Top-Rated Nonprofits in Connecticut 2026
Connecticut has 16 nonprofits with $17.6B in combined revenue. The top-rated organization is University Of New Haven with an Efficiency Score of 86/100.
Connecticut has 16 nonprofits in the IRS Form 990 dataset ranked here by efficiency score. The LakeQuality nonprofit efficiency rubric combines program-spending ratio (50%), revenue growth consistency (20%), fund reserves (20%), and CEO compensation ratio (10%) into a 0-100 composite.
Reading the ranking: top of the list typically combines strong program-spending discipline (the highest-weighted factor) with stable multi-year revenue and reasonable executive compensation. Large hospital and university systems often appear near the top in any state — their scale lets them keep program ratios high while still investing in infrastructure. Each nonprofit links to its full Form 990 profile. For donors trying to choose between organizations, the efficiency grade is a useful triage — but the underlying program-spending ratio, the multi-year revenue trend, and the comp ratio matter more than the composite letter on any individual decision.
Top 16 Nonprofits in Connecticut
| # | Organization | Category | Revenue | CEO Pay | Score |
|---|---|---|---|---|---|
| 1 | University Of New Haven | Education | $344.7M | $0 | A (86) |
| 2 | Yale New Haven Hospital | Health | $4.2B | $0 | A (84) |
| 3 | Hartford Hospital | Health | $2.6B | $0 | A (83) |
| 4 | University Of Hartford | Education | $269.3M | $0 | A (82) |
| 5 | Achievement First Brooklyn Charter Schools | Education | $181.5M | $0 | B (79) |
| 6 | Sea Research Foundation Inc | Environment & Animals | $32.6M | $0 | B (79) |
| 7 | Area Cooperative Educational Services | Education | $128.4M | $0 | B (77) |
| 8 | Sacred Heart University | Education | $509.0M | $0 | B (76) |
| 9 | Boehringer Ingelheim Cares Foundation Inc | Education | $1.3B | $0 | B (73) |
| 10 | Quinnipiac University | Education | $541.8M | $0 | B (73) |
| 11 | Trinity College | Education | $240.4M | $0 | B (73) |
| 12 | Connecticut College | Education | $182.1M | $0 | B (73) |
| 13 | Horace Bushnell Memorial Hall Corporation | Arts, Culture & Humanities | $26.1M | $0 | B (73) |
| 14 | Fairfield University | Education | $424.5M | $0 | B (72) |
| 15 | Yale University | Education | $6.3B | $0 | B (68) |
| 16 | Wesleyan University | Education | $289.4M | $0 | B (68) |
Nonprofit financial data for Connecticut is sourced from IRS Form 990 filings, which all tax-exempt organizations must file annually.
Frequently Asked Questions
University Of New Haven is the top-rated nonprofit in Connecticut with an Efficiency Score of 86/100 (Grade A) and $344.7M in annual revenue.
Connecticut has 16 nonprofits in our database with a combined $17.6B in total revenue.
The Efficiency Score (0-100, A-F) measures nonprofit effectiveness based on program expense ratio (50%), revenue growth consistency (20%), fund reserves (20%), and CEO compensation ratio (10%). Higher scores indicate more efficient organizations.
Efficiency Score: program expense ratio (50%), revenue growth consistency (20%), fund reserves (20%), CEO compensation ratio (10%).