The Jatoma Charitable Foundation

Private foundation · Grantmaker Mamaroneck, NY EIN: 13-7198355

The Jatoma Charitable Foundation is a private foundation based in Mamaroneck, New York. Its 2025 filing reports grants to organizations including a university, a maritime museum, a hospital, a theater company, and charitable organizations.

The Jatoma Charitable Foundation at a glance

In short: The Jatoma Charitable Foundation gave $191K across 39 grants in 2025 (avg $5K), top state Connecticut. 21% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$190,550
-34.9% vs 2024
Grants made (2025)
39
-9.3% vs 2024
Average grant
$4,886
-28.2% vs 2024
Median grant
$2,000
Total assets
$1,392,926
+8.5% vs 2024
New grantees (estimate)
21% first-time grantees (8 of 39, 2025)
Primary geography
Connecticut (40% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Jatoma Charitable Foundation

Accepts unsolicited proposals
No
How to Apply

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

Contact

Mailing address: 519 Alda Road, Mamaroneck, NY 10543
Phone: (212) 840-3456

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

Who The Jatoma Charitable Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Yale University: $42KYale University$42KMystic Seaport Museum Inc: $25KMystic Seaport Museum Inc$25KUJA-Federation of New York Inc: $20KUJA-Federation of New York Inc$20KColt Coeur Theater Company: $10KColt Coeur Theater Company$10KCongregation Emannuel: $10KCongregation Emannuel$10KGreenwich Hospital: $5KGreenwich Hospital$5KJohns Hopkins University: $5KJohns Hopkins University$5KTufts University: $5KTufts University$5KAmerican National Red Cross: $5KAmerican National Red Cross$5KAmerican Cancer Society: $4KAmerican Cancer Society$4K

The largest 2025 recipient was Yale University ($42K). Together the top 10 received $131K.

Grant Size Distribution

224 grants across all recorded years

221<$50K3$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 221 grants of 224 (99%).

Geographic Focus

Where this funder awards grants

In 2025, 40% of grant dollars went to recipients in Connecticut and 37% to recipients in New York. Massachusetts accounted for 5%, Maine 3%, and California 3%.

Grant Distribution by State

20states

Share of 2025 grant dollars across all 39 itemized grants.

Cities

New YorkGreenwichBostonSan FranciscoWashingtonArlingtonBrooklynJerichoLong Island CityMontpelierMysticNew HavenRocklandBay ShoreBridgtonMamaroneckMedfordOaklandRyeScarsdale

Is The Jatoma Charitable Foundation open to new grantees?

21%

first-time grantees, 2025

In 2025, 8 of 39 grantees (21%) were first-time recipients. First grants averaged $3K; repeat grants $5K. How we count

Medians: $3K first-time, $2K repeat.

  • 74% of 2025 grantees were also funded in 2024. Method
  • Giving fell 37% from 2022 to 2025. Method
  • In 2025 it paid out 260% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). 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$100K$200K$300K$400K19 grants2020 50 grants2021 46 grants2022 46 grants2023 43 grants2024 39 grants2025

From 2020 to 2025, annual grant giving ranged from $164K (2020) to $301K (2022). In 2025 it made 39 grants totaling $191K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Yale University New Haven, CTGeneral Purpose$42,250
Mystic Seaport Museum Inc Mystic, CTGeneral Purpose$25,000
UJA-Federation of New York Inc New York, NYGeneral Purpose$20,000
Colt Coeur Theater Company Brooklyn, NYGeneral Purpose$10,000
Congregation Emannuel Rye, NYGeneral Purpose$10,000
Various Other Charities Under 1000 Each Long Island City, NYGeneral Purpose$8,350
Greenwich Hospital Greenwich, CTGeneral Purpose$5,000
Johns Hopkins University Baltimore, MDGeneral Purpose$5,000
Tufts University Medford, MAGeneral Purpose$5,000
American National Red Cross Washington, DCGeneral Purpose$4,500
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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$1,392,926$333,673$224,254$190,55039$199,526$90,945$76,704
2024$1,283,507$401,060$318,379$292,50043$299,145$131,826$79,056
2023$1,234,542$261,908$309,436$276,30046$286,595$13,846$70,051
2022$1,248,354$318,105$343,885$300,90046$313,726$42,046$71,727
2021$1,294,328$452,382$276,231$264,66050—$190,811$73,147
2020$1,100,477$78,719$198,502$163,55019—$56,495$60,908

Under IRS private-foundation payout rules, The Jatoma Charitable Foundation reported a distributable amount of $77K for 2025 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants show support for a range of organizations. For example, Mystic Seaport Museum says it strives to inspire an enduring connection to the American maritime experience. The American Cancer Society says its mission is to improve the lives of people with cancer and their families through advocacy, research, and patient support. Grad Bag says it supports underserved college-bound students and advances sustainability by redistributing lightly used college dorm essentials to students in need. The Island Institute says it works with island and coastal communities to navigate climate and economic change.

Grantmaking

In 2025, the foundation made 39 grants totaling $190,550. Grants ranged from $1,000 to $42,250, with a median grant of $2,000. Its largest reported grants included $42,250 to Yale University, $25,000 to Mystic Seaport Museum, and $20,000 to UJA-Federation of New York. Other notable grants included $10,000 each to Colt Coeur Theater Company and Congregation Emmanu-El, and $5,000 each to Greenwich Hospital, Johns Hopkins University, and Tufts University.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists J Robert Mann Jr, Margaret Berenblum, Anthony E Mann, and Jack R Mann III as trustees.

The Jatoma Charitable Foundation's 2025 filing lists 4 officers; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Anthony E. Mann

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • J. Robert Mann Jr.

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • Jack R. Mann III

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • Margaret Berenblum

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "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 Jatoma Charitable Foundation

How much does The Jatoma Charitable Foundation give each year?

The Jatoma Charitable Foundation gave $191K across 39 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $293K across 43 grants.

What is The Jatoma Charitable Foundation's typical grant size?

The Jatoma Charitable Foundation's median grant in 2025 was $2,000, and its average grant was $4,886, across 39 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Jatoma Charitable Foundation that year got $3K on average.

Where does The Jatoma Charitable Foundation give grants?

The Jatoma Charitable Foundation's top state is Connecticut, with 40% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest state was New York (37%). The most frequent recipient cities were New York, NY (6 grants), Greenwich, CT (4 grants), San Francisco, CA (2 grants) and Boston, MA (2 grants).

Does The Jatoma Charitable Foundation give general operating support?

Yes: 100% of The Jatoma Charitable Foundation's 2025 grants with a stated purpose (39 of 39) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are The Jatoma Charitable Foundation's largest grantees?

The Jatoma Charitable Foundation's largest 2025 grantees include Yale University ($42,250), Mystic Seaport Museum Inc ($25,000) and UJA-Federation of New York Inc ($20,000), according to its 2025 IRS Form 990-PF. Together they received 46% of its itemized 2025 grant dollars.

How large is The Jatoma Charitable Foundation?

The Jatoma Charitable Foundation reported $1.4M in total assets on its 2025 IRS Form 990-PF. It paid out $200K in qualifying distributions that year, against a required minimum of $77K (roughly 5% of its investment assets).

What does The Jatoma Charitable Foundation fund?

No mission statement for the foundation is provided. Its 2025 grants show support for a range of organizations. For example, Mystic Seaport Museum says it strives to inspire an enduring connection to the American maritime experience. See mission & focus areas ↑

How do I apply for a grant from The Jatoma Charitable Foundation?

The foundation states that it 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 Jatoma Charitable Foundation's EIN?

The Jatoma Charitable Foundation's EIN (Employer Identification Number) is 13-7198355. IRS Form 990 filing data is available on this page for 2020–2025.

Does The Jatoma Charitable Foundation 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 September 2026.

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS October 13, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS October 14, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS April 13, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS September 12, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS April 8, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS April 9, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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Cite this profile

Grantable. (2026). The Jatoma Charitable Foundation funder profile. GrantGraph. Retrieved October 17, 2026, from https://grantable.co/funders/the-jatoma-charitable-foundation-morg_80113bdee81c4c25a475f87bcc49ec23

BibTeX
@misc{grantable_137198355_2026,
  author       = {{Grantable}},
  title        = {{The Jatoma Charitable Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-jatoma-charitable-foundation-morg_80113bdee81c4c25a475f87bcc49ec23},
  note         = {Accessed 2026-10-17. 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 Jatoma Charitable Foundation'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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