The Dinan Family Foundation

Private foundation · Grantmaker West Palm Beach, FL EIN: 13-3976827

The Dinan Family Foundation is based in West Palm Beach, Florida, and its 2025 filing lists 38 grants totaling $6,146,604. Its grants supported organizations in areas including university and college education, performing arts, museums, hospital care, youth sports, and land conservation.

Key facts about The Dinan Family Foundation

In short: The Dinan Family Foundation gave $6.1M across 38 grants in 2025 (avg $162K), mostly in New York. 37% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

EIN
13-3976827
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$6,146,604
Grants made (2025)
38
Average grant
$161,753
Median grant
$24,000
New grantees (estimate)
37% first-time grantees (14 of 38, 2025)
Total assets
$60,747,061
Primary geography
New York (68% of itemized 2025 grant dollars)
Accepts unsolicited proposals
No
How to apply
The foundation does not accept unsolicited requests; grants are made at trustee discretion to preselected organizations. Full details ↓

Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$60.7M

-3.4% YoY

Annual Giving

$6.1M

+22.5% YoY

Grant Count

38

-32.1% YoY

Avg Grant Size

$162K

+80.6% YoY

Under IRS private-foundation payout rules, The Dinan Family Foundation reported a distributable amount of $4.7M for 2025 — the minimum it must pay out in qualifying distributions.

Is The Dinan Family Foundation open to new grantees?

37%

first-time grantees, 2025

In 2025, 14 of 38 grantees (37%) were first-time recipients. First grants averaged $14K; repeat grants $248K. How we count

Medians: $5K first-time, $50K repeat.

  • 45% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+19%). Method
  • In 2025 it paid out 130% 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.

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 educational institutions, arts and cultural organizations, hospitals, youth sports, and land conservation.

The grantees describe their work in varied terms. The Rockefeller University says it conducts biomedical and other scientific research and graduate education to improve understanding of life. Lincoln Center for the Performing Arts says it promotes the performing arts and educates the public. The Museum of the City of New York says it helps people understand urban life by interpreting the city’s past, present, and future. North Salem Open Land Foundation says it works to preserve the area’s natural beauty and ecological integrity.

Grantmaking

In 2025, the foundation made 38 grants totaling $6,146,604. Grants ranged from $13 to $2,050,000, with a median of $24,000. The largest grants included $2,050,000 to The Rockefeller University for university education; $1,349,599 to Lincoln Center for the Performing Arts; $588,954 to the Trustees of the University of Pennsylvania for university education; and $500,000 to Smith College for college education.

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Geographic Focus

Where this funder awards grants

In 2025, New York recipients received 68% of grant dollars, followed by Massachusetts and Pennsylvania at 10% each, Wisconsin at 4%, and Tennessee at 3%. The listed grants also included recipients in Colorado.

Grant Distribution by State

18states

Share of 2025 grant dollars across all 38 itemized grants.

Cities

New YorkNantucketNorth SalemCambridgeKatonahPhiladelphiaWashingtonMiamiMilwaukeeDevonBronxColorado SpringsMemphisMontclairNewportWorchesterCroton FallsStamfordWest Palm BeachAnnapolis

Giving Over Time

Total grant dollars and number of grants per year

$0$2M$4M$6M$8M59 grants2020 46 grants2021 55 grants2022 68 grants2023 56 grants2024 38 grants2025

From 2020 to 2025, annual grant giving ranged from $4.5M (2020) to $6.1M (2025). In 2025 it made 38 grants totaling $6.1M.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

The Rockefeller University: $2.0MThe Rockefeller University$2.0MLincoln Center for the Performing Arts: $1.3MLincoln Center for thePerforming Arts$1.3MThe Trustees of The University of Penn: $589KThe Trustees of The Universityof Penn$589KSmith College: $500KSmith College$500KMuseum of the City of New York: $250KMuseum of the City of New York$250KFroedtert Hospital Foundation: $200KFroedtert Hospital Foundation$200KSt Jude Children's Research Hospital: $200KSt Jude Children's ResearchHospital$200KHospital for Special Surgery Fund Inc: $194KHospital for Special SurgeryFund Inc$194KUSA Wrestling: $188KUSA Wrestling$188KPresident and Fellows of Harvard College: $100KPresident and Fellows ofHarvard College$100K

The largest 2025 recipient was The Rockefeller University ($2.0M). Together the top 10 received $5.6M.

Grant Size Distribution

263 grants across all recorded years

208<$50K12$50–100K19$100–250K7$250–500K7$500K–1M10$1–5M$5M+

The most common grant size was under $50K: 208 grants of 263 (79%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
The Rockefeller University New York, NYUniversity Education$2,050,000
Lincoln Center for the Performing Arts New York, NYGeneral$1,349,599
The Trustees of The University of Penn Philadelphia, PAUniversity Education$588,954
Smith College Northampton, MACollege Education$500,000
Museum of the City of New York New York, NYArts & Culture$250,000
Froedtert Hospital Foundation Milwaukee, WIAdvanced Patient Care Services$200,000
St Jude Children's Research Hospital Memphis, TNHospital for Childhood Cancer and Pediatric Diseas$200,000
Hospital for Special Surgery Fund Inc New York, NYSpecialty Hospital Care$194,200
USA Wrestling Colorado Springs, COYouth Organized Sports$187,625
President and Fellows of Harvard College Cambridge, MAUniversity Education$100,000

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grant total Grant count
2025 $60,747,061 $4,698,974 $6,855,738 $6,146,604 38
2024 $62,903,825 $12,312,068 $5,492,921 $5,016,027 56
2023 $56,084,678 $2,978,080 $5,426,525 $5,021,333 68

The filing type is 990T.

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$5M$10M$15M2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$60,747,061$62,903,825$56,084,678
Revenue$4,698,974$12,312,068$2,978,080
Expenses$6,855,738$5,492,921$5,426,525
Qualifying Distributions$6,146,604$5,016,027$5,021,333
Net Investment Income$4,696,502$13,466,608$3,507,610
Distributable Amount$4,720,075$4,354,633$4,813,821

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS April 6, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS June 27, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS January 20, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists James G. Dinan and Elizabeth Miller as directors, and Zachary M. Dinan and Katherine A. Dinan as board members.

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

Officers on the 2025 filing

  • Elizabeth Miller

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • James G. Dinan

    Director

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Katherine A. Dinan

    Board Member

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Zachary M. Dinan

    Board Member

    On filings since 2020

    0.3 hrs/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.

Contact

Mailing address: 525 Okeechobee Blvd Ste 820, West Palm Beach, FL 33401
Phone: (212) 300-1300

Frequently asked questions about The Dinan Family Foundation

How much does The Dinan Family Foundation give each year?

The Dinan Family Foundation gave $6.1M across 38 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $5.0M across 56 grants.

What is The Dinan Family Foundation's typical grant size?

The Dinan Family Foundation's median grant in 2025 was $24,000, and its average grant was $161,753, across 38 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Dinan Family Foundation that year got $14K on average.

Where does The Dinan Family Foundation give grants?

The Dinan Family Foundation gives mostly in New York: 68% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (10%) and Pennsylvania (10%). The most frequent recipient cities were New York, NY (17 grants), Milwaukee, WI (2 grants) and Nantucket, MA (2 grants).

Does The Dinan Family Foundation give general operating support?

Yes: 39% of The Dinan Family Foundation's 2025 grants with a stated purpose (15 of 38) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Art & Culture" (4 grants), "Youth Organized Sports" (3 grants) and "University Education" (3 grants).

Who are The Dinan Family Foundation's largest grantees?

The Dinan Family Foundation's largest 2025 grantees include The Rockefeller University ($2,050,000), Lincoln Center for the Performing Arts ($1,349,599) and The Trustees of The University of Penn ($588,954), according to its 2025 IRS Form 990-PF. Together they received 65% of its itemized 2025 grant dollars.

How large is The Dinan Family Foundation?

The Dinan Family Foundation reported $60.7M in total assets on its 2025 IRS Form 990-PF. It paid out $6.1M in qualifying distributions that year, against a required minimum of $4.7M (roughly 5% of its investment assets).

What does The Dinan Family Foundation fund?

No mission statement for the foundation is provided. Its 2025 grants show support for educational institutions, arts and cultural organizations, hospitals, youth sports, and land conservation. See mission & focus areas ↑

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

The foundation does not accept unsolicited requests; grants are made at trustee discretion to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Dinan Family Foundation's EIN?

The Dinan Family Foundation's EIN (Employer Identification Number) is 13-3976827. IRS Form 990 filing data is available on this page for 2020–2025.

Does The Dinan Family Foundation accept unsolicited proposals?

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

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

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