The Foundation for a Cure for Mitochondrial Disease Inc

American Savings Foundation Inc

New Britain, CT

The foundation funds education, human services, and arts and culture, especially programs serving children, youth, and families, with a primary focus on New Britain and Waterbury and grants across 64 Connecticut towns. In 2025, its grants ranged from $238 to $150,000, with a median of $1,750; it also offers Community Grants of up to $5,000.

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.

Women's Business Development Council Inc

Stamford, CT

Women’s Business Development Council funds defined business projects for eligible Connecticut women-owned small businesses, as well as grants and support for qualified child care businesses. Recent grants ranged from $5,100 to $41,705, with a median of $10,000; listed programs offer awards from $2,500 up to $25,000. It serves applicants across Connecticut, and the profile describes program applications but does not state whether unsolicited requests are accepted.

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.

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.

Thomaston Savings Bank Foundation Inc

Thomaston, CT

The foundation supports arts and culture, community development, education and youth services, health and human services, and public safety, including qualifying programs run by religious organizations. It funds communities where Thomaston Savings Bank has a physical presence in Connecticut; awards typically average $2,000–$3,000, though amounts vary. It accepts applications through annual grant cycles.

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.