Mathieson Family Foundation
Invitation OnlyPittsburgh, Pennsylvania · EIN 20-2502389 · Private foundation
Grants paid (2025)$69K
Organizations funded17
Typical grant$3,000
Total assets$1.7M
Half of its grants to organizations were between $2,650 and $5,000.
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
82% of grants went outside Pennsylvania.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Telluride | Telluride, CO | General support | $10,000 |
| The Savoy Company Endowment | Norristown, PA | General support | $7,150 |
| Stenton | Philadelphia, PA | General support | $5,150 |
| Big Sky Youth Empowerment | Bozeman, MT | General support | $5,000 |
| Deerwood Foundation | Cornwall, CT | Forever squam / anual support | $5,000 |
| The Arts Council of Big Sky | Big Sky, MT | General support | $5,000 |
| Radical Grandma Collective | Eugene, OR | General support | $5,000 |
| Sweetwater Spectrum | Sonoma, CA | General support | $3,000 |
| Museum of the Rockies | Bozeman, MT | General support | $3,000 |
| Bucknell University | Lewisburg, PA | Aw & ar mathieson scholarship | $2,750 |
| Connecticut College | New London, CT | Scholarship fund | $2,650 |
| Squam Lakes Association | Holderness, NH | General support | $2,650 |
| Squam Lakes Natural Science Center | Holderness, NH | General support | $2,650 |
| Friends of Holderness Library | Holderness, NH | General support | $2,500 |
| Gallatin River Task Force | Big Sky, MT | General support | $2,500 |
| Squam Lakes Conservation Society | Holderness, NH | General support | $2,500 |
| Yellow Dog Community & Conservation Foundation | Bozeman, MT | General support | $2,500 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $69,000 | 17 |
| 2024 | $66,000 | 19 |
| 2023 | $68,000 | 20 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jul 15, 2026 - IRS e-file batch, object ID 202621969349100007
- IRS Tax Exempt Organization Search for EIN 20-2502389
- Profile updated Nov 5, 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.