Siebert Williams Shank Foundation
The Siebert Williams Shank Foundation is a private foundation based in New York, New York. It made 81 grants totaling $984,011 in 2024, supporting organizations working in areas that include education, youth development, arts, science, and community services.
Siebert Williams Shank Foundation at a glance
In short: Siebert Williams Shank Foundation gave $984K across 81 grants in 2024 (avg $12K), top state New York. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $984,011
- +28.8% vs 2023
- Grants made (2024)
- 81
- +28.6% vs 2023
- Average grant
- $12,148
- +0.1% vs 2023
- Median grant
- $7,000
- Total assets
- $3,724,673
- -4.9% vs 2023
- Primary geography
- New York (31% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
How to apply to Siebert Williams Shank Foundation
- How to Apply
-
The filing directs applicants to contact the foundation and see the attached application. It lists no restrictions on awards.
- Contact
Application contact: Siebert Williams Shank Foundation
Mailing address: 100 Wall Street 18Th Floor, New York, NY 10005
Phone: (212) 376-4206
Website: https://siebertwilliams.com
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Siebert Williams Shank Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Motown Historical Museum Inc ($100K). Together the top 10 received $430K.
Grant Size Distribution
220 grants across all recorded years
The most common grant size was under $50K: 207 grants of 220 (94%).
Geographic Focus
Where this funder awards grants
In 2024, 31% of grant dollars went to recipients in New York, 21% to Michigan, 14% to California, 8% to New Jersey, and 7% to the District of Columbia. The foundation also announced wildfire-relief grants in California in January 2025.
Grant Distribution by State
Share of 2024 grant dollars across all 81 itemized grants.
States
Cities
How Siebert Williams Shank Foundation gives
- 36% of 2024 grantees were also funded in 2023. Method
- Giving grew 87% from 2021 to 2024. Method
- In 2024 it paid out 580% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2024). 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 2024, annual grant giving ranged from $105K (2020) to $984K (2024). In 2024 it made 81 grants totaling $984K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Motown Historical Museum Inc Detroit, MI | Support for General Use | $100,000 |
| Nan Newark Tech World Newark, NJ | Support for General Use | $75,000 |
| Harlem School of the Arts New York, NY | Support for General Use | $50,000 |
| Urban Initiatives Inc Chicago, IL | Support for General Use | $50,000 |
| California Academy of Sciences San Francisco, CA | Support for General Use | $30,000 |
| Research Foundation of the City University of New York New York, NY | Support for General Use | $25,000 |
| National Action Network Foundation New York, NY | Support for General Use | $25,000 |
| Masters Tournament Foundation Augusta, GA | Support for General Use | $25,000 |
| United Way for Southeastern Michcigan Detroit, MI | Support for General Use | $25,000 |
| Paralyzed Veterans of America Washington, DC | Support for General Use | $25,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $3,724,673 | $900,145 | $1,053,437 | $984,011 | 81 | $994,026 | $145,734 | $171,460 |
| 2023 | $3,917,965 | $1,030,456 | $828,402 | $764,200 | 63 | $770,246 | $27,300 | $166,619 |
| 2022 | $3,675,911 | $1,000,000 | $570,794 | $514,750 | 36 | $515,794 | — | $148,280 |
| 2021 | $3,246,705 | $2,000,000 | $579,013 | $527,350 | 38 | $529,013 | — | $80,797 |
| 2020 | $1,825,718 | $2,000,000 | $174,282 | $105,000 | 2 | — | — | $8,011 |
Under IRS private-foundation payout rules, Siebert Williams Shank Foundation reported a distributable amount of $171K for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The available statements do not specify a separate foundation mission. Its 2024 grants included organizations whose own missions illustrate the range of recipients: NAN Newark Tech World says it creates technology-rich after-school learning opportunities and educational programs for Newark students, job seekers, and families; Urban Initiatives says it provides sports-based youth development programs addressing equity gaps for Chicago students; and Harlem School of the Arts says it empowers young people and adults through dance, music, theater, and visual arts.
Other 2024 recipients included the California Academy of Sciences, which describes its mission as regenerating the natural world through science, learning, and collaboration, and Tuxedo Park School, which says it prepares students for a changing world and nurtures its core values. The foundation also supported the Research Foundation of the City University of New York and the Council on Foreign Relations.
Grantmaking
In 2024, the foundation reported 81 grants totaling $984,011. Grant amounts ranged from $500 to $100,000, with a median grant of $7,000. The largest grants included $100,000 to Motown Historical Museum, $75,000 to NAN Newark Tech World, and $50,000 each to Harlem School of the Arts and Urban Initiatives. The listed purposes for these grants were support for general use.
In January 2025, the foundation announced a separate $100,000 contribution for Los Angeles wildfire relief: $50,000 to the California Community Foundation Wildfire Recovery Fund and $50,000 to the Los Angeles Fire Department Foundation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Sobani Warner as president; Daniel Diaz as controller; Melissa C. Rowe as secretary; Dianne Calabrisotto, William Thompson Jr., and Ateesh Chanda as directors; and Jackson Lam as vice president of finance.
Siebert Williams Shank Foundation is led by Sobani Warner, President on every filing since 2020; all 7 officers listed in 2024 are compensated.
Officers on the 2024 filing
Sobani Warner
President
On filings since 2020
1 hr/week
$10K (2020) → $10K (2024)
Ateesh Chanda
Director
On filings since 2020
1 hr/week
$10K (2020) → $10K (2024)
Dianne Calabrisotto
Director
On filings since 2020
1 hr/week
$10K (2020) → $10K (2024)
William Thompson Jr.
Director
Chair → Director, 2021
On filings since 2020
1 hr/week
$10K (2020) → $10K (2024)
Daniel Diaz
Controller
On filings since 2020
1 hr/week
$5K (2020) → $5K (2024)
Melissa C. Rowe
Secretary
On filings since 2020
1 hr/week
$5K (2020) → $5K (2024)
Jackson Lam
Vice President of Finance
On filings since 2022
1 hr/week
$5K (2022) → $5K (2024)
Former officers (1)
- Former: Vivake Persaud (2020) — Treasurer
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $10K, to Sobani Warner (President). 7 officers or directors reported compensation on that filing.
Frequently asked questions about Siebert Williams Shank Foundation
How much does Siebert Williams Shank Foundation give each year?
Siebert Williams Shank Foundation gave $984K across 81 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $764K across 63 grants.
What is Siebert Williams Shank Foundation's typical grant size?
Siebert Williams Shank Foundation's median grant in 2024 was $7,000, and its average grant was $12,148, across 81 grants on its 2024 IRS Form 990-PF.
Where does Siebert Williams Shank Foundation give grants?
Siebert Williams Shank Foundation's top state is New York, with 31% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were Michigan (21%) and California (14%). The most frequent recipient cities were New York, NY (16 grants), Detroit, MI (9 grants), San Francisco, CA (6 grants) and Washington, DC (5 grants).
Does Siebert Williams Shank Foundation give general operating support?
Yes: 100% of Siebert Williams Shank Foundation's 2024 grants with a stated purpose (81 of 81) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are Siebert Williams Shank Foundation's largest grantees?
Siebert Williams Shank Foundation's largest 2024 grantees include Motown Historical Museum Inc ($100,000), Nan Newark Tech World ($75,000) and Harlem School of the Arts ($50,000), according to its 2024 IRS Form 990-PF. Together they received 23% of its itemized 2024 grant dollars.
How large is Siebert Williams Shank Foundation?
Siebert Williams Shank Foundation reported $3.7M in total assets on its 2024 IRS Form 990-PF. It paid out $994K in qualifying distributions that year, against a required minimum of $171K (roughly 5% of its investment assets).
What does Siebert Williams Shank Foundation fund?
The available statements do not specify a separate foundation mission. See mission & focus areas ↑
How do I apply for a grant from Siebert Williams Shank Foundation?
The filing directs applicants to contact the foundation and see the attached application. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Siebert Williams Shank Foundation's EIN?
Siebert Williams Shank Foundation's EIN (Employer Identification Number) is 85-2585793. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Siebert Williams Shank Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/siebert-williams-shank-foundation-morg_46680678132f415aaad8c6cf4c2373b0
BibTeX
@misc{grantable_852585793_2026,
author = {{Grantable}},
title = {{Siebert Williams Shank Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/siebert-williams-shank-foundation-morg_46680678132f415aaad8c6cf4c2373b0},
note = {Accessed 2026-10-11. 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 Siebert Williams Shank 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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