Heather Zwiebel Leukemia Foundation Inc

Private foundation · Grantmaker Montebello, NY EIN: 13-3472243

Heather Zwiebel Leukemia Foundation Inc is a private foundation, based in Montebello, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $8K in total assets. In 2025, it awarded 1 grant totaling $5K.

Heather Zwiebel Leukemia Foundation Inc at a glance

In short: Heather Zwiebel Leukemia Foundation Inc gave $5K across 1 grant in 2025 (avg $5K), mostly in New York. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$4,805
+0.0% vs 2024
Grants made (2025)
1
+0.0% vs 2024
Average grant
$4,805
+0.0% vs 2024
Median grant
$4,805
Total assets
$8,428
+3.6% vs 2024
Primary geography
New York (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

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

Who Heather Zwiebel Leukemia Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top recipient in 2025

New York University: $5KNew York University$5K

The largest 2025 recipient was New York University ($5K).

Grant Size Distribution

5 grants across all recorded years

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

The most common grant size was under $50K: 5 grants of 5 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of the 2025 grant dollars on its one itemized grant.

States

Cities

New York

How Heather Zwiebel Leukemia Foundation Inc gives

  • Giving fell 55% from 2022 to 2025. Method
  • In 2025 it paid out well above its IRS minimum distribution (the 5% rule). 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$5K$10K$15K1 grant2020 1 grant2021 1 grant2022 1 grant2023 1 grant2024 1 grant2025

From 2020 to 2025, annual grant giving ranged from $5K (2024) to $11K (2022). In 2025 it made 1 grant totaling $5K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
New York University New York, NYMedical$4,805
Your AI grants department

Ready to take the next step with Heather Zwiebel Leukemia Foundation Inc?

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

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsDistributable Amount
2025$8,428$5,100$4,805$4,8051$4,805$408
2024$8,133$5,100$4,805$4,8051$4,805$393
2023$7,838$5,000$5,100$5,1001$5,100$389
2022$7,938$10,600$10,586$10,5861$10,586$391
2021$7,924$4,250$5,000$5,0001$5,000$409
2020$8,674$3,250$5,259$5,2591—$477

Under IRS private-foundation payout rules, Heather Zwiebel Leukemia Foundation Inc reported a distributable amount of $408 for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Heather Zwiebel Leukemia Foundation Inc is led by Jeffrey Zwiebel, President & Treasurer on every filing since 2020; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Jeffrey Zwiebel

    President & Treasurer

    On filings since 2020

    No compensation reported

  • Jennifer Zwiebel

    V.president & Secretary

    On filings since 2020

    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 Heather Zwiebel Leukemia Foundation Inc

How much does Heather Zwiebel Leukemia Foundation Inc give each year?

Heather Zwiebel Leukemia Foundation Inc gave $5K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $5K across 1 grant.

How large is Heather Zwiebel Leukemia Foundation Inc?

Heather Zwiebel Leukemia Foundation Inc reported $8K in total assets on its 2025 IRS Form 990-PF. It paid out $5K in qualifying distributions that year, against a required minimum of $408 (roughly 5% of its investment assets).

Where does Heather Zwiebel Leukemia Foundation Inc operate?

Heather Zwiebel Leukemia Foundation Inc has awarded grants in New York.

What is Heather Zwiebel Leukemia Foundation Inc's EIN?

Heather Zwiebel Leukemia Foundation Inc's EIN (Employer Identification Number) is 13-3472243. IRS Form 990 filing data is available on this page for 2020–2025.

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

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS November 15, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS November 14, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS November 14, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS August 16, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS July 22, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)

Explore Open Grants

Browse active grant opportunities in Heather Zwiebel Leukemia Foundation Inc's focus areas in our free grants database

Similar Funders

Funders with grantees in common

Trellis Foundation

Round Rock, TX

Trellis Foundation funds programs and policy efforts that help Texas students access, afford, and complete postsecondary credentials and degrees. Its 2025 grants ranged from $8,500 to $3.15 million, with a median of $100,000; it focuses on Texas, though it may support national projects with a clear Texas component. It does not accept unsolicited grant requests and generally invites proposals.

Human Services

Assets

$545.1M

Grants

83

Total Given

$16.5M

The Horn Foundation

Santa Monica, CA

The Horn Foundation supports education and environmental projects, along with organizations addressing related social and environmental challenges, with 2024 grants ranging from $500 to $550,000 and a median of $15,000. Its 2024 giving went mainly to recipients in New York, California, Washington, D.C., Massachusetts, and North Carolina. It does not accept unsolicited requests and gives only to preselected organizations.

Assets

$57.0M

Grants

61

Total Given

$3.2M

John and Margo Catsimatidis Foundation Inc

New York, NY

The foundation supports organizations in areas including stem cell research, education, hunger relief, heritage, and community support. Its 2024 grants ranged from $5,000 to $200,000, with a median of $50,000; most funding went to New York, with additional grants in Arkansas, Florida, Wisconsin, and Maryland. It gives only to preselected charities and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$14K

Grants

12

Total Given

$678K

Mental Research Institute

Menlo Park, CA

The Mental Research Institute funds research and programs using systemic, interactional approaches to psychology, social systems, communication, and human relationships, including mental health and family-related work. Its 2025 grants ranged from $4,500 to $25,000, with a median of $20,000, and went to recipients in multiple states. Although its website describes a rolling application process, its 2024 filing says it funds only preselected organizations and does not accept unsolicited requests.

Assets

$11.3M

Grants

33

Total Given

$560K

Freedom Together Foundation

New York, NY

The foundation funds work to strengthen multiracial democracy and build community and worker power, racial and gender justice, movement infrastructure, reproductive health, medical research, and community institutions. In 2024, its grants ranged from $5,000 to $14 million, with a median of $500,000; its largest shares went to organizations in Washington, DC, New York, California, Massachusetts, and Illinois. It funds only preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$3.4B

Grants

595

Total Given

$470.0M

American Association for Dental Oral and Craniofacial Research

Alexandria, VA

Drive dental, oral, and craniofacial research to advance health and well-being.

Health

Assets

$11.1M

Grants

5

Total Given

$78K

More similar funders

More Funders in New York

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

Figures come from Heather Zwiebel Leukemia 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.

Heather Zwiebel Leukemia Foundation Inc down — hundreds of funders to go?

Want AI to do this for you?