| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | State Street Bank and Trust Company | Bank | 1 | $242.09B | 62.95% |
| 2 | Bank of America, National Association | Bank | 26 | $62.61B | 16.28% |
| 3 | Citizens Bank, National Association | Bank | 36 | $38.93B | 10.12% |
| 4 | Santander Bank, N.A. | Bank | 18 | $12.75B | 3.32% |
| 5 | Eastern Bank | Bank | 14 | $9.37B | 2.44% |
| 6 | Beacon Bank and Trust | Bank | 7 | $4.24B | 1.10% |
| 7 | TD Bank, National Association | Bank | 14 | $2.97B | 0.77% |
| 8 | Rockland Trust Company | Bank | 20 | $2.23B | 0.58% |
| 9 | JPMorgan Chase Bank, National Association | Bank | 19 | $1.40B | 0.36% |
| 10 | Webster Bank, National Association | Bank | 2 | $827.3M | 0.22% |
| 55 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 | $384.55B | 65 | 247 | State Street Bank and Trust Company | 63.0% | 4,350 |
| 2025 | $349.05B | 66 | 258 | State Street Bank and Trust Company | 59.5% | 4,021 |
| 2024 | $317.20B | 66 | 261 | State Street Bank and Trust Company | 56.6% | 3,731 |
| 2023 | $312.27B | 63 | 271 | State Street Bank and Trust Company | 52.8% | 3,375 |
| 2022 | $326.45B | 64 | 270 | State Street Bank and Trust Company | 51.0% | 3,161 |
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.