Aileen Flanary Educational Fund

The Samuel Roberts Noble Foundation

Ardmore, OK

The foundation primarily supports agricultural research through Noble Research Institute and also funds charitable work in health, education, and community strength, with most grant dollars going to Oklahoma and some to other states. Its 2024 grants ranged from $150 to $36.5 million, with a median of $5,000; the profile does not state whether it accepts unsolicited organizational requests.

Texoma Community Foundation

Denison, TX

Texoma Community Foundation funds projects that improve health and well-being, including healthcare and mental-health access, healthy living, and nursing workforce development. Its 2025 median grant was $20,000 (the reported average was about $30,455), for work serving Grayson and Fannin counties in Texas and Bryan and Marshall counties in Oklahoma. Eligible organizations can submit a first-phase application; full applications are by invitation.

Semple Family Museum Foundation

Tulsa, OK

Duke Energy Foundation

Charlotte, NC

The Duke Energy Foundation funds workforce and local economic development, disaster resilience, conservation, clean water, and economic opportunity in North Carolina, South Carolina, Florida, Ohio, Kentucky, and Indiana. Its 2024 grants had a median of $25,000; applications for grants of $20,000 or less are accepted year-round, after applicants discuss proposals with a state representative.

The Merrick Foundation

Oklahoma City, OK

The Merrick Foundation supports education, arts and culture, mental health, research, shelter and advocacy, and community services, with 96% of its 2024 grant dollars going to Oklahoma organizations. Its 40 grants ranged from $500 to $79,000, with a median of $2,000. The filing directs applicants to an online grant application, so it accepts applications; it lists July 5 and October 11 as deadlines but does not specify the year.

Harvey L Foster Foundation for Science Education

Mandeville, LA

RNR Cross Family Foundation

Durant, OK

The RNR Cross Family Foundation supports a varied mix of causes, including housing and recovery, health and humanitarian work, food assistance, education, Choctaw community resources, arts, and pregnancy support. In 2025, grants ranged from $450 to $51,938, with a median of $4,500; most funding went to Oklahoma, with some grants in Indiana, Texas, and Georgia. The filing does not state whether it accepts 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.

Tulsa Community Foundation

Tulsa, OK

Tulsa Community Foundation supports charitable causes through donor-advised grants and selected funds, including scholarships, emergency assistance, disaster relief, arts and humanities, healthcare, and financial literacy, primarily in the Tulsa metro area and eastern Oklahoma, with some giving elsewhere in the United States. Its 2024 median grant was $18,560; selected field-of-interest funds have application cycles, but the profile does not state whether it accepts unsolicited requests generally.

Oklahoma City Community Foundation Inc

Oklahoma City, OK

The Oklahoma City Community Foundation funds community programs in children’s opportunities, health care, culture and community, older adults, parks and public space, and animal welfare, primarily in Oklahoma City and Central Oklahoma. In 2025, its grants had a median of $18,251; published ranges include up to $40,000 for Opportunities for Children and $30,000 for Culture & Community. Its website lists some programs as open, but the profile does not state whether it accepts unsolicited requests.

Feed the Children Inc

Oklahoma City, OK

Founded in 1979, Feed the Children is a global nonprofit organization dedicated to ending childhood hunger in the U.S. and around the world. Operating in nearly every U.S. state and eight countries across Africa, Asia, and Latin America, the organization provides food, household essentials, nutrition training, clean water programs, school supplies, and disaster relief. With a mission to create a world where no child goes to bed hungry, Feed the Children distributes resources through a network of local community partners, food banks, food pantries, and schools, while implementing sustainable programs focused on reducing hunger, malnutrition, health promotion, and self-reliance.

The Anne and Henry Zarrow Foundation

Tulsa, OK

The foundation supports nonprofits addressing poverty through housing, shelter, basic needs, social services, health and mental healthcare, and community empowerment, along with education, Jewish life, culture, and racial-justice initiatives. It funds primarily in metropolitan Tulsa, with additional support across Oklahoma and in Israel; 2024 grants ranged from $200 to $2.2 million, with a median of about $24,000. It accepts unsolicited requests: eligible nonprofits can email an initial inquiry.