Mollie Zweig Foundation

Private foundation · Grantmaker Miami Beach, FL EIN: 13-4091662

MOLLIE ZWEIG FOUNDATION is a private foundation based in Miami Beach, Florida. It supports charitable organizations through grants, including organizations working in health, wildlife care, conservation, and community and cultural services.

Key facts about Mollie Zweig Foundation

In short: Mollie Zweig Foundation gave $98K across 11 grants in 2025 (avg $9K), mostly in Florida. 0% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

EIN
13-4091662
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$98,000
Grants made (2025)
11
Average grant
$8,909
Median grant
$6,000
New grantees (estimate)
0% first-time grantees (0 of 11, 2025)
Total assets
$1,589,544
Primary geography
Florida (61% of itemized 2025 grant dollars)
Accepts unsolicited proposals
No
How to apply
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable 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

$1.6M

+4.0% YoY

Annual Giving

$98K

+15.3% YoY

Grant Count

11

-26.7% YoY

Avg Grant Size

$9K

+57.2% YoY

Under IRS private-foundation payout rules, Mollie Zweig Foundation reported a distributable amount of $106K for 2025 — the minimum it must pay out in qualifying distributions.

Is Mollie Zweig Foundation open to new grantees?

0%

first-time grantees, 2025

In 2025, 0 of 11 grantees (0%) were first-time recipients. How we count

  • 100% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+1%). Method
  • In 2025 it paid out 95% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). 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 included support for Mayo Clinic, whose mission is to provide patient care, education, and research to contribute to health and well-being; Ocean Conservancy, which works to protect the ocean through science, people, and policy; and Pelican Harbor Seabird Station, which rescues, rehabilitates, and releases native wildlife. The foundation also gave to the University of Miami; its mission description refers readers to its Form 990.

Grantmaking

In 2025, the foundation made 11 grants totaling $98,000. Grants ranged from $3,000 to $20,000, with a median grant of $6,000. The largest awards were $20,000 each to Mayo Clinic and Miami Beach JCC, and $15,000 to Sundari Foundation. Other notable grants included $10,000 to Ocean Conservancy, $8,000 to Pelican Harbor Seabird Station, and $6,000 to the University of Miami. All listed 2025 grants were for general operations.

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Geographic Focus

Where this funder awards grants

In 2025, 61% of grant dollars went to recipients in Florida, 20% to Minnesota, 10% to Washington, DC, 5% to Kansas, and 3% to New York.

Grant Distribution by State

8states

Share of all 11 itemized 2025 grant dollars.

Cities

MiamiMiami BeachNew YorkCoral GablesRochesterWashingtonMiami LakesTopekaGreenvalePhiladelphiaChapel HillChesterSan AntonioValley Stream

Giving Over Time

Total grant dollars and number of grants per year

$0$25K$50K$75K$100K10 grants201911 grants202013 grants202113 grants202214 grants202315 grants202411 grants2025

From 2019 to 2025, annual grant giving ranged from $80K (2019) to $98K (2025). In 2025 it made 11 grants totaling $98K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Mayo Clinic: $20KMayo Clinic$20KMiami Beach JCC: $20KMiami Beach JCC$20KSundari Foundation: $15KSundari Foundation$15KOcean Conservancy: $10KOcean Conservancy$10KPelican Harbor Seabird Station: $8KPelican Harbor Seabird Station$8KUniversity of Miami: $6KUniversity of Miami$6KSouth Florida Spca: $5KSouth Florida Spca$5KWounded Warrior Project: $5KWounded Warrior Project$5KHistory Miami Museum: $3KHistory Miami Museum$3KCure PSP: $3KCure PSP$3K

The largest 2025 recipient was Mayo Clinic ($20K). Together the top 10 received $95K.

Grant Size Distribution

66 grants across all recorded years

66<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 66 grants of 66 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Mayo Clinic Rochester, MNGeneral Operations$20,000
Miami Beach JCC Miami Beach, FLGeneral Operations$20,000
Sundari Foundation Miami, FLGeneral Operations$15,000
Ocean Conservancy Washington, DCGeneral Operations$10,000
Pelican Harbor Seabird Station Miami, FLGeneral Operations$8,000
University of Miami Coral Gables, FLGeneral Operations$6,000
South Florida Spca Miami Lakes, FLGeneral Operations$5,000
Wounded Warrior Project Topeka, KSGeneral Operations$5,000
History Miami Museum Miami, FLGeneral Operations$3,000
Cure PSP New York, NYGeneral Operations$3,000

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grants
2025 $1,589,544 $195,329 $121,306 $98,000 (11 grants)
2024 $1,528,130 $77,309 $106,598 $85,000 (15 grants)
2023 $1,542,192 $59,224 $110,483 $91,100 (14 grants)
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$100K$200K$300K2019202020212022202320242025
Metric202520242023
Total Assets$1,589,544$1,528,130$1,542,192
Revenue$195,329$77,309$59,224
Expenses$121,306$106,598$110,483
Qualifying Distributions$100,900$87,725$93,700
Net Investment Income$169,623$53,486$37,741
Distributable Amount$106,095$99,144$87,767

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 15, 2025)
  2. Updated Form 990-PF for fiscal year 2025 (received by the IRS May 15, 2026)
  3. Added Form 990-PF for fiscal year 2019 (received by the IRS August 17, 2020)
  4. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 13, 2021)
  5. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 12, 2022)
  6. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 15, 2023)
  7. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Mollie Zweig as president, Alexander Zweig as secretary, and Zachary Zweig as treasurer.

Mollie Zweig Foundation is led by Mollie Zweig, President on every filing since 2019; none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Mollie Zweig

    President

    On filings since 2019

    No compensation reported

  • Alexander Zweig

    Secretary

    On filings since 2019

    No compensation reported

  • Zachary Zweig

    Treasurer

    On filings since 2019

    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.

Contact

Mailing address: 1455 Ocean Drive 1108, Miami Beach, FL 33139

Frequently asked questions about Mollie Zweig Foundation

How much does Mollie Zweig Foundation give each year?

Mollie Zweig Foundation gave $98K across 11 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $85K across 15 grants.

What is Mollie Zweig Foundation's typical grant size?

Mollie Zweig Foundation's median grant in 2025 was $6,000, and its average grant was $8,909, across 11 grants on its 2025 IRS Form 990-PF.

Where does Mollie Zweig Foundation give grants?

Mollie Zweig Foundation gives mostly in Florida: 61% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Minnesota (20%) and District of Columbia (10%). The most frequent recipient cities were Miami, FL (3 grants) and Miami Beach, FL (2 grants).

Does Mollie Zweig Foundation give general operating support?

Yes: 100% of Mollie Zweig Foundation's 2025 grants with a stated purpose (11 of 11) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Mollie Zweig Foundation's largest grantees?

Mollie Zweig Foundation's largest 2025 grantees include Mayo Clinic ($20,000), Miami Beach JCC ($20,000) and Sundari Foundation ($15,000), according to its 2025 IRS Form 990-PF. Together they received 56% of its itemized 2025 grant dollars.

How large is Mollie Zweig Foundation?

Mollie Zweig Foundation reported $1.6M in total assets on its 2025 IRS Form 990-PF. It paid out $101K in qualifying distributions that year, against a required minimum of $106K (roughly 5% of its investment assets).

What does Mollie Zweig Foundation fund?

No mission statement for the foundation is provided. See mission & focus areas ↑

How do I apply for a grant from Mollie Zweig Foundation?

The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Mollie Zweig Foundation's EIN?

Mollie Zweig Foundation's EIN (Employer Identification Number) is 13-4091662. IRS Form 990 filing data is available on this page for 2019–2025.

Does Mollie Zweig 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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