Mike & Sofia Segal Foundation
At a glance
Key takeaways
- The foundation's stated interests are intellectual freedom, civil discourse, medical research, Jewish heritage, elder care and climate change, and it says it gives particular attention to areas that have been traditionally underfunded, so check your work against these first.
- The filing shows that half of its 78 grants to organisations were $100,000 or less, with a median of $100,000, although its typical band runs from $25,000 to $600,000 and its largest grant was $3,500,000, so a request in the low six figures sits near the middle of its usual practice.
- It says it favours outstanding leadership and measurable, impactful outcomes, so your proposal should show concrete results, and the filing shows that 77% of its grant dollars to organisations went to groups it had also funded in its earlier filings, which makes existing relationships worth weighing.
- Its geographic focus is not stated; the filing shows grants mainly in New York, District of Columbia, Massachusetts and Florida, but that is a pattern of past giving, not a limit on who may apply.
- Applications are rolling, and the foundation directs organisations to read its qualification criteria and contact it, so make that contact before sending a full proposal.
Overview
Mike & Sofia Segal Foundation is a US private foundation based in New York, NY.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website, with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
The Foundation makes substantial capital and endowment grants to nonprofits with outstanding leadership that can demonstrate measurable, impactful outcomes in its philanthropic interests. Its interests include intellectual freedom and civil discourse, rare diseases, Jewish heritage, elder care and climate change. It seeks to shed light on areas that are often overlooked and traditionally underfunded, supporting organisations and initiatives that make substantial contributions to progress and impact. Its rare-disease interest spans social and medical aspects; its climate-change focus addresses global effects. It also emphasises preserving Jewish heritage and supporting seniors as they age.
Themes
- Intellectual freedom
- Civil discourse
- Medical research
- Jewish heritage
- Elder care
- Climate change
Geographic Focus
No geographic focus is stated; the filings show grants mainly in New York, District of Columbia, Massachusetts and Florida.
How to apply
Organisations considering a grant are directed to read the qualification criteria and contact the Foundation.
Application success factors
- Repeat giving: In its TY2024 filing, 77% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 78 grants to organisations were $100,000 or less.
What the foundation says:
- The Foundation favours nonprofits with outstanding leadership that can demonstrate measurable, impactful outcomes.
- It gives particular attention to areas that have been traditionally underfunded.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
4 other states: 2%
- The largest single recipient received 30% of grant dollars to organisations.
- In tax year 2024, 77% of grant dollars went to organisations Mike & Sofia Segal Foundation had funded in earlier filings.
- <1% of grant dollars went directly to organisations outside the US (Israel, India).
- 5% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 33 grants in tax year 2024 by size
Median $200k (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- Leukemia & Lymphoma Society · Operations$3,500,0002024 tax year
- Ehlers-Danlos Society · Operations$1,406,1082024 tax year
- Hetreodox Academy · Operations$1,000,0002024 tax year
- Moffitt Cancer and Research · Operations$600,0002024 tax year
- Columbia University Center on Global Energy Policy · Operations$600,0002024 tax year
- Jigsaw Educational Productions · Operations$541,7802024 tax year
- American Friends of Alumot Or · Operations$529,5002024 tax year
- Weill Cornell Medical College · Operations$500,0002024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Sofia Segal — Trustee
- Mikhail Segal — Trustee
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $1,945,352 | $1,866,000 | $25,428,476 | Filing for 2022 tax year |
| 2023 tax year | $8,874,145 | $8,597,763 | $16,986,319 | Filing for 2023 tax year |
| 2024 tax year | $12,856,795 | $12,209,388 | $13,277,146 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
Registers and filings
Other sources
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At a glance

Applying to Mike & Sofia Segal Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- info@mssegalfoundation.org
- New York, NY
- mssegalfoundation.org

Applying to Mike & Sofia Segal Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- info@mssegalfoundation.org
- New York, NY
- mssegalfoundation.org