The Thompson Family Foundation Inc logo

The Thompson Family Foundation Inc

Private foundation · Grantmaker New York, NY EIN: 06-1194385 Website

The Thompson Family Foundation Inc is a private foundation based in New York, New York. Its 2025 filing reports 143 grants totaling $24,111,751 to charitable organizations, including recipients in New York and other states.

The Thompson Family Foundation Inc at a glance

In short: The Thompson Family Foundation Inc gave $24.1M across 143 grants in 2025 (avg $169K), mostly in New York. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$24,111,751
+41.5% vs 2024
Grants made (2025)
143
+18.2% vs 2024
Average grant
$168,614
+19.7% vs 2024
Median grant
$50,000
Total assets
$533,563,968
+17.7% vs 2024
Primary geography
New York (83% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

How to apply to The Thompson Family Foundation Inc

Accepts unsolicited proposals
No
How to Apply

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 1 Rockefeller Plaza Fl 21, New York, NY 10020
Phone: (212) 370-1570

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Thompson Family Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Memorial Sloan-Kettering Cancer Center: $2.0MMemorial Sloan-KetteringCancer Center$2.0MStudio Museum in Harlem: $1.3MStudio Museum in Harlem$1.3MCentral Park Conservancy: $1.1MCentral Park Conservancy$1.1MMystic Seaport: $1.1MMystic Seaport$1.1MPioneer Works Center for Art & Innovation: $1.1MPioneer Works Center for Art &Innovation$1.1MThe Joyce Theater Foundation Inc: $1.0MThe Joyce Theater FoundationInc$1.0MBrigham & Women's Hospital Inc: $948KBrigham & Women's Hospital Inc$948KAmerican Committee for Weizmann Institute: $720KAmerican Committee forWeizmann Institute$720KMalaghan Institute of Medical Research: $600KMalaghan Institute of MedicalResearch$600KMuseum of the City of New York: $600KMuseum of the City of New York$600K

The largest 2025 recipient was Memorial Sloan-Kettering Cancer Center ($2.0M). Together the top 10 received $10.5M.

Grant Size Distribution

440 grants across all recorded years

199<$50K48$50–100K110$100–250K45$250–500K17$500K–1M21$1–5M$5M+

The most common grant size was under $50K: 199 grants of 440 (45%).

Geographic Focus

Where this funder awards grants

In 2025, 83% of grant dollars went to recipients in New York, 5% to Massachusetts, and 5% to Connecticut. The filing also lists 3% for recipients whose state is unspecified and 1% for Ohio.

Grant Distribution by State

17states

Share of 2025 grant dollars across all 143 itemized grants.

Cities

New YorkBrooklynFishers IslandKatonahNew LondonBedfordBostonKansas CityOld LymeSalisburyChicagoColumbusFishers IsleLong Island CityMontgomeryMysticNew CanaanOssiningQueensRochester

How The Thompson Family Foundation Inc gives

  • 72% of 2025 grantees were also funded in 2024. Method
  • Giving grew 32% from 2022 to 2025. Method
  • In 2025 it paid out 92% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$10M$20M$30M17 grants2021 52 grants2022 107 grants2023 121 grants2024 143 grants2025

From 2021 to 2025, annual grant giving ranged from $9.3M (2021) to $24.1M (2025). In 2025 it made 143 grants totaling $24.1M.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Memorial Sloan-Kettering Cancer Center New York, NYTo aid the donee organization in carrying out its exempt functions.$2,048,241
Studio Museum in Harlem New York, NYTo aid the donee organization in carrying out its exempt functions.$1,250,000
Central Park Conservancy New York, NYTo aid the donee organization in carrying out its exempt functions.$1,150,000
Mystic Seaport Mystic, CTTo aid the donee organization in carrying out its exempt functions.$1,100,000
Pioneer Works Center for Art & Innovation Brooklyn, NYTo aid the donee organization in carrying out its exempt functions.$1,100,000
The Joyce Theater Foundation Inc New York, NYTo aid the donee organization in carrying out its exempt functions.$1,000,000
Brigham & Women's Hospital Inc Boston, MATo aid the donee organization in carrying out its exempt functions.$948,160
American Committee for Weizmann Institute New York, NYTo aid the donee organization in carrying out its exempt functions.$720,000
Malaghan Institute of Medical Research To aid the donee organization in carrying out its exempt functions.$600,000
Museum of the City of New York New York, NYTo aid the donee organization in carrying out its exempt functions.$600,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$533,563,968$109,217,326$24,887,977$24,111,751143$24,863,725$105,239,891$27,095,682
2024$453,472,181$13,146,477$25,094,680$17,044,395121$17,805,057$10,456,013$25,666,236
2023$460,988,467$10,525,175$17,024,366$14,983,686107$16,019,227$8,108,010$24,327,254
2022$468,863,914$16,737,927$15,271,949$18,274,27452$18,926,443$14,148,561$28,402,559
2021$474,303,616$74,140,597$8,699,283$9,329,96117—$72,407,413$22,450,074

Under IRS private-foundation payout rules, The Thompson Family Foundation Inc reported a distributable amount of $27.1M for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated October 2026.

Mission & Focus Areas

The foundation’s 2023 filing describes its direct charitable activity as below-market-rate lending through The New York Pooled PRI Fund LLC to organizations working with and on behalf of low-income New Yorkers. Its 2025 grants went to organizations whose work includes cancer care and research, arts and culture, parks, food assistance, and other areas.

The grantees describe their own missions in varied terms. Memorial Sloan-Kettering Cancer Center says it works in cancer prevention, treatment, and cure through patient care, outreach, research, and education. The Museum of the City of New York says it fosters understanding of urban life by celebrating, documenting, and interpreting the city. Theatre for a New Audience describes its work as bringing Shakespeare and other playwrights into dialogue with diverse authors and forms of world theatre. City Parks Foundation says it works to invigorate parks through sports, arts, community-building, and education programs.

Grantmaking

In 2025, the foundation made 143 grants totaling $24,111,751. Grant amounts ranged from $5,000 to $2,048,241, with a median of $50,000. The largest reported grants included $2,048,241 to Memorial Sloan-Kettering Cancer Center, $1,250,000 to Studio Museum in Harlem, $1,150,000 to Central Park Conservancy, and $1,100,000 each to Mystic Seaport and Pioneer Works Center for Art & Innovation. Other large grants included $1,000,000 to The Joyce Theater Foundation Inc and $948,160 to Brigham & Women’s Hospital Inc. The filing states that these grants were to aid the recipient organizations in carrying out their exempt functions.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Amanda JT Riegel as president and director, Charles AY Thompson as vice president and director, and Jim Kallman as treasurer and director.

The Thompson Family Foundation Inc is led by Amanda Jt Riegel, President & Director on every filing since 2021; none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Amanda Jt Riegel

    President & Director

    On filings since 2021

    5 hrs/week

    No compensation reported

  • Charles Ay Thompson

    Vice President & Director

    On filings since 2021

    5 hrs/week

    No compensation reported

  • Jim Kallman

    Treasurer & Director

    Director → Treasurer & Director, 2023

    On filings since 2021

    5 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Thompson Family Foundation Inc

How much does The Thompson Family Foundation Inc give each year?

The Thompson Family Foundation Inc gave $24.1M across 143 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $17.0M across 121 grants.

What is The Thompson Family Foundation Inc's typical grant size?

The Thompson Family Foundation Inc's median grant in 2025 was $50,000, and its average grant was $168,614, across 143 grants on its 2025 IRS Form 990-PF.

Where does The Thompson Family Foundation Inc give grants?

The Thompson Family Foundation Inc gives mostly in New York: 83% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (5%) and Connecticut (5%). The most frequent recipient cities were New York, NY (75 grants), Brooklyn, NY (12 grants), Bronx, NY (3 grants) and New Canaan, CT (2 grants).

Does The Thompson Family Foundation Inc give general operating support?

Not in 2025: none of the 143 grants with a stated purpose on The Thompson Family Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support.

Who are The Thompson Family Foundation Inc's largest grantees?

The Thompson Family Foundation Inc's largest 2025 grantees include Memorial Sloan-Kettering Cancer Center ($2,048,241), Studio Museum in Harlem ($1,250,000) and Central Park Conservancy ($1,150,000), according to its 2025 IRS Form 990-PF. Together they received 18% of its itemized 2025 grant dollars.

How large is The Thompson Family Foundation Inc?

The Thompson Family Foundation Inc reported $533.6M in total assets on its 2025 IRS Form 990-PF. It paid out $24.9M in qualifying distributions that year, against a required minimum of $27.1M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does The Thompson Family Foundation Inc fund?

The foundation’s 2023 filing describes its direct charitable activity as below-market-rate lending through The New York Pooled PRI Fund LLC to organizations working with and on behalf of low-income New Yorkers. See mission & focus areas ↑

How do I apply for a grant from The Thompson Family Foundation Inc?

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Thompson Family Foundation Inc's EIN?

The Thompson Family Foundation Inc's EIN (Employer Identification Number) is 06-1194385. IRS Form 990 filing data is available on this page for 2021–2025.

Does The Thompson Family Foundation Inc accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2021 (received by the IRS October 13, 2021)
  2. Updated Form 990-PF for fiscal year 2022 (received by the IRS October 13, 2022)
  3. Updated Form 990-PF for fiscal year 2023 (received by the IRS January 15, 2024)
  4. Updated Form 990-PF for fiscal year 2024 (received by the IRS January 13, 2025)
  5. Updated Form 990-PF for fiscal year 2025 (received by the IRS January 23, 2026)
  6. IRS filings on file for fiscal years 2021–2025

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Cite this profile

Grantable. (2026). The Thompson Family Foundation Inc funder profile. GrantGraph. Retrieved October 22, 2026, from https://grantable.co/funders/the-thompson-family-foundation-inc-morg_5ce6e579ed6e4dd29847026d35c8a718

BibTeX
@misc{grantable_061194385_2026,
  author       = {{Grantable}},
  title        = {{The Thompson Family Foundation Inc funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-thompson-family-foundation-inc-morg_5ce6e579ed6e4dd29847026d35c8a718},
  note         = {Accessed 2026-10-22. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Thompson Family Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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