Mayr George H - Main
Mayr George H - Main is a private foundation based in Saint Louis, Missouri. Its 2025 filing reports grants to schools and other educational institutions, including support for general operating costs and scholarships.
Mayr George H - Main at a glance
In short: Mayr George H - Main gave $1.4M across 31 grants in 2025 (avg $44K), mostly in California. 4% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $1,365,000
- +0.4% vs 2024
- Grants made (2025)
- 31
- -6.1% vs 2024
- Average grant
- $44,032
- +6.8% vs 2024
- Median grant
- $40,000
- Total assets
- $27,438,495
- +9.4% vs 2024
- New grantees (estimate)
- 4% first-time grantees (1 of 27, 2025)
- Primary geography
- California (87% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Mayr George H - Main
- How to Apply
-
The filing says the foundation does not restrict giving to preselected organizations. Applicants should contact Catherine Olson and provide a signed, dated application with school demographics, student demographics, information about the tuition assistance program, and financials. Grants to California schools for scholarships are restricted to independent schools in California.
- Review Cycle
- October 1.
- Deadline
- October 1.
- Contact
Application contact: Catherine Olson
Mailing address: 600 Magnolia Drive, San Gabriel, CA 91775
Phone: (626) 943-9596
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Mayr George H - Main funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was St Francis HS of La Canada Flintridge ($100K). Together the top 10 received $620K.
Organizations only. It also paid 4 individual scholarships ($150,000), which are not listed by name.
Grant Size Distribution
156 grants across all recorded years
The most common grant size was under $50K: 106 grants of 156 (68%).
Geographic Focus
Where this funder awards grants
The foundation is based in Missouri, while its 2025 grant dollars went primarily to California recipients: California received 87%, Missouri 6%, Illinois 3%, New York 2%, and Maryland 2%.
Grant Distribution by State
Share of 2025 grant dollars across all 31 itemized grants.
Cities
Is Mayr George H - Main open to new grantees?
4%
first-time grantees, 2025
In 2025, 1 of 27 grantees (4%) were first-time recipients. First grants averaged $100K; repeat grants $43K. How we count
Medians: $100K first-time, $40K repeat.
- 93% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−8%). Method
- In 2025 it paid out 97% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $1.0M (2020) to $1.5M (2022). In 2025 it made 31 grants totaling $1.4M.
Grants by year
Grant recipients and amounts by year
| Recipient | 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 |
Ready to take the next step with Mayr George H - Main?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $27,438,495 | $4,132,344 | $1,783,697 | $1,365,000 | 31 | $1,548,100 | $3,935,104 | $1,589,784 |
| 2024 | $25,083,066 | $1,298,351 | $1,723,145 | $1,360,000 | 33 | $1,541,858 | $1,126,671 | $1,546,383 |
| 2023 | $25,511,706 | $1,399,075 | $1,754,215 | $1,390,000 | 31 | $1,569,951 | $1,238,289 | $1,654,707 |
| 2022 | $25,598,248 | $877,632 | $1,820,736 | $1,480,000 | 32 | $1,657,349 | $719,538 | $1,456,076 |
| 2021 | $26,534,481 | $3,555,196 | $1,588,803 | $1,200,000 | 29 | $1,381,599 | $3,387,715 | $1,612,272 |
| 2020 | $24,550,067 | $2,925,908 | $1,394,198 | $1,030,000 | 32 | — | $2,763,422 | $1,383,986 |
Under IRS private-foundation payout rules, Mayr George H - Main reported a distributable amount of $1.6M for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grants include general operating support for schools and a scholarship grant to Saint Marys Academy. The filing states that grants to California schools for scholarships are for independent schools in California only.
The organizations it supports describe a range of educational work. Hillside School and Learning Center says it focuses on students with learning disabilities through an interactive, participatory learning experience. An individual recipient Technical Institute describes itself as a Catholic high school combining college-preparatory academics and technology. An individual recipient Mary’s University describes its work as educating ethical leaders, while Maranatha High School describes itself as a Christian college-preparatory school.
Grantmaking
In 2025, the foundation reported 31 grants totaling $1,365,000. Grant amounts ranged from $25,000 to $100,000, with a median of $40,000. The largest grants included $100,000 to an individual recipient HS of La Canada Flintridge for general operating support; $70,000 each to Romana Convent Secondary School and Cathedral High School for general operating support; and $60,000 each to an individual recipient Jesuit High School, an individual recipient High School, and Bishop Amat Memorial High School for general operating support.
In 2024, the foundation reported 33 grants totaling $1,360,000. Among the recipients described in the available grant information were Hillside School and Learning Center ($45,000), an individual recipient Technical Institute ($30,000), University of the Pacific ($25,000), an individual recipient Mary’s University ($20,000), and Maranatha High School ($20,000). Its 2025 filing, the latest on this page, reports 31 grants totaling $1.4 million.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Natalie O’Connor and Catherine Grier Olson as directors, Patrick Haden as board advisor, and Wells Fargo Bank N.A. as trustee.
Mayr George H - Main's 2025 filing lists 4 officers; 3 of 4 officers listed in 2025 are compensated.
Officers on the 2025 filing
Catherine Grier Olson
Director
On filings since 2020
14 hrs/week
$65K (2020) → $64K (2025)
Natalie O'Connor
Director
On filings since 2020
14 hrs/week
$68K (2020) → $68K (2025)
Wells Fargo Bank N A
Trustee
On filings since 2020
1 hr/week
$169K (2020) → $187K (2025)
Patrick Haden
Board Advisor
On filings since 2020
4 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $187K, to Wells Fargo Bank N a (Trustee). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Mayr George H - Main
How much does Mayr George H - Main give each year?
Mayr George H - Main gave $1.4M across 31 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.4M across 33 grants.
What is Mayr George H - Main's typical grant size?
Mayr George H - Main's median grant in 2025 was $40,000, and its average grant was $44,032, across 31 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Mayr George H - Main that year got $100K on average.
Where does Mayr George H - Main give grants?
Mayr George H - Main gives mostly in California: 87% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Missouri (6%). The most frequent recipient cities were Los Angeles, CA (5 grants), La Canada, CA (2 grants), Saint Louis, MO (2 grants) and Pasadena, CA (2 grants).
Does Mayr George H - Main give general operating support?
Yes: 74% of Mayr George H - Main's 2025 grants with a stated purpose (23 of 31) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Scholarships" (8 grants).
Who are Mayr George H - Main's largest grantees?
Mayr George H - Main's largest 2025 grantees include St Francis HS of La Canada Flintridge ($100,000), Romana Convent Secondary School ($70,000) and Cathedral High School ($70,000), according to its 2025 IRS Form 990-PF. It also paid 4 individual scholarships ($150,000), which are not listed by name. Together they received 18% of its itemized 2025 grant dollars.
How large is Mayr George H - Main?
Mayr George H - Main reported $27.4M in total assets on its 2025 IRS Form 990-PF. It paid out $1.5M in qualifying distributions that year, against a required minimum of $1.6M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does Mayr George H - Main fund?
No mission statement for the foundation is provided. Its 2025 grants include general operating support for schools and a scholarship grant to Saint Marys Academy. The filing states that grants to California schools for scholarships are for independent schools in California only. See mission & focus areas ↑
How do I apply for a grant from Mayr George H - Main?
The filing says the foundation does not restrict giving to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Mayr George H - Main's EIN?
Mayr George H - Main's EIN (Employer Identification Number) is 95-6062009. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 11, 2026)
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Mayr George H - Main funder profile. GrantGraph. Retrieved October 14, 2026, from https://grantable.co/funders/mayr-george-h-main-morg_77a717f6429c4d9aaa37f4523667ff61
BibTeX
@misc{grantable_956062009_2026,
author = {{Grantable}},
title = {{Mayr George H - Main funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/mayr-george-h-main-morg_77a717f6429c4d9aaa37f4523667ff61},
note = {Accessed 2026-10-14. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Mayr George H - Main's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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