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The Harold Hamm Foundation at a glance

· Private foundation

The Harold Hamm Foundation

Its FY2026 filing reports that it accepted unsolicited grant applications.

$1.7M
Granted FY2026still arriving
5
Grants FY2026still arriving
3
States reached
$1.5M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Education$46MHealth$1.4MArts & Culture$1.3MPublic Benefit$125kHuman Services$95kAnimals$45kReligion$30kCommunity Improvement$25kOther$0
02FY2026 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2026

  • Under $10k1 grant · $2k
  • $10k–50k2 grants · $55k
  • $50k–250k1 grant · $96k
  • $250k+1 grant · $1.5M
$30,000
Median grant
3
States reached
$8.1M
Total assets
Largest grants
RecipientAmount
OU FOUNDATION$1,544,339
MCCALL'S CHAPEL SCHOOL$95,586
RIVER CITY HOPE STREET$30,000
TURNING POINT USA$25,000
THE DENNY PRICE FAMILY YMCA$1,500
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 (FY21–26, $66k) land where the poverty rate runs at 16%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%OKLAHOMA BAPTIST HOMES FOR CHILDREN: $5k → 15%THE DENNY PRICE FAMILY YMCA: $2k → 16%JESUS HOUSE: $25k → 16%Denny Price Family YWCA: $2k → 16%DENNY PRICE FAMILY YWCA: $2k → 16%Denny Price Family YWCA: $2k → 16%YWCA OKC: $10k → 16%YWCA OKC: $5k → 16%YWCA OKC: $5k → 16%INFANT CRISIS SERVICES: $5k → 16%INFANT CRISIS SERVICES INC: $5k → 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.
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 51% of The Harold Hamm Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 77% of the giving stays in OK; by stated purpose, 26%.

The Harold Hamm Foundationlessmore of its giving
Placed by recipient address · 51% directed abroad (not shown)
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

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

73%of every dollar goes to organizations it has funded before.
$37M · 15 repeat orgs$14M to everyone else

15 repeat relationships: 2 still active in FY2026, 13 since wound down; 3 grantees were first funded in FY2026 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
27

Total granted

$37M
$13M

Median revenue growth · since first grant

-2%
+8%

Still filing today

80%
33%

New vs renewed · share of each year

In FY2026, 91% of grant dollars renewed an existing relationship; $151k went to new ones.

50%100%’21’22’23’24’25’26
RenewedFirst-time

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

’21’22’23’24’25’26
EducationHuman ServicesArts & CultureEmploymentPublic BenefitYouth DevelopmentOther
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

  • OS
    Oklahoma State University Foundation
    2× · 2022–2024 · $25M · revenue +8%
  • PT
    POSITIVE TOMORROWS INC
    2× · 2022–2023 · $7k · revenue +17%
  • NH
    NICHOLS HILLS PARKS INC
    5× · 2021–2025 · $7k · revenue +75%

Funded once

  • UO
    University of Mary
    one grant, 2022 · $10M · revenue +8%
  • UO
    UNIVERSITY OF OKLAHOMA FD
    one grant, 2024 · $1.4M
  • NC
    NATIONAL COWBOY HALL OF FAME
    one grant, 2024 · $1.0M
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
Oklahoma Council of Public Affairs Inc

To promote the flourishing of the people of oklahoma by advancing principles and policies that support free enterprise, limited government, personal responsibility, and individual initiative.

Public Safety & Disaster
2
Oklahoma State Chamber of Commerce and Industry Inc

The State Chamber is a statewide membership organization. Our purpose is to be the unified voice of business and the most effective advocacy organization at the State Capitol.

—
3
United Way of Central Oklahoma Inc

United way of central oklahoma is committed to connecting people and resources to improve the well being of those in our community.

Philanthropy
4
University of the Ozarks

True to our christian heritage, we prepare students from diverse religious, cultural, educational and economic backgrounds to live life fully.

Education
5
Oklahoma City University

Inspired by a culture of creativity, Oklahoma City University fosters an immersive, personalized experience that welcomes and prepares students to pursue boundless opportunities.

Education
6
Goodwill Industries of Tulsa Inc

Goodwill empowers people to reach their full potential through work opportunities, training, and support services.

Employment
7
Leadership Oklahoma Inc

Leadership oklahoma was organized to create, inspire, and support a dynamic network of leaders whose increased awareness and commitement to service will energize oklahomans to shape oklahoma's future.

Public Benefit
8
Oklahoma Christian Academy Inc

Establish, maintain, and conduct a school for the instruction and training of youth.

Education
9
Habitat for Humanity of Okaloosa County Inc

Okaloosa habitat for humanity is a non-profit, christian organization dedicated to eliminating substandard housing in okaloosa county. we provide opportunites for the community to show god's love in action. through partnership with people…

Housing & Shelter
10
Dallas International University

As a christian university, we provide education and research opportunities preparing global leaders to partner with local communities.

Education
11
Transitional Living Centers of Oklahoma Inc

Assist in preparing homeless and near homeless women in the skills to care for their children and enable them to move toward self-sufficiency.

Housing & Shelter
12
Oklahoma City Housing Services Redevelopment Corporation

To revitalize urban oklahoma city neighborhoods and create affordable housing opportunities by rehabilitating historic homes, constructing new homes, and increasing community investment through home ownership.

Housing & Shelter
How this is measured
The grantee most central to the portfolio’s shape is Positive Tomorrows Inc; the most unlike its peers is River City Hope Street. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

24 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 24 of the 45 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)
6
Early backer (in before they grew)
24/24
Grantees still filing
12/24
Grew since first funded

Where the money sits, by cause and then by grantee

Oklahoma State University Foundation: $25,005,174 · EducationOklahoma State University FoundationUNIVERSITY OF OKLAHOMA FOUNDATION INC: $11,565,773 · EducationUNIVERSITY OF OKLAHOMA FOUNDATION INCUniversity of Mary: $10,200,453 · EducationUniversity of Mary+3 more: $703,053 · EducationUNIVERSITY OF OKLAHOMA FD: $1,424,600 · OtherNATIONAL COWBOY HALL OF FAME: $1,025,505 · Other+26 more: $252,822 · OtherFRIENDS OF THE MANSION INC: $249,999 · Arts & Culture+1 more: $3,000 · Arts & CultureINSTITUTE FOR CITIZEN FOCUSED SERVICE: $125,000 · Public BenefitJesus House Inc: $25,000 · Human ServicesYOUNG WOMENS CHRISTIAN ASSOCIATION OF OKLAHOMA CI: $20,000 · Human ServicesINFANT CRISIS SERVICES INC: $10,000 · Human ServicesTHE DENNY PRICE FAMILY YMCA OF ENID OKLAHOMA INC: $6,000 · Human ServicesOKLAHOMA BAPTIST HOMES FOR CHILDREN INC: $5,000 · Human ServicesRIVER CITY HOPE STREET: $30,000 · EmploymentSOONERS HELPING SOONERS INC: $2,000 · EmploymentPOSITIVE TOMORROWS INC: $7,000 · Youth Development
Education$47,474,453Other$2,702,927Arts & Culture$252,999Public Benefit$125,000Human Services$66,000Employment$32,000Youth Development$7,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetOklahoma State University Foundation: $25,005,174 over 2y, 9.9% of budgetUNIVERSITY OF OKLAHOMA FOUNDATION INC: $11,565,773 over 5y, 1.0% of budgetUniversity of Mary: $10,200,453 over 1y, 9.8% of budgetFRIENDS OF THE MANSION INC: $249,999 over 3y, 25% of budgetINSTITUTE FOR CITIZEN FOCUSED SERVICE: $125,000 over 1y, 6.0% of budgetHORATIO ALGER ASSN OF DISTINGUISHED AMERICANS INC: $110,000 over 2y, 0.3% of budgetJesus House Inc: $25,000 over 1y, 1.2% of budgetYOUNG WOMENS CHRISTIAN ASSOCIATION OF OKLAHOMA CI: $20,000 over 3y, 0.2% of budgetINFANT CRISIS SERVICES INC: $10,000 over 2y, 0.1% of budgetRonald McDonald House Charities of Tulsa: $10,000 over 2y, 0.4% of budgetPOSITIVE TOMORROWS INC: $7,000 over 2y, 0.1% of budgetNICHOLS HILLS PARKS INC: $6,850 over 5y, 2.1% of budgetTHE DENNY PRICE FAMILY YMCA OF ENID OKLAHOMA INC: $6,000 over 3y, 0.1% of budgetOKLAHOMA BAPTIST HOMES FOR CHILDREN INC: $5,000 over 1y, 0.0% of budgetTHE HOMELESS ALLIANCE INC: $5,000 over 1y, 0.1% of budgetOKLAHOMA HALL OF FAME: $3,000 over 3y, 0.0% of budgetA CHANCE TO CHANGE FOUNDATION: $2,500 over 1y, 0.1% of budgetREGIONAL FOOD BANK OF OKLAHOMA INC: $2,500 over 1y, 0.0% of budgetSOONERS HELPING SOONERS INC: $2,000 over 2y, 0.4% 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.

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.

El and Thelma Gaylord…Oklahoma City Communi…Sarkeys FoundationServant FoundationRainbolt Family Found…The Merrick FoundationHarris Foundation IncAmerican Fidelity Fou…Inasmuch FoundationDobson Family Foundat…Presbyterian Health F…Fred Jones Family Fou…
El and Thelma Gaylord FoundationOK22× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: El and Thelma Gaylord Foundation · Oklahoma City Community Foundation Inc · Sarkeys Foundation · Servant Foundation · Rainbolt Family Foundation · The Merrick Foundation · Harris Foundation Inc · American Fidelity Foundation · Inasmuch Foundation · Dobson Family Foundation · Presbyterian Health Foundation · Fred Jones Family Foundation

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 The Harold Hamm Foundation funds: left to right is the share of its income from government, bottom to top the share from The Harold Hamm Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 100%2%6%14%25%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →
    no gov moneyreceives it· size = income
    10get no government money at all
    7report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–10%
    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.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to The Harold Hamm Foundation?

    Find your warmest path to The Harold Hamm Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    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 45 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 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Harold Hamm’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