Mayfield Foundation Inc
Mayfield Foundation Inc is a private foundation based in Houston, Texas. Its 2025 filing lists grants to charitable organizations, including schools, a camp, a health institution, a church, and community organizations.
Mayfield Foundation Inc at a glance
In short: Mayfield Foundation Inc gave $125K across 14 grants in 2025 (avg $9K), mostly in Texas. 14% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $124,500
- -40.4% vs 2024
- Grants made (2025)
- 14
- +0.0% vs 2024
- Average grant
- $8,893
- -40.4% vs 2024
- Median grant
- $5,000
- Total assets
- $1,962,973
- -1.0% vs 2024
- New grantees (estimate)
- 14% first-time grantees (2 of 14, 2025; small sample)
- Primary geography
- Texas (83% 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 Mayfield Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.
- Contact
Mailing address: PO Box 570365, Houston, TX 77257-0365
Phone: (713) 355-3408
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Mayfield Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was The Kinkaid School ($20K). Together the top 10 received $116K.
Grant Size Distribution
60 grants across all recorded years
The most common grant size was under $50K: 57 grants of 60 (95%).
Geographic Focus
Where this funder awards grants
In 2025, 83% of grant dollars went to recipients in Texas and 17% to recipients in Montana.
Grant Distribution by State
Share of 2025 grant dollars across all 14 itemized grants.
Cities
Is Mayfield Foundation Inc open to new grantees?
14%
first-time grantees, 2025
In 2025, 2 of 14 grantees (14%) were first-time recipients. With only 14 grantees, that is a small sample: one grantee more or less moves the share by about 7 points. First grants averaged $3K; repeat grants $10K. How we count
Medians: $3K first-time, $9K repeat.
- 86% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+3%). Method
- In 2025 it paid out 106% of its IRS minimum distribution (the 5% rule). 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 $110K (2023) to $209K (2024). In 2025 it made 14 grants totaling $125K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Kinkaid School Houston, TX | General Support | $20,000 |
| The Westviw School Houston, TX | General Support | $20,000 |
| Camp Allen Navasota, TX | General Support | $15,000 |
| UT Health Austin, TX | General Support | $15,000 |
| Church of the Holy Cross Houston, TX | General Support | $14,000 |
| St Martin's Houston, TX | General Support | $12,000 |
| Boys & Girls Club of the Flathead Reservation & Lake CO Ronan, MT | General Support | $5,000 |
| Flathead Lakers Polson, MT | General Support | $5,000 |
| Greater Polson Community Foundation Polson, MT | General Support | $5,000 |
| Hope and Healing Center & Institute Houston, TX | General Support | $5,000 |
Ready to take the next step with Mayfield Foundation Inc?
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 | $1,962,973 | $158,824 | $177,932 | $124,500 | 14 | $129,750 | $136,003 | $122,032 |
| 2024 | $1,982,081 | $249,033 | $245,514 | $209,000 | 14 | $211,976 | $205,475 | $104,838 |
| 2023 | $1,970,398 | $-59,244 | $142,726 | $110,000 | 11 | $110,000 | $30,633 | $110,059 |
| 2022 | $2,181,271 | $-92,138 | $155,146 | $121,000 | 11 | $155,146 | $12,577 | $88,202 |
| 2021 | $2,431,000 | $65,502 | $146,516 | $113,000 | 10 | $113,000 | $35,505 | $132,058 |
| 2020 | $2,467,964 | $-185,453 | $197,804 | $170,000 | 9 | — | $28,072 | $108,155 |
Under IRS private-foundation payout rules, Mayfield Foundation Inc reported a distributable amount of $122K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Grantmaking
In filing year 2025, the foundation gave $124,500 through 14 grants. Grant amounts ranged from $1,000 to $20,000, with a median grant of $5,000. The largest grants included $20,000 each to THE KINKAID SCHOOL and THE WESTVIW SCHOOL, both in Houston; $15,000 each to CAMP ALLEN in Navasota and UT HEALTH in Austin; and $14,000 to CHURCH OF THE HOLY CROSS in Houston. HOPE AND HEALING CENTER & INSTITUTE in Houston received $5,000. The center describes its mission as creating accessible and affordable options for mental health care within accepting communities.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists WALTER G MAYFIELD as president, JACK H MAYFIELD III as executive vice president, and LYDIA MAYFIELD ABBOTT as treasurer.
Mayfield Foundation Inc is led by Walter G. Mayfield, President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Walter G. Mayfield
President
On filings since 2020
0.1 hrs/week
No compensation reported
Jack H. Mayfield III
Executive Vice President
On filings since 2024
0.1 hrs/week
No compensation reported
Lydia Mayfield Abbott
Treasurer
On filings since 2024
1 hr/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.
Frequently asked questions about Mayfield Foundation Inc
How much does Mayfield Foundation Inc give each year?
Mayfield Foundation Inc gave $125K across 14 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $209K across 14 grants.
What is Mayfield Foundation Inc's typical grant size?
Mayfield Foundation Inc's median grant in 2025 was $5,000, and its average grant was $8,893, across 14 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Mayfield Foundation Inc that year got $3K on average.
Where does Mayfield Foundation Inc give grants?
Mayfield Foundation Inc gives mostly in Texas: 83% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Montana (17%). The most frequent recipient cities were Houston, TX (6 grants) and Polson, MT (4 grants).
Does Mayfield Foundation Inc give general operating support?
Yes: 100% of Mayfield Foundation Inc's 2025 grants with a stated purpose (14 of 14) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Mayfield Foundation Inc's largest grantees?
Mayfield Foundation Inc's largest 2025 grantees include The Kinkaid School ($20,000), The Westviw School ($20,000) and Camp Allen ($15,000), according to its 2025 IRS Form 990-PF. Together they received 44% of its itemized 2025 grant dollars.
How large is Mayfield Foundation Inc?
Mayfield Foundation Inc reported $2.0M in total assets on its 2025 IRS Form 990-PF. It paid out $130K in qualifying distributions that year, against a required minimum of $122K (roughly 5% of its investment assets).
How do I apply for a grant from Mayfield Foundation Inc?
The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Mayfield Foundation Inc's EIN?
Mayfield Foundation Inc's EIN (Employer Identification Number) is 76-0495695. IRS Form 990 filing data is available on this page for 2020–2025.
Does Mayfield Foundation Inc accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
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 28, 2026)
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Mayfield Foundation Inc funder profile. GrantGraph. Retrieved October 14, 2026, from https://grantable.co/funders/mayfield-foundation-inc-morg_38034338ecea454eb326b96ed98a0651
BibTeX
@misc{grantable_760495695_2026,
author = {{Grantable}},
title = {{Mayfield Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/mayfield-foundation-inc-morg_38034338ecea454eb326b96ed98a0651},
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 Mayfield Foundation Inc'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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