The Tom & Claire ONeil 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.

Aetna Foundation Inc

Hartford, CT

Aetna Foundation supported health and wellness, access to health care, and related community needs; its 2021 grants ranged from $5,000 to $1 million, with a median of $40,000, and went to organizations across multiple states, especially in D.C. and Connecticut. Its 2021 filing was marked final, so it appears to have ended or be winding down grantmaking; that filing said there were no restrictions on who could apply and pointed applicants to its website for application materials.

Bristol-Myers Squibb Foundation Inc

Princeton, NJ

The Bristol-Myers Squibb Foundation supports health-access initiatives for disproportionately affected populations, including cancer, blood disorders, brain health, and clinical-trial participation, in the United States and internationally. In 2024, its median grant was $134,090, though awards varied widely; it says application materials are available upon request and advises organizations to contact it about the process, but does not state whether unsolicited requests are accepted.

Americares Foundation Inc

Stamford, CT

Americares funds health care organizations and programs focused on disaster preparedness and recovery, access to medicines and medical supplies, and community health services. In 2025, its grants ranged from $5,073 to $3.86 million, with a median of about $58,700; it works in the United States and internationally, reaching an average of 80 countries each year. The profile does not state whether it accepts unsolicited requests.

American Savings Foundation Inc

New Britain, CT

American Savings Foundation supports education, human services, and arts and culture, especially programs serving children, youth, and families in Connecticut, with a focus on New Britain and Waterbury. Its 2024 grants ranged from $234 to $150,000, with a median of $1,750; Community Grants are capped at $5,000. It provides application forms for Program and Community Grants, but the profile does not state whether it accepts unsolicited requests.

Hartford Foundation for Public Giving

Hartford, CT

The Greater Hartford Gives Foundation funds nonprofits addressing community needs, with priorities including racial equity, economic and social mobility, wellbeing, neighborhoods, civic engagement, and arts and culture. Its 2024 itemized grants had a median of about $21,600, and it primarily serves 29 Greater Hartford towns. It accepts applications through specific requests for proposals and grant cycles; eligibility varies by opportunity.

Eversource Energy Foundation Inc

Hartford, CT

The Eversource Energy Foundation funds U.S. 501(c)(3) nonprofits working on basic needs, education, environmental stewardship, community engagement, and economic or workforce development. It gives in Eversource’s service territory in Connecticut, Massachusetts, and New Hampshire; its 2024 median grant was $2,000, though awards ranged from $250 to $700,000.

The Community Foundation for Greater New Haven

New Haven, CT

The Community Foundation for Greater New Haven funds nonprofits working in areas including civic vitality, arts and culture, health, and education, with competitive grants for organizations serving its 20-town region. Its 2024 grants ranged from $5,154 to $2.8 million, with a median of $15,000; it accepts applications through specific grant programs, while most donor-advised and designated fund distributions are not open to applications.

Fairfield County's Community Foundation Inc

Norwalk, CT

Fairfield County’s Community Foundation funds equity-focused work including education and youth development, economic opportunity, women and girls’ health, housing, civic engagement, and nonprofit capacity, primarily benefiting Fairfield County residents. Its 2025 grants had a median of $24,080 and ranged from $5,194 to $2 million; it accepts applications for some programs, including rolling capacity-building and small-grant opportunities, while Strategic Partner Grants are invitation-only.

Viking Global Foundation Inc

Stamford, CT

Ion Bank Foundation Inc

Naugatuck, CT

Seattle Foundation

Seattle, WA

Seattle Foundation funds community-led work advancing racial and economic equity in Greater Seattle, including housing, economic opportunity, climate justice, democracy, arts, and organizing; some programs support specific medical or performing-arts needs. Its 2024 grants ranged from $60 to $7 million, with a median of $6,000. It accepts unsolicited requests through program-specific applications or letters of inquiry.