William & Leona Lorberbaum

Private foundation · Grantmaker Plattsburgh, NY EIN: 11-3346508

William & Leona Lorberbaum is a private foundation based in Plattsburgh, New York. It made 16 grants totaling $12,490 in filing year 2025, supporting charitable organizations in several states and Washington, DC.

William & Leona Lorberbaum at a glance

In short: William & Leona Lorberbaum gave $12K across 16 grants in 2025 (avg $780.625), mostly in New York. 25% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$12,490
-10.8% vs 2024
Grants made (2025)
16
-5.9% vs 2024
Average grant
$781
-5.2% vs 2024
Median grant
$750
Total assets
$274,503
+44.3% vs 2024
New grantees (estimate)
25% first-time grantees (4 of 16, 2025; small sample)
Primary geography
New York (50% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to William & Leona Lorberbaum

Accepts unsolicited proposals
No
How to Apply

The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 113 Wood Cliff Dr, Plattsburgh, NY 12901-6056
Phone: (518) 561-4854

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who William & Leona Lorberbaum funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Friends of the IDF: $2KFriends of the IDF$2KMagen David Adom: $2KMagen David Adom$2KTemple Beth Israel: $2KTemple Beth Israel$2KHadassah: $1KHadassah$1KHolocaust Memorial Museum: $1KHolocaust Memorial Museum$1KJudicial Watch: $1KJudicial Watch$1KBeit Charverim: $1KBeit Charverim$1KJewish Nationa Fund: $1KJewish Nationa Fund$1KWorld Jewish Congress: $500World Jewish Congress$500The Wild Center: $250The Wild Center$250

The largest 2025 recipient was Friends of the IDF ($2K). Together the top 10 received $12K.

Grant Size Distribution

88 grants across all recorded years

88<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 88 grants of 88 (100%).

Geographic Focus

Where this funder awards grants

In 2025, 50% of grant dollars went to recipients in New York and 32% to recipients in Washington, DC. Other reported recipient-state shares were Utah, 10%; Virginia, 4%; and Kansas, 1%.

Grant Distribution by State

15states

Share of 2025 grant dollars across all 16 itemized grants.

Cities

WashingtonNew YorkPlattsburghIvinsBostonMerrifieldLos AngelesMemphisSt GeorgeTupper LakeCleranceSantaclasraAnnapolis JunctionDwassoFredericksburgHicksvilleLas VegasLebanonMilfordNorwalk

Is William & Leona Lorberbaum open to new grantees?

25%

first-time grantees, 2025

In 2025, 4 of 16 grantees (25%) were first-time recipients. With only 16 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $140; repeat grants $994. How we count

Medians: $140 first-time, $1K repeat.

  • 69% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (−17%). 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.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$5K$10K$15K$20K22 grants2020 22 grants2021 19 grants2022 14 grants2023 17 grants2024 16 grants2025

From 2020 to 2025, annual grant giving ranged from $12K (2025) to $16K (2020). In 2025 it made 16 grants totaling $12K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Friends of the IDF New York, NYGeneral$2,000
Magen David Adom Washington, DCGeneral$2,000
Temple Beth Israel Plattsburgh, NYGeneral$1,805
Hadassah New York, NYGeneral$1,000
Holocaust Memorial Museum Washington, DCGeneral$1,000
Judicial Watch Washington, DCGeneral$1,000
Beit Charverim Ivins, UTGeneral$1,000
Jewish Nationa Fund Hicksville, NYGeneral$1,000
World Jewish Congress Merrifield, VAGeneral$500
The Wild Center Tupper Lake, NYGeneral$250
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment Income
2025$274,503$13,098$16,546$12,49016$12,490$9,042
2024$190,271$10,914$16,072$14,00517$14,005$8,847
2023$197,867$5,822$19,885$14,06814$14,068$5
2022$211,930$6,002$21,026$15,02519$15,025$1
2021$226,954$19,148$22,376$15,18022$15,180—
2020$235,900$12,632$26,822$16,33022——

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 went to organizations including Jewish and Israeli organizations, a Holocaust memorial museum, a government-accountability organization, and a regional nature center. Judicial Watch Inc., which received $1,000, describes its own mission as promoting integrity, transparency, and accountability in government and fidelity to the rule of law through public advocacy, litigation, monitoring, and investigation.

Grantmaking

In filing year 2025, the foundation reported 16 grants totaling $12,490. Grants ranged from $100 to $2,000, with a median of $750. Listed grants included $2,000 each to Friends of the IDF and Magen David Adom; $1,805 to Temple Beth Israel in Plattsburgh; and $1,000 each to Hadassah, Holocaust Memorial Museum, Judicial Watch, Beit Charverim, and Jewish Nationa Fund. The listed grant purposes were general.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Marilyn Lorberbaum as president and Robert Lorberbaum as secretary.

William & Leona Lorberbaum is led by Marilyn Lorberbaum, President on every filing since 2020; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Marilyn Lorberbaum

    President

    On filings since 2020

    No compensation reported

  • Robert Lorberbaum

    Secretary

    On filings since 2020

    No compensation reported

Former officers (2)
  • Former: Edwin Perlstein (2020–2023) — Vice President
  • Former: Lawrence Lorberbaum (2020–2023) — Treasurer

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 William & Leona Lorberbaum

How much does William & Leona Lorberbaum give each year?

William & Leona Lorberbaum gave $12K across 16 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $14K across 17 grants.

What is William & Leona Lorberbaum's typical grant size?

William & Leona Lorberbaum's median grant in 2025 was $750, and its average grant was $781, across 16 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from William & Leona Lorberbaum that year got $140 on average.

Where does William & Leona Lorberbaum give grants?

William & Leona Lorberbaum gives mostly in New York: 50% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were District of Columbia (32%) and Utah (10%). The most frequent recipient cities were Washington, DC (3 grants), New York, NY (2 grants), Plattsburgh, NY (2 grants) and St George, UT (2 grants).

Does William & Leona Lorberbaum give general operating support?

Yes: 100% of William & Leona Lorberbaum's 2025 grants with a stated purpose (16 of 16) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are William & Leona Lorberbaum's largest grantees?

William & Leona Lorberbaum's largest 2025 grantees include Friends of the IDF ($2,000), Magen David Adom ($2,000) and Temple Beth Israel ($1,805), according to its 2025 IRS Form 990-PF. Together they received 46% of its itemized 2025 grant dollars.

How large is William & Leona Lorberbaum?

William & Leona Lorberbaum reported $275K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $13K.

What does William & Leona Lorberbaum fund?

No mission statement for the foundation is provided. Its 2025 grants went to organizations including Jewish and Israeli organizations, a Holocaust memorial museum, a government-accountability organization, and a regional nature center. See mission & focus areas ↑

How do I apply for a grant from William & Leona Lorberbaum?

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

What is William & Leona Lorberbaum's EIN?

William & Leona Lorberbaum's EIN (Employer Identification Number) is 11-3346508. IRS Form 990 filing data is available on this page for 2020–2025.

Does William & Leona Lorberbaum accept unsolicited proposals?

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

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

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

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

Figures come from William & Leona Lorberbaum'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.

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