Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| State Street Bank and Trust Company | Boston, MA | 01-01-1792 | $293,238,000 | BK |
| Eastern Bank | Boston, MA | 10-19-1989 | $21,118,604 | BK |
| Rockland Trust Company | Rockland, MA | 09-10-1907 | $19,352,632 | BK |
| Berkshire Bank | Pittsfield, MA | 02-06-1846 | $12,425,425 | BK |
| DIGITAL | MARLBOROUGH, MA | 01-01-1979 | $12,084,942 | CU |
| Salem Five Cents Savings Bank | Salem, MA | 03-09-1855 | $7,291,012 | BK |
| Cambridge Savings Bank | Cambridge, MA | 04-02-1834 | $6,868,896 | BK |
| Middlesex Savings Bank | Natick, MA | 03-05-1835 | $6,309,403 | BK |
| Brookline Bank | Brookline, MA | 01-01-1871 | $6,187,285 | BK |
| HarborOne Bank | Brockton, MA | 07-01-2013 | $5,671,127 | BK |
| The Cape Cod Five Cents Savings Bank | Hyannis, MA | 03-16-1855 | $5,545,468 | BK |
| Cambridge Trust Company | Cambridge, MA | 01-01-1890 | $5,417,297 | BK |
| Institution for Savings in Newburyport and Its Vicinity | Newburyport, MA | 01-01-1820 | $5,041,251 | BK |
| Hingham Institution for Savings | Hingham, MA | 04-02-1834 | $4,484,145 | BK |
| Enterprise Bank and Trust Company | Lowell, MA | 01-03-1989 | $4,466,034 | BK |