Greentree Foundation
At a glance
This funder does not accept unsolicited applications. The foundation chooses the organisations it funds itself.
Key takeaways
- Contributions go only to preselected organisations and unsolicited requests are not accepted, so a cold application is unlikely to be considered; a warm introduction is the realistic route.
- Its published priority area, as reported in other published sources, is the Town of North Hempstead, and its stated themes are peace and human rights, cooperation among nations, land and wildlife management, and ecology education, so work outside these is unlikely to fit.
- Half of its grants to organisations are $75,000 or less, and its typical grant band runs from $2,500 to $200,000, so a request should be sized toward the middle of that range rather than the top.
- In the filing, 57% of grant dollars to organisations went to groups it had also funded in its two earlier filings, so an existing relationship matters a great deal.
Overview
Greentree Foundation is a US private foundation based in Manhasset, NY.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website and other web pages about the foundation (manhassetcommunityfund.org), with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
The Greentree Foundation’s direct work centres on international meetings and programmes devoted to advancing peace, human rights and cooperation among nations. It also manages the Greentree estate in an environmentally responsible way, conserving much of it in its natural state and undertaking sustainable land and wildlife management. Its ecology workshop offers teachers field-based learning about Long Island’s natural world and techniques for bringing nature into school curricula. In local grantmaking, the Foundation established a fund administered by a community organisation for grants to groups addressing priority needs in the Town of North Hempstead. Its filings also record support for charities and organisations responding to community needs in Nassau and Suffolk counties and for organisations benefiting the Town of North Hempstead.
Themes
- Peace and human rights
- Cooperation among nations
- Land and wildlife management
- Ecology education
Geographic Focus
Priority: Town of North Hempstead. (as reported in other published sources)
How to apply
Contributions go only to preselected charitable organisations; unsolicited requests are not accepted.
Application success factors
- Repeat giving: In its TY2024 filing, 57% 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 12 grants to organisations were $75,000 or less.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
- The largest single recipient received 43% of grant dollars to organisations.
- In tax year 2024, 57% of grant dollars went to organisations Greentree Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
- 100% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 5 grants in tax year 2024 by size
Median $75,000 (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- New York Community Trust Long Island Office · Continued support for the charities and organizations that respond to the needs of communities in nassau and suffolk counties.$200,0002024 tax year
- Manhasset Community Fund · Continued support for the charities and organizations that benefit the communities of the town of north hempstead.$200,0002024 tax year
- Fidelity Investments Charitable Gift Fund · Establishment of a donor advised fund$75,0002024 tax year
- Bank Street College of Education · General support$2,5002024 tax year
- Manhasset-Lakeville Fire Department · Providing fire protection to community.$2,5002024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Raymond Mcguire — Trustee
- Kofi Appenteng — Trustee
- Laura E Butzel Esq — Secretary
- Kate R Whitney — Vice President & Trustee
- Nicholas Gabriel — President & Treasurer
- Nancy Douzinas — Trustee
- Lincoln Chen — Trustee
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $10,755,820 | $450,000 | $297,959,921 | Filing for 2022 tax year |
| 2023 tax year | $10,652,881 | $451,500 | $321,204,959 | Filing for 2023 tax year |
| 2024 tax year | $10,958,395 | $480,000 | $334,765,569 | 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
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At a glance

Applying to Greentree Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- ekang@adelphi.edu
- Manhasset, NY
- gtftew.org

Applying to Greentree Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- ekang@adelphi.edu
- Manhasset, NY
- gtftew.org