Wealthiest by Assets Nonprofits in Connecticut

Wealthiest by Assets nonprofit rankings for Connecticut. 100 organizations with $15.2B in combined revenue. Updated 2026 IRS 990 data.

100Organizations
$15.2BTotal Revenue
$30.8BTotal Assets
80/100Avg Score

Wealthiest by Assets Rankings for Connecticut (100)

#OrganizationCityRevenueAssetsScore
1 Common Fund For Non Profit Organizations Wilton $3.0B $3.6B
2 Yale New Haven Health Services Corporation New Haven $1.4B $3.5B 85/100
3 Hartford Health Care Corporation Hartford $748.1M $3.4B 75/100
4 American Eagle Financial Credit Union Incorporated East Hartford $127.9M $2.6B
5 Hartford Healthcare Endowment Llc Hartford $92.6M $2.2B
6 Dalio Foundation Inc Westport $1.0B $1.7B
7 Sikorsky Financial Credit Union Inc Stratford $69.7M $1.3B
8 William W Backus Hospital Norwich $589.5M $990.1M
9 Western Connecticut Health Network Inc Danbury $21.3M $703.3M 75/100
10 Cil Realty Inc Hartford $12.0M $584.7M
11 Jane And Daniel Och Family Foundation Greenwich $45.5M $570.1M
12 Western Connecticut Health Network Investments Llc Danbury $193.0M $381.6M
13 F B Heron Foundation New Haven $78.4M $349.3M 90/100
14 Boehringer Ingelheim Cares Foundation Inc Ridgefield $1.7B $251.9M
15 Gruber Foundation New Haven $6.7M $230.3M
16 Winton Industrial Center Inc Hartford $11.1M $221.1M
17 Belgian American Educational Foundation Inc New Haven $60.6M $218.7M 95/100
18 Low Road Foundation Sharon $87.8M $217.1M 65/100
19 Seedlings Foundation Branford $96.6M $215.4M
20 The Mercy Hospital Inc Hartford $337.4M $205.3M
21 Connecticut Childrens Foundation Inc Hartford $38.4M $201.5M 85/100
22 Cardinal Bay Inc Shelton $44.2M $199.8M
23 Leon Lowenstein Foundation Inc Madison $13.2M $199.5M 95/100
24 Danbury Hospital & New Milford Hospital Foundation Inc Danbury $25.1M $190.4M
25 Midnight Sun Inc Hartford $16.0M $189.8M
26 Mcchord Foundation Norwalk $88.0M $182.0M
27 Achievement First Brooklyn Charter Schools New Haven $191.7M $166.1M 90/100
28 Norwalk Hospital Foundation Inc Norwalk $21.9M $164.2M 75/100
29 Financial Accounting Foundation Norwalk $86.1M $161.1M
30 Hartford Healthcare Medical Group Specialists Pllc Wethersfield $695.3M $158.7M
31 Hartford Healthcare Medical Group Inc Wethersfield $223.9M $147.7M
32 The Childrens Investment Fund Foundation West Hartford $22.4M $147.5M
33 Stamford Health Inc Stamford $21.2M $144.6M 75/100
34 The Grossman Family Foundation Cos Cob $61.8M $142.5M
35 Bridgeport Hospital Foundation Inc Bridgeport $21.9M $138.9M 85/100
36 Church Home Of Hartford Bloomfield $45.3M $137.3M
37 St Lukes Foundation Inc New Canaan $45.6M $136.7M
38 Friends Of The Cornell Lab Of Ornithology Inc Stamford $12.1M $130.8M
39 Melville Charitable Trust Inc New Haven $59.5M $130.7M
40 Grace Farms Foundation New Canaan $18.8M $124.7M
41 Hampshire Foundation Inc Hartford $13.5M $122.1M
42 William Caspar Graustein Memorial Fund Hamden $12.1M $121.2M
43 Ccsu Foundation Inc New Britain $42.3M $110.1M
44 Mclean Affiliates Inc Simsbury $39.1M $103.5M
45 Raytheon Benefit Tr For Active And Retired Empl In Represented Units Farmington $9.9M $100.8M
46 Midnight Sun Inc Iv Hartford $2.8M $98.4M
47 American Savings Foundation Inc New Britain $23.7M $98.1M
48 Covenant Living Of Cromwell Inc Cromwell $29.9M $97.7M 65/100
49 Royce Family Fund Inc Greenwich $4.7M $97.4M 92/100
50 Bruce Museum Inc Greenwich $18.8M $96.2M
51 Knights Of Columbus Charities Usa Inc New Haven $20.1M $93.4M
52 Achievement First Rhode Island New Haven $65.4M $92.9M
53 Johnson Memorial Hospital Inc Hartford $74.8M $91.1M
54 Brothers Brook Foundation Stamford $27.5M $90.9M
55 Westwind Foundation Norwalk $6.3M $87.9M
56 Lawrence And Memorial Corporation New London $5.0M $86.8M 75/100
57 Nfa Foundation Inc Norwich $26.9M $85.8M 75/100
58 Ll Global Inc Windsor $87.4M $84.1M
59 S & L Marx Foundation Inc Greenwich $32.3M $83.1M 85/100
60 Jewish Foundation Of Greater New Haven Inc Woodbridge $29.3M $82.0M
61 1772 Foundation Inc Pomfret Ctr $54.6M $81.1M 85/100
62 Planned Parenthood Of Southern New England Inc New Haven $44.7M $81.0M
63 Martino Family Foundation New Canaan $5.3M $79.7M
64 Stamford Health Medical Group Inc Stamford $252.1M $79.6M
65 330 North Brand Inc Hartford $8.6M $79.1M 85/100
66 The Emily Hall Tremaine Foundation Inc Tolland $551K $78.8M 85/100
67 Livewell Alliance Inc Plantsville $15.2M $74.9M 75/100
68 Michael And Carol Lowenstein Foundation Inc Greenwich $34.1M $73.8M 90/100
69 Cw Group Inc New Britain $13.4M $71.1M 45/100
70 Peoples United Community Foundation Bridgeport $13.6M $64.8M 92/100
71 Raytheon Co Employee Disability Trust Farmington $16.2M $64.1M 95/100
72 Hillside Cemetery Assoc Torrington $10.2M $63.8M
73 Chrysalis Center Real Estate Corporation Hartford $3.2M $63.3M 85/100
74 Stamford Land Conservation Trust Inc Stamford $3.3M $60.9M
75 Foundations In Education Inc Shelton $22.7M $59.8M
76 Midnight Sun Inc Iii Hartford $2.1M $59.1M
77 Southern Connecticut State University Foundation Inc New Haven $10.9M $58.7M
78 Westford Valley Marketplace Inc Hartford $4.5M $57.5M
79 Goodwill Industries Of Southern New England Inc North Haven $43.6M $57.2M
80 Foerster Bernstein Foundation Norwalk $5.2M $56.0M
81 Point72 Employee Directed Giving Foundation Stamford $4.4M $55.3M
82 Innis Arden Golf Club Inc Old Greenwich $19.3M $54.9M
83 Citibank Na Employees Association Stamford $2.4B $54.0M 30/100
84 Mountain Grove Cemetery Association Bridgeport $4.9M $53.9M
85 Deloitte Foundation Stamford $28.0M $51.4M 95/100
86 Harold W Mcgraw Jr Family Foundation Inc Stamford $16.0M $51.0M
87 St Vincents Foundation Inc Bridgeport $10.5M $50.0M 65/100
88 John Paul Ii Shrine And Institute Inc New Haven $12.2M $48.7M
89 Boys And Girls Village Inc Milford $30.5M $48.1M 85/100
90 Greenwich Country Club Greenwich $21.8M $48.0M
91 Hd Holding Corporation Manchester $21.4M $47.1M 65/100
92 Midnight Sun Inc Viii Hartford $1.1M $46.3M
93 Maximilian E & Marion O Hoffman Foundation Inc West Hartford $4.4M $45.8M 75/100
94 Bok Fam Foundation Tr Canaan $11.8M $45.6M
95 Savin Rock Communities Inc West Haven $6.9M $44.7M
96 Dahesh Museum Of Art Greenwich $4.6M $44.2M 95/100
97 Maurice Sendak Foundation Inc Ridgefield $6.4M $42.1M 85/100
98 Ct Energy Efficiency Finance Company Wallingford $3.6M $40.8M
99 Carey Family Foundation Darien $1.8M $40.8M 85/100
100 Mutual Housing Association Of South Central Connecticut Inc New Haven $5.4M $39.6M

Frequently Asked Questions

What are the wealthiest by assets nonprofits in Connecticut?

There are 100 nonprofits in Connecticut ranked by wealthiest by assets, with $15.2B in combined annual revenue.

How are Connecticut nonprofit rankings determined?

Rankings are based on the latest IRS 990 filing data. Nonprofits with the largest asset holdings. Each organization is ranked relative to other Connecticut nonprofits.

How do Connecticut nonprofits compare nationally?

Connecticut has 100 organizations in this ranking category. View the national wealthiest by assets rankings for broader context.

Where can I find more nonprofit data for Connecticut?

Visit our Connecticut state page for a complete overview of all nonprofits, or explore specific categories and cities within Connecticut.

Other Rankings for Connecticut

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