| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Manufacturers and Traders Trust Company | Bank | 17 | $6.83B | 50.42% |
| 2 | Bank of America, National Association | Bank | 6 | $1.61B | 11.91% |
| 3 | JPMorgan Chase Bank, National Association | Bank | 9 | $1.51B | 11.17% |
| 4 | TD Bank, National Association | Bank | 5 | $703.1M | 5.19% |
| 5 | Sikorsky Financial Credit Union | Credit union | 6 | $640.2M* | 4.73% |
| 6 | Citibank, National Association | Bank | 2 | $348.0M | 2.57% |
| 7 | Wells Fargo Bank, National Association | Bank | 2 | $340.8M | 2.52% |
| 8 | Bankwell Bank | Bank | 2 | $279.4M | 2.06% |
| 9 | Fairfield County Bank | Bank | 3 | $277.4M | 2.05% |
| 10 | Newtown Savings Bank | Bank | 4 | $274.6M | 2.03% |
| 18 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $13.54B | 28 | 76 | Manufacturers and Traders Trust Company | 50.4% | 2,887 |
| 2024 | $11.23B | 15 | 57 | Manufacturers and Traders Trust Company | 48.7% | 2,836 |
| 2023 | $18.91B | 19 | 92 | Manufacturers and Traders Trust Company | 34.7% | 1,800 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.