Weisenburger Foundation
The Weisenburger Foundation is a private foundation based in Greenwich, Connecticut. In its 2025 filing, it reported 18 grants totaling $192,227 to charitable organizations, including organizations based in Connecticut, New York, Florida, and other states.
Weisenburger Foundation at a glance
In short: Weisenburger Foundation gave $192K across 18 grants in 2025 (avg $11K), mostly in Connecticut. 50% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $192,227
- -0.9% vs 2024
- Grants made (2025)
- 18
- -5.3% vs 2024
- Average grant
- $10,679
- +4.6% vs 2024
- Median grant
- $10,000
- Total assets
- $1,674,060
- +5.4% vs 2024
- New grantees (estimate)
- 50% first-time grantees (9 of 18, 2025; small sample)
- Primary geography
- Connecticut (52% 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 Weisenburger Foundation
- 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. No application materials or other application process are specified.
- Contact
Mailing address: 354 Stanwich Road, Greenwich, CT 06830-6527
Phone: (917) 306-3837
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Weisenburger Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Bridges ($47K). Together the top 10 received $161K.
Grant Size Distribution
77 grants across all recorded years
The most common grant size was under $50K: 73 grants of 77 (95%).
Geographic Focus
Where this funder awards grants
In 2025, 52% of grant dollars went to recipients in Connecticut, 14% to New York, 13% to Florida, 5% to Texas, and 10% to recipients whose state is listed as unknown. The reported grants included organizations in Connecticut, New York, Florida, Texas, and Tennessee.
Grant Distribution by State
Share of 2025 grant dollars across all 18 itemized grants.
States
Cities
Is Weisenburger Foundation open to new grantees?
50%
first-time grantees, 2025
In 2025, 9 of 18 grantees (50%) were first-time recipients. With only 18 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $13K; repeat grants $9K. How we count
Medians: $10K first-time, $10K repeat.
- 44% of 2025 grantees were also funded in 2024. Method
- Giving grew 108% from 2022 to 2025. Method
- In 2025 it paid out 96% 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 (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
From 2020 to 2025, annual grant giving ranged from $92K (2022) to $228K (2021). In 2025 it made 18 grants totaling $192K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Bridges Riverside, CT | General Operating Budget | $47,317 |
| Sunrise of Life Ltd | General Operating Budget | $20,000 |
| Tunnel to Towers Staten Island, NY | General Operating Budget | $15,000 |
| St Thomas Moore Darien, CT | General Operating Budget | $14,910 |
| Greenwich Dept of Human Services Greenwich, CT | General Operating Budget | $12,000 |
| Smile Train New York, NY | General Operating Budget | $12,000 |
| Mercy Ships Garden Valley, TX | General Operating Budget | $10,000 |
| Shriners Childrens Hospital Tampa, FL | General Operating Budget | $10,000 |
| St Jude's Childrens Research Hosp Memphis, TN | General Operating Budget | $10,000 |
| Wounded Warrior Project Jacksonville, FL | General Operating Budget | $10,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,674,060 | $282,832 | $196,477 | $192,227 | 18 | $192,227 | $35,761 | $200,976 |
| 2024 | $1,587,952 | $607,062 | $197,525 | $193,907 | 19 | $193,907 | $25,801 | $170,203 |
| 2023 | $1,169,464 | $73,320 | $132,976 | $129,743 | 18 | $129,743 | $13,673 | $135,052 |
| 2022 | $1,229,120 | $33,486 | $96,044 | $92,450 | 13 | $92,450 | $11,616 | $124,761 |
| 2021 | $1,291,678 | $65,667 | $234,045 | $228,000 | 9 | $228,000 | $65,667 | $149,532 |
| 2020 | $1,460,056 | $415,589 | $208,269 | $207,335 | 5 | — | $415,589 | $101,059 |
Under IRS private-foundation payout rules, Weisenburger Foundation reported a distributable amount of $201K for 2025 — the minimum it must pay out in qualifying distributions.
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 working in areas that include cleft care, veterans’ services, community assistance, and historic preservation. For example, Smile Train describes its mission as expanding opportunities for people born with clefts; Neighbor to Neighbor describes its work as providing food, clothing, and basic living essentials to residents in need; and Greenwich Point Conservancy describes its work as restoring and preserving historic structures and other elements of Greenwich Point. These are the grantees’ stated missions, not the foundation’s.
Grantmaking
In filing year 2025, the foundation reported 18 grants totaling $192,227. Grant amounts ranged from $1,000 to $47,317, with a median grant of $10,000.
Among the reported grants were $47,317 to BRIDGES for a general operating budget, $20,000 to Sunrise of Life Ltd for a general operating budget, and $15,000 to Tunnel to Towers for a general operating budget. Other grants included $12,000 to Smile Train and $10,000 to Wounded Warrior Project, both for general operating budgets, and $5,000 each to Greenwich Point Conservancy and Neighbor to Neighbor.
Leadership & Key People
Leadership team and compensation from IRS filings
Randy Weisenburger is listed as a director on the 2025 filing.
Weisenburger Foundation is led by Randy Weisenburger, Director on every filing since 2020 — the only officer listed, and uncompensated.
Officers on the 2025 filing
Randy Weisenburger
Director
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 Weisenburger Foundation
How much does Weisenburger Foundation give each year?
Weisenburger Foundation gave $192K across 18 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $194K across 19 grants.
What is Weisenburger Foundation's typical grant size?
Weisenburger Foundation's median grant in 2025 was $10,000, and its average grant was $10,679, across 18 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Weisenburger Foundation that year got $13K on average.
Where does Weisenburger Foundation give grants?
Weisenburger Foundation gives mostly in Connecticut: 52% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were New York (14%) and Florida (13%). The most frequent recipient cities were Greenwich, CT (6 grants) and Riverside, CT (2 grants).
Does Weisenburger Foundation give general operating support?
Yes: 100% of Weisenburger Foundation's 2025 grants with a stated purpose (18 of 18) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Weisenburger Foundation's largest grantees?
Weisenburger Foundation's largest 2025 grantees include Bridges ($47,317), Sunrise of Life Ltd ($20,000) and Tunnel to Towers ($15,000), according to its 2025 IRS Form 990-PF. Together they received 43% of its itemized 2025 grant dollars.
How large is Weisenburger Foundation?
Weisenburger Foundation reported $1.7M in total assets on its 2025 IRS Form 990-PF. It paid out $192K in qualifying distributions that year, against a required minimum of $201K (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 does Weisenburger Foundation fund?
No mission statement for the foundation is provided. Its 2025 grants went to organizations working in areas that include cleft care, veterans’ services, community assistance, and historic preservation. See mission & focus areas ↑
How do I apply for a grant from Weisenburger 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 Weisenburger Foundation's EIN?
Weisenburger Foundation's EIN (Employer Identification Number) is 81-3904825. IRS Form 990 filing data is available on this page for 2020–2025.
Does Weisenburger Foundation 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
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 7, 2026)
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Weisenburger Foundation funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/weisenburger-foundation-morg_4b95b3fdd3254af5bb6f4f84e592e466
BibTeX
@misc{grantable_813904825_2026,
author = {{Grantable}},
title = {{Weisenburger Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/weisenburger-foundation-morg_4b95b3fdd3254af5bb6f4f84e592e466},
note = {Accessed 2026-10-12. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Weisenburger Foundation'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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