| Organization | City | Revenue |
|---|
| Yale University | New Haven | $8,452,768,034 |
| Boehringer Ingelheim Cares Foundation Inc | Ridgefield | $1,345,230,626 |
| Quinnipiac University | Hamden | $658,577,859 |
| Sacred Heart University | Fairfield | $575,678,695 |
| Fairfield University | Fairfield | $558,598,313 |
| Wesleyan University | Middletown | $443,190,970 |
| University of New Haven | West Haven | $392,215,175 |
| University of Hartford | West Hartford | $305,633,140 |
| Trinity College | Hartford | $281,005,704 |
| Achievement First Brooklyn Charter Schools | New Haven | $187,217,445 |
| Connecticut College | New London | $185,831,000 |
| Greenwich Country Day School Inc | Greenwich | $139,744,713 |
| University of Connecticut Foundation Incorporated | Storrs | $139,327,144 |
| The University of Bridgeport Inc | East Hartford | $127,552,067 |
| Hotchkiss School | Lakeville | $126,383,221 |
| Taft School Corporation | Watertown | $122,752,450 |
| University of Saint Joseph | West Hartford | $103,325,035 |
| Choate Rosemary Hall Foundation Incorporated | Wallingford | $99,339,717 |
| Brunswick School Inc | Greenwich | $95,285,151 |
| Loomis Institute | Windsor | $80,498,468 |
| Achievement First Rhode Island | New Haven | $70,976,598 |
| Goodwin University Inc | East Hartford | $62,415,063 |
| Albertus Magnus College | New Haven | $62,216,973 |
| Greenwich Academy Inc | Greenwich | $60,992,552 |
| Kent School Corporation | Kent | $56,703,992 |
| Greens Farms Academy Inc | Greens Farms | $53,717,683 |
| Avon Old Farms School Inc | Avon | $53,223,165 |
| Miss Porters School Inc | Farmington | $53,059,482 |
| Salisbury School Inc | Salisbury | $49,768,685 |
| King School Incorporated | Stamford | $49,691,024 |
| American School for the Deaf | West Hartford | $48,480,100 |
| Trustees of Westminster School Inc | Simsbury | $46,733,878 |
| Hopkins School Incorporated | New Haven | $44,088,664 |
| Norwich Free Academy | Norwich | $43,634,151 |
| Suffield Academy | Suffield | $43,335,195 |
| New Canaan Country School Inc | New Canaan | $43,304,417 |
| St Lukes Foundation Inc | New Canaan | $38,526,979 |
| The Frederick Gunn School Incorporated | Washington | $36,703,517 |
| Canterbury School Incorporated | New Milford | $32,131,786 |
| Pomfret School Incorporated | Pomfret | $32,056,359 |
| Ethel Walker School Inc | Simsbury | $31,349,665 |
| Kingswood Oxford School Inc | West Hartford | $30,265,142 |
| Board of Trustees of the Sheffield Scientific School | New Haven | $29,252,563 |