019 | New Venture Fund | | $100,000 | Other | irs_990 | CHARITABLE |
| 2019 | The Boston Foundation | | $4,250 | Other | irs_990 | CHARITABLE |
| 2019 | Trustees Of Tufts College | | $75,000 | Other | irs_990 | CHARITABLE |
| 2019 | Proteus Fund | | $75,000 | Other | irs_990 | CHARITABLE |
| 2019 | Innocence Project | | $20,000 | Other | irs_990 | CHARITABLE |
| 2019 | Machine Intelligence Research Institute | | $50,000 | Foundations | irs_990 | CHARITABLE |
| 2019 | Rural Advancement Foundation | | $40,000 | Other | irs_990 | CHARITABLE |
| 2019 | Forest Trends | | $30,000 | Other | irs_990 | CHARITABLE |
| 2019 | Us Charitable Gift Trust | | $640,000 | Other | irs_990 | CHARITABLE |
| 2019 | Grassroots International | | $65,000 | Other | irs_990 | CHARITABLE |
| 2019 | Health Care Without Harm | | $30,000 | Other | irs_990 | CHARITABLE |
| 2019 | Groundswell International | | $40,000 | Other | irs_990 | CHARITABLE |
| 2019 | Hopewell Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2018 | Rural Advancement Foundation | | $80,000 | Other | irs_990 | CHARITABLE |
| 2018 | Mit Cancer Research Fund | | $800,000 | Other | irs_990 | CHARITABLE |
| 2018 | Forest Trends | | $60,000 | Other | irs_990 | CHARITABLE |
| 2018 | The Boston Foundation | | $1,500 | Other | irs_990 | CHARITABLE |
| 2018 | Prime Impact Fund | | $1,000,000 | Other | irs_990 | CHARITABLE |
| 2018 | Americans for Oxford | | $150,000 | Other | irs_990 | CHARITABLE |
| 2018 | Trustees Of Tufts College | | $30,000 | Other | irs_990 | CHARITABLE |
| 2018 | Indigenous Environmental Network | | $50,000 | Other | irs_990 | CHARITABLE |
| 2018 | Mothers Out Front | | $5,000 | Other | irs_990 | CHARITABLE |
| 2018 | Silent Spring Institiute | | $50,000 | Other | irs_990 | CHARITABLE |
| 2018 | The Sunrise Project | | $12,000 | Other | irs_990 | CHARITABLE |
| 2018 | Earthjustice Fund | | $125,000 | Other | irs_990 | CHARITABLE |
| 2018 | Groundswell International | | $40,000 | Other | irs_990 | CHARITABLE |
| 2018 | Berkeley Existential Risk Initiative | | $160,000 | Other existential risk | irs_990 | CHARITABLE |
| 2018 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2018 | Grassroots International | | $60,000 | Other | irs_990 | CHARITABLE |
| 2018 | Conservation Law Foundation | | $125,000 | Other | irs_990 | CHARITABLE |
| 2018 | New Venture Fund | | $130,000 | Other | irs_990 | CHARITABLE |
| 2018 | Cambridge in America | | $130,000 | Other | irs_990 | CHARITABLE |
| 2017 | Mit Tegmark Ai Safety Research | | $60,000 | Technical AI safety research | irs_990 | CHARITABLE |
| 2017 | New Venture Fund | | $80,000 | Other | irs_990 | CHARITABLE |
| 2017 | Democracy Now | | $10,000 | Other | irs_990 | CHARITABLE |
| 2017 | Cambridge in America | | $65,000 | Other | irs_990 | CHARITABLE |
| 2017 | Rural Advancement Foundation | | $50,000 | Other | irs_990 | CHARITABLE |
| 2017 | Machine Intelligence Research Institute | | $10,000 | Foundations | irs_990 | CHARITABLE |
| 2017 | Forest Trends | | $40,000 | Other | irs_990 | CHARITABLE |
| 2017 | Mothers Out Front | | $5,000 | Other | irs_990 | CHARITABLE |
| 2017 | Americans for Oxford | | $75,000 | Other | irs_990 | CHARITABLE |
| 2017 | Grassroots International | | $25,000 | Other | irs_990 | CHARITABLE |
| 2017 | Mit Curtis Marble (1963) Instrumentation Fund | | $1,000,000 | Other | irs_990 | CHARITABLE |
| 2017 | Center For Effective Usa Inc | | $15,000 | Other | irs_990 | CHARITABLE |
| 2017 | Silent Spring Institiute | | $50,000 | Other | irs_990 | CHARITABLE |
| 2017 | Pesticide Action Network | | $40,000 | Other | irs_990 | CHARITABLE |
| 2017 | Bluegreen Alliance | | $50,000 | Other | irs_990 | CHARITABLE |
| 2017 | Conservation Law Foundation | | $75,000 | Other | irs_990 | CHARITABLE |
| 2017 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2017 | Earthjustice Fund | | $75,000 | Other | irs_990 | CHARITABLE |
| 2017 | Us Charitable Gift Trust | | $200,000 | Other | irs_990 | CHARITABLE |
| Dec 2017 | Berkeley Existential Risk Initiative | | $100,000 | Other existential risk | vipul_donations | |
| 2016 | Every Voice Center | | $40,000 | Other | irs_990 | CHARITABLE |
| 2016 | Environmental Defense Fund | | $25,000 | Other | irs_990 | CHARITABLE |
| 2016 | Indigenous Environmental Network | | $35,000 | Other | irs_990 | CHARITABLE |
| 2016 | The Sunrise Project | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Conservation Law Foundation | | $75,000 | Other | irs_990 | CHARITABLE |
| 2016 | Mothers Out Front | | $10,000 | Other | irs_990 | CHARITABLE |
| 2016 | Organic Consumers Association Regeneration International | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Rethink Media | | $40,000 | Other | irs_990 | CHARITABLE |
| 2016 | Food Solutions Ne Unh Fdn | | $40,000 | Other | irs_990 | CHARITABLE |
| 2016 | Star Island Corporation | | $25,000 | Other | irs_990 | CHARITABLE |
| 2016 | Woods Hole Oceanographic Institution | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Silent Spring Institiute | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Doctors Without Borders | | $200,000 | Other | irs_990 | CHARITABLE |
| 2016 | Earthjustice Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Harvard Conservation Trust | | $100,000 | Other | irs_990 | CHARITABLE |
| 2016 | Agroecology Fund New Venture Fund | | $50,000 | Other | irs_990 | CHARITABLE |
| 2016 | Mit Curtis Marble (1963) Instrumentation Fund | | $800,000 | Other | irs_990 | CHARITABLE |
| 2015 | Doctors Without Borders | | $150,000 | Other | irs_990 | CHARITABLE |
| — | Machine Intelligence Research Institute | | $60,000 | Foundations | org_reported | Past top contributor; cumulative contributions |
| — | 80,000 Hours | | ~$262,000* | EA infrastructure | org_reported | Named on 80,000 Hours' public list of donors |