O'donnell Iselin Foundation Inc

VALLEY STREAM, NY EIN: 51-6016471

The O'Donnell Iselin Foundation is a private foundation established in 1946, located in Valley Stream, New York. It operates as a 501(c)(3) grantmaking organization with no employees.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$1.0M

-7.7% YoY

Annual Giving

$188K

-11.3% YoY

Grant Count

30

-9.1% YoY

Avg Grant Size

$6K

-2.5% YoY

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

Mission & Focus Areas

The foundation primarily supports nonprofit organizations through general operating and project support. Its areas of interest include:

  • Human services
  • Environment, including wildlife preservation
  • Education
  • Arts and culture

Grantmaking

The foundation provides general operating support and project support to recipient charities.

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Geographic Focus

Where this funder awards grants

The foundation primarily supports nonprofit organizations in:

  • Fairfield County, Connecticut
  • The New York City metropolitan area

Grant Distribution by State

7states

Cities

BolinasBronxDanburyDarienDeer IsleGreenwichHohenwaldLake PlacidMattapoisettMt DesertNew CanaanNew HavenNew RochelleNew YorkNobleboroNorwalkReddingRowaytonStamfordStevenson

Financial History

Multi-year comparison from IRS filings

  • Total Assets: $1,103,055
  • Total Revenues: $173,172
  • Total Expenses: $236,092
  • Investment Income: $113,369
  • Number of Employees: 0
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$83K$166K$249K$332K20202021202220232024
Metric202420232022
Total Assets$1,017,610$1,103,055$1,165,975
Revenue$127,632$173,172$121,555
Expenses$213,292$236,092$225,232
Qualifying Distributions$187,500$211,500$198,000
Net Investment Income$111,954$157,710$106,323
Distributable Amount$213,669$200,038$202,703

Giving Over Time

Total grant dollars and number of grants per year

$0$70K$141K$211K$282K39 grants202038 grants202130 grants202233 grants202330 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

NEW YORK BOTANICAL GARDEN$25KST TIMOTHY'S SCHOOL$25KWOODS HOLE OCEANOGRAPHIC…$15KGREENWICH LAND TRUST INC$10KPLANNED PARENTHOOD OF GR…$10KPLANNED PARENTHOOD OF SO…$10KSPENCE CHAPIN$10KST HILDA'S & ST HUGH'S S…$10KTHE MONTESSORI SCHOOL$10KTHE MONTESSORI SCHOOL EN…$10K

Grant Size Distribution

170 grants across all recorded years

170<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

FRANK MEGALESECRETARY$7K

From 2024 filing

NameTitleHoursCompensation
URLING ISELIN SEARLEPRESIDENT
GORDON B WHELPLEY JRVICE PRESIDENT
FRANK MEGALESECRETARY1$6,925

Recent Activity

Recent developments and announcements

2023

The foundation continues active grantmaking, with its most recent tax filings dated December 1, 2023, reflecting 30 grants distributed during that fiscal year.

O'Donnell Foundation Gives $50M in Grants to Boost Higher Education in\_\

Related Funders

Similar funders by location and focus area

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

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