funder-graph › Recipients
Who funds Nuclear Threat Initiative Inc
EIN 52-2289435 · Washington, DC · NTEE Q41
Nuclear Threat Initiative Inc of Washington, DC (EIN 52-2289435) was named as a grant recipient by 50 funders in 160 grants paid totaling $81,748,531 in tax years 2017–2025, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$81,748,531
160 grants paid
Funders
50
distinct grantmakers
Tax years
2017–2025
as reported by funders
Approved for future payment
$9,060,629
not included in grants received
Funders
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Grants
The 171 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $2,250,000 | paid | TO SUPPORT RESEARCH AND INTERNATIONAL NETWORKS TO ADVANCE NUCLEAR SAFETY AND SECURITY. | 202620489349100207 |
| 2025 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $1,000,000 | approved, future | As a final grant for core support of NTI's nuclear program | 202641769349100209 |
| 2025 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $542,000 | paid | For core support of NTI's nuclear program | 202641769349100209 |
| 2025 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $250,000 | approved, future | TO SUPPORT RESEARCH AND INTERNATIONAL NETWORKS TO ADVANCE NUCLEAR SAFETY AND SECURITY. | 202620489349100207 |
| 2025 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $187,050 | paid | For grant recipient's exempt purposes | 202601389349301700 |
| 2025 | The Backcountry Charitable Trust | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL | 202621959349100407 |
| 2025 | The Dozen Dimes Foundation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL FUND | 202611349349103131 |
| 2025 | Donor Advised Charitable Giving Inc | Nuclear Threat Initiative Washington, DC | A | $49,450 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202611199349300601 |
| 2025 | Vanguard Charitable Endowment Program | Nuclear Threat Initiative Inc Washington, DC | A | $43,000 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | Jeong H Kim Foundation C/O Bessemer Trust Na | Nuclear Threat Initiative Inc Washington, DC | B | $30,000 | paid | GENERAL SUPPORT | 202631209349101848 |
| 2025 | The Colleen & Sam Nunn Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | CHARITABLE | 202630859349100503 |
| 2025 | Barrie and Deedee Wigmore Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | GENERAL SUPPORT | 202542099349100114 |
| 2025 | Effective Ventures Foundation USA Inc | The Nuclear Threat Initiative Washington, DC | A | $15,006 | paid | GENERAL NONPROFIT SUPPORT | 202601359349300640 |
| 2025 | Marshall & Yuko Hung Foundation | Nuclear Threat Initiative Washington, DC | B | $10,000 | paid | CHARITABLE | 202620279349100802 |
| 2025 | American Online Giving Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | A | $8,733 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | American Online Giving Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | A | $8,733 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2024 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,500,000 | paid | TO SUPPORT NTI'S EFFORT TO IMPROVE GLOBAL NUCLEAR SECURITY THROUGH RESEARCH ON NUCLEAR MATERIALS SECURITY AND THE ENGAGEMENT AND DEVELOPMENT OF LEADERSHIP NETWORKS OF NUCLEAR EXPERTS AND POLICYMAKERS WORLDWIDE. | 202540459349101004 |
| 2024 | The Sherwood Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,000,000 | paid | OPPENHEIMER-OSCAR CAMPAIGN | 202521279349102157 |
| 2024 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $758,000 | paid | For core support of NTI's nuclear program | 202531929349101203 |
| 2024 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $502,150 | paid | For grant recipient's exempt purposes | 202521349349310887 |
| 2024 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $500,000 | paid | TO SUPPORT INTERNATIONAL NETWORKS TO ADVANCE NUCLEAR SAFETY AND SECURITY. | 202540459349101004 |
| 2024 | Gates Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $210,618 | paid | GLOBAL HEALTH AND DEVELOPMENT PUBLIC AWARENESS AND ANALYSIS; PNEUMONIA & PANDEMIC PREPAREDNESS | 202523189349103667 |
| 2024 | Hess Foundation Inc | Nuclear Threat Initiative Washington, DC | B | $187,500 | paid | ARTIFICIAL INTELLIGENCE AND EMERGING TECHNOLOGY PROGRAMS | 202512889349101601 |
| 2024 | Ploughshares Fund Inc | Nuclear Threat Initiative Washington, DC | A | $177,000 | paid | 1. TO SUPPORT STAFF TIME DEDICATED TO THE INVOLVEMENT ON THE CORE TEAM FOR THE STOP THE NUCLEAR ARMS RACE ROUNDTABLE.2. TO SUPPORT THE DEVELOPMENT OF A NARRATIVE STRATEGY FOR SHIFTING POLITICAL WILL IN FAVOR OF NUCLEAR RISK REDUCTION AND THE ELIMINATION OF NUCLEAR WEAPONS.3. TO SUPPORT THE GENDER CHAMPIONS IN NUCLEAR POLICY (GCNP) INITIATIVE. | 202531359349315978 |
| 2024 | Southern Company Charitable Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | SUPPORT OPERATING EXPENSES | 202513219349105406 |
| 2024 | The Dozen Dimes Foundation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL FUND | 202522189349100507 |
| 2024 | Vanguard Charitable Endowment Program | Nuclear Threat Initiative Inc Washington, DC | A | $44,500 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202511349349313096 |
| 2024 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $40,000 | paid | GENERAL OPERATING SUPPORT | 202533219349309013 |
| 2024 | The Jurie Foundation | The Nuclear Threat Initiative Washington, DC | B | $30,000 | paid | GENERAL SUPPORT | 202511279349103396 |
| 2024 | Donor Advised Charitable Giving Inc | Nuclear Threat Initiative Washington, DC | A | $29,800 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202541069349300729 |
| 2024 | The Schaffner Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | PROTECT THE ENVIRONMENT | 202503089349101355 |
| 2024 | The Goodnow Fund | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | GENERAL SUPPORT | 202542969349101169 |
| 2024 | The Colleen & Sam Nunn Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | CHARITABLE | 202540879349100414 |
| 2024 | Barrie and Deedee Wigmore Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | GENERAL SUPPORT | 202411779349100006 |
| 2024 | Effective Ventures Foundation USA Inc | Nuclear Threat Initiative Inc Washington, DC | A | $22,926 | paid | REDUCING EXISTENTIAL RISKS | 202541349349311654 |
| 2024 | American Online Giving Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | A | $19,472 | paid | GENERAL SUPPORT | 202530159349302758 |
| 2024 | National Philanthropic Trust | Nuclear Threat Initiative Inc Washington, DC | A | $15,000 | paid | PUBLIC, SOCIETAL BENEFIT | 202511339349301311 |
| 2024 | The Bockus Brown Family Foundation | Nuclear Threat Initiative Washington, DC | B | $10,000 | paid | CONTRIBUTIONN TO THE DONEE TO REDUCE NUCLEAR AND BIOLOGICAL THREATS TO HUMANITY | 202521429349100817 |
| 2024 | Nuclear Energy Institute Inc | Nuclear Threat Initiative Inc Philadelphia, PA | A | $10,000 | paid | CONTRIBUTION | 202503049349301585 |
| 2024 | Network for Good | Nuclear Threat Initiative Inc Washington, DC | A | $6,698 | paid | UNRESTRICTED | 202513039349301631 |
| 2024 | The Malcolm Hewitt Wiener Foundation C/O Millburn Ridgefield LLC | Nuclear Threat Initiative Washington, DC | B | $5,000 | paid | GLOBAL BIOLOGICAL POLICY AND PROGRAMS INITIATIVE | 202523179349102717 |
| 2024 | Morgan Stanley Global Impact Funding Trust Inc | Nuclear Threat Initiative Inc Washington, DC | A | $5,000 | paid | UNRESTRICTED GENERAL SUPPORT | 202503239349300435 |
| 2024 | Jpmorgan Chase Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,900 | paid | MATCHING CONTRIBUTION (GENERAL OPERATING SUPPORT) | 202531699349100608 |
| 2024 | The Pfizer Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $500 | paid | MATCHING GIFTS | 202503119349101850 |
| 2023 | Silicon Valley Community Foundation | Nuclear Threat Initiative Inc Washington, DC | A | $7,831,500 | paid | International Development | 202413129349304911 |
| 2023 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $3,000,000 | paid | TO SUPPORT NTI'S EFFORT TO IMPROVE GLOBAL NUCLEAR SECURITY THROUGH RESEARCH ON NUCLEAR MATERIALS SECURITY AND THE ENGAGEMENT AND DEVELOPMENT OF LEADERSHIP NETWORKS OF NUCLEAR EXPERTS AND POLICYMAKERS WORLDWIDE. | 202420469349100112 |
| 2023 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $1,300,000 | approved, future | For core support of NTI's nuclear program | 202442259349101009 |
| 2023 | Bright Horizon Foundation C/O Vicky Dionne Kb Financial | Nuclear Threat Initiative Washington, DC | B | $1,000,000 | paid | NONPARTISAN GLOBAL SECURITY ORGANIZATION FOCUSED ON REDUCING NUCLEAR AND BIOLOGICAL THREATS IMPERILING HUMANITY | 202413209349100926 |
| 2023 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $900,000 | paid | in support of general operations | 202423189349103932 |
| 2023 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $900,000 | paid | For general support | 202442259349101009 |
| 2023 | Bill & Melinda Gates Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $790,000 | paid | GLOBAL HEALTH AND DEVELOPMENT PUBLIC AWARENESS AND ANALYSIS; PNEUMONIA & PANDEMIC PREPAREDNESS | 202433189349102233 |
| 2023 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $564,100 | paid | For grant recipient's exempt purposes | 202441369349301334 |
| 2023 | Bill & Melinda Gates Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $210,618 | approved, future | GLOBAL HEALTH AND DEVELOPMENT PUBLIC AWARENESS AND ANALYSIS; PNEUMONIA & PANDEMIC PREPAREDNESS | 202433189349102233 |
| 2023 | Hess Foundation Inc | Nuclear Threat Initiative Washington, DC | B | $187,500 | paid | ARTIFICIAL INTELLIGENCE AND EMERGING TECHNOLOGY PROGRAMS | 202442889349100119 |
| 2023 | Founders Pledge Inc | Nuclear Threat Initiative (nti) Washington, DC | C | $150,000 | paid | BIOSECURITY PROGRAMS | 202402359349100515 |
| 2023 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | TO IMPROVE GLOBAL BIOSECURITY BY ESTABLISHING A NEW INTERNATIONAL ENTITY FOR OVERSIGHT AND COLLABORATION ON SECURITY AND BIOTECHNOLOGY. | 202420469349100112 |
| 2023 | Southern Company Charitable Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | SUPPORT OPERATING EXPENSES | 202413209349108046 |
| 2023 | Schwab Charitable Fund | Nuclear Threat Initiative Washington, DC | A | $90,050 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202411039349301716 |
| 2023 | Ploughshares Fund Inc | Nuclear Threat Initiative Washington, DC | B | $80,000 | paid | SEE SCH O FOR PURPOSE OF GRANT | 202410749349301236 |
| 2023 | The Dozen Dimes Foundation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL FUND | 202401989349100410 |
| 2023 | Marshall & Yuko Hung Foundation | Nuclear Threat Initiative Washington, DC | B | $45,000 | paid | CHARITABLE | 202420559349100662 |
| 2023 | Effective Ventures Foundation USA Inc | The Nuclear Threat Initiative Washington, DC | A | $34,069 | paid | GENERAL NONPROFIT SUPPORT | 202411359349306381 |
| 2023 | American Online Giving Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | A | $32,068 | paid | GENERAL SUPPORT | 202410469349300741 |
| 2023 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $30,000 | paid | FOR GENERAL OPERATING SUPPORT | 202443189349304809 |
| 2023 | The Colleen & Sam Nunn Family Foundation | Nuclear Threat Initiative Washington, DC | B | $26,000 | paid | CHARITABLE | 202440969349100724 |
| 2023 | The Goodnow Fund | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | GENERAL SUPPORT | 202433189349100223 |
| 2023 | The Schaffner Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | PROTECT THE ENVIRONMENT | 202403109349101170 |
| 2023 | Barrie and Deedee Wigmore Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | GENERAL SUPPORT | 202311869349100616 |
| 2023 | Ploughshares Fund Inc | Nuclear Threat Initiative Inc Washington, DC | B | $14,500 | paid | SEE SCH O FOR PURPOSE OF GRANT | 202410749349301236 |
| 2023 | Vanguard Charitable Endowment Program | Nuclear Threat Initiative Inc Washington, DC | A | $14,000 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202441359349309439 |
| 2023 | Favaro Family Foundation Inc C/O Elizabeth Favaro | Nuclear Threat Initiative Washington, DC | B | $10,000 | paid | GENERAL SUPPORT | 202402829349101305 |
| 2023 | The Malcolm Hewitt Wiener Foundation C/O Millburn Ridgefield Corporation | Nuclear Threat Initiative Inc Washington, DC | B | $10,000 | paid | GLOBAL BIOLOGICAL POLICY & PROGRAMS INITIATIVE | 202443209349106969 |
| 2023 | The Bockus Brown Family Foundation | Nuclear Threat Initiative Washington, DC | B | $10,000 | paid | CONTRIBUTIONN TO THE DONEE TO REDUCE NUCLEAR AND BIOLOGICAL THREATS TO HUMANITY | 202412829349101271 |
| 2023 | Good Ventures Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $9,750 | paid | TECH POLICY FELLOWSHIP SUPPORT | 202441369349105564 |
| 2023 | Ploughshares Fund Inc | Nuclear Threat Initiative Inc Washington, DC | B | $9,450 | paid | SEE SCH O FOR PURPOSE OF GRANT | 202410749349301236 |
| 2023 | Network for Good | Nuclear Threat Initiative Inc Washington, DC | A | $8,391 | paid | UNRESTRICTED | 202413059349302646 |
| 2023 | Turner Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $5,000 | paid | FURTHER ORG'S EXEMPT PURPOSE | 202441839349100609 |
| 2023 | Schwartz Family Foundation C/O Alan Schwartz Guggenheim Partners | Nuclear Threat Initiative Inc Washington, DC | B | $2,500 | paid | TO SUPPORT THE GENERAL PURPOSE FUND | 202443099349100844 |
| 2023 | The Pfizer Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $500 | paid | MATCHING GIFTS | 202412839349100921 |
| 2023 | Jpmorgan Chase Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $200 | paid | GENERAL OPERATING SUPPORT | 202443059349101309 |
| 2023 | Amazonsmile Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $122 | paid | GENERAL SUPPORT | 202540919349100629 |
| 2022 | The Susan Thompson Buffett Foundation | Nuclear Threat Initiative Washington, DC | B | $6,965,626 | paid | PROJECT SUPPORT | 202341329349101219 |
| 2022 | Good Ventures Foundation | Nuclear Threat Initiative Washington, DC | B | $1,250,000 | paid | GLOBAL CATASTROPHIC BIOLOGICAL RISK REDUCTION WORK | 202341359349105939 |
| 2022 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,250,000 | paid | TO SUPPORT NTI'S EFFORT TO IMPROVE GLOBAL NUCLEAR SECURITY THROUGH RESEARCH ON NUCLEAR MATERIALS SECURITY AND THE ENGAGEMENT AND DEVELOPMENT OF LEADERSHIP NETWORKS OF NUCLEAR EXPERTS AND POLICYMAKERS WORLDWIDE. | 202340459349100439 |
| 2022 | Hirji Wigglesworth Family Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,200,000 | paid | GLOBAL SECURITY | 202313199349103611 |
| 2022 | Bright Horizon Foundation C/O Vicky Dionne Kb Financial | Nuclear Threat Initiative Washington, DC | B | $1,000,000 | paid | NONPARTISAN GLOBAL SECURITY ORGANIZATION FOCUSED ON REDUCING NUCLEAR AND BIOLOGICAL THREATS IMPERILING HUMANITY | 202323199349106142 |
| 2022 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $900,000 | paid | For general support | 202342269349100709 |
| 2022 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $900,000 | approved, future | For general support | 202342269349100709 |
| 2022 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $762,700 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $762,700 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2022 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $600,000 | paid | in support of general operations | 202313179349104401 |
| 2022 | The David and Lucile Packard Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $500,000 | paid | SPECIAL OPPORTUNITIES | 202303149349102680 |
| 2022 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $400,000 | paid | TO IMPROVE GLOBAL BIOSECURITY BY ESTABLISHING A NEW INTERNATIONAL ENTITY FOR OVERSIGHT AND COLLABORATION ON SECURITY AND BIOTECHNOLOGY. | 202340459349100439 |
| 2022 | New Venture Fund | Nuclear Threat Initiative Washington, DC | A | $128,640 | paid | PUBLIC SAFETY, DISASTER PREPAREDNESS AND RELIEF | 202323149349302362 |
| 2022 | Hess Foundation Inc | Nuclear Threat Initiative Washington, DC | B | $120,000 | paid | AN UNRESTRICTED GRANT TO FURTHER THE DONEE'S EXEMPT PURPOSE. | 202312789349100206 |
| 2022 | Jeong H Kim Foundation C/O Bessemer Trust Na | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | GENERAL SUPPORT | 202311259349101606 |
| 2022 | Southern Company Charitable Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | BUILDING A SAFER WORLD AGAINST NUCLEAR AND BIOLOGICAL THREATS | 202343199349107224 |
| 2022 | Ploughshares Fund Inc | Nuclear Threat Initiative Inc Washington, DC | B | $75,000 | paid | SEE SCH O FOR PURPOSE OF GRANT | 202331219349302313 |
| 2022 | Founders Pledge Inc | Nuclear Threat Initiative (nti) Washington, DC | C | $58,299 | paid | SUPPORT FOR BIOSECURITY PROGRAM | 202301999349100115 |
| 2022 | The Goodnow Fund | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL SUPPORT | 202303129349101425 |
| 2022 | Schwab Charitable Fund | Nuclear Threat Initiative Washington, DC | A | $41,800 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202330939349300403 |
| 2022 | Centre for Effective Altruism USA Inc | The Nuclear Threat Initiative (nti) Washington, DC | A | $30,974 | paid | BIOSECURITY PROGRAM | 202311339349300516 |
| 2022 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $30,000 | paid | FOR GENERAL OPERATING SUPPORT | 202333199349329668 |
| 2022 | The Colleen & Sam Nunn Family Foundation | Nuclear Threat Initiative Washington, DC | B | $26,000 | paid | CHARITABLE | 202310949349101006 |
| 2022 | American Online Giving Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | A | $25,897 | paid | GENERAL SUPPORT | 202340469349301209 |
| 2022 | The Schaffner Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | PROTECT THE ENVIRONMENT | 202323049349100237 |
| 2022 | Marshall & Yuko Hung Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | CHARITABLE | 202330469349100238 |
| 2022 | The Malcolm Hewitt Wiener Foundation C/O Millburn Ridgefield Corporation | Nuclear Threat Initiative Inc Washington, DC | B | $20,000 | paid | GLOBAL BIOLOGICAL POLICY & PROGRAMS INITIATIVE | 202323199349101772 |
| 2022 | Nuclear Energy Institute Inc | Nuclear Threat Initiative Inc Philadelphia, PA | A | $20,000 | paid | SPONSORSHIP | 202323039349301937 |
| 2022 | Network for Good | Nuclear Threat Initiative Inc Washington, DC | A | $18,120 | paid | UNRESTRICTED | 202342939349300849 |
| 2022 | The Blackbaud Giving Fund | Nuclear Threat Initiative Inc Washington, DC | A | $16,529 | paid | GENERAL SUPPORT | 202312409349300046 |
| 2022 | Vanguard Charitable Endowment Program | Nuclear Threat Initiative Inc Washington, DC | A | $8,500 | paid | For recipient's exempt purpose | 202331359349303108 |
| 2022 | The Pfizer Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | C | $2,000 | paid | MATCHING GIFTS | 202313079349100411 |
| 2022 | Amazonsmile Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $107 | paid | GENERAL SUPPORT | 202313119349100141 |
| 2022 | Duke Energy Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $100 | paid | EMPLOYEE MATCHING GIFT DONATION | 202333139349101323 |
| 2021 | The Susan Thompson Buffett Foundation | Nuclear Threat Initiative Washington, DC | B | $7,027,375 | paid | PROJECT SUPPORT | 202211339349103906 |
| 2021 | Good Ventures Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $2,000,000 | paid | GLOBAL HEALTH SECURITY INDEX PROJECT | 202231329349104238 |
| 2021 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $1,800,000 | approved, future | FOR GENERAL SUPPORT | 202241899349100304 |
| 2021 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $1,700,000 | paid | TO SUPPORT NTI'S EFFORT TO IMPROVE GLOBAL NUCLEAR SECURITY THROUGH RESEARCH ON NUCLEAR MATERIALS SECURITY AND THE ENGAGEMENT AND DEVELOPMENT OF LEADERSHIP NETWORKS OF NUCLEAR EXPERTS AND POLICYMAKERS WORLDWIDE. | 202200429349100500 |
| 2021 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $1,500,000 | approved, future | in support of general operations. | 202340929349100004 |
| 2021 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $1,350,000 | paid | in support of general operations. | 202340929349100004 |
| 2021 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $675,000 | paid | FOR GENERAL SUPPORT | 202241899349100304 |
| 2021 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $500,000 | approved, future | TO IMPROVE GLOBAL BIOSECURITY BY ESTABLISHING A NEW INTERNATIONAL ENTITY FOR OVERSIGHT AND COLLABORATION ON SECURITY AND BIOTECHNOLOGY. | 202200429349100500 |
| 2021 | Peter G Peterson Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $500,000 | paid | TO IMPROVE GLOBAL BIOSECURITY BY ESTABLISHING A NEW INTERNATIONAL ENTITY FOR OVERSIGHT AND COLLABORATION ON SECURITY AND BIOTECHNOLOGY. | 202200429349100500 |
| 2021 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $243,800 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | Bares Family Foundation | Nuclear Threat Initiative Washington, DC | B | $100,000 | paid | UNRESTRICTED DONATION TO NUCLEAR THREAT INITIATIVE | 202241409349101354 |
| 2021 | Ploughshares Fund Inc | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | SEE SCH O FOR PURPOSE OF GRANT | 202241239349301024 |
| 2021 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | FOR THE PERRY PROJECT'S "AT THE BRINK" PODCAST, SEASON 2 | 202241899349100304 |
| 2021 | National Philanthropic Trust | Nuclear Threat Initiative Inc Washington, DC | A | $60,000 | paid | PUBLIC, SOCIETAL BENEFIT | 202231339349309863 |
| 2021 | The Backcountry Charitable Trust | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | GENERAL | 202222159349100802 |
| 2021 | The Commonwealth Fund | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | Matching gift - for general operating purposes | 202123149349102812 |
| 2021 | Schwab Charitable Fund | Nuclear Threat Initiative Washington, DC | A | $24,500 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202230499349301028 |
| 2021 | Founders Pledge Inc | Nuclear Threat Initiative (nti) Washington, DC | C | $22,610 | paid | BIOSECURITY WORK | 202232349349100823 |
| 2021 | Marshall & Yuko Hung Foundation | Nuclear Threat Initiative Washington, DC | B | $20,000 | paid | CHARITABLE | 202221169349101912 |
| 2021 | Network for Good | Nuclear Threat Initiative Inc Washington, DC | A | $5,866 | paid | UNRESTRICTED | 202212289349300736 |
| 2020 | The Susan Thompson Buffett Foundation | Nuclear Threat Initiative Washington, DC | B | $7,011,477 | paid | PROJECT SUPPORT | 202141339349101639 |
| 2020 | Silicon Valley Community Foundation | Nuclear Threat Initiative Inc Washington, DC | A | $6,500,000 | paid | International Development | 202103199349327615 |
| 2020 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $1,350,000 | paid | in support of general operations. | 202133169349104553 |
| 2020 | Bill & Melinda Gates Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $750,034 | paid | VACCINE DEVELOPMENT | 202143159349100004 |
| 2020 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $675,000 | approved, future | FOR GENERAL SUPPORT | 202131949349100773 |
| 2020 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $363,600 | paid | For grant recipient's exempt purposes | 202121359349300427 |
| 2020 | Bill & Melinda Gates Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $250,011 | approved, future | VACCINE DEVELOPMENT | 202143159349100004 |
| 2020 | New Venture Fund | Nuclear Threat Initiative Washington, DC | A | $110,000 | paid | PUBLIC SAFETY, DISASTER PREPAREDNESS AND RELIEF | 202113169349310971 |
| 2020 | Southern Company Charitable Foundation Inc | Nuclear Threat Initiative Inc Washington, DC | B | $100,000 | paid | FUTURE PAYMENT - 2ND PAYMENT OF A 3 YEAR COMMITMENT TO SUPPORT THE SAM NUNN DISTINGUISHED FELLOW PRGM AND TO BRING OUTSTANDING TALENT FOR THE PURPOSE OF ADVANCING A STRATEGIC PRIORITY OF SEEDING NEW DIRECTIONS IN THREAT REDUCTION. | 202113199349100941 |
| 2020 | Founders Pledge Inc | Nuclear Threat Initiative Washington, DC | B | $100,000 | paid | BIOSECURITY PROGRAM | 202131059349101903 |
| 2020 | Bares Family Foundation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | UNRESTRICTED DONATION TO NUCLEAR THREAT INITIATIVE | 202110469349100526 |
| 2020 | The Malcolm Hewitt Wiener Foundation C/O Millburn Ridgefield Corporation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | POLICY RESEARCH & REFORM | 202103199349103185 |
| 2020 | Michael a Peterson Foundation | Nuclear Threat Initiative Washington, DC | B | $33,000 | paid | To support the Sam Nunn distinguished Fellow Program | 202102889349100320 |
| 2020 | The Schaffner Family Foundation | Nuclear Threat Initiative Washington, DC | B | $25,000 | paid | PROTECT THE ENVIRONMENT | 202101749349100915 |
| 2020 | Centre for Effective Altruism USA Inc | Nuclear Threat Initiative Inc Washington, DC | A | $20,346 | paid | Nuclear security | 202142849349300829 |
| 2020 | John D and Catherine T Macarthur Foundation (consolidated) | Nuclear Threat Initiative Inc Washington, DC | B | $15,000 | paid | in support of a workshop. | 202133169349104553 |
| 2020 | Impactassetsinc | Nuclear Threat Initiative Inc Washington, DC | A | $12,959 | paid | BIOSECURITY PROGRAMME - NOTE | 202133199349315428 |
| 2020 | National Philanthropic Trust | Nuclear Threat Initiative Inc Washington, DC | A | $10,500 | paid | INTERNATIONAL | 202121459349300307 |
| 2020 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $10,000 | paid | GENERAL SUPPORT | 202103199349328570 |
| 2020 | Schwartz Family Foundation C/O Alan Schwartz Guggenheim Partners | Nuclear Threat Initiative Washington, DC | B | $2,500 | paid | TO SUPPORT THE GENERAL PURPOSE FUND | 202143199349104604 |
| 2020 | Prospect Hill Foundation Inc | Nuclear Threat Initiative Washington, DC | B | $1,500 | paid | GENDER CHAMPIONS IN NUCLEAR POLICY RETREAT | 202110579349100101 |
| 2020 | Duke Energy Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $100 | paid | EMPLOYEE MATCHING GIFTS | 202113169349100346 |
| 2020 | Amazonsmile Foundation | Nuclear Threat Initiative Inc Washington, DC | B | $53 | paid | GENERAL SUPPORT | 202113199349100901 |
| 2019 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $1,125,000 | paid | FOR GENERAL SUPPORT | 202031969349101943 |
| 2019 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $675,000 | approved, future | FOR GENERAL SUPPORT | 202031969349101943 |
| 2019 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $148,350 | paid | For grant recipient's exempt purposes | 202041789349301474 |
| 2019 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $60,000 | paid | FOR GENERAL OPERATING SUPPORT AND THE PERRY PROJECT | 202033509349301343 |
| 2019 | Community Foundation Santa Cruz County | Nuclear Threat Initiative Washington, DC | A | $60,000 | paid | FOR GENERAL OPERATING SUPPORT AND THE PERRY PROJECT | 202033509349301343 |
| 2019 | Bares Family Foundation | Nuclear Threat Initiative Washington, DC | B | $50,000 | paid | UNRESTRICTED DONATION TO NUCLEAR THREAT INITIATIVE | 202011659349100201 |
| 2019 | Schwab Charitable Fund | Nuclear Threat Initiative Washington, DC | A | $13,300 | paid | INTERNATIONAL, FOREIGN AFFAIRS | 202010489349300101 |
| 2018 | The Susan Thompson Buffett Foundation | Nuclear Threat Initiative Washington, DC | B | $7,015,083 | paid | PROJECT SUPPORT | 201941349349103199 |
| 2018 | Carnegie Corporation of New York | Nuclear Threat Initiative Inc Washington, DC | B | $1,150,000 | paid | FOR GENERAL SUPPORT AND THE WILLIAM J. PERRY PROJECT | 201911909349100511 |
| 2018 | Hess Foundation Inc | Nuclear Threat Initiative Washington, DC | B | $100,000 | paid | AN UNRESTRICTED GRANT TO FURTHER THE DONEE'S EXEMPT PURPOSE. | 201922559349100222 |
| 2018 | Fidelity Investments Charitable Gift Fund | Nuclear Threat Initiative Inc Washington, DC | A | $38,750 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | Schwab Charitable Fund | Nuclear Threat Initiative Washington, DC | A | $5,100 | paid | INTERNATIONAL/FOREIGN AFFAIRS | 201930459349302018 |
| 2017 | Bill & Melinda Gates Foundation | Nuclear Threat Initiative Washington, DC | B | $250,000 | paid | VACCINE DEVELOPMENT | 201941489349100174 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.