| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | ESL Federal Credit Union | Credit union | 29 | $5.33B* | 14.51% |
| 2 | Manufacturers and Traders Trust Company | Bank | 28 | $4.73B | 12.89% |
| 3 | The Canandaigua National Bank and Trust Company | Bank | 26 | $4.52B | 12.30% |
| 4 | KeyBank National Association | Bank | 25 | $3.65B | 9.93% |
| 5 | JPMorgan Chase Bank, National Association | Bank | 21 | $3.38B | 9.20% |
| 6 | Five Star Bank | Bank | 19 | $2.28B | 6.20% |
| 7 | Citizens Bank, National Association | Bank | 18 | $1.89B | 5.14% |
| 8 | Bank of America, National Association | Bank | 10 | $1.69B | 4.61% |
| 9 | The Lyons National Bank | Bank | 11 | $1.33B | 3.63% |
| 10 | Genesee Regional Bank | Bank | 3 | $1.08B | 2.93% |
| 35 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 |
|---|---|---|---|---|---|---|
| 2026 | $36.73B | 45 | 295 | ESL Federal Credit Union | 14.5% | 846 |
| 2025 | $34.47B | 45 | 290 | ESL Federal Credit Union | 16.3% | 875 |
| 2024 | $33.11B | 45 | 291 | ESL Federal Credit Union | 16.8% | 880 |
| 2023 | $33.46B | 45 | 298 | ESL Federal Credit Union | 17.9% | 886 |
| 2022 | $36.21B | 45 | 308 | ESL Federal Credit Union | 16.5% | 876 |
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.