The Dimenna Foundation Inc

Private foundation · Grantmaker Southampton, NY EIN: 06-1534269

The Dimenna Foundation Inc is a private foundation based in Southampton, New York. Its 2023 filing reports grants to organizations in New York and Florida, including cultural, educational, civic, and environmental organizations.

The Dimenna Foundation Inc at a glance

Total assets
$11,971,759
+0.6% vs 2023
Revenue (2024)
$87,694
-91.8% vs 2023
Qualifying distributions (2024)
$5,001
-99.6% vs 2023
Expenses (2024)
$17,918
-98.4% vs 2023
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026.

How to apply to The Dimenna 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: 1280 Meadow Lane, Southampton, NY 11968
Phone: (212) 451-1141

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

Who The Dimenna Foundation Inc funds

How this funder distributes its grants

Grant Size Distribution

133 grants across all recorded years

97<$50K11$50–100K12$100–250K4$250–500K2$500K–1M7$1–5M$5M+

The most common grant size was under $50K: 97 grants of 133 (73%).

Geographic Focus

Where this funder awards grants

The listed 2023 grants include organizations in New York City and Palmetto Bay, Florida.

Grant Distribution by State

9states
+1 more states

Cities

New YorkSouthamptonBrooklynAlexandriaAtlantaDurhamFairfieldLake WorthMiamiWashingtonWellingtonBrooklnLos AngelesPalmetto BaySan DiegoBronxCatskillHarrisLong Island CityPittsburgh

How The Dimenna Foundation Inc gives

  • Giving fell 76% from 2020 to 2023. Method
  • In 2024 it paid out 1% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$2M$4M$6M52 grants2020 50 grants2021 27 grants2022 4 grants2023 0 grants2024

From 2020 to 2023, annual grant giving ranged from $1.1M (2023) to $4.8M (2020). In 2023 it made 4 grants totaling $1.1M.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Harlem Children's Zone New York, NYGeneral Operating Purpose$1,000,000
New York Historical Society New York, NYGeneral Operating Purpose$100,000
Center for Educational Innovation New York, NYGeneral Operating Purpose$15,000
The Everglades Foundation Palmetto Bay, FLGeneral Operating Purpose$10,000
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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
2024$11,971,759$87,694$17,918——$5,001$75,277$618,828
2023$11,901,983$1,064,058$1,140,340$1,125,0004$1,128,842$34,560$521,315
2022$11,978,265$3,216,962$3,270,545$3,250,00027$3,254,583$7,230$572,974
2021$12,032,598$3,442,914$4,097,387$4,075,00050$4,079,669$10,728$649,754
2020$12,687,071$4,207,170$4,839,994$4,781,25052—$7,487$684,523

Under IRS private-foundation payout rules, The Dimenna Foundation Inc reported a distributable amount of $619K for 2024 — 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 listed grantees illustrate the kinds of organizations it has supported. The New-York Historical Society describes its mission as collecting, preserving, and interpreting material on U.S. history, particularly the history of New York State and City. Center for Educational Innovation says it works to improve public education, while the National Center for Civic Innovation says it helps adapt initiatives that improve government and nonprofit performance. The Everglades Foundation describes its mission as restoring and protecting the Everglades through science, advocacy, and education.

Grantmaking

In 2023, the foundation reported four grants totaling $1,125,000. Listed examples include $100,000 to the New-York Historical Society, $15,000 to Center for Educational Innovation, $15,000 to the National Center for Civic Innovation, and $10,000 to the Everglades Foundation. These examples do not account for the full reported grant total. The available information does not establish a typical grant size.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists JOSEPH A DIMENNA as president and KEVIN P CANNON as secretary.

The Dimenna Foundation Inc is led by Joseph A. Dimenna, President on every filing since 2020; none of the 2 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Joseph A. Dimenna

    President

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Kevin P. Cannon

    Secretary

    On filings since 2020

    0.3 hrs/week

    No compensation reported

Former officers (1)
  • Former: Diana Dimenna (2020–2022) — Director

Data from IRS Form 990 filings, 2020–2024. "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 Dimenna Foundation Inc

How large is The Dimenna Foundation Inc?

The Dimenna Foundation Inc reported $12.0M in total assets on its 2024 IRS Form 990-PF. It paid out $5K in qualifying distributions that year, against a required minimum of $619K (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 Dimenna Foundation Inc fund?

No mission statement for the foundation is provided. Its listed grantees illustrate the kinds of organizations it has supported. See mission & focus areas ↑

How do I apply for a grant from The Dimenna 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 ↑

Where does The Dimenna Foundation Inc make grants?

The listed 2023 grants include organizations in New York City and Palmetto Bay, Florida.

What is The Dimenna Foundation Inc's EIN?

The Dimenna Foundation Inc's EIN (Employer Identification Number) is 06-1534269. IRS Form 990 filing data is available on this page for 2020–2024.

Does The Dimenna 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 September 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from The Dimenna 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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