John and Margo Catsimatidis Foundation Inc
The John and Margo Catsimatidis Foundation Inc is a private foundation based in New York, NY. Its 2024 filing reports grants to charitable organizations, including organizations involved in research, education, hunger relief, heritage, and community support.
John and Margo Catsimatidis Foundation Inc at a glance
In short: John and Margo Catsimatidis Foundation Inc gave $678K across 12 grants in 2024 (avg $57K), mostly in New York. 50% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $678,441
- +67.0% vs 2023
- Grants made (2024)
- 12
- -64.7% vs 2023
- Average grant
- $56,537
- +373.1% vs 2023
- Median grant
- $50,000
- Total assets
- $14,313
- -60.1% vs 2023
- New grantees (estimate)
- 50% first-time grantees (6 of 12, 2024; small sample)
- Primary geography
- New York (71% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to John and Margo Catsimatidis Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests; it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 800 Third Avenue 5Th Floor, New York, NY 10022
Phone: (212) 956-5770
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who John and Margo Catsimatidis Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was New York Stem Cell Foundation Inc ($200K). Together the top 10 received $654K.
Grant Size Distribution
141 grants across all recorded years
The most common grant size was under $50K: 114 grants of 141 (81%).
Geographic Focus
Where this funder awards grants
In 2024, 71% of grant dollars went to recipients in New York, 10% to Arkansas, 8% to Florida, 7% to Wisconsin, and 3% to Maryland.
Grant Distribution by State
Share of 2024 grant dollars across all 12 itemized grants.
States
Cities
Is John and Margo Catsimatidis Foundation Inc open to new grantees?
50%
first-time grantees, 2024
In 2024, 6 of 12 grantees (50%) were first-time recipients. With only 12 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $71K; repeat grants $42K. How we count
Medians: $50K first-time, $36K repeat.
- 42% of 2024 grantees were also funded in 2023. Method
- Giving held roughly steady from 2021 to 2024 (−18%). Method
- In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). 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 $406K (2023) to $1.8M (2020). In 2024 it made 12 grants totaling $678K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| New York Stem Cell Foundation Inc New York, NY | To accelerate cures for the major diseases of our time through stem cell research, | $200,000 |
| Columbia University New York, NY | general fund | $100,000 |
| WABC Radio Foundation New York, NY | General Fund | $71,000 |
| Russian Heritage Foundation St Petersburg, FL | To encourage interest in and understanding of russian heritage among all communities in the us,as well as to promote reciprocal interest in and understanding of american heritage among global russian-speaking communities | $56,729 |
| Alfred E Smith Memorial Foundation New York, NY | General Fund | $50,000 |
| Manhattan College Bronx, AR | To provide a contemporary, person-centered educational experience that prepares graduates for lives of personal development, professional successes, civic engagement, and service to their fellow human beings. | $50,000 |
| MKE Host Committee Milwaukee, WI | General fund | $50,000 |
| Greek Orthodox Ladies Philoptochos Society Inc New York, NY | General fund | $35,000 |
| Greek Orthodox Church of the Hamptons Southampton, NY | general fund | $21,000 |
| Loyola Early Learning Center Inc Baltimore, MD | General Fund | $20,000 |
Ready to take the next step with John and Margo Catsimatidis Foundation Inc?
Financial History
Multi-year comparison from IRS filings
The 2023 filing reported 34 grants, and the 2022 filing reported 34 grants.
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $14,313 | $675,400 | $696,949 | $678,441 | 12 | $692,726 | $250 | $4,260 |
| 2023 | $35,862 | $885,343 | $406,858 | $406,333 | 34 | $406,333 | $49 | $4,774 |
| 2022 | — | $1,028,107 | $1,471,222 | $1,460,747 | 34 | $1,460,747 | — | $8,649 |
| 2021 | $492 | $1,276,781 | $824,469 | $823,932 | 32 | $823,932 | $460,482 | $1,794 |
| 2020 | $8,702 | $1,845,010 | $1,794,359 | $1,791,862 | 29 | — | — | $4,564 |
Under IRS private-foundation payout rules, John and Margo Catsimatidis Foundation Inc reported a distributable amount of $4K 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 filing information does not state a mission for the foundation. Its 2024 grants show support for organizations in areas including stem cell research, education, food assistance, heritage, and community support. WABC Radio Foundation describes its own mission as supporting local efforts that provide necessities to New York City residents in need.
Grantmaking
In 2024, the foundation reported 12 grants totaling $678,441. Grant amounts ranged from $5,000 to $200,000, with a median of $50,000. Notable grants included $200,000 to New York Stem Cell Foundation Inc for stem cell research, $100,000 to Columbia University for its general fund, and $71,000 to WABC Radio Foundation. Other recipients included the russian heritage foundation ($56,729), Alfred E Smith Memorial Foundation ($50,000), and MKE Host Committee ($50,000).
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists John Catsimatidis as president and Margo Catsimatidis as treasurer.
John and Margo Catsimatidis Foundation Inc is led by John Catsimatidis, President on every filing since 2020; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
John Catsimatidis
President
On filings since 2020
1 hr/week
No compensation reported
Margo Catsimatidis
Treasurer
On filings since 2020
1 hr/week
No compensation reported
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.
Frequently asked questions about John and Margo Catsimatidis Foundation Inc
How much does John and Margo Catsimatidis Foundation Inc give each year?
John and Margo Catsimatidis Foundation Inc gave $678K across 12 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $406K across 34 grants.
What is John and Margo Catsimatidis Foundation Inc's typical grant size?
John and Margo Catsimatidis Foundation Inc's median grant in 2024 was $50,000, and its average grant was $56,537, across 12 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from John and Margo Catsimatidis Foundation Inc that year got $71K on average.
Where does John and Margo Catsimatidis Foundation Inc give grants?
John and Margo Catsimatidis Foundation Inc gives mostly in New York: 71% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Arkansas (10%) and Florida (8%). The most frequent recipient cities were New York, NY (6 grants) and Bronx, AR (2 grants).
Does John and Margo Catsimatidis Foundation Inc give general operating support?
Yes: 67% of John and Margo Catsimatidis Foundation Inc's 2024 grants with a stated purpose (8 of 12) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are John and Margo Catsimatidis Foundation Inc's largest grantees?
John and Margo Catsimatidis Foundation Inc's largest 2024 grantees include New York Stem Cell Foundation Inc ($200,000), Columbia University ($100,000) and WABC Radio Foundation ($71,000), according to its 2024 IRS Form 990-PF. Together they received 55% of its itemized 2024 grant dollars.
How large is John and Margo Catsimatidis Foundation Inc?
John and Margo Catsimatidis Foundation Inc reported $14K in total assets on its 2024 IRS Form 990-PF. It paid out $693K in qualifying distributions that year, against a required minimum of $4K (roughly 5% of its investment assets).
What does John and Margo Catsimatidis Foundation Inc fund?
The available filing information does not state a mission for the foundation. Its 2024 grants show support for organizations in areas including stem cell research, education, food assistance, heritage, and community support. See mission & focus areas ↑
How do I apply for a grant from John and Margo Catsimatidis Foundation Inc?
The foundation does not accept unsolicited requests; 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 John and Margo Catsimatidis Foundation Inc's EIN?
John and Margo Catsimatidis Foundation Inc's EIN (Employer Identification Number) is 13-4090349. IRS Form 990 filing data is available on this page for 2020–2024.
Does John and Margo Catsimatidis 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 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
Live grants for the work John and Margo Catsimatidis Foundation Inc funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in John and Margo Catsimatidis Foundation Inc's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
May and Samuel Rudin Family Foundation Inc
New York, NY
The foundation supports cultural organizations, youth development, health, education, and civic initiatives, with most 2024 grant dollars going to organizations in New York and smaller shares to Florida and California. It made 93 grants totaling about $1.72 million, with a median grant of $10,000 and awards ranging from $2,500 to $375,000. It funds only preselected charitable organizations and does not accept unsolicited requests.
Assets
$113K
Grants
93
Total Given
$1.7M
Bristol-Myers Squibb Foundation Inc
Princeton, NJ
The Bristol-Myers Squibb Foundation supports health access and stronger health systems, with a focus on adult and pediatric cancers, blood disorders, brain health, and clinical-trial participation in the United States, Brazil, India, and ten Sub-Saharan African countries. In 2024, its median grant was about $134,000, though awards varied widely; it does not state whether it accepts unsolicited requests, and advises prospective applicants to contact the Foundation about its process.
Assets
$83.3M
Grants
144
Total Given
$67.7M
IAC Charitable Foundation Inc
New York, NY
IAC Charitable Foundation supports education, human services, and community development, with 72% of its 2025 grant dollars going to New York recipients. Its grants ranged from $2,500 to $300,000, with a median of $10,000; it does not restrict giving to preselected organizations, but the information does not state whether it accepts unsolicited requests.
Assets
$23.1M
Grants
71
Total Given
$1.2M
Aetna Foundation Inc
Hartford, CT
Aetna Foundation supported health and wellness, access to health care, and related community needs; its 2021 grants ranged from $5,000 to $1 million, with a median of $40,000, and went to organizations across multiple states, especially in D.C. and Connecticut. Its 2021 filing was marked final, so it appears to have ended or be winding down grantmaking; that filing said there were no restrictions on who could apply and pointed applicants to its website for application materials.
Assets
—
Grants
65
Total Given
$7.2M
The Francesco and Mary Giambelli Foundation Inc
Wilmington, DE
The Francesco and Mary Giambelli Foundation funds Italian culture, education and scholarships, healthcare and medical research, food assistance, and other charitable work, with most grants going to New York organizations. In 2024, grants ranged from $830 to $200,000, with a median of $17,500. It funds preselected organizations and does not accept unsolicited requests; proposals are submitted only by invitation.
Assets
$26.4M
Grants
66
Total Given
$1.8M
United Way Worldwide
Alexandria, VA
United Way Worldwide funds community programs focused on youth opportunity, health, financial security, education, and disaster relief, with 2024 grants made across multiple U.S. states and internationally. Its 209 reported grants ranged from $5,100 to $736,333, with a median of $22,675. It does not state whether it accepts unsolicited grant requests.
Assets
$68.0M
Grants
209
Total Given
$11.4M
More similar funders
More Funders in New York
Cite this profile
Grantable. (2026). John and Margo Catsimatidis Foundation Inc funder profile. GrantGraph. Retrieved October 20, 2026, from https://grantable.co/funders/john-and-margo-catsimatidis-foundation-inc-morg_00863ccc59fb4af08eb5871902c3531c
BibTeX
@misc{grantable_134090349_2026,
author = {{Grantable}},
title = {{John and Margo Catsimatidis Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/john-and-margo-catsimatidis-foundation-inc-morg_00863ccc59fb4af08eb5871902c3531c},
note = {Accessed 2026-10-20. 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 John and Margo Catsimatidis 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.
John and Margo Catsimatidis Foundation Inc down — hundreds of funders to go?