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Harris K & Lois G Oppenheimer Foundation at a glance

· Private foundation

Harris K & Lois G Oppenheimer Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$163k
Granted FY2025still arriving
51
Grants FY2025still arriving
10
States reached
$20k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$486kHealth$222kHuman Services$153kAnimals$116kPhilanthropy$80kEnvironment$63kEducation$52kPublic Safety & Disaster$43kOther$0
02FY2025 · 51 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k48 grants · $117k
  • $10k–50k3 grants · $46k
$2,000
Median grant
10
States reached
$2.6M
Total assets
Largest grants
RecipientAmount
WORLD MONUMENTS FUND$20,000
KLRNALAMO PUBLIC TELECOMMUNICATIONS COUNCIL$13,000
TEXAS PUBLIC RADIO$13,000
HILLSIDE SCHOOL$9,500
TEXAS BIOMEDICAL RESEARCH FOUNDATION$5,000
WITTE MUSEUM$5,000
CHILD ADVOCATES SAN ANTONIO$5,000
SAN ANTONIO ZOOLOGICAL SOCIETY$5,000
UT HEALTH$5,000
SAN ANTONIO MUSEUM OF ART$5,000
BRACKENRIDGE PARK CONSERVANCY$5,000
HOUSTON GRAND OPERA$5,000
UT HEALTH CANCER CENTER$5,000
MCNAY MUSEUM OF ART$5,000
NATIONAL PARK FOUNDATION$4,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY17–25, $129k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 93% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%AMERICAN RED CROSS - CENTRAL TEXAS: $2k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $2k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%AMERICAN RED CROSS - CENTRAL TEXAS: $1k → 10%CHILDREN'S SHELTER: $4k → 16%CHILDREN'S SHELTER: $4k → 16%CHILDREN'S SHELTER: $4k → 16%CHILDREN'S SHELTER: $4k → 16%CHILDREN'S SHELTER: $4k → 16%FAMILY SERVICE ASSOCIATION: $25k → 16%FAMILY SERVICE ASSOCIATION: $25k → 16%FAMILY SERVICE ASSOCIATION: $25k → 16%FAMILY SERVICE ASSOCIATION: $25k → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

NY
MA
NV
CT
CA
CO
MO
VA
MD
DC
TX
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

94%of every dollar goes to organizations it has funded before.
$1.3M · 70 repeat orgs$78k to everyone else

Grantees it renews have grown median revenue +46% since the first grant, against +13% for those funded once.

70 repeat relationships: 49 still active in FY2025, 21 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

70
18

Total granted

$1.3M
$75k

Median revenue growth · since first grant

+46%
+13%

Still filing today

59%
44%

New vs renewed · share of each year

In FY2025, 98% of grant dollars renewed an existing relationship; $3k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Arts & CultureCivil RightsAnimalsHealthHuman ServicesInternationalOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • WM
    WORLD MONUMENTS FUND INC
    9× · 2017–2025 · $105k · revenue +135%
  • FS
    Family Service Association of San Antonio Inc
    4× · 2017–2021 · $100k · revenue +29%
  • UW
    UNITED WAY OF SAN ANTONIO AND BEXAR COUNTY
    8× · 2017–2024 · $80k · revenue +12%

Funded once

  • FS
    FAMILY SERVICE FOUNDATION
    one grant, 2019 · $25k
  • IG
    Individual grant recipient
    one grant, 2017 · $10k
  • UNITED STATES FUND FOR UNICEF
    one grant, 2022 · $10k · revenue -21%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
2
Spca of Texas

The spca of texas is dedicated to providing every animal exceptional care and a loving home.

Animals
3
San Antonio Area Foundation

To serve as your most trusted and impactful philanthropic partner.

Philanthropy
4
San Diego Opera Association

Mission: the mission of san diego opera is to deliver exceptional performances and exciting, accessible programs to diverse audiences, focusing on community partnerships, and the transformative and expressive power of the human voice. as…

Arts & Culture
5
Santa Fe Community Foundation

The santa fe community foundation inspires philanthropic generosity, strengthens nonprofits, and fosters positive change to build a more vibrant, healthy, and resilient region. the foundation's vision is a thriving northern new mexico,…

Philanthropy
6
San Antonio Hospital Foundation Inc

To develop the resources to support san antonio regional hospital's mission to improve the health and wellbeing of the people we serve.

Health
7
San Antonio Medical Foundation

The mission of the san antonio medical foundation is to improvehealth care, advance biomedical science, and enhance communitywell-being by providing leadership & active stewardship of our landand other assets.

Health
8
United States Telecom Association

See schedule oustelecom exists to ensure members can compete, grow and thrive to build a world where families, enterprises and communities are connected through the power of broadband.our member companies have committed a considerable…

—
9
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
10
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

—
11
Zoological Society of San Diego

San diego zoo wildlife alliance is committed to saving species worldwide by uniting our expertise in wildlife care and conservation science with our dedication to inspiring passion for nature.

Animals
12
Texas Trees Foundation

The mission of texas trees foundation is to improve the health of cities and people through the transformative power of trees.

—
How this is measured
The grantee most central to the portfolio’s shape is Youth Orchestras of San Antonio; the most unlike its peers is Wild Horse Connection Corporation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

51 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 51 of the 90 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
11
Early backer (in before they grew)
50/51
Grantees still filing
41/51
Grew since first funded

Where the money sits, by cause and then by grantee

MCNAY MUSEUM OF ART: $47,000 · OtherMCNAY MUSEUM OF ARTTEXAS BIOMEDICAL RESEARCH FOUNDATION: $46,000 · OtherTEXAS BIOMEDICAL RESEARCH FOUNDATIONUT HEALTH CANCER CENTER: $45,000 · OtherUT HEALTH CANCER CENTERUT HEALTH: $35,000 · OtherHILLSIDE SCHOOL: $26,500 · OtherFAMILY SERVICE FOUNDATION: $25,000 · OtherINSTITUTE OF TEXAN CULTURES: $24,000 · OtherLANDA GARDENS CONSERVANCY: $23,500 · OtherSNIPSA INC: $22,000 · OtherSAN ANTONIO RIVER FOUNDATION: $22,875 · Other+55 more: $342,895 · Other+55 moreWORLD MONUMENTS FUND INC: $105,000 · Arts & CultureWORLD MONUMENTS FUND INCHouston Grand Opera Association Inc: $50,000 · Arts & CultureHouston Grand Opera Associa…SAN ANTONIO MUSEUM OF ART: $46,000 · Arts & CultureSAN ANTONIO MUSEUM OF ARTWitte Museum: $46,000 · Arts & CultureWitte MuseumALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN: $44,000 · Arts & CultureALAMO PUBLIC TELECOMMUNICAT…TEXAS PUBLIC RADIO: $35,700 · Arts & CultureTEXAS PUBLIC RADIOSAN ANTONIO CHILDREN'S MUSEUM: $15,000 · Arts & CultureFamily Service Association of San Antonio Inc: $100,000 · Human ServicesFamily Ser…THE CHILDREN'S SHELTER: $20,000 · Human ServicesTHE CHILDR…American National Red Cross & Its Constituent Chapters and Branches: $9,000 · Human ServicesAmerican N…SAN ANTONIO ZOOLOGICAL SOCIETY: $55,000 · AnimalsWILDLIFE RESCUE AND REHABILITATION INC: $26,000 · AnimalsWILD HORSE CONNECTION CORPORATION: $10,500 · AnimalsAUSTIN PETS ALIVE INC: $6,500 · Animals+1 more: $1,000 · AnimalsUNITED WAY OF SAN ANTONIO AND BEXAR COUNTY: $80,000 · PhilanthropyCHILD ADVOCATES SAN ANTONIO: $27,000 · Civil RightsVOICES FOR CHILDREN INC: $9,000 · Civil RightsAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $6,500 · Civil RightsNational Domestic Workers Alliance Inc: $3,000 · Civil RightsHUMAN RIGHTS CAMPAIGN FOUNDATION: $2,000 · Civil Rights+2 more: $3,000 · Civil RightsBrackenridge Park Conservancy: $23,500 · Recreation & SportsSPECIAL OLYMPICS OF TEXAS INC: $1,500 · Recreation & Sports
Other$659,770Arts & Culture$341,700Human Services$129,000Animals$99,000Philanthropy$80,000Civil Rights$50,500Recreation & Sports$25,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWORLD MONUMENTS FUND INC: $105,000 over 9y, 0.1% of budgetFamily Service Association of San Antonio Inc: $100,000 over 4y, 0.1% of budgetUNITED WAY OF SAN ANTONIO AND BEXAR COUNTY: $80,000 over 8y, 0.0% of budgetSAN ANTONIO ZOOLOGICAL SOCIETY: $55,000 over 9y, 0.0% of budgetHouston Grand Opera Association Inc: $50,000 over 9y, 0.0% of budgetSAN ANTONIO MUSEUM OF ART: $46,000 over 9y, 0.1% of budgetWitte Museum: $46,000 over 9y, 0.1% of budgetALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN: $44,000 over 9y, 0.2% of budgetTEXAS PUBLIC RADIO: $35,700 over 9y, 0.2% of budgetCHILD ADVOCATES SAN ANTONIO: $27,000 over 6y, 0.1% of budgetWILDLIFE RESCUE AND REHABILITATION INC: $26,000 over 9y, 0.1% of budgetLANDA GARDENS CONSERVANCY: $23,500 over 9y, 2.3% of budgetBrackenridge Park Conservancy: $23,500 over 9y, 0.1% of budgetSAN ANTONIO RIVER FOUNDATION: $22,875 over 9y, 0.7% of budgetYOUTH ORCHESTRAS OF SAN ANTONIO: $20,000 over 9y, 0.2% of budgetTHE CHILDREN'S SHELTER: $20,000 over 5y, 0.0% of budgetNATIONAL PARK FOUNDATION: $16,500 over 8y, 0.0% of budgetSAN ANTONIO CHILDREN'S MUSEUM: $15,000 over 5y, 0.1% of budgetSAN ANTONIO FOOD BANK: $10,500 over 6y, 0.0% of budgetWILD HORSE CONNECTION CORPORATION: $10,500 over 3y, 1.3% of budgetAdaptive Sports Center of Crested Butte Inc: $10,000 over 4y, 0.1% of budgetUNITED STATES FUND FOR UNICEF: $10,000 over 1y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC: $10,000 over 1y, 0.0% of budgetVOICES FOR CHILDREN INC: $9,000 over 4y, 0.4% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $9,000 over 8y, 0.0% of budgetGUIDE DOG FOUNDATION FOR THE BLIND INC: $8,500 over 9y, 0.0% of budgetMONTE VISTA HISTORICAL ASSOCIATION: $8,170 over 8y, 2.7% of budgetSAN ANTONIO BRASS INC: $8,000 over 8y, 12% of budgetKEEP AUSTIN FED: $7,500 over 9y, 0.1% of budgetSOUTHWEST SCHOOL OF ART: $7,000 over 7y, 0.0% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $6,500 over 9y, 0.0% of budgetAUSTIN PETS ALIVE INC: $6,500 over 9y, 0.0% of budgetELF LOUISE INC: $6,000 over 3y, 0.7% of budgetMEALS ON WHEELS SAN ANTONIO: $6,000 over 3y, 0.0% of budgetSAN ANTONIO FERAL CAT COALITION: $4,200 over 3y, 0.2% of budgetNational Domestic Workers Alliance Inc: $3,000 over 6y, 0.0% of budgetTHE PROTESTANT EPISCOPAL HIGH SCHOOL IN VIRGINIA: $2,500 over 3y, 0.0% of budgetHUMAN RIGHTS CAMPAIGN FOUNDATION: $2,000 over 3y, 0.0% of budgetMEMORIAL SLOAN-KETTERING CANCER CENTER: $1,500 over 2y, 0.0% of budgetSave The Children Federation Inc: $1,500 over 3y, 0.0% of budgetTREVOR PROJECT INC: $1,500 over 3y, 0.0% of budgetNATIONAL IMMIGRATION LAW CENTER: $1,500 over 3y, 0.0% of budgetSPECIAL OLYMPICS OF TEXAS INC: $1,500 over 3y, 0.0% of budgetCENTER FOR DISASTER PHILANTHROPY INC: $1,000 over 1y, 0.0% of budgetOPERATION KINDNESS: $1,000 over 2y, 0.0% of budgetCOLORECTAL CANCER ALLIANCE: $750 over 1y, 0.0% of budgetBELIEVE IN TOMORROW NATIONAL CHILDREN'S FOUNDATION: $500 over 1y, 0.0% of budgetST ANDREW'S EPISCOPAL SCHOOL INC: $500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds WORLD MONUMENTS FUND INC ↗
  • Who funds Family Service Association of San Antonio Inc ↗
  • Who funds UNITED WAY OF SAN ANTONIO AND BEXAR COUNTY ↗
  • Who funds SAN ANTONIO ZOOLOGICAL SOCIETY ↗
  • Who funds Houston Grand Opera Association Inc ↗
  • Who funds SAN ANTONIO MUSEUM OF ART ↗
  • Who funds Witte Museum ↗
  • Who funds ALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN ↗
  • Who funds TEXAS PUBLIC RADIO ↗
  • Who funds CHILD ADVOCATES SAN ANTONIO ↗
  • Who funds WILDLIFE RESCUE AND REHABILITATION INC ↗
  • Who funds LANDA GARDENS CONSERVANCY ↗
  • Who funds Brackenridge Park Conservancy ↗
  • Who funds SAN ANTONIO RIVER FOUNDATION ↗
  • Who funds YOUTH ORCHESTRAS OF SAN ANTONIO ↗
  • Who funds THE CHILDREN'S SHELTER ↗
  • Who funds NATIONAL PARK FOUNDATION ↗
  • Who funds SAN ANTONIO CHILDREN'S MUSEUM ↗
  • Who funds SAN ANTONIO FOOD BANK ↗
  • Who funds WILD HORSE CONNECTION CORPORATION ↗
  • Who funds Adaptive Sports Center of Crested Butte Inc ↗
  • Who funds UNITED STATES FUND FOR UNICEF ↗
  • Who funds MEDECINS SANS FRONTIERES USA INC ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

San Antonio Area Foun…Elizabeth Huth Coates…John R & Greli N Less…Betty Stieren Kelso F…Nancy Smith Hurd Foun…Faye L & William L Co…Pryor Myra Stafford C…Jack and Doris Smothe…Marcia & Otto Koehler…Greater Houston Commu…Alfred S Gage Foundat…Nathalie & Gladys Dal…
San Antonio Area FoundationTX33.2× affinity14 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: San Antonio Area Foundation · Elizabeth Huth Coates Charitable Foundation of 1992 · John R & Greli N Less Charitable Trust #FE324 · Betty Stieren Kelso Foundation · Nancy Smith Hurd Foundation · Faye L & William L Cowden Charitable Foundation · Pryor Myra Stafford Char Tr F0030100 · Jack and Doris Smothers and Bud Smothers Memorial Foundation · Marcia & Otto Koehler Foundation · Greater Houston Community Foundation · Alfred S Gage Foundation · Nathalie & Gladys Dalkowitz Charitable Trust

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Harris K & Lois G Oppenheimer Foundation funds: left to right is the share of its income from government, bottom to top the share from Harris K & Lois G Oppenheimer Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%4%8%15%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 30%
  • Save the Children Federation Inc: 30% of income from government
  • President and Fellows of Harvard College: 7% of income from government
no gov moneyreceives it· size = income
2get no government money at all
12report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–90%
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 90 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Harris K & Lois G Oppenheimer’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home