K S Adams Foundation Co-Trust

Lyon Foundation

Bartlesville, OK

The Lyon Foundation funds charitable, religious, educational, and scientific organizations and activities, with a preference for the Bartlesville area; its 2025 grants all went to Oklahoma recipients. Grants ranged from $2,000 to $605,000, with a median of $15,500. It does not limit giving to preselected organizations, but the profile does not explicitly state whether it accepts unsolicited requests.

Arvest Foundation

Bentonville, AR

Arvest Foundation funds economic development, community programs, arts, nonprofit capacity, scholarships, and construction projects, primarily in Arkansas, Oklahoma, and Missouri. In 2024, grants ranged from $1,000 to $75,000, with a median of $5,000. It gives only to preselected charitable organizations and does not accept unsolicited requests.

McAnaw Family Foundation

Bartlesville, OK

Kenneth G and Diana Moon Adams

Bartlesville, OK

The foundation supports a varied group of charitable organizations, including educational, religious, counseling, and community organizations. Its 2024 grants ranged from $1,000 to $75,000, with a median of $2,000, and went mainly to organizations in North Carolina and Oklahoma, as well as other states. It does not accept unsolicited requests and gives only to preselected organizations.

Tulsa Community Foundation

Tulsa, OK

Tulsa Community Foundation supports a broad range of charitable needs, including arts and humanities, healthcare, education, scholarships, emergency assistance, and endowments. Its 2024 grants had a median of $18,560 and primarily benefited the Tulsa area and eastern Oklahoma, with grants also reaching elsewhere in the U.S.; it administers application cycles for selected funds.

Cresap Family Foundation

Oklahoma City, OK

The Cresap Family Foundation funds youth and families, health and wellness, education, arts and humanities, and animal welfare, primarily in Oklahoma, with a strong but nonmandatory preference for certain counties. Its 2024 grants ranged from $1,000 to $100,000, with a median of $13,500. It accepts unsolicited requests from 501(c)(3) organizations through an LOI and application process.

George Kaiser Family Foundation

Tulsa, OK

George Kaiser Family Foundation funds early childhood education and family support, community health and justice, and neighborhood revitalization, civic projects, and the arts, with a place-based focus on Tulsa. Its 2024 grants had a median of $50,000, though awards ranged widely; it does not accept unsolicited requests for general grantmaking, but its Accelerator Grants initiative is an exception.

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.

Enterprise Holdings Foundation

Saint Louis, MO

Enterprise Holdings Foundation supports nonprofits in health, education, arts, disaster relief, reforestation, hunger relief, and community equity, with an emphasis on organizations actively supported by Enterprise employees and their families. Its reported grants range widely: 2024 giving averaged about $7,700 across 9,499 grants, while the foundation also offers awards of up to $40,000; it supports communities where Enterprise operates worldwide. Unsolicited requests are accepted at any time, but eligible applications must be submitted by an Enterprise team member or their spouse or domestic partner on behalf of a nonprofit they actively support.

Ralph and Frances McGill Foundation

Tulsa, OK

The Ralph and Frances McGill Foundation supports Oklahoma nonprofits across areas including health, human services, education, arts, and community programs. Its 2025 grants ranged from $1,000 to $50,000, with a median of $5,000. It accepts written requests describing a specific need, along with a current board list and proof of 501(c)(3) status; no deadline is stated.

The Sharna and Irvin Frank Foundation

Tulsa, OK

The foundation supports social services for people in poverty, at-risk youth education, non-hospital health care, and limited arts funding, generally favoring operating needs over capital campaigns. It focuses on 501(c)(3) organizations in Greater Tulsa, especially the City of Tulsa, with limited support in Israel; its 2025 grants ranged from $180 to $250,000, with a median of $10,000. It states that it funds only preselected organizations and does not accept unsolicited requests.

Folds of Honor Foundation

Owasso, OK

Folds of Honor funds education scholarships for spouses and children of U.S. military service members and first responders killed or disabled in service, with awards available for K–12 and higher education in the United States and its territories. Awards are up to $5,000 per academic year, based on unmet need, and are paid directly to the school. It accepts scholarship applications through an online portal during its annual application window; it does not make grants to outside applicants.