Martin R Prince Charitable
Martin R Prince Charitable is a private foundation based in New York, NY. Its 2025 filing reports grants to charitable organizations including universities, schools, and environmental organizations.
Martin R Prince Charitable at a glance
In short: Martin R Prince Charitable gave $1.1M across 27 grants in 2025 (avg $41K), mostly in Massachusetts. 7% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $1,097,600
- +9.3% vs 2024
- Grants made (2025)
- 27
- +35.0% vs 2024
- Average grant
- $40,652
- -19.0% vs 2024
- Median grant
- $10,000
- Total assets
- $19,831,619
- -0.2% vs 2024
- New grantees (estimate)
- 7% first-time grantees (2 of 27, 2025)
- Primary geography
- Massachusetts (57% 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 Martin R Prince Charitable
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 515 E 72Nd Street 21A, New York, NY 10021
Phone: (212) 935-6456
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Martin R Prince Charitable funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was President and Fellows of Harvard College ($313K). Together the top 10 received $983K.
Grant Size Distribution
138 grants across all recorded years
The most common grant size was under $50K: 113 grants of 138 (82%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars went to recipients in Massachusetts (57%), New York (13%), California (9%), Michigan (9%), and the District of Columbia (8%).
Grant Distribution by State
Share of 2025 grant dollars across all 27 itemized grants.
States
Cities
Is Martin R Prince Charitable open to new grantees?
7%
first-time grantees, 2025
In 2025, 2 of 27 grantees (7%) were first-time recipients. First grants averaged $7K; repeat grants $43K. How we count
Medians: $7K first-time, $10K repeat.
- 63% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+13%). Method
- In 2025 it paid out 93% 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 (2019–2025). 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 2019 to 2025, annual grant giving ranged from $794K (2020) to $1.1M (2025). In 2025 it made 27 grants totaling $1.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| President and Fellows of Harvard College Cambridge, MA | Unrestricted for Purposes of Organization | $312,500 |
| Massachusetts Institute of Technology Cambridge, MA | Unrestricted for Purposes of Organization | $300,000 |
| Earthjustice San Francisco, CA | Unrestricted for Purposes of Organization | $100,000 |
| University of Michigan Ann Arbor, MI | Unrestricted for Purposes of Organization | $100,000 |
| Greenpeace Fund Washington, DC | Unrestricted for Purposes of Organization | $50,000 |
| British Schools and Universities Foundation New York, NY | Unrestricted for Purposes of Organization | $30,100 |
| FOS Feminista New York, NY | Unrestricted for Purposes of Organization | $25,000 |
| The Nature Conservancy Arlington, VA | Unrestricted for Purposes of Organization | $25,000 |
| The Buckley School New York, NY | Unrestricted for Purposes of Organization | $20,000 |
| The Chapin School New York, NY | Unrestricted for Purposes of Organization | $20,000 |
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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 | $19,831,619 | $1,207,971 | $1,236,869 | $1,097,600 | 27 | $1,097,600 | $1,095,989 | $1,177,220 |
| 2024 | $19,869,441 | $1,950,034 | $1,144,297 | $1,004,000 | 20 | $1,004,000 | $1,961,363 | $1,049,991 |
| 2023 | $19,057,702 | $1,626,015 | $1,129,471 | $1,004,000 | 30 | $1,004,000 | $1,353,377 | $945,221 |
| 2022 | $18,558,236 | $1,720,436 | $1,089,880 | $968,000 | 29 | $968,000 | $1,153,847 | $951,448 |
| 2021 | $17,929,959 | $2,416,600 | $937,000 | $814,600 | 32 | — | $1,755,216 | $927,160 |
| 2020 | $16,454,153 | $2,438,619 | $892,125 | $794,100 | 32 | — | $1,591,296 | $804,272 |
| 2019 | $14,903,587 | $1,217,844 | $887,939 | $802,300 | 40 | — | $982,588 | $755,826 |
Under IRS private-foundation payout rules, Martin R Prince Charitable reported a distributable amount of $1.2M 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 show support for organizations with varied missions. Harvard describes its work as undergraduate, graduate, and professional education and research; MIT says it advances knowledge and educates students in science, technology, and other areas of scholarship. Earthjustice describes its work as environmental law, including protecting health and wildlife, advancing clean energy, and combating climate change. The Nature Conservancy says its mission is to conserve the lands and waters on which all life depends.
Grantmaking
In filing year 2025, the foundation made 27 grants totaling $1,097,600. Grant amounts ranged from $1,000 to $312,500, with a median of $10,000. The stated purposes for the largest grants were unrestricted for the recipient organizations’ purposes.
The largest grants included $312,500 to President and Fellows of Harvard College, $300,000 to Massachusetts Institute of Technology, $100,000 each to Earthjustice and the University of Michigan, and $50,000 to Greenpeace Fund.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Martin R Prince as president and director, Fred Prince as secretary and director, and Alan S Honig as treasurer and director.
Martin R Prince Charitable is led by Martin R. Prince, President & Director since 2020 (on filings since 2019); none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Martin R. Prince
President & Director
President → President & Director, 2020
On filings since 2019
No compensation reported
Alan S. Honig
Treasurer & Director
Treasurer → Treasurer & Director, 2020
On filings since 2019
No compensation reported
Fred Prince
Secretary & Director
Secretary → Secretary & Director, 2020
On filings since 2019
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "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 Martin R Prince Charitable
How much does Martin R Prince Charitable give each year?
Martin R Prince Charitable gave $1.1M across 27 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.0M across 20 grants.
What is Martin R Prince Charitable's typical grant size?
Martin R Prince Charitable's median grant in 2025 was $10,000, and its average grant was $40,652, across 27 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Martin R Prince Charitable that year got $7K on average.
Where does Martin R Prince Charitable give grants?
Martin R Prince Charitable gives mostly in Massachusetts: 57% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were New York (13%) and California (9%). The most frequent recipient cities were New York, NY (10 grants), Washington, DC (7 grants), Cambridge, MA (2 grants) and San Francisco, CA (2 grants).
Does Martin R Prince Charitable give general operating support?
Yes: 100% of Martin R Prince Charitable's 2025 grants with a stated purpose (27 of 27) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Martin R Prince Charitable's largest grantees?
Martin R Prince Charitable's largest 2025 grantees include President and Fellows of Harvard College ($312,500), Massachusetts Institute of Technology ($300,000) and Earthjustice ($100,000), according to its 2025 IRS Form 990-PF. Together they received 65% of its itemized 2025 grant dollars.
How large is Martin R Prince Charitable?
Martin R Prince Charitable reported $19.8M in total assets on its 2025 IRS Form 990-PF. It paid out $1.1M in qualifying distributions that year, against a required minimum of $1.2M (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 Martin R Prince Charitable fund?
No mission statement for the foundation is provided. Its 2025 grants show support for organizations with varied missions. See mission & focus areas ↑
How do I apply for a grant from Martin R Prince Charitable?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Martin R Prince Charitable's EIN?
Martin R Prince Charitable's EIN (Employer Identification Number) is 20-2058883. IRS Form 990 filing data is available on this page for 2019–2025.
Does Martin R Prince Charitable 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
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS February 17, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 19, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 24, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS March 11, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 23, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS March 3, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 11, 2026)
- IRS filings on file for fiscal years 2019–2025
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Cite this profile
Grantable. (2026). Martin R Prince Charitable funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/martin-r-prince-charitable-morg_e652cd2a49bb44c2b4d3f32bf87e7037
BibTeX
@misc{grantable_202058883_2026,
author = {{Grantable}},
title = {{Martin R Prince Charitable funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/martin-r-prince-charitable-morg_e652cd2a49bb44c2b4d3f32bf87e7037},
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 Martin R Prince Charitable'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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