| American Eagle Financial Credit Union | East Hartford, CT | $2.76B | 167,531 |
| Connecticut State Employees Credit Union | Hartford, CT | $2.70B | 69,685 |
| Charter Oak Credit Union | Waterford, CT | $1.70B | 86,156 |
| Sikorsky Financial Credit Union | Stratford, CT | $1.44B | 67,020 |
| Connex Credit Union | North Haven, CT | $1.04B | 68,675 |
| Nutmeg State Financial Credit Union | Rocky Hill, CT | $885.2M | 66,654 |
| Coreplus Credit Union | Norwich, CT | $671.3M | 50,669 |
| Dutch Point Credit Union | Wethersfield, CT | $560.0M | 24,456 |
| Mutual Security Credit Union | Shelton, CT | $379.1M | 26,354 |
| Waterbury Connecticut Teachers Credit Union | Waterbury, CT | $360.9M | 22,061 |
| 360 Credit Union | Windsor Locks, CT | $324.1M | 18,826 |
| General Electric Employees Credit Union | Milford, CT | $288.0M | 21,317 |
| Ellafi Credit Union | Middletown, CT | $177.8M | 9,893 |
| Achieve Financial Credit Union | Berlin, CT | $177.6M | 15,998 |
| Fd Community Credit Union | Waterbury, CT | $159.9M | 13,506 |
| Hartford Credit Union | Hartford, CT | $156.4M | 16,205 |
| United Business & Industry Credit Union | Plainville, CT | $143.4M | 11,241 |
| Finex Credit Union | East Hartford, CT | $134.2M | 16,083 |
| Sound Credit Union | Norwalk, CT | $116.1M | 8,361 |
| Membersfirst Ct Credit Union | Meriden, CT | $107.5M | 6,096 |
| America's First Network Credit Union | East Hartford, CT | $105.8M | 9,480 |
| Torrington Municipal and Teachers Credit Union | Torrington, CT | $91.0M | 10,858 |
| Riverbank Credit Union | Windsor Locks, CT | $88.0M | 4,268 |
| State Police Credit Union Inc. | Meriden, CT | $83.4M | 2,818 |
| Albright Credit Union | Bethel, CT | $75.2M | 5,590 |
| Tobacco Valley Teachers Credit Union | Enfield, CT | $71.3M | 3,194 |
| Franklin Trust Credit Union | Hartford, CT | $70.6M | 8,916 |
| Cornerstone Credit Union | Fairfield, CT | $66.7M | 4,421 |
| Unity Financial Credit Union | New Haven, CT | $65.4M | 8,186 |
| Pitney Bowes Employees Credit Union | Shelton, CT | $58.5M | 3,352 |
| Northwest Hills Credit Union | Torrington, CT | $54.8M | 3,675 |
| Skyline Financial Credit Union | Waterbury, CT | $45.9M | 4,157 |
| Police Credit Union of Connecticut | Hartford, CT | $45.9M | 2,921 |
| Enfield Community Credit Union | Enfield, CT | $45.4M | 3,486 |
| Members Credit Union | Stamford, CT | $43.9M | 4,056 |
| Manchester Municipal Credit Union | Manchester, CT | $39.6M | 2,224 |
| Lawrence Memorial Hospital Employee Credit Union | New London, CT | $38.3M | 2,922 |
| New Haven County Credit Union | North Haven, CT | $35.1M | 3,250 |
| Ct Firefighters Credit Union | Hartford, CT | $34.3M | 2,161 |
| Metropolitan District Employees Credit Union | Hartford, CT | $34.2M | 1,849 |
| Greenwich Municipal Employees Credit Union | Greenwich, CT | $32.7M | 2,089 |
| Norwalk Hospital Credit Union | Norwalk, CT | $32.7M | 2,087 |
| Gha Credit Union | Greenwich, CT | $30.9M | 2,385 |
| Bridgeport Police Credit Union | Bridgeport, CT | $29.5M | 2,181 |
| Stamford Healthcare Credit Union | Stamford, CT | $23.8M | 2,172 |
| St. Vincent's Medical Center Credit Union | Bridgeport, CT | $21.9M | 1,633 |
| Community Healthcare Credit Union | Manchester, CT | $18.2M | 2,386 |
| Community CU of New Milford, Inc. | New Milford, CT | $16.0M | 1,911 |
| Connecticut Labor Dept Credit Union | Wethersfield, CT | $14.4M | 1,205 |
| Connecticut Postal Credit Union | New Britain, CT | $12.9M | 1,370 |
| Asa Credit Union | Bloomfield, CT | $12.3M | 1,069 |
| Waterbury Postal Employees Credit Union | Waterbury, CT | $10.7M | 889 |
| New Haven Teachers Credit Union | New Haven, CT | $10.6M | 1,047 |
| Greater Waterbury Healthcare Credit Union | Waterbury, CT | $9.4M | 999 |
| New Haven Firefighters Credit Union | New Haven, CT | $6.0M | 706 |
| Regional Water Authority Employees Credit Union | New Haven, CT | $5.7M | 466 |
| The New Haven Police and Municipal Credit Union | New Haven, CT | $5.6M | 856 |
| Science Park Credit Union | New Haven, CT | $3.7M | 591 |
| Bridgeport Post Office Credit Union | Bridgeport, CT | $3.4M | 484 |
| Trumbull Credit Union | Trumbull, CT | $3.0M | 422 |
| Kief Protective Mutual Benefit Ass. Credit Union | Bloomfield, CT | $603K | 105 |
| Meriden Postal Employees Credit Union | Meriden, CT | $350K | 51 |
| First Baptist Church (stratford) Credit Union | Stratford, CT | $340K | 214 |
| East End Baptist Tabernacle Credit Union | Bridgeport, CT | $132K | 197 |