Martha P Mack Foundation
Invitation OnlyDetroit, Michigan · EIN 30-6702159 · Private foundation
Grants paid (2024)$1.8M
Organizations funded9
Typical grant$100,000
Total assets$22.5M
Half of its grants to organizations were between $50,000 and $405,000.
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
100% of grants went outside Michigan.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Sanford Burnham Prebys Medical Discovery Institute | LA Jolla, CA | For support of daily | $500,000 |
| Scripps Health Foundation | LA Jolla, CA | For support of daily | $500,000 |
| UC San Diego Foundation | LA Jolla, CA | For support of daily | $405,000 |
| The Scripps Research Institute | LA Jolla, CA | For support of daily | $100,000 |
| Salk Institute for Biological Studies | LA Jolla, CA | For support of daily | $100,000 |
| Sharp Healthcare Foundation | San Diego, CA | For support of daily | $100,000 |
| The Salvation Army | Rancho Palos Verdes, CA | For support of daily | $50,000 |
| Southern Methodist University | Dallas, TX | For support of daily | $25,000 |
| LA Jolla Institute of Immunology | LA Jolla, CA | For support of daily | $5,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $1,785,000 | 9 |
| 2023 | $1,150,000 | 4 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 3, 2025 - IRS e-file batch, object ID 202533079349101858
- IRS Tax Exempt Organization Search for EIN 30-6702159
- 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.