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Foundations that fund nonprofits in Connecticut
In the IRS filings in CivicVane's data (tax years 2021–2025), 9,574 grantmakers listed 73,582 grants totaling $7.9 billion to 19,526 organizations in Connecticut. 9,104 of them are private foundations reporting on Form 990-PF and 470 are grantmaking public charities, such as community foundations, reporting on Form 990 Schedule I. 1,207 are based in Connecticut; the rest give in from other states.
The median grant to a Connecticut organization was $5,000. Matching grant purposes and recipient names to cause areas, the most common were education & literacy (12,127 grants), children & youth (7,271 grants) and health & mental health (5,373 grants).
Ion Bank Foundation Inc (Naugatuck, CT) funded the most different Connecticut organizations: 509, through 1,189 grants with a typical size of $500.
The 15 grantmakers that funded the most Connecticut organizations
Ranked by the number of different Connecticut organizations each funded in its filings for tax years 2021–2025. Typical grant = median of those grants. Donor-advised fund sponsors, workplace-giving and matching-gift programs are left out.
| # | Funder | Grants to CT organizations | Organizations funded | Typical grant | Most recent tax year | Source |
|---|---|---|---|---|---|---|
| 1 | Ion Bank Foundation Inc Naugatuck, CT · EIN 06-1513293 | 1,189 | 509 | $500 | 2025 | IRS Form 990-PF |
| 2 | Hartford Foundation for Public Giving Hartford, CT · EIN 06-0699252 | 470 | 470 | $25,000 | 2024 | IRS Form 990 Schedule I |
| 3 | The Community Foundation for Greater New Haven New Haven, CT · EIN 06-6032106 | 433 | 433 | $16,250 | 2024 | IRS Form 990 Schedule I |
| 4 | Chelsea Groton Foundation Groton, CT · EIN 06-1520330 | 571 | 368 | $500 | 2025 | IRS Form 990-PF |
| 5 | Eversource Energy Foundation Inc Hartford, CT · EIN 06-1527290 | 440 | 362 | $2,000 | 2024 | IRS Form 990-PF |
| 6 | Fairfield County's Community Foundation Inc Norwalk, CT · EIN 06-1083893 | 518 | 361 | $20,826 | 2024 | IRS Form 990 Schedule I |
| 7 | Thomaston Savings Bank Foundation Inc Thomaston, CT · EIN 06-1483909 | 864 | 336 | $2,500 | 2025 | IRS Form 990-PF |
| 8 | The Connecticut Community Foundation Waterbury, CT · EIN 06-6038074 | 429 | 290 | $13,600 | 2025 | IRS Form 990 Schedule I |
| 9 | Northwest Community Bank Foundation Inc Winsted, CT · EIN 87-2625371 | 334 | 244 | $1,550 | 2025 | IRS Form 990-PF |
| 10 | Newalliance Foundation Inc New Haven, CT · EIN 56-2453619 | 427 | 239 | $5,000 | 2025 | IRS Form 990-PF |
| 11 | Liberty Bank Foundation Inc Middletown, CT · EIN 06-1479957 Gives only to preselected organizations, per its 990-PF | 361 | 234 | $10,000 | 2025 | IRS Form 990-PF |
| 12 | Post College Foundation Inc Waterbury, CT · EIN 06-1298333 Gives only to preselected organizations, per its 990-PF | 252 | 188 | $2,955 | 2024 | IRS Form 990-PF |
| 13 | American Savings Foundation Inc New Britain, CT · EIN 30-0308972 | 431 | 187 | $6,790 | 2025 | IRS Form 990-PF |
| 14 | Savings Bank of Danbury Foundation Inc Danbury, CT · EIN 11-3709335 | 340 | 183 | $2,500 | 2025 | IRS Form 990-PF |
| 15 | The Keiser Foundation Wilmington, DE · EIN 27-0858768 Gives only to preselected organizations, per its 990-PF | 192 | 181 | $2,492 | 2025 | IRS Form 990-PF |
Counties with the most grants
| County | Grants | Funders | Total listed |
|---|
County = where the recipient's ZIP code is.
Cause areas
Grants whose purpose or recipient name, as filed, contains keywords for each cause area. A grant can match more than one, and many grants (such as "general support") match none.
| Cause area | Grants matched | |
|---|---|---|
| Education & literacy | 12,127 | Top 5 funders |
| Children & youth | 7,271 | Top 5 funders |
| Health & mental health | 5,373 | Top 5 funders |
| Arts & culture | 4,489 | Top 5 funders |
| Environment & conservation | 2,349 | Top 5 funders |
| Food & hunger | 2,170 | Top 5 funders |
| Basic needs & anti-poverty | 1,481 | Top 5 funders |
| Animal welfare | 1,292 | Top 5 funders |
| Housing & homelessness | 1,133 | Top 5 funders |
| Older adults | 686 | Top 5 funders |
| Disability | 566 | Top 5 funders |
| Jobs & workforce | 384 | Top 5 funders |
| Immigrants & refugees | 287 | Top 5 funders |
Want the funders that fit your organization? Grant Prospect Report, $149
Tell us your mission, county and budget. You get at least 20 ranked funders that give in your service area, ranked by fit with your mission and budget, with each one's contact, deadlines and application rules as filed with the IRS, plus matching federal opportunities from Grants.gov. PDF by email within 2 business days of payment and a complete order form.
Order a Prospect Report for Connecticut ($149) See a full sampleSource: grant lists on IRS Form 990-PF (private foundations) and Form 990 Schedule I (grantmaking public charities) from the IRS e-file releases of 2024 to 2026, tax years 2021–2025, one filing per funder and tax year. Filings are often one to two years old, and a past grant doesn't mean a funder will accept your application or fund you. CivicVane is not affiliated with any funder listed.