Mastwood Charitable Foundation
Invitation OnlyBoston, Massachusetts · EIN 04-3530135 · Private foundation
Grants paid (2025)$17K
Organizations funded19
Typical grant$1,000
Total assets$336K
Half of its grants to organizations were between $500 and $1,000.
From the return
How to apply
On its return for tax year 2025 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
47% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Avaloch Farm Music Institute | Boscawen, NH | General purposes | $4,000 |
| American Academy in Rome | New York, NY | General purposes | $1,000 |
| Boston Early Musical Festival | Cambridge, MA | General purposes | $1,000 |
| Trustees of the Reservation | Boston, MA | General purposes | $1,000 |
| Blue Heron Renaissance Choir | West Newton, MA | General purposes | $1,000 |
| Essex County Greenbelt | Essex, MA | General purposes | $1,000 |
| Aashnational Office | Chicago, IL | General purposes | $1,000 |
| Signet Associates | Cambridge, MA | General purposes | $1,000 |
| Ipswich River Watershed Assoc | Ipswich, MA | General purposes | $1,000 |
| Appollo's Fire | Cleveland Heights, OH | General purposes | $1,000 |
| Early Music America | Pittsburgh, PA | General purposes | $500 |
| Kieve-Wavus Education | Nobleboro, ME | General purposes | $500 |
| San Francisco Friends School | San Francisco, CA | General purposes | $500 |
| Groton School | Groton, MA | General purposes | $500 |
| University of North Carolina | Chapel Hill, NC | General purposes | $500 |
| American Academy of Arts and Sciences | Cambridge, MA | General purposes | $500 |
| Essex Shipbuilding Museum | Essex, MA | General purposes | $250 |
| Medieval Academy of America | Boston, MA | General purposes | $250 |
| Ipswich Local News | New York, NY | General purposes | $250 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $16,750 | 19 |
| 2024 | $16,500 | 19 |
| 2023 | $15,250 | 13 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 27, 2026 - IRS e-file batch, object ID 202631179349101113
- IRS Tax Exempt Organization Search for EIN 04-3530135
- 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.