The Carl Marks Foundation Inc
The Carl Marks Foundation Inc is a private foundation based in Wilmington, Delaware. Its 2025 filing lists grants to charitable organizations working in areas including health care and research, humanitarian response, children’s programs, and sight restoration.
The Carl Marks Foundation Inc at a glance
In short: The Carl Marks Foundation Inc gave $680K across 31 grants in 2025 (avg $22K), top state Connecticut. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $680,230
- -14.2% vs 2024
- Grants made (2025)
- 31
- -38.0% vs 2024
- Average grant
- $21,943
- +38.5% vs 2024
- Median grant
- $9,000
- Total assets
- $18,832,942
- +79.0% vs 2024
- Primary geography
- Connecticut (33% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
How to apply to The Carl Marks Foundation Inc
- 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: Foundation Source 501 Silverside Rd, Wilmington, DE 19809-1377
Phone: (800) 839-1754
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Carl Marks Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Childrens Memorial Hospital ($122K). Together the top 10 received $565K.
Grant Size Distribution
175 grants across all recorded years
The most common grant size was under $50K: 153 grants of 175 (87%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars by recipient state went to Connecticut (33%), Illinois (21%), Minnesota (18%), and California (15%); Maryland received 3%.
Grant Distribution by State
Share of 2025 grant dollars across all 31 itemized grants.
States
Cities
How The Carl Marks Foundation Inc gives
- 83% of 2025 grantees were also funded in 2024. Method
- Giving fell 48% from 2022 to 2025. Method
- In 2025 it paid out 46% 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 (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 $256K (2023) to $2.3M (2019). In 2025 it made 31 grants totaling $680K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Childrens Memorial Hospital Chicago, IL | Enhancing Multidisciplinary Care for Medical Complex Patients/Program in Inflammation, Immunity and the Microbiome | $122,130 |
| Seva Foundation Berkeley, CA | Service Delivery in Humla and Mustang Provinces, Nepal; Nepal RARE Study; Nepal Diabetic Eye Care and Remedies for Native Americans | $94,600 |
| International Rescue Committee Inc Albert Lea, MN | General & Unrestricted | $75,000 |
| Yale University New Haven, CT | Dr. Inderjit Singh Pulmonary Vascular Research Fund | $63,000 |
| NMDP Foundation Minneapolis, MN | Patient Assistance Fund | $50,000 |
| Save the Children Federation Inc Fairfield, CT | Ending Child Marriage in Sierra Leone | $50,000 |
| Yale University New Haven, CT | Cardiovascular Diagnostics Innovation Fund led by Dr. Samit Shah | $45,000 |
| Americares Foundation Inc Stamford, CT | General & Unrestricted | $25,000 |
| Partners in Health a Nonprofit Corporation Frederick, MD | General & Unrestricted | $15,000 |
| National Tay Sachs & Allied Diseases Association I Brighton, MA | Katie and Allie Buryk Research Fund | $12,500 |
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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 | $18,832,942 | $9,155,215 | $842,726 | $680,230 | 31 | $836,556 | $9,154,945 | $1,812,856 |
| 2024 | $10,520,453 | $650,760 | $953,122 | $792,391 | 50 | $944,367 | $650,605 | $1,428,531 |
| 2023 | $10,822,815 | $870,991 | $417,248 | $256,080 | 3 | $401,757 | $867,700 | $1,221,293 |
| 2022 | $10,369,072 | $2,550,142 | $1,493,201 | $1,310,008 | 5 | $1,455,047 | $2,547,088 | $1,257,317 |
| 2021 | $9,312,131 | $1,716,474 | $1,391,787 | $1,257,640 | 86 | — | $1,713,263 | $978,386 |
| 2020 | $8,987,444 | $767,296 | $2,377,175 | $2,186,426 | 116 | — | $759,427 | $775,214 |
| 2019 | $10,596,823 | $781,518 | $2,532,305 | $2,300,263 | 122 | — | $777,305 | $863,874 |
Under IRS private-foundation payout rules, The Carl Marks Foundation Inc reported a distributable amount of $1.8M 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 grants include support for medical care and research, patient assistance, humanitarian work, child-focused programs, and vision care. For example, Seva Foundation says it partners worldwide to preserve and restore sight, with a vision of a world free of avoidable blindness. The International Rescue Committee says it responds to humanitarian crises and helps people affected by conflict and disaster survive and recover. Save the Children describes its work as international children’s relief and development.
Grantmaking
In 2025, the foundation made 31 grants totaling $680,230. Awards ranged from $1,000 to $122,130, with a median of $9,000. Among the largest grants were $122,130 to Children’s Memorial Hospital for multidisciplinary care for medically complex patients and a program in inflammation, immunity, and the microbiome; $94,600 to Seva Foundation for work in Nepal and with Native Americans; $75,000 to the International Rescue Committee for general and unrestricted support; and $63,000 to Yale University for the Dr. Inderjit Singh Pulmonary Vascular Research Fund.
Other 2025 awards included $50,000 to NMDP Foundation for a patient assistance fund, $50,000 to Save the Children Federation for work to end child marriage in Sierra Leone, and $45,000 to Yale University for a cardiovascular diagnostics innovation fund. Partners in Health received $15,000 for general and unrestricted support. Partners in Health describes its work as bringing modern medical science to vulnerable communities worldwide.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Andrew M. Boas as Co-President, Director, and Chairman; Carol A. Boas as Treasurer and Director; Carol L. Boas as Assistant Treasurer and Director; Rick Boas as Director and Vice Chair; Mark Claster as Co-President and Director; Susan B. Claster as Director and Vice Chair; and Kate Liebman as Secretary.
The Carl Marks Foundation Inc is led by Andrew M Boas, Co-Pres, Director & Chairman on every filing since 2019; none of the 6 officers listed in 2025 report compensation.
Officers on the 2025 filing
Andrew M Boas
Co-Pres, Director & Chairman
On filings since 2019
1 hr/week
No compensation reported
Carol L Boas
Treasurer, Director, Assistant Treasurer & Director
On filings since 2019
1 hr/week
No compensation reported
Mark Claster
Co-Pres & Director
On filings since 2019
1 hr/week
No compensation reported
Rick Boas
Director & Vice Chair
Director, Vice President & Vice Chair → Director & Vice Chair, 2024
On filings since 2019
1 hr/week
No compensation reported
Susan B Claster
Director & Vice Chair
Director, Vice President & Vice Chair → Director & Vice Chair, 2024
On filings since 2019
1 hr/week
No compensation reported
Kate Liebman
Secretary
On filings since 2019
10 hrs/week
No compensation reported
Former officers (1)
- Former: Jack Levins (2019) — Assistant Secretary & Assistant Treasurer
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 The Carl Marks Foundation Inc
How much does The Carl Marks Foundation Inc give each year?
The Carl Marks Foundation Inc gave $680K across 31 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $792K across 50 grants.
What is The Carl Marks Foundation Inc's typical grant size?
The Carl Marks Foundation Inc's median grant in 2025 was $9,000, and its average grant was $21,943, across 31 grants on its 2025 IRS Form 990-PF.
Where does The Carl Marks Foundation Inc give grants?
The Carl Marks Foundation Inc's top state is Connecticut, with 33% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Illinois (21%) and Minnesota (18%). The most frequent recipient cities were Chicago, IL (2 grants), New Haven, CT (2 grants) and Stamford, CT (2 grants).
Does The Carl Marks Foundation Inc give general operating support?
Yes: 55% of The Carl Marks Foundation Inc's 2025 grants with a stated purpose (17 of 31) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Carl Marks Foundation Inc's largest grantees?
The Carl Marks Foundation Inc's largest 2025 grantees include Childrens Memorial Hospital ($122,130), Yale University ($108,000 across 2 grants) and Seva Foundation ($94,600), according to its 2025 IRS Form 990-PF. Together they received 48% of its itemized 2025 grant dollars.
How large is The Carl Marks Foundation Inc?
The Carl Marks Foundation Inc reported $18.8M in total assets on its 2025 IRS Form 990-PF. It paid out $837K in qualifying distributions that year, against a required minimum of $1.8M (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 The Carl Marks Foundation Inc fund?
No mission statement for the foundation is provided. Its grants include support for medical care and research, patient assistance, humanitarian work, child-focused programs, and vision care. See mission & focus areas ↑
How do I apply for a grant from The Carl Marks Foundation Inc?
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 The Carl Marks Foundation Inc's EIN?
The Carl Marks Foundation Inc's EIN (Employer Identification Number) is 13-6169215. IRS Form 990 filing data is available on this page for 2019–2025.
Does The Carl Marks Foundation Inc accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 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 6, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 12, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS March 1, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 1, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 11, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 27, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 3, 2026)
- IRS filings on file for fiscal years 2019–2025
Explore Open Grants
Browse active grant opportunities in The Carl Marks Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). The Carl Marks Foundation Inc funder profile. GrantGraph. Retrieved October 10, 2026, from https://grantable.co/funders/the-carl-marks-foundation-inc-morg_0ecab1aea70943f29e86813db9972e54
BibTeX
@misc{grantable_136169215_2026,
author = {{Grantable}},
title = {{The Carl Marks Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-carl-marks-foundation-inc-morg_0ecab1aea70943f29e86813db9972e54},
note = {Accessed 2026-10-10. 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 The Carl Marks 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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