Harris K & Lois G Oppenheimer Foundation

Foundation · Grantmaker SAN ANTONIO, TX EIN: 74-2347610

Harris K and Lois G Oppenheimer Foundation is a private foundation based in San Antonio, Texas. The foundation operates as a 501(c)(3) organization with no employees.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$2.6M

+3.0% YoY

Annual Giving

$163K

+4.5% YoY

Grant Count

-1.9% YoY

Avg Grant Size

$3K

+6.6% YoY

Under IRS private-foundation payout rules, Harris K & Lois G Oppenheimer Foundation reported a distributable amount of $185K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation's grant-making priorities include:

Education
Philanthropy, Voluntarism & Grantmaking
Human Services
Historic Buildings Preservation
Historic Preservation
Journalism

Grantmaking

The foundation does not currently list live grant opportunities.

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Geographic Focus

Where this funder awards grants

The foundation primarily supports organizations in Texas, New York, and Colorado.

Grant Distribution by State

Texas $558K (77%)

New York $105K (14%)

Colorado $30K (4%)

Maryland $14K (2%)

Nevada $7K (1%)

District of Columbia $6K (1%)

Virginia $3K (0%)

Missouri $2K (0%)

+3 more states

States

California Colorado Connecticut District of Columbia Massachusetts Maryland Missouri Nevada New York Texas Virginia

Cities

AlexandriaAustinBaltimoreBostonBoulderBurkeDallasFairfieldHoustonKendaliaNew YorkSan AntonioSilver SpringsSmithtownStagecoachWashingtonWest Hollywood

Financial History

Multi-year comparison from IRS filings

Total Assets: $2,630,966
Total Annual Giving: $162,550

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2025	2024	2023
Total Assets	$2,630,966	$2,553,382	$2,581,963
Revenue	$300,736	$123,188	$89,030
Expenses	$196,378	$183,269	$198,165
Qualifying Distributions	$171,582	$162,924	$178,134
Net Investment Income	$275,940	$102,843	$91,586
Distributable Amount	$184,617	$171,687	$162,920

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Grant Size Distribution

250 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2025 grants, the largest include World Monuments Fund ($20,000), Klrnalamo Public Telecommunications Council ($13,000), Texas Public Radio ($13,000).

Recipient	Purpose	Amount
ACLU FOUNDATION NEW YORK, NY	UNRESTRICTED	$500
ALZHEIMER'S ASSOCIATION OF GREATER DALLAS DALLAS, TX	UNRESTRICTED	$2,000
AMERICAN RED CROSS SAN ANTONIO, TX	UNRESTRICTED	$1,500
AMERICAN RED CROSS - CENTRAL TEXAS AUSTIN, TX	UNRESTRICTED	$1,500
ARCHIVES OF AMERICAN ART SMITHSONIAN INSTITUTION NEW YORK, NY	UNRESTRICTED	$1,000
AUSTIN PETS ALIVE AUSTIN, TX	UNRESTRICTED	$1,000
BRACKENRIDGE PARK CONSERVANCY SAN ANTONIO, TX	UNRESTRICTED	$5,000
CHILD ADVOCATES SAN ANTONIO SAN ANTONIO, TX	UNRESTRICTED	$5,000
CHILDREN'S HOSPITAL FOUNDATION SILVER SPRINGS, MO	UNRESTRICTED	$400
ELF LOUISE CHRISTMAS PROJECT SAN ANTONIO, TX	UNRESTRICTED	$2,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2025 IRS filing

From 2025 filing

Name	Title	Hours	Compensation
CLAIRE O O'MALLEY	PRESIDENT, SEC, TREASURER	—	—
PAULINE WEISBERG	VICE PRESIDENT	—	—
ALEXANDER HARRIS WEISBERG	TRUSTEE	—	—
EDWARD J O'MALLEY	TRUSTEE	—	—
DANIEL H O'MALLEY	TRUSTEE	—	—

Frequently Asked Questions

What does Harris K & Lois G Oppenheimer Foundation fund?

The foundation's grant-making priorities include: • Education • Philanthropy, Voluntarism & Grantmaking • Human Services • Historic Buildings Preservation • Historic Preservation • Journalism

How do I apply for a grant from Harris K & Lois G Oppenheimer Foundation?

**Grant Amounts:** Typical awards range from $100 to $20,000. **Annual Giving:** The foundation distributed $162,550 in total grants according to the most recent filing. The foundation does not currently list live grant opportunities.

Where does Harris K & Lois G Oppenheimer Foundation make grants?

The foundation primarily supports organizations in Texas, New York, and Colorado.

What size grants does Harris K & Lois G Oppenheimer Foundation award?

In 2025, Harris K & Lois G Oppenheimer Foundation awarded 51 grants totaling $163K — an average of about $3K per grant, based on its IRS Form 990 filings.

How much is Harris K & Lois G Oppenheimer Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2025, Harris K & Lois G Oppenheimer Foundation reported a distributable amount of $185K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Harris K & Lois G Oppenheimer Foundation's EIN?

Harris K & Lois G Oppenheimer Foundation's EIN (Employer Identification Number) is 74-2347610. IRS Form 990 filing data is available on this page for 2021–2025.