George Henry Mayr Foundation
Historical FunderSaint Louis, Missouri · EIN 95-6062009 · Private foundation
Half of its grants to organizations were between $30,000 and $50,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | CATHERINE OLSON |
|---|---|
| Address | 600 MAGNOLIA DRIVE, SAN GABRIEL CA 91775 |
| Phone | 6269439596 |
| Form and materials | PLEASE PROVIDE A SIGNED AND DATED APPLICATION THAT INCULDES THE FOLLOWING INFORMATION: SCHOOL DEMOGRAPHIC, STUDENT DEMOGRAPHIC, TUTION ASSISTANCE PROGRAM, FINANCIALS |
| Deadlines | OCTOBER 1ST |
| Restrictions | GRANTS TO CA SCHOOLS FOR SCHOLARSHIPS TO INDEPENDENT SCHOOLS ONLY IN CA |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
93% of grants went outside Missouri.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| St Francis Hs of LA Canada Flintridge | LA Canada, CA | General operating | $100,000 |
| Romana Convent Secondary School | Alhambra, CA | General operating | $70,000 |
| Cathedral High School | Los Angeles, CA | General operating | $70,000 |
| Verbum Dei Jesuit High School | Los Angeles, CA | General operating | $60,000 |
| Bishop Montgomery High School | Torrance, CA | General operating | $60,000 |
| Bishop Amat Memorial High School | LA Puente, CA | General operating | $60,000 |
| Flintridge Sacred Heart Academy | LA Canada Flintridge, CA | General operating | $50,000 |
| Sacred Heart High School | Los Angeles, CA | General operating | $50,000 |
| Loyola Marymount University | Los Angeles, CA | General operating | $50,000 |
| Junipero Serra High School a Corp | Gardena, CA | General operating | $50,000 |
| Don Bosco Technical Institute | Rosemead, CA | General operating | $50,000 |
| Saint Marys Academy | Inglewood, CA | Scholarships | $50,000 |
| Notre Dame Academy | Los Angeles, CA | General operating | $45,000 |
| Holy Child Jesus | Chicago, IL | General operating | $40,000 |
| Chaminade College Preparatory | Saint Louis, MO | General operating | $40,000 |
| Santa Clara College | Saint Louis, MO | General operating | $40,000 |
| Pomona Catholic High School | Pomona, CA | Scholarships | $40,000 |
| St Anthony High School | Long Beach, CA | Scholarships | $40,000 |
| Bishop Alemany High School | Mission Hills, CA | General operating | $40,000 |
| San Gabriel Mission High School | San Gabriel, CA | Scholarships | $40,000 |
| Servite High School | Anaheim, CA | Scholarships | $30,000 |
| St Marys High School | Lancaster, NY | Scholarships | $30,000 |
| Mount Saint Marys University | Emmitsburg, MD | General operating | $30,000 |
| Immaculate Conception Academy | San Francisco, CA | General operating | $30,000 |
| Immaculate Heart High School | Hollywood, CA | General operating | $30,000 |
| Damien High Schools a Corp | LA Verne, CA | General operating | $30,000 |
| Marianne Frostig Center of Education | Pasadena, CA | Scholarships | $30,000 |
| Maranatha High School | Pasadena, CA | Scholarships | $30,000 |
| Hillside School and Learning Center | LA Canada, CA | General operating | $30,000 |
| University of the Pacific | Stockton, CA | General operating | $25,000 |
| Notre Dame High School of Sherman Oaks | Sherman Oaks, CA | General operating | $25,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $1,365,000 | 31 |
| 2024 | $1,360,000 | 33 |
| 2023 | $1,390,000 | 31 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 11, 2026 - IRS e-file batch, object ID 202641319349101709
- IRS Tax Exempt Organization Search for EIN 95-6062009
- 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.