The Harold Hamm Foundation concentrates its giving on large, targeted investments in diabetes research at the University of Oklahoma and on regional cultural/educational programming. Grants are sizable and purpose-driven—primarily funding research endowments and program support—reflecting a preference for institution-level partners in Oklahoma and heritage institutions with statewide reach.
The Harold Hamm Foundation’s largest recent grant, a $3,988,990 award to OU Foundation in 2025 for general support, sets the tone for a portfolio built around institution-level commitments. A second major theme is diabetes research at the University of Oklahoma: in 2023 the foundation gave $1,967,596 to University of Ok Foundation for various research expendable funds for diabetes, and in 2024 it added $1,174,602 to University of Oklahoma Fd for diabetes research. Those grants place the foundation among funders that use large, targeted awards to support research infrastructure rather than scattered small gifts. Beyond health research, the portfolio also includes cultural and educational support, such as a $723,157 grant to National Cowboy Hall of Fame for educational programming and a $60,000 gift to Horatio Alger Assoc for Distinguished Americans for giving club support for educational programs. The pattern is consistent with a regional funder that backs a small set of institutions repeatedly, with Oklahoma organizations appearing often alongside a few out-of-state partners in education, heritage, and public-service work.
Diabetes research is a defining part of the portfolio. The foundation gave $1,967,596 to University of Ok Foundation for various research expendable funds for diabetes in 2023, then followed with $1,174,602 to University of Oklahoma Fd for diabetes research in 2024. It also supported the University of Oklahoma Foundation with $25,000 for Mewbourne College of Earth and Energy leadership and excellence in education, showing a broader relationship with the university. In education, grants include $60,000 to Horatio Alger Assoc for Distinguished Americans for educational programs and $10,000 to Stropes Foudation for scholarships and students education. The foundation also funds basic-needs services: $25,000 to Jesus House for feeding and shelter homeless, $5,000 to Infant Crisis Services for childhood hunger, and $5,000 to Ronald McDonald House for accommodations and food for families caring for children with cancer. Veteran support appears in a $10,000 grant to Animal Rescue Foundation for training animals to help veterans.
Typical grants are modest compared with the largest awards: the p25 is $1,500, the median is $5,000, and the p75 is $25,000. That spread shows a portfolio with a few very large institution-level grants and many smaller operating or program awards. The same recipients can appear across multiple years, including University of Oklahoma-related entities, Horatio Alger Association, Penfed Foundation, Infant Crisis Services, and Ronald McDonald House. The foundation funds individuals and its recent record is entirely made up of U.S. recipients. The pattern points to a private family-style funder making direct grants rather than program-related investments.
$4.5M
$9M
$160K
$4.5M
Most grants fall between $2K and $25K, with a median of $5K.
25th Percentile
$2K
Median
$5K
75th Percentile
$25K
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Highly concentrated: very few, large grants that favor major institutional partners (two University of Oklahoma entities and a prominent regional museum). Funding appears directed toward long-term research endowments and program support rather than many small or one-off grants.
Notable grantees: University of Oklahoma Foundation / University of OK Foundation, University of Oklahoma (diabetes research endowments), National Cowboy & Western Heritage Museum
Most grants land in Oklahoma, and 79% of grants go to recipients in the HQ state. Norman appears repeatedly through OU Foundation, University of Oklahoma Fd, and University of Oklahoma Foundation. Oklahoma City is another frequent recipient city, with National Cowboy Hall of Fame, Jesus House, YWCA Oklahoma City, Infant Crisis Services, and Friends of the Mansion all receiving support. Outside Oklahoma, the foundation also gives in Virginia, including Arlington and Alexandria, as well as smaller numbers of grants to California, Wisconsin, Oregon, and North Carolina through individual organizations.
The foundation’s recent grants center on diabetes research at the University of Oklahoma, plus regional cultural and educational programming. It also supports addiction recovery, childhood hunger, homelessness services, scholarship and tuition support, pediatric cancer family assistance, and veteran-related assistance.
Typical grant size is $1,500 at the 25th percentile, $5,000 at the median, and $25,000 at the 75th percentile. The portfolio also includes much larger awards, including a $3,988,990 grant and two diabetes research grants above $1 million.
It gives most often in Oklahoma, which accounts for 79% of grants to recipients in the HQ state. Norman and Oklahoma City appear frequently among recipient cities, and Virginia is the top state by grant count outside Oklahoma-linked grants.
Yes. Recent grants include $723,157 for educational programming at National Cowboy Hall of Fame, $60,000 for educational programs through Horatio Alger Assoc for Distinguished Americans, and $10,000 for scholarships and students education at Stropes Foudation. It also gave $5,000 to OSU Foundation for tuition for students.
Yes. Recent grants include $25,000 to Jesus House for feeding and sheltering homeless people, $5,000 to Infant Crisis Services for childhood hunger, $5,000 to Ronald McDonald House for accommodations and food for families caring for children with cancer, and $10,000 to Animal Rescue Foundation for training animals to help veterans.
2026
Source: IRS Form 990-PF, fiscal year 2026.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| OU FOUNDATION | NORMAN, OK | $3,988,990 | 2026 | GENERAL SUPPORT |
| UNIVERSITY OF OKLAHOMA FD | NORMAN, OK | $1,424,600 | 2026 | FUNDING OF VARIOUS DIABETES RESEARCH |
| NATIONAL COWBOY HALL OF FAME | OKLAHOMA CITY, OK | $1,025,505 | 2026 | EDUCATIONAL PROGRAMING |
| AMERICA FIRST POLICY INSTITUTE | ARLINGTON, VA | $497,467 | 2026 | GENERAL SUPPORT |
| FRIENDS OF THE MASON | OKLAHOMA CITY, OK | $83,333 | 2026 | SUPPORT 1ST FAMILY RESIDENCE CAMPAIGN |
| HORATIO ALGER ASSOCIATION | ALEXANDRIA, VA | $30,000 | 2026 | GENERAL SUPPORT |
| JESUS HOUSE | OKLAHOMA CITY, OK | $25,000 | 2026 | FEEDING AND SHELTER HOMELESS |
| CLR COMMUNITY FD | OKLAHOMA CITY, OK | $25,000 | 2026 | CREATING HEALTHIER COMMUNITIES |
| PENFED FOUNDATION | ALEXANDRIA, VA | $10,000 | 2026 | GENERAL SUPPORT |
| PENFED FOUNDATION | ALEXANDRIA, VA | $10,000 | 2026 | HELPING PEOPLE |
| STROPES FOUNDATION | RACINE, WI | $10,000 | 2026 | SUPPORTS SCHOLARSHIPS EDUCATION ETC. STUDENTS ED |
| RONALD MCDONALD HOUSE | EDMOND, OK | $5,000 | 2026 | HELPING CRITICALLY ILL CHILDREN |
| INFANT CRISIS SERVICES | OKLAHOMA CITY, OK | $5,000 | 2026 | CHILDHOOD HUNGER |
| OSU FOUNDATION | STILLWATER, OK | $5,000 | 2026 | TUITION FOR STUDENTS |
| INFANT CRISIS SERVICES INC | OKLAHOMA CITY, OK | $5,000 | 2026 | GENERAL SUPPORT |
| SCOTT AND KIM VERPLANK FD | NORMAN, OK | $5,000 | 2026 | HELPING PEOPLE INT. CHILDREN |
| YWCA OKLAHOMA CITY | OKLAHOMA CITY, OK | $5,000 | 2026 | GENERAL SUPPORT |
| LEXINGTON PUBLIC SCHOOLS | LEXINGTON, OK | $3,605 | 2026 | HELPING CHILDREN, SCHOLARSHIPS, ETC. |
| DENNY PRICE FAMILY YWCA | ENID, OK | $1,500 | 2026 | BACK A YOUTH |
| OKLAHOMA HALL OF FAME | OKLAHOMA CITY, OK | $1,000 | 2026 | GENERAL SUPPORT |
| SOONERS HELPING SOONERS | NORMAN, OK | $1,000 | 2026 | HELPING STUDENTS |
| OKLAHOMA HALL OF FAME | OKLAHOMA CITY, OK | $1,000 | 2026 | FREE EDUCATIONAL PROGRAMS |
| SOONERS HELPING SOONERS INC | NORMAN, OK | $1,000 | 2026 | GENERAL SUPPORT |
| ENID PUBLIC SCHOOL FOUNDATION | ENID, OK | $250 | 2026 | GENERAL SUPPORT |
| ENID PUBLIC SCHOOLS | ENID, OK | $250 | 2026 | HELPING STUDENTS AND CHILDREN AND TEACHERS |
| NICHOLA HILLS PARKS INC | NICHOLS HILLS, OK | $100 | 2026 | GENERAL SUPPORT |
| NICHOLS HILLS PARK | NICHOLS HILLS, OK | $100 | 2026 | IMPROVING PARKS |
| UNIVERSITY OF OKLAHOMA FD | NORMAN, OK | $1,174,602 | 2024 | FUNDING OF VARIOUSDIABETES RESEARCH |
| NATIONAL COWBOY HALL OF FAME | OKLAHOMA CITY, OK | $723,157 | 2024 | EDUCATIONAL PROGMING |
| FRIENDS OF THE MASON | OKLAHOMA CITY, OK | $83,333 | 2024 | SUPPORT 1ST FAMILY RESIDENCE CAMPAIGN |
| JESUS HOUSE | OKLAHOMA CITY, OK | $25,000 | 2024 | FEEDING AND SHELTER HOMELESS |
| CLR COMMUNITY FD | OKLAHOMA CITY, OK | $25,000 | 2024 | CREATING HEALTIERCOMMUNITIES |
| PENFED FOUNDATION | ALEXANDRIA, VA | $10,000 | 2024 | HELPING PEOPLE |
| STROPES FOUDATION | RACINE, WI | $10,000 | 2024 | SUPPORTS SCHOLARSHIPSEDUCATION ETC.STUDENTS ED |
| RONALD MCDONALD HOUSE | EDMOND, OK | $5,000 | 2024 | HELPING CRIACALLY ILLCHILDRENHELPING ILL |
| SCOTT AND KIM VERPLANK FD | NORMAN, OK | $5,000 | 2024 | HELPING PEOPLEINT.CHILDREN |
| OSU FOUNDATION | STILLWATER, OK | $5,000 | 2024 | TUITION FORSTUDENTS |
| INFANT CRISIS SERVICES | OKLAHOMA CITY, OK | $5,000 | 2024 | CHILDHOOD HUNGER |
| LEXINGTON PUBLIC SCHOOLS | LEXINGTON, OK | $3,605 | 2024 | HELPING CHILDRE SCHOLORSHIPS ETC |
| Denny Price Family YWCA | Enid, OK | $1,500 | 2024 | Back a Youth |
| SOONERS HELPING SOONERS | NORMAN, OK | $1,000 | 2024 | HELPING STUDENTSAND CHILDREN |
| OKLAHOMA HALL OF FAME | OKLAHOMA CITY, OK | $1,000 | 2024 | FREE EDUCATIONALPROGRAMS |
| ENID PUBLIC SCHOOLS | ENID, OK | $250 | 2024 | HELPING STUDENTSAND CHILDRENAND TEACHERS |
| NICHOLS HILLS PARK | NICHOLS HILLS, OK | $100 | 2024 | IMPROVING PARKS |
| UNIVERSITY OF OK FOUNDATION | NORMAN, OK | $1,967,596 | 2023 | FUNDING OF VARIOUS RESEARCHEXPENDABLE FUNDS FOR DIABETES |
| Friends of the Mansion | Oklahoma City, OK | $83,333 | 2023 | donation to supportthe 1st family residence capital campaign |
| Horatio Alger Assoc for Distinguished Americans | Alexandria, VA | $60,000 | 2023 | Giving club supportfor educational programs |
| General Assembly and Church of the 1st born | Brownsville, OR | $25,000 | 2023 | donation to the church's relief fund |
| University of Oklahoma Foundation | Norman, OK | $25,000 | 2023 | donation for Mewbournecollege of Earth and Energyleadership, excellence in education |
| Horatio Alger Assoc for Distinguished Americans | Alexandria, VA | $20,000 | 2023 | Giving club support for educational programs |
UNIVERSITY OF OKLAHOMA FD
$1,424,600FUNDING OF VARIOUS DIABETES RESEARCH
NATIONAL COWBOY HALL OF FAME
$1,025,505EDUCATIONAL PROGRAMING
AMERICA FIRST POLICY INSTITUTE
$497,467GENERAL SUPPORT
FRIENDS OF THE MASON
$83,333SUPPORT 1ST FAMILY RESIDENCE CAMPAIGN
HORATIO ALGER ASSOCIATION
$30,000GENERAL SUPPORT
CLR COMMUNITY FD
$25,000CREATING HEALTHIER COMMUNITIES
STROPES FOUNDATION
$10,000SUPPORTS SCHOLARSHIPS EDUCATION ETC. STUDENTS ED
RONALD MCDONALD HOUSE
$5,000HELPING CRITICALLY ILL CHILDREN
SCOTT AND KIM VERPLANK FD
$5,000HELPING PEOPLE INT. CHILDREN
LEXINGTON PUBLIC SCHOOLS
$3,605HELPING CHILDREN, SCHOLARSHIPS, ETC.
DENNY PRICE FAMILY YWCA
$1,500BACK A YOUTH
SOONERS HELPING SOONERS
$1,000HELPING STUDENTS
SOONERS HELPING SOONERS INC
$1,000GENERAL SUPPORT
ENID PUBLIC SCHOOL FOUNDATION
$250GENERAL SUPPORT
ENID PUBLIC SCHOOLS
$250HELPING STUDENTS AND CHILDREN AND TEACHERS
NICHOLA HILLS PARKS INC
$100GENERAL SUPPORT
NICHOLS HILLS PARK
$100IMPROVING PARKS
UNIVERSITY OF OKLAHOMA FD
$1,174,602FUNDING OF VARIOUSDIABETES RESEARCH
NATIONAL COWBOY HALL OF FAME
$723,157EDUCATIONAL PROGMING
FRIENDS OF THE MASON
$83,333SUPPORT 1ST FAMILY RESIDENCE CAMPAIGN
CLR COMMUNITY FD
$25,000CREATING HEALTIERCOMMUNITIES
PENFED FOUNDATION
$10,000HELPING PEOPLE
STROPES FOUDATION
$10,000SUPPORTS SCHOLARSHIPSEDUCATION ETC.STUDENTS ED
RONALD MCDONALD HOUSE
$5,000HELPING CRIACALLY ILLCHILDRENHELPING ILL
SCOTT AND KIM VERPLANK FD
$5,000HELPING PEOPLEINT.CHILDREN
LEXINGTON PUBLIC SCHOOLS
$3,605HELPING CHILDRE SCHOLORSHIPS ETC
Denny Price Family YWCA
$1,500Back a Youth
SOONERS HELPING SOONERS
$1,000HELPING STUDENTSAND CHILDREN
ENID PUBLIC SCHOOLS
$250HELPING STUDENTSAND CHILDRENAND TEACHERS
NICHOLS HILLS PARK
$100IMPROVING PARKS
FUNDING OF VARIOUS RESEARCHEXPENDABLE FUNDS FOR DIABETES
Friends of the Mansion
$83,333donation to supportthe 1st family residence capital campaign
Horatio Alger Assoc for Distinguished Americans
$60,000Giving club supportfor educational programs
General Assembly and Church of the 1st born
$25,000donation to the church's relief fund
donation for Mewbournecollege of Earth and Energyleadership, excellence in education
Horatio Alger Assoc for Distinguished Americans
$20,000Giving club support for educational programs