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.
Key facts about Isidor Wiesbader Foundation Inc
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.
- EIN
- 11-2849212
- Latest 990 filing
- Form 990-PF, 2026
- Annual giving (2026)
- $112,000
- Grants made (2026)
- 4
- Average grant
- $28,000
- Median grant
- $28,000
- Total assets
- $1,199,311
- Primary geography
- New York (85% of itemized 2026 grant dollars)
Data from IRS Form 990-PF, 2026; updated September 2026.
Financial Overview
From 2026 IRS Form 990-PF · View filing
Total Assets
$1.2M
+9.2% YoY
Annual Giving
$112K
+9.8% YoY
Grant Count
4
+0.0% YoY
Avg Grant Size
$28K
+9.8% YoY
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.
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.
Ready to take the next step with Isidor Wiesbader Foundation Inc?
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2026 grant dollars across all 4 itemized grants.
States
Cities
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.
Grant Insights
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%).
Giving History
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 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2026 | 2025 | 2024 |
|---|---|---|---|
| Total Assets | $1,199,311 | $1,098,333 | $1,168,693 |
| Revenue | $231,528 | $44,882 | $40,049 |
| Expenses | $129,850 | $114,750 | $111,250 |
| Qualifying Distributions | $117,350 | $107,250 | $101,250 |
| Net Investment Income | $49,157 | $44,882 | $42,191 |
| Distributable Amount | $129,196 | $116,306 | $106,968 |
Data update history
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
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.
Here's the math on researching Isidor Wiesbader Foundation Inc by hand.
Explore Open Grants
Browse active grant opportunities in Isidor Wiesbader Foundation Inc's focus areas in our free grants database
Similar Funders
Funders with grantees in common
Blue Star Foundation Inc
Katonah, NY
Assets
$2.4M
Grants
1
Total Given
$105K
The Social Giving Network
Beverly Hills, CA
To facilitate grants and donations to recognized charitable organizations through social media.
Assets
$522K
Grants
4
Total Given
$68K
Abraham & Sonia Rochlin Foundation
Reno, NV
The foundation’s grants support varied charitable work, including relief and health services in Israel, assistance to needy families, and Jewish community and women’s leadership programs. In 2024, grants ranged from $2,000 to $2,075,000, with a median of $22,500; recipients were mainly in New York, with others in Nevada, Massachusetts, and Florida. It gives only to preselected organizations and does not accept unsolicited funding requests.
Assets
$37.8M
Grants
12
Total Given
$2.7M
Fred L Phillips Foundation
Shreveport, LA
The Fred L Phillips Foundation funds a range of charitable organizations, with most of its 2025 grant dollars going to Louisiana organizations and additional support in Mississippi, Texas, Colorado, and elsewhere. Its 2025 grants ranged from $250 to $35,795, with a median award of $2,500. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$1.6M
Grants
15
Total Given
$81K
Albert B Kahn Foundation
Princeton, NJ
The Albert B. Kahn Foundation supports educational, religious, charitable, and health-service organizations, with most 2025 grant dollars going to New Jersey and smaller shares to Texas, Massachusetts, New York, and Pennsylvania. Its 18 grants ranged from $100 to $70,000, with a median of $1,500. It gives only to preselected charitable organizations and does not accept unsolicited requests.
Assets
$1.8M
Grants
18
Total Given
$107K
Leonard & Betty Phillips Foundation
Shreveport, LA
The Leonard & Betty Phillips Foundation funds charitable organizations with varied purposes, including arts, housing, disability services, and health, with most giving in Louisiana. In 2025, grants ranged from $500 to $16,000, with a median of $2,250; the foundation gives only to preselected organizations and does not accept unsolicited requests.
Assets
$1.6M
Grants
20
Total Given
$77K
Yosef Chaim Foundation
Brooklyn, NY
Assets
$146K
Grants
20
Total Given
$6K
Fischmann Family Foundation
Los Angeles, CA
The Fischmann Family Foundation supports education, religious organizations, and humanitarian and community-service work, with most 2024 funding going to California recipients. Its 22 grants ranged from $360 to $100,000, with a median of $11,000; it funds only preselected organizations and does not accept unsolicited requests.
Assets
$8K
Grants
22
Total Given
$487K
George & Irina Schaeffer Foundation
Boca Raton, FL
The foundation supports scholarships, education, medical research, humanitarian projects, and organizations including universities, hospitals, and Jewish cultural groups. In 2024, grants ranged from $180 to $30,000, with a median of $5,000, and went mainly to organizations in Florida, California, New York, Colorado, and Utah. It funds only preselected charitable organizations and does not accept unsolicited requests.
Assets
$-12,752
Grants
24
Total Given
$184K
The Weininger Foundation Inc
New York, NY
The Weininger Foundation funds charitable organizations in education, research, human rights, rehabilitation, and services for people and families in need, with most 2025 grant dollars going to New York State and others to Florida, Washington, DC, California, and New Jersey. Its 2025 grants ranged from $3,000 to $93,000, with a median of $10,000. It supports only preselected organizations and does not accept unsolicited requests.
Assets
$3.7M
Grants
32
Total Given
$635K
David Kahan Family Foundation
Troy, MI
Assets
$3K
Grants
41
Total Given
$77K
Stephen and Regina Savitsky Foundation
Woodmere, NY
The foundation supports Jewish needs and education, community assistance, adult care and counseling, and emotional support, with grants primarily in New York and also in Maryland, New Jersey, and Florida. In 2025, its 49 grants totaled $189,493, with a median grant of $1,000 and awards ranging from $54 to $46,843. It funds preselected organizations only and does not accept unsolicited requests.
Assets
$1.1M
Grants
49
Total Given
$189K
More Funders in New York
Isidor Wiesbader Foundation Inc down — hundreds of funders to go?