The Mountz Family Foundation
Invitation OnlyNeedham, Massachusetts · EIN 46-1547058 · Private foundation
Grants paid (2025)$362K
Organizations funded9
Typical grant$12,500
Total assets$1.3M
Half of its grants to organizations were between $2,500 and $22,200.
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
22% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| MIT | Cambridge, MA | General | $280,000 |
| Deerfield Academy | Deerfield, MA | General | $25,000 |
| Boston Children's Hospital | Boston, MA | General | $22,200 |
| Carroll School | Lincoln, MA | General | $12,500 |
| The Fenn School | Concord, MA | General | $12,500 |
| National Inventors Hall of Fame | North Canton, OH | General | $5,000 |
| The Umbrella Arts Center | Concord, MA | General | $2,500 |
| Khan Academy | Mountain View, CA | General | $1,000 |
| Pan Mass Challenge | Needham, MA | General | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $361,700 | 9 |
| 2024 | $359,700 | 10 |
| 2023 | $236,000 | 8 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 18, 2026 - IRS e-file batch, object ID 202631389349100213
- IRS Tax Exempt Organization Search for EIN 46-1547058
- 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.