| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | ESL Federal Credit Union | Credit union | 25 | $5.61B* | 16.33% |
| 2 | Manufacturers and Traders Trust Company | Bank | 28 | $4.36B | 12.71% |
| 3 | The Canandaigua National Bank and Trust Company | Bank | 26 | $4.17B | 12.16% |
| 4 | KeyBank National Association | Bank | 25 | $3.37B | 9.82% |
| 5 | JPMorgan Chase Bank, National Association | Bank | 21 | $3.32B | 9.67% |
| 6 | Citizens Bank, National Association | Bank | 18 | $1.78B | 5.19% |
| 7 | Bank of America, National Association | Bank | 9 | $1.65B | 4.82% |
| 8 | The Lyons National Bank | Bank | 11 | $1.33B | 3.88% |
| 9 | Five Star Bank | Bank | 19 | $1.28B | 3.72% |
| 10 | Genesee Regional Bank | Bank | 3 | $979.6M | 2.85% |
| 34 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 | $34.34B | 44 | 286 | ESL Federal Credit Union | 16.3% | 882 |
| 2024 | $32.84B | 43 | 283 | ESL Federal Credit Union | 16.9% | 894 |
| 2023 | $33.12B | 43 | 290 | ESL Federal Credit Union | 18.0% | 900 |
| 2022 | $35.83B | 43 | 299 | ESL Federal Credit Union | 16.6% | 891 |
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.