Isidor Wiesbader Foundation Inc
Isidor Wiesbader Foundation Inc is a private foundation, based in Valley Stream, NY. IRS filing data is available from 2020 through 2026. As of 2026, the organization holds $1.2M in total assets. In 2026, it awarded 4 grants totaling $112K. Net investment income was $49K.
Isidor Wiesbader Foundation Inc at a glance
In short: Isidor Wiesbader Foundation Inc gave $112K across 4 grants in 2026 (avg $28K), mostly in New York. Source: 2026 IRS Form 990-PF.
- Annual giving (2026)
- $112,000
- +9.8% vs 2025
- Grants made (2026)
- 4
- +0.0% vs 2025
- Average grant
- $28,000
- +9.8% vs 2025
- Median grant
- $28,000
- Total assets
- $1,199,311
- +9.2% vs 2025
- Primary geography
- New York (85% of itemized 2026 grant dollars)
- Latest 990 filing
- Form 990-PF, 2026 View filing
Data from IRS Form 990-PF, 2026; updated September 2026.
Who Isidor Wiesbader Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2026
The largest 2026 recipient was Albert Einstein College ($39K). Together the top 4 received $112K.
Grant Size Distribution
20 grants across all recorded years
The most common grant size was under $50K: 20 grants of 20 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2026 grant dollars across all 4 itemized grants.
States
Cities
How Isidor Wiesbader Foundation Inc gives
- Giving held roughly steady from 2023 to 2026 (+6%). Method
- In 2026 it paid out 91% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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
From 2020 to 2026, annual grant giving ranged from $96K (2024) to $112K (2026). In 2026 it made 4 grants totaling $112K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Albert Einstein College Bronx, NY | Eleemosynary | $39,000 |
| Hadassah New York, NY | Eleemosynary | $39,000 |
| American Red Cross Washington, DC | Eleemosynary | $17,000 |
| Bnai Zion Foundation New York, NY | Eleemosynary | $17,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2026 | $1,199,311 | $231,528 | $129,850 | $112,000 | 4 | $117,350 | $49,157 | $129,196 |
| 2025 | $1,098,333 | $44,882 | $114,750 | $102,000 | 4 | $107,250 | $44,882 | $116,306 |
| 2024 | $1,168,693 | $40,049 | $111,250 | $96,000 | 4 | $101,250 | $42,191 | $106,968 |
| 2023 | $1,240,511 | $43,576 | $121,275 | $106,000 | 4 | $111,275 | $44,464 | $102,973 |
| 2022 | $1,319,007 | $41,816 | $117,275 | $102,000 | 4 | $107,275 | $45,922 | $109,575 |
| 2021 | $1,395,048 | $31,688 | $110,775 | $98,000 | 4 | — | $41,971 | $109,505 |
| 2020 | $1,474,667 | $39,273 | $115,175 | $100,000 | 4 | — | $53,200 | $102,573 |
Under IRS private-foundation payout rules, Isidor Wiesbader Foundation Inc reported a distributable amount of $129K for 2026 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Isidor Wiesbader Foundation Inc is led by Andrew Diamond, President on every filing since 2020; all 4 officers listed in 2026 are compensated.
Officers on the 2026 filing
Andrew Diamond
President
On filings since 2020
$3K (2020) → $3K (2026)
Debra Langendorff
Secretary & Vice President
On filings since 2020
$3K (2020) → $3K (2026)
Matthew Diamond
Vice President
On filings since 2020
$3K (2020) → $5K (2026)
Roberta Diamond
Treasurer
On filings since 2020
$3K (2020) → $3K (2026)
Data from IRS Form 990 filings, 2020–2026. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2026 IRS filing
The highest reported compensation on the 2026 filing was $5K, to Matthew Diamond (Vice-Pres). 4 officers or directors reported compensation on that filing.
Frequently asked questions about Isidor Wiesbader Foundation Inc
How much does Isidor Wiesbader Foundation Inc give each year?
Isidor Wiesbader Foundation Inc gave $112K across 4 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $102K across 4 grants.
What is Isidor Wiesbader Foundation Inc's typical grant size?
Isidor Wiesbader Foundation Inc's median grant in 2026 was $28,000, and its average grant was $28,000, across 4 grants on its 2026 IRS Form 990-PF.
Where does Isidor Wiesbader Foundation Inc give grants?
Isidor Wiesbader Foundation Inc gives mostly in New York: 85% of the grant dollars itemized on its 2026 IRS Form 990-PF went to recipients there. The next largest state was District of Columbia (15%). The most frequent recipient cities were New York, NY (2 grants).
Does Isidor Wiesbader Foundation Inc give general operating support?
Not in 2026: none of the 4 grants with a stated purpose on Isidor Wiesbader Foundation Inc's 2026 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Eleemosynary" (4 grants).
How large is Isidor Wiesbader Foundation Inc?
Isidor Wiesbader Foundation Inc reported $1.2M in total assets on its 2026 IRS Form 990-PF. It paid out $117K in qualifying distributions that year, against a required minimum of $129K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What is Isidor Wiesbader Foundation Inc's EIN?
Isidor Wiesbader Foundation Inc's EIN (Employer Identification Number) is 11-2849212. IRS Form 990 filing data is available on this page for 2020–2026.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2026 (received by the IRS July 15, 2026)
- IRS filings on file for fiscal years 2020–2025
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