GivalgoGivalgo DiscoverBeta

Looking for a specific nonprofit?

Search 1.9 million IRS-registered organisations by name, EIN, sector, or location.

Start a search

Connecticut · NTEE T

Philanthropy & Grantmaking Nonprofits in Connecticut

Givalgo Discover indexes 50 active philanthropy & grantmaking nonprofits headquartered in Connecticut. The list below is sorted by reported revenue on the most recent Form 990 indexed for each organisation.

Top 50 by reported revenue

From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.

#OrganisationRevenue
1HARTFORD FOUNDATION FOR PUBLIC GIVING
EIN 06-0699252
$144.4M
2CHARITYVEST INC
EIN 81-2771871
$113.4M
3KNIGHTS OF COLUMBUS CHARITABLE FUND INC
EIN 81-5466677
$85.5M
4COMMUNITY FOUNDATION FOR GREATER NEW HAVEN
EIN 06-6032106
$55.7M
5NATIONAL CHARITABLE ENDOWMENT INC
EIN 82-2958346
$55.2M
6GREATER HARTFORD COMMUNITY FOUNDATION INC
EIN 42-1684133
$40.7M
7UNITED WAY OF CONNECTICUT
EIN 06-1084194
$36.9M
8DELOITTE FOUNDATION
EIN 13-6400341
$28.0M
9CONNECTICUT COMMUNITY FOUNDATION INC
EIN 06-6038074
$26.1M
10FAIRFIELD COUNTYS COMMUNITY FOUNDATION INC
EIN 06-1083893
$21.3M
11PERSON TO PERSON INC
EIN 06-1422248
$17.5M
12FOUNDATIONS IN EDUCATION INC
EIN 47-5130557
$17.4M
13UNITED WAY OF GREATER NEW HAVEN INC
EIN 06-0646761
$14.9M
14JEWISH COMMUNITY FOUNDATION OF GREATER HARTFORD INC
EIN 06-1372107
$14.2M
15ITHURIEL FUND
EIN 87-3985820
$13.8M
16COMMUNITY FOUNDATION OF EASTERN CONNECTICUT
EIN 06-1080097
$13.1M
17JEWISH FEDERATION OF GREATER HARTFORD
EIN 06-0655482
$11.9M
18NORTH CENTRAL AREA AGENCY ON AGING INC
EIN 22-3059029
$11.2M
19UNITED WAY INC DBA UNITED WAY OF CENTRAL & NORTHEASTERN CT
EIN 06-0646653
$10.7M
20NEW CANAAN COMMUNITY FOUNDATION INC
EIN 06-0970466
$9.8M
21UNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC
EIN 06-0646577
$8.0M
22NORTHWEST CONNECTICUT COMMUNITY FOUNDATION INC
EIN 06-1565733
$7.6M
23LYFORD CAY FOUNDATION INC
EIN 23-7025275
$7.0M
24YHB CHARITABLE ENDOWMENT INC
EIN 26-2552404
$6.8M
25HOMETOWN FOUNDATION INC
EIN 20-0847683
$6.4M
26MAIN STREET COMMUNITY FOUNDATION
EIN 06-1433299
$5.7M
27COMMUNITY FOUNDATION OF MIDDLESEX COUNTY INC
EIN 06-1477711
$5.5M
28MARIA SEYMOUR BROOKER MEMORIAL INC
EIN 06-0646712
$5.3M
29NFA FOUNDATION INC
EIN 22-2678033
$4.6M
30MONKS OF NORCIA FOUNDATION
EIN 02-0514077
$4.3M
31VALLEY COMMUNITY FOUNDATION INC
EIN 84-1637102
$3.3M
32ARRL FOUNDATION INC
EIN 23-7325472
$3.2M
33PINK AID INC
EIN 47-1031835
$3.2M
34KLEIN MEMORIAL AUDITORIUM FOUNDATION INC
EIN 06-1474233
$3.2M
35KNIGHTS OF COLUMBUS CHARITIES USA INC
EIN 41-2140273
$3.1M
36ALLIANCE FOR CANCER GENE THERAPY INC
EIN 06-1619523
$3.1M
37AMERICAN FRIENDS OF LE KORSA INC
EIN 20-3279061
$3.0M
385C CORPORATION
EIN 20-0763050
$2.9M
39FRIENDS OF THE CORNELL LAB OF ORNITHOLOGY INC
EIN 46-1979945
$2.8M
40JOHN T AND JANE A WIEDERHOLD FOUNDATION
EIN 06-1830842
$2.8M
41EASTON COMMUNITY CENTER INC
EIN 06-1489872
$2.2M
42HOSPITAL FOR SPECIAL CARE FOUNDATION INC
EIN 06-1534092
$2.2M
43BIRMINGHAM GROUP REALTY INC
EIN 20-8900251
$2.1M
44ELECTRIC BOAT EMPLOYEES COMMUNITY SERVICE ASSOCIATION
EIN 06-6068894
$1.9M
45STRYKE FOUNDATION FOR RARE DISEASE RESEARCH AND TREATMENT
EIN 93-1503591
$1.8M
46ALLIED COMMUNITY SERVICES INC
EIN 06-1538355
$1.7M
47CATHERINE VIOLET HUBBARD FOUNDATION INC
EIN 46-1967347
$1.7M
48CONNECTICUT COUNCIL FOR PHILANTHROPY
EIN 23-7024016
$1.6M
49SARAH FOUNDATION INC
EIN 06-1281792
$1.6M
50UNITED COMPASSION FUND INC
EIN 47-1026269
$1.5M

Frequently asked questions about philanthropy & grantmaking nonprofits in Connecticut

Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.

How many philanthropy & grantmaking nonprofits operate in Connecticut?
Every IRS-registered philanthropy & grantmaking nonprofit in Connecticut appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.
What's the largest philanthropy & grantmaking nonprofit in Connecticut?
The single largest philanthropy & grantmaking nonprofit in Connecticut by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.
How do I vet a philanthropy & grantmaking nonprofit in Connecticut before donating?
Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.
Are donations to Connecticut philanthropy & grantmaking nonprofits tax-deductible?
Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed philanthropy & grantmaking nonprofit in Connecticut are tax-deductible at the federal level; Connecticut state tax treatment may differ.
Where do philanthropy & grantmaking nonprofits in Connecticut file their Form 990?
All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. Connecticut state charity registration is a separate state-level requirement.