The Helen and Sidney Witty

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.

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

Synchrony Foundation

Stamford, CT

In 2024, Synchrony Foundation supported charitable organizations across workforce development, education, financial assistance, and giving, with grants ranging from $150 to $2.6 million and a median of $10,000. Its largest shares of grant funding went to Connecticut, New York, and South Carolina, followed by the District of Columbia and New Jersey; it does not accept unsolicited requests and funds preselected organizations only.

Yale University

New Haven, CT

Yale supports education, research, scholarship, preservation, public service, and community organizations, including through sponsored research and fellowships. Its 2025 grants ranged from $3,000 to $14.3 million, with a median of about $136,000; recipients were based mainly in Connecticut, California, Massachusetts, New York, and Pennsylvania. The profile does not state whether Yale accepts unsolicited requests.

Knights of Columbus Charitable Fund Inc

New Haven, CT

The fund supports Catholic organizations and other charities whose missions align with Catholic teachings, primarily through donor-advised grants; 2024 awards had a median of $16,250, though amounts varied widely. Its grants went to organizations across the United States, with the largest shares in Washington, DC, Ohio, Connecticut, Virginia, and California. It does not accept unsolicited grant applications.