Mackesy Family Foundation
Invitation OnlyBronxville, New York · EIN 47-2587937 · Private foundation
Grants paid (2024)$2.9M
Organizations funded18
Typical grant$25,000
Total assets$29.4M
Half of its grants to organizations were between $10,000 and $125,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
55% of grants went outside New York.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| William & Mary Foundation | Williamsburg, VA | General support | $1,343,000 |
| Graham Windham | Brooklyn, NY | General support | $633,000 |
| US Squash | Philadelphia, PA | General support | $250,000 |
| Princeton University | Princeton, NJ | General support | $170,000 |
| The Rockefeller University | New York, NY | General support | $125,000 |
| Impact Through Golf Foundation | LA Quinta, CA | General support | $90,000 |
| Discovery Land Company Foundation | Beverly Hills, CA | General support | $60,000 |
| Lead Africa | New York, NY | General support | $50,000 |
| Robin Hood Foundation | New York, NY | General support | $50,000 |
| Mainsprings | Tulsa, OK | General support | $25,000 |
| Grassroot Soccer | Hanover, NH | General support | $21,250 |
| American Foundation for Suicide Prevention | New York, NY | General support | $10,000 |
| Destination College | Bronxville, NY | General support | $10,000 |
| Lake Waramaug Task Force | Warren, CT | General support | $10,000 |
| Breakthrough T1d | New York, NY | General support | $5,000 |
| Squash and Education Alliance | New York, NY | General support | $5,000 |
| Goodwill Industries International Inc | Rockville, MD | General support | $2,500 |
| Black Players for Change | Chicago, IL | General support | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $2,860,750 | 18 |
| 2023 | $3,517,321 | 18 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 14, 2025 - IRS e-file batch, object ID 202533189349105103
- IRS Tax Exempt Organization Search for EIN 47-2587937
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.