Halff Windham Foundation

Private foundation · Grantmaker Wilmington, DE EIN: 83-2365293

Halff Windham Foundation is a private foundation, based in Wilmington, DE. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $3.1M in total assets. In 2025, it awarded 8 grants totaling $704K. Net investment income was $29K.

Key facts about Halff Windham Foundation

In short: Halff Windham Foundation gave $704K across 8 grants in 2025 (avg $88K), top state New York. Source: 2025 IRS Form 990-PF.

EIN
83-2365293
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$703,500
Grants made (2025)
8
Average grant
$87,938
Median grant
$100,000
Total assets
$3,109,054
Primary geography
New York (42% of itemized 2025 grant dollars)

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

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$3.1M

+0.1% YoY

Annual Giving

$704K

+130.7% YoY

Grant Count

8

+100.0% YoY

Avg Grant Size

$88K

+15.3% YoY

Under IRS private-foundation payout rules, Halff Windham Foundation reported a distributable amount of $205K for 2025 — the minimum it must pay out in qualifying distributions.

How Halff Windham Foundation gives

  • Giving grew 481% from 2022 to 2025. Method
  • In 2025 it paid out 350% of its IRS minimum distribution (the 5% rule). Method

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

Your AI grants department

Ready to take the next step with Halff Windham Foundation?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Geographic Focus

Where this funder awards grants

Grant Distribution by State

8states

Share of 2025 grant dollars across all 8 itemized grants.

Cities

New YorkSan FranciscoNew HavenRichmondBeavertonBrightonPrincetonSan Luis ObispoVienna

Giving Over Time

Total grant dollars and number of grants per year

$0$200K$400K$600K$800K7 grants2019 6 grants2020 6 grants2021 5 grants2022 3 grants2023 4 grants2024 8 grants2025

From 2019 to 2025, annual grant giving ranged from $42K (2021) to $704K (2025). In 2025 it made 8 grants totaling $704K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 6 recipients in 2025

Bayard Rustin Center for Social Justice: $200KBayard Rustin Center forSocial Justice$200KMetropolitan Opera Association Inc: $200K across 2 grantsMetropolitan Opera AssociationInc$200K · 2 grantsEarlham College: $100KEarlham College$100KWolf Trap Foundation for the Performing Arts: $100KWolf Trap Foundation for thePerforming Arts$100KJazz at Pride Inc: $99K across 2 grantsJazz at Pride Inc$99K · 2 grantsCentral Connecticut Coast Young Mens Christian Ass: $5KCentral Connecticut CoastYoung Mens Christian Ass$5K

The largest 2025 recipient was Bayard Rustin Center for Social Justice ($200K). Together the top 6 received $704K.

Grant Size Distribution

26 grants across all recorded years

14<$50K3$50–100K9$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 14 grants of 26 (54%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Bayard Rustin Center for Social Justice Princeton, NJGeneral & Unrestricted$200,000
Earlham College Richmond, INFor Good Campaign: The Clarence Cunningham Student Emergency Fund Endowment$100,000
Metropolitan Opera Association Inc New York, NYThe Transforming the Met Campaign / Access Opera: Guild Open Rehearsals for Students$100,000
Metropolitan Opera Association Inc New York, NYNew Production: The Amazing Adventures of Kavalier & Clay$100,000
Wolf Trap Foundation for the Performing Arts Vienna, VACreation of the Halff Windham Foundation Fund for Early Learning Through the Arts$100,000
Jazz at Pride Inc New York, NYRecording of Rustin in Renaissance$78,200
Jazz at Pride Inc New York, NYJazz at Pride performances Jazz at Lincoln Center$20,300
Central Connecticut Coast Young Mens Christian Ass New Haven, CTGeneral & Unrestricted$5,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$500K$1M$1.5M2019 2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$3,109,054$3,106,514$2,467,575
Revenue$747,471$975,934$871,321
Expenses$744,931$336,995$138,705
Qualifying Distributions$718,821$317,749$126,927
Net Investment Income$29,022$33,899$16,452
Distributable Amount$205,089$154,758$103,349

Data update history

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS June 11, 2020)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS June 12, 2026)
  3. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Officers and directors from IRS filings

Halff Windham Foundation is led by Lawrence Halff, Director, President & Treasurer on every filing since 2019; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Lawrence Halff

    Director, President & Treasurer

    On filings since 2019

    10 hrs/week

    No compensation reported

  • Charles R Windham

    Secretary

    On filings since 2019

    2 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2019–2025. "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 Halff Windham Foundation

How much does Halff Windham Foundation give each year?

Halff Windham Foundation gave $704K across 8 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $305K across 4 grants.

What is Halff Windham Foundation's typical grant size?

Halff Windham Foundation's median grant in 2025 was $100,000, and its average grant was $87,938, across 8 grants on its 2025 IRS Form 990-PF.

Where does Halff Windham Foundation give grants?

Halff Windham Foundation's top state is New York, with 42% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were New Jersey (28%) and Indiana (14%). The most frequent recipient cities were New York, NY (4 grants).

Does Halff Windham Foundation give general operating support?

Yes: 25% of Halff Windham Foundation's 2025 grants with a stated purpose (2 of 8) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Halff Windham Foundation's largest grantees?

Halff Windham Foundation's largest 2025 grantees include Bayard Rustin Center for Social Justice ($200,000), Metropolitan Opera Association Inc ($200,000 across 2 grants) and Earlham College ($100,000), according to its 2025 IRS Form 990-PF. Together they received 71% of its itemized 2025 grant dollars.

How large is Halff Windham Foundation?

Halff Windham Foundation reported $3.1M in total assets on its 2025 IRS Form 990-PF. It paid out $719K in qualifying distributions that year, against a required minimum of $205K (roughly 5% of its investment assets).

What is Halff Windham Foundation's EIN?

Halff Windham Foundation's EIN (Employer Identification Number) is 83-2365293. IRS Form 990 filing data is available on this page for 2019–2025.

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

Your AI grants department

Here's the math on researching Halff Windham Foundation by hand.

Explore Open Grants

Browse active grant opportunities in Halff Windham Foundation's focus areas in our free grants database

Similar Funders

Funders with grantees in common, and similar funders in Delaware

Marin Community Foundation

Novato, CA

Marin Community Foundation funds work in affordable housing and homelessness, community resilience and power, as well as social services, education, arts and conservation, with a focus on marginalized Marin County residents and some broader U.S. and international grantmaking. Its 2025 grants had a median of $25,000, though amounts varied widely. The profile does not state whether it accepts unsolicited requests.

Assets

$1.3B

Grants

1,573

Total Given

$186.1M

Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma

San Francisco, CA

The Federation funds Jewish life and identity, antisemitism response, crisis relief, human services, and justice and inclusion, with work in the Bay Area, Israel, and beyond. Its 2025 grants ranged from $5,050 to $2,405,915, with a median of $22,750. It frequently issues requests for proposals and welcomes inquiries about new Bay Area programs; no current organization grant opportunities were listed.

Assets

$2.0B

Grants

1,032

Total Given

$94.5M

The Chicago Community Trust

Chicago, IL

The Chicago Community Trust funds eligible nonprofits working to narrow the wealth gap and meet urgent needs, with priorities including economic mobility, education, jobs, homeownership, and community development in metropolitan Chicago and Cook County. Its 2025 grants had a median of $26,500, though amounts varied widely; the profile does not state whether it accepts unsolicited requests.

Assets

$7.1B

Grants

4,316

Total Given

$1.2B

American Electric Power Foundation

Wilmington, DE

The American Electric Power Foundation funds education, especially STEM, basic human services, social justice, and environmental protection, primarily for organizations in AEP’s service territory or with broader beneficial impact. Its 2025 grants ranged from $500 to $1,428,570, with a median of $10,000. It does not accept unsolicited requests; eligible organizations need an invitation from their local AEP Operating Company.

Philanthropy, Voluntarism & Grantmaking

Assets

$43.6M

Grants

753

Total Given

$23.0M

Puget Sound Energy Foundation

Wilmington, DE

The Puget Sound Energy Foundation funds nonprofits serving communities where PSE has a service or generation presence, primarily in Washington, across household needs, education and workforce pathways, climate resilience, and community safety. Grants vary widely; in 2024 they ranged from $13 to $100,000, with a $500 median, while its 2026 disaster-focused competitive program offers up to $15,000. It generally does not accept unsolicited requests, but eligible local nonprofits can apply through that competitive program.

Philanthropy, Voluntarism & Grantmaking

Assets

$19.6M

Grants

451

Total Given

$1.2M

First Eagle Investments Foundation

Wilmington, DE

Philanthropy, Voluntarism & Grantmaking

Assets

$747K

Grants

389

Total Given

$1.2M

Hagerty Drivers Foundation

Wilmington, DE

Assets

$193K

Grants

330

Total Given

$192K

McNabb Foundation

Wilmington, DE

The McNabb Foundation’s website describes support for behavioral health and social services in East Tennessee, while its 2024 grants went to organizations with varied missions, mostly in California. Grants ranged from $500 to $5,000, with a median of $1,000. It does not accept unsolicited requests and gives only to preselected charitable organizations.

Philanthropy, Voluntarism & Grantmaking

Assets

$4.8M

Grants

328

Total Given

$358K

Raskob Foundation for Catholic

Wilmington, DE

The Raskob Foundation for Catholic Activities funds Catholic entities across a wide range of projects, including education, hunger relief, emergency aid, and social services, in the United States and internationally. Its 2024 grants ranged from $250 to $100,000, with a median of $18,000. The profile does not state whether it accepts unsolicited requests.

Assets

$208.0M

Grants

325

Total Given

$6.2M

Delaware Community Foundation Inc

Wilmington, DE

Delaware Community Foundation supports nonprofits and students addressing community needs in Delaware, including community-impact projects, capital improvements, and scholarships. Its 2025 itemized grants had a median of $21,500, though awards varied widely. Applicants are directed to apply through the relevant program’s online portal; whether unsolicited requests are accepted is not stated.

Assets

$392.5M

Grants

323

Total Given

$20.4M

WSFS Cares Foundation

Wilmington, DE

The WSFS CARES Foundation funds qualified nonprofits working in community investment, affordable housing, neighborhood revitalization and economic empowerment, education and leadership, and services for people in need. It gives in Delaware, Pennsylvania, and New Jersey; 2024 awards ranged from $1,000 to $100,000, with a median of $5,000. It accepts requests through its grant and sponsorship portal; the 2024 filing says there is no prescribed application form or required materials.

Philanthropy, Voluntarism & Grantmaking

Assets

$12.3M

Grants

323

Total Given

$2.7M

More Funders in Delaware

Halff Windham Foundation down — hundreds of funders to go?

Want AI to do this for you?