Mastwood Charitable Foundation
Private foundation · Boston, MA · EIN 04-3530135 · reported 2023–2025
51grants reported
$1,000median award
$500lower quartile
$250smallest grant
$48Ktotal paid
9states reached
3years giving
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
PO Box 55806
Boston, MA 02205-5806
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
This address is a trust department, not an office. 42 other foundations file from the same address, which means a bank or a management company administers the trust. Put the full legal name of the fund and its EIN at the top of the letter, or it lands in a pile with thousands of others and nobody knows which fund you are writing about.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Avaloch Farm Music Institute | Boscawen, NH | $4,000 |
| Trustees of the Reservation | Boston, MA | $2,000 |
| Essex County Greenbelt | Essex, MA | $2,000 |
| Aashnational Office | Chicago, IL | $2,000 |
| Signet Associates | Cambridge, MA | $2,000 |
| Trustees of the Reservation | Boston, MA | $2,000 |
| Essex County Greenbelt | Essex, MA | $2,000 |
| American Academy in Rome | New York, NY | $1,000 |
| Boston Early Musical Festival | Cambridge, MA | $1,000 |
| Trustees of the Reservation | Boston, MA | $1,000 |
| Blue Heron Renaissance Choir | West Newton, MA | $1,000 |
| Essex County Greenbelt | Essex, MA | $1,000 |
| Aashnational Office | Chicago, IL | $1,000 |
| Signet Associates | Cambridge, MA | $1,000 |
| Ipswich River Watershed Assoc | Ipswich, MA | $1,000 |
| Appollo's Fire | Cleveland Heights, OH | $1,000 |
| American Academy in Rome | New York, NY | $1,000 |
| Blue Heron Renaissance Choir | West Newton, MA | $1,000 |
| Accord Food Pantry | South Hamilton, MA | $1,000 |
| San Francisco Friends School | San Francisco, CA | $1,000 |
| The Open Door | Gloucester, MA | $1,000 |
| American Academy in Rome | New York, NY | $1,000 |
| Boston Early Musical Festival | Cambridge, MA | $1,000 |
| Early Music America | Pittsburgh, PA | $1,000 |
| Blue Heron Renaissance Choir | West Newton, MA | $1,000 |
| Aashnational Office | Chicago, IL | $1,000 |
| Signet Associates | Cambridge, MA | $1,000 |
| Ipswich River Watershed Assoc | Ipswich, MA | $1,000 |
| Appollo's Fire | Cleveland Heights, OH | $1,000 |
| San Francisco Friends School | San Francisco, CA | $1,000 |
| Ipswich River Watershed Assoc | Ipswich, MA | $750 |
| Early Music America | Pittsburgh, PA | $500 |
| Kieve-Wavus Education | Nobleboro, ME | $500 |
| San Francisco Friends School | San Francisco, CA | $500 |
| Groton School | Groton, MA | $500 |
| University of North Carolina | Chapel Hill, NC | $500 |
| American Academy of Arts and Sciences | Cambridge, MA | $500 |
| Early Music America | Pittsburgh, PA | $500 |
| Kieve-Wavus Education | Nobleboro, ME | $500 |
| Appollo's Fire | Cleveland Heights, OH | $500 |
| Accord Food Pantry | South Hamilton, MA | $500 |
| Kieve-Wavus Education | Nobleboro, ME | $500 |
| Groton School | Groton, MA | $500 |
| University of North Carolina | Chapel Hill, NC | $500 |
| American Academy of Arts and Sciences | Cambridge, MA | $500 |
| Ipswich Local News | New York, NY | $500 |
| Essex Shipbuilding Museum | Essex, MA | $250 |
| Medieval Academy of America | Boston, MA | $250 |
| Ipswich Local News | New York, NY | $250 |
| Essex Shipbuilding Museum | Essex, MA | $250 |
| Medieval Academy of America | Boston, MA | $250 |
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