Darryl and Julie Christner Family Foundation

Sarkeys Foundation

Norman, OK

Sarkeys Foundation supports Oklahoma 501(c)(3) organizations working in education, social and human services, and cultural or humanitarian programs of statewide significance, with preference for organizations serving underserved populations. Recent grants averaged roughly $28,000–$36,000 per award in 2023–24, and applicants must be headquartered in Oklahoma and serve Oklahomans.

The Oxley Foundation

Tulsa, OK

The Oxley Foundation’s 2025 giving supported a Tulsa program helping pet owners facing homelessness, mental illness, or addiction arrange pet care during inpatient treatment. It made one grant worth $23,222, reported as the fair market value of a vehicle, to an Oklahoma organization; it gives only to preselected charities and does not accept unsolicited requests.

St John Health System Inc

St. Louis, MO

St John Health System supports health-related activities and community services, including counseling, food access, education, and advocacy, primarily in Oklahoma; its health system serves eastern Oklahoma and southeastern Kansas. In 2025, it awarded 21 grants of $6,000 to $110,000, with a median of $11,000. It does not provide information about whether it accepts unsolicited requests.

Mervin Bovaird Foundation

Tulsa, OK

The Mervin Bovaird Foundation supports a range of organizations, including universities, arts and cultural institutions, and nonprofits working in food assistance, literacy, conservation, housing, and services for homebound people. In 2024, grants ranged from $5,000 to $330,000, with a median of $10,000; 91% of grant dollars went to Oklahoma recipients. It funds only preselected organizations and does not accept unsolicited requests.

McKesson Foundation Inc

Dallas, TX

McKesson Foundation supports healthcare access across the U.S. and Canada, focusing on cancer, healthcare workforce training, and emergency response, especially for vulnerable communities; local priorities include Atlanta, Columbus, Dallas-Fort Worth, Houston, Memphis, Montreal, Richmond, and Toronto. Its 2025 grants ranged from $10,000 to $2.47 million, with a median of $100,000. Its filing says it does not accept unsolicited requests, while its current website describes online applications: up to $25,000 year-round and larger requests from February 1 through April 30.

One Gas Foundation Inc

Tulsa, OK

ONE Gas Foundation supports community enrichment and assistance, education and workforce development (including STEAM and leadership), and community collaboration, with grants benefiting public services, schools, workforce programs, culture, and recreation. Its 2024 grants ranged from $50 to $366,741, with a median of $2,370; most funding went to Oklahoma, followed by Texas and Kansas. The profile does not state whether it accepts unsolicited requests.

Solheim Foundation

Phoenix, AZ

The Giddens Foundation

Edmond, OK

The Ross Charitable Foundation

Tulsa, OK

The Ross Charitable Foundation supports a range of Oklahoma organizations, including schools and educational groups, churches, and community organizations; its 2024 grants ranged from $2,000 to $20,000, with a median of $3,500. It accepts written applications in any form, with a brief description of the organization and funding need plus proof of charitable, tax-exempt status.

Maxine and Jack Zarrow Family Foundation

Tulsa, OK

The foundation funds lasting-impact work, particularly for Tulsa and Jewish communities and people at risk, including health research, arts and cultural institutions, education, senior services, and support for people facing homelessness. In 2024, grants ranged from $328 to $600,000, with a median of $9,400; its giving is primarily focused on the Tulsa area, though it also funded organizations in other states. Grants are by invitation only, and it does not accept unsolicited requests.

Aerojet Rocketdyne Foundation

Melbourne, FL

Scaramucci Foundation

Oklahoma City, OK

The foundation supports Oklahoma organizations across health care, animal welfare, higher education, public safety, food assistance, education, arts, and community programs. Its 2025 grants ranged from $1,000 to $1 million, with a median of $2,150; it funds only preselected charities and does not accept unsolicited requests.