Nuclear Threat Initiative Inc
Funding Overview
From IRS Form 990 filings · 2019–2026
Total received
$70.9M
Foundation funders
50
Grants recorded
150
Years covered
2019–2026
Who funds Nuclear Threat Initiative Inc?
Nuclear Threat Initiative Inc is funded by 50 grantmakers, led by The Susan Thompson Buffett Foundation ($21.0M), Silicon Valley Community Foundation ($14.3M), Peter G Peterson Foundation ($11.2M). In total, IRS Form 990 filings record $70.9M in grants to Nuclear Threat Initiative Inc between 2019–2026.
Show all 50 funders
Funding over time
Grant dollars and counts received per year
From 2019 to 2026, annual grant giving ranged from $25K (2026) to $16.2M (2020). In 2026 it made 1 grant totaling $25K.
What grants has Nuclear Threat Initiative Inc received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2026 | Barrie and Deedee Wigmore Foundation | GENERAL SUPPORT | $25,000 |
| 2025 | Peter G Peterson Foundation | TO SUPPORT RESEARCH AND INTERNATIONAL NETWORKS TO ADVANCE NUCLEAR SAFETY AND SECURITY. | $2,250,000 |
| 2025 | Carnegie Corporation of New York | For core support of NTI's nuclear program | $542,000 |
| 2025 | The Backcountry Charitable Trust | GENERAL | $50,000 |
| 2025 | The Dozen Dimes Foundation | GENERAL FUND | $50,000 |
| 2025 | Jeong H Kim Foundation | GENERAL SUPPORT | $30,000 |
| 2025 | The Colleen & Sam Nunn Family Foundation | CHARITABLE | $25,000 |
| 2025 | Barrie and Deedee Wigmore Foundation | GENERAL SUPPORT | $25,000 |
| 2025 | Effective Ventures Foundation USA Inc | GENERAL NONPROFIT SUPPORT | $15,006 |
| 2025 | Marshall & Yuko Hung Foundation | CHARITABLE | $10,000 |
| 2025 | Season of Change Foundation | GENERAL SUPPORT | $250 |
| 2025 | JPMorgan Chase Foundation | MATCHING CONTRIBUTION (GENERAL OPERATING SUPPORT) | $240 |
| 2024 | Peter G Peterson Foundation | 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. | $1,500,000 |
| 2024 | The Sherwood Foundation | OPPENHEIMER-OSCAR CAMPAIGN | $1,000,000 |
| 2024 | Carnegie Corporation of New York | For core support of NTI's nuclear program | $758,000 |
| 2024 | Peter G Peterson Foundation | TO SUPPORT INTERNATIONAL NETWORKS TO ADVANCE NUCLEAR SAFETY AND SECURITY. | $500,000 |
| 2024 | Gates Foundation | GLOBAL HEALTH AND DEVELOPMENT PUBLIC AWARENESS AND ANALYSIS; PNEUMONIA & PANDEMIC PREPAREDNESS | $210,618 |
| 2024 | Hess Foundation Inc | ARTIFICIAL INTELLIGENCE AND EMERGING TECHNOLOGY PROGRAMS | $187,500 |
| 2024 | Ploughshares Fund Inc | 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. | $177,000 |
| 2024 | Southern Company Charitable Foundation | SUPPORT OPERATING EXPENSES | $100,000 |
| 2024 | The Dozen Dimes Foundation | GENERAL FUND | $50,000 |
| 2024 | Vanguard Charitable Endowment Program | FOR RECIPIENT'S EXEMPT PURPOSE | $44,500 |
| 2024 | Community Foundation Santa Cruz County | GENERAL OPERATING SUPPORT | $40,000 |
| 2024 | The Goodnow Fund | GENERAL SUPPORT | $25,000 |
| 2024 | The Colleen & Sam Nunn Family Foundation | CHARITABLE | $25,000 |
| 2024 | The Schaffner Family Foundation | PROTECT THE ENVIRONMENT | $25,000 |
| 2024 | Barrie and Deedee Wigmore Foundation | GENERAL SUPPORT | $25,000 |
| 2024 | Effective Ventures Foundation USA Inc | REDUCING EXISTENTIAL RISKS | $22,926 |
| 2024 | National Philanthropic Trust | PUBLIC, SOCIETAL BENEFIT | $15,000 |
| 2024 | The Bockus Brown Family Foundation | CONTRIBUTIONN TO THE DONEE TO REDUCE NUCLEAR AND BIOLOGICAL THREATS TO HUMANITY | $10,000 |
Showing 30 most recent of 150 recorded grants.
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Frequently Asked Questions
Who funds Nuclear Threat Initiative Inc?
Nuclear Threat Initiative Inc is funded by 50 grantmakers, led by The Susan Thompson Buffett Foundation ($21.0M), Silicon Valley Community Foundation ($14.3M), Peter G Peterson Foundation ($11.2M). In total, IRS Form 990 filings record $70.9M in grants to Nuclear Threat Initiative Inc between 2019–2026.
Who is Nuclear Threat Initiative Inc's largest funder?
The Susan Thompson Buffett Foundation is the largest recorded funder of Nuclear Threat Initiative Inc, with $21.0M across 3 grants (2020–2022).
How much grant funding has Nuclear Threat Initiative Inc received?
IRS 990 filings record $70.9M in grants to Nuclear Threat Initiative Inc across 150 grants from 50 funders between 2019–2026. Filings are published on a delay, so recent grants may not appear yet.
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Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
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