| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Santander Bank, N.A. | Bank | 16 | $13.28B | 24.54% |
| 2 | Bank of America, National Association | Bank | 19 | $8.34B | 15.42% |
| 3 | Citizens Bank, National Association | Bank | 26 | $5.20B | 9.61% |
| 4 | Needham Bank | Bank | 8 | $4.82B | 8.90% |
| 5 | Rockland Trust Company | Bank | 19 | $2.47B | 4.56% |
| 6 | Eastern Bank | Bank | 16 | $2.21B | 4.09% |
| 7 | Dedham Institution for Savings | Bank | 13 | $1.95B | 3.60% |
| 8 | South Shore Bank | Bank | 8 | $1.82B | 3.36% |
| 9 | Beacon Bank and Trust | Bank | 9 | $1.41B | 2.60% |
| 10 | TD Bank, National Association | Bank | 12 | $1.34B | 2.48% |
| 47 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 | $54.12B | 57 | 252 | Santander Bank, N.A. | 24.5% | 1,106 |
| 2025 | $45.02B | 58 | 251 | Bank of America, National Association | 17.0% | 831 |
| 2024 | $38.36B | 59 | 248 | Bank of America, National Association | 19.3% | 760 |
| 2023 | $39.52B | 59 | 259 | Bank of America, National Association | 20.7% | 778 |
| 2022 | $41.96B | 61 | 263 | Bank of America, National Association | 21.7% | 806 |
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.