Diamondston Foundation Inc
Diamondston Foundation Inc is a private foundation based in Westfield, New Jersey. Its 2025 filing states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
Diamondston Foundation Inc at a glance
In short: Diamondston Foundation Inc gave $136K across 50 grants in 2025 (avg $3K), top state New York. 48% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $136,000
- +8.3% vs 2024
- Grants made (2025)
- 50
- +42.9% vs 2024
- Average grant
- $2,720
- -24.2% vs 2024
- Median grant
- $1,750
- Total assets
- $2,123,186
- -1.3% vs 2024
- New grantees (estimate)
- 48% first-time grantees (24 of 50, 2025)
- Primary geography
- New York (48% 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 Diamondston Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Its filing lists Michael Margolin as the contact and says to submit any written application.
- Contact
Application contact: Michael Margolin
Mailing address: 610 Shackamaxon Dr, Westfield, NJ 07090
Phone: (212) 697-2310
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Diamondston Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Hairy Cell Leukemia Foundation ($20K). Together the top 10 received $80K.
Grant Size Distribution
190 grants across all recorded years
The most common grant size was under $50K: 190 grants of 190 (100%).
Geographic Focus
Where this funder awards grants
The foundation’s 2025 grant dollars went to recipients in New York (48%), California (22%), Massachusetts (15%), New Jersey (10%), and the District of Columbia (3%).
Grant Distribution by State
Share of 2025 grant dollars across all 50 itemized grants.
States
Cities
Is Diamondston Foundation Inc open to new grantees?
48%
first-time grantees, 2025
In 2025, 24 of 50 grantees (48%) were first-time recipients. First grants averaged $2K; repeat grants $3K. How we count
Medians: $1K first-time, $2K repeat.
- 40% of 2025 grantees were also funded in 2024. Method
- Giving grew 33% from 2022 to 2025. Method
- In 2025 it paid out 111% of its IRS minimum distribution (the 5% rule). 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 $87K (2020) to $136K (2025). In 2025 it made 50 grants totaling $136K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Hairy Cell Leukemia Foundation San Francisco, CA | Charitable | $20,000 |
| Chicken & Egg Pictures Brooklyn, NY | Charitable | $10,000 |
| The Welcome Project Somerville, MA | Charitable | $10,000 |
| UJA-Federation of New York New York, NY | Charitable | $10,000 |
| New Israel Fund New York, NY | Charitable | $6,500 |
| Crohn's & Colitis Foundation NJ Cha Manalapan, NJ | Charitable | $5,000 |
| Doctors Without Borders New York, NY | Charitable | $5,000 |
| Gender Equity Policy Institute Los Angeles, CA | Charitable | $5,000 |
| Tides Foundation New York, NY | Charitable | $5,000 |
| Asali New York, NY | Charitable | $3,000 |
Ready to take the next step with Diamondston Foundation Inc?
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 | $2,123,186 | $115,250 | $161,460 | $136,000 | 50 | $136,000 | $80,165 | $122,951 |
| 2024 | $2,152,048 | $106,635 | $150,380 | $125,575 | 35 | $126,134 | $100,241 | $116,854 |
| 2023 | $2,217,017 | $192,076 | $116,736 | $91,100 | 32 | $91,100 | $171,802 | $104,945 |
| 2022 | $2,141,677 | $205,588 | $125,796 | $102,500 | 34 | $102,500 | $205,588 | $112,023 |
| 2021 | $2,061,885 | $115,625 | $111,860 | $91,000 | 39 | $91,000 | $115,625 | $99,848 |
| 2020 | $2,058,120 | $107,890 | $112,084 | $86,900 | 41 | — | $82,956 | $117,061 |
Under IRS private-foundation payout rules, Diamondston Foundation Inc reported a distributable amount of $123K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its grants support a varied set of charitable organizations. For example, the Hairy Cell Leukemia Foundation says it advances research into the causes and treatment of hairy cell leukemia and provides educational resources and comfort to people affected by the disease. Chicken & Egg Films says it supports women and gender-expansive documentary filmmakers with funding, mentorship, and access.
Other 2025 grantees describe their work as building immigrants’ capacity to shape community decisions (The Welcome Project), advancing gender equality through research, education, and policy development (Gender Equity Policy Institute), producing and developing theater and providing arts education (Manhattan Theatre Club), and providing behavioral healthcare to support individuals and families (The Bridge). The Victim Rights Law Center says it provides legal representation to survivors of rape and sexual assault.
Grantmaking
In filing year 2025, the foundation gave 50 grants totaling $136,000. Grants ranged from $500 to $20,000, with a median of $1,750.
Among the largest listed grants were $20,000 to the Hairy Cell Leukemia Foundation; $10,000 each to Chicken & Egg Pictures, The Welcome Project, and UJA-Federation of New York; and $6,500 to New Israel Fund. Other listed grants included $5,000 each to Crohn’s & Colitis Foundation NJ CHA, Doctors Without Borders, Gender Equity Policy Institute, and Tides Foundation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Michael Margolin as president and treasurer, David Margolin and Susan Smith as vice presidents, and Barabara Margolin as secretary.
Diamondston Foundation Inc is led by Michael Margolin, President Tr on every filing since 2020; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Michael Margolin
President Tr
On filings since 2020
No compensation reported
Barabara Margolin
Secretary
On filings since 2020
No compensation reported
David Margolin
Vice President
On filings since 2020
No compensation reported
Susan Smith
Vice President
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 Diamondston Foundation Inc
How much does Diamondston Foundation Inc give each year?
Diamondston Foundation Inc gave $136K across 50 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $126K across 35 grants.
What is Diamondston Foundation Inc's typical grant size?
Diamondston Foundation Inc's median grant in 2025 was $1,750, and its average grant was $2,720, across 50 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Diamondston Foundation Inc that year got $2K on average.
Where does Diamondston Foundation Inc give grants?
Diamondston Foundation Inc's top state is New York, with 48% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were California (22%) and Massachusetts (15%). The most frequent recipient cities were New York, NY (17 grants), Los Angeles, CA (4 grants), Washington, DC (4 grants) and Somerville, MA (3 grants).
Does Diamondston Foundation Inc give general operating support?
Not in 2025: none of the 50 grants with a stated purpose on Diamondston Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (50 grants).
Who are Diamondston Foundation Inc's largest grantees?
Diamondston Foundation Inc's largest 2025 grantees include Hairy Cell Leukemia Foundation ($20,000), Chicken & Egg Pictures ($10,000) and The Welcome Project ($10,000), according to its 2025 IRS Form 990-PF. Together they received 29% of its itemized 2025 grant dollars.
How large is Diamondston Foundation Inc?
Diamondston Foundation Inc reported $2.1M in total assets on its 2025 IRS Form 990-PF. It paid out $136K in qualifying distributions that year, against a required minimum of $123K (roughly 5% of its investment assets).
What does Diamondston Foundation Inc fund?
No mission statement for the foundation is provided. Its grants support a varied set of charitable organizations. See mission & focus areas ↑
How do I apply for a grant from Diamondston Foundation Inc?
The foundation states that it does not accept unsolicited requests for funds and 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 Diamondston Foundation Inc's EIN?
Diamondston Foundation Inc's EIN (Employer Identification Number) is 13-4112479. IRS Form 990 filing data is available on this page for 2020–2025.
Does Diamondston Foundation Inc 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 October 2026.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS April 28, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 12, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 12, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 2, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS March 5, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS April 28, 2026)
Explore Open Grants
Browse active grant opportunities in Diamondston Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Diamondston Foundation Inc funder profile. GrantGraph. Retrieved October 14, 2026, from https://grantable.co/funders/diamondston-foundation-inc-morg_e400bdcbbb974e8aae0808a48bfb5243
BibTeX
@misc{grantable_134112479_2026,
author = {{Grantable}},
title = {{Diamondston Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/diamondston-foundation-inc-morg_e400bdcbbb974e8aae0808a48bfb5243},
note = {Accessed 2026-10-14. 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 Diamondston Foundation Inc'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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