Falling Leaves Foundation

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.

Sky Foundation Inc

Birmingham, MI

Sky Foundation, Inc. is dedicated to raising awareness and funding research for the early detection of pancreatic cancer.

David Mitchell Marcus Foundation

Carbondale, CO

American Genetic Association

South Beach, OR

The American Genetic Association funds organismal genetics and genomics research, including graduate and postdoctoral research, scientific events, and education and community-engagement programs. Its 2025 grants ranged from $3,560 to $12,000, typically around $6,000, and went to universities in several U.S. states. Applicants generally must be AGA members; whether unsolicited requests are accepted is not stated.

Food Allergy Research & Education Inc

McLean, VA

FARE funds food-allergy research, education, and advocacy, with research focused on prevention, diagnosis, treatment, and quality of life. Its 2025 grants had a median award of about $123,000 and went mainly to organizations in Illinois, Ohio, Pennsylvania, California, and Georgia; the profile does not state whether unsolicited requests are accepted.

Health Effects Institute

Boston, MA

HEI funds scientific research on the health effects of air pollution, especially studies relevant to regulation and efforts to reduce traffic-related emissions. Its 2025 grants ranged from $27,099 to $1,122,489, with a median of $252,640; research spans North America, Europe, Asia, and Latin America, and its active traffic-pollution RFA focuses on the United States. The profile does not state whether HEI accepts unsolicited requests.

Hoag Family Foundation

Atherton, CA

The Hoag Family Foundation primarily funds healthcare, social services, basic-needs and youth programs, with a focus on Los Angeles and Orange Counties and California residents. Its 2024 grants ranged from $1,000 to $225,000, with a median of $25,000. It does not accept unsolicited requests; eligible organizations may be invited to apply after an online eligibility survey and letter of inquiry.

The Annexstad Family Foundation

Alpharetta, GA

The foundation funds undergraduate scholarships for students who have overcome difficult circumstances, providing support through partner colleges and universities across the United States. In 2025, its 54 grants ranged from $2,065 to $1 million, with a median of $43,875. It does not accept unsolicited requests; partner institutions select scholarship recipients.

The Susan G Komen Breast Cancer Foundation Inc

Dallas, TX

The Susan G. Komen Breast Cancer Foundation funds breast cancer research and programs supporting education, patient navigation, financial assistance, and access to care. Its 2025 grants ranged from $2,681 to $945,992, with a median of $158,660, and it funds work in the United States and 24 other countries. Research applications require an LOI, and full applications are by invitation; whether it accepts unsolicited requests is not stated.

The Fritz and Mary Lee Duda Family

Dallas, TX

The foundation supports health care, education, social services, youth programs, Catholic community initiatives, and environmental work, with most 2024 funding going to Texas organizations. Its 62 grants ranged from $500 to $60,000, with a median of $3,000. It funds only preselected charitable organizations and does not accept unsolicited requests.

Pat Tillman Foundation

Chicago, IL

The Pat Tillman Foundation funds scholarships and leadership, career, and community support for active-duty service members, veterans, and military spouses pursuing full-time study at accredited U.S. institutions. It awarded $1,466,750 in scholarships in 2024, but no typical individual award amount is stated; it supports individual scholars rather than outside organizations, and no unsolicited-request policy is stated.

Thomas Jefferson University

Philadelphia, PA

Thomas Jefferson University supports program work at universities, hospitals, research organizations, and community-service organizations, with grants ranging from $6,243 to $879,503 and a median award of about $48,500. Its giving is concentrated in Pennsylvania, with additional support across several states, including Washington, New York, Virginia, and Maryland. The profile does not state whether it accepts unsolicited requests.