Mayfield Foundation Inc

HOUSTON, TX EIN: 76-0495695

Mayfield Foundation Inc is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in HOUSTON, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.0M in total assets. In 2024, it awarded 14 grants totaling $209K. Net investment income was $205K.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$2.0M

+0.6% YoY

Annual Giving

$209K

+90.0% YoY

Grant Count

14

+27.3% YoY

Avg Grant Size

$15K

+49.3% YoY

About Mayfield Foundation Inc

Based on IRS filings

Mayfield Foundation Inc is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in HOUSTON, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.0M in total assets. In 2024, it awarded 14 grants totaling $209K. Net investment income was $205K.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

5states

Cities

AustinHousonHoustonIrvineNavasotaPolsonRedmondRonanWashington

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$68K$137K$205K$274K20202021202220232024
Metric202420232022
Total Assets$1,982,081$1,970,398$2,181,271
Revenue$249,033$-59,244$-92,138
Expenses$245,514$142,726$155,146
Qualifying Distributions$211,976$110,000$155,146
Net Investment Income$205,475$30,633$12,577
Distributable Amount$104,838$110,059$88,202

Giving Over Time

Total grant dollars and number of grants per year

$0$52K$105K$157K$209K9 grants202010 grants202111 grants202211 grants202314 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

ST MARTIN'S$100KUT HEALTH$32KCHURCH OF THE HOLY CROSS$13KOVERLAKE SCHOOL$12KTHE KINKAID SCHOOL$10KGREATER POLSON COMMUNITY…$8KCAMP ALLEN$5KFLATHEAD LAKERS$5KTHE WESTVIW SCHOOL$5KTHE SILVERADO FOUNDATION$5K

Grant Size Distribution

55 grants across all recorded years

51<$50K3$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
WALTER G MAYFIELDPRESIDENT0.1
JACK H MAYFIELD IIIEXECUTIVE VP0.1
LYDIA MAYFIELD ABBOTTTREASURER1

Subject Areas

Focus areas based on grantmaking activity

Related Funders

Similar funders by location and focus area

Data last updated April 2026. Sourced from IRS Form 990-PF filings.

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