The Michael and Sally Mayer Family Foundation
Invitation OnlyHillsborough, California · EIN 20-3874924 · Private foundation
Grants paid (2025)$91K
Organizations funded16
Typical grant$5,000
Total assets$1.8M
Half of its grants to organizations were between $1,000 and $7,500.
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
25% of grants went outside California.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| San Mateo Service League Hope House | Redwood City, CA | General operating expenses | $17,029 |
| Rose City Park School | Portland, OR | General operating expenses | $16,000 |
| First Presbyterian Church of Burlingame | Burlingame, CA | General operating expenses | $11,590 |
| Heart for Humanity | Novato, CA | General operating expenses | $10,000 |
| Family Connections | Menlo Park, CA | General operating expenses | $7,500 |
| Los Lomitas Education Foundation | Menlo Park, CA | General operating expenses | $6,000 |
| Abilitypath | Redwood City, CA | General operating expenses | $5,000 |
| San Mateo Pal | San Mateo, CA | General operating expenses | $5,000 |
| Sf SPCA | San Francisco, CA | General operating expenses | $5,000 |
| Jewish Legacy | Oak Park, MI | General operating expenses | $2,500 |
| Lymelight | Burlingame, CA | General operating expenses | $2,500 |
| Archbishop Riordan High School | San Francisco, CA | General operating expenses | $1,000 |
| Hillsdale College | Hillsdale, MI | General operating expenses | $1,000 |
| Fioli | Woodside, CA | General operating expenses | $250 |
| San Mateo Fellowship | San Mateo, NY | General operating expenses | $206 |
| The Five Buckets Four Shovels Foundation | San Francisco, CA | General operating expenses | $25 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $90,600 | 16 |
| 2024 | $72,710 | 13 |
| 2023 | $57,423 | 13 |
Sources
- IRS Form 990-PF, tax year 2025, filed Aug 21, 2026 - IRS e-file batch, object ID 202612339349100756
- IRS Tax Exempt Organization Search for EIN 20-3874924
- 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.