| Business | Phone |
| Wainwright Bank & Trust Co 1 Church St, Watertown 2472 | (617) 926-7588 |
| Watertown Savings Bank 10 Bigelow St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 175 Arsenal St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 175 Watertown St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 321 Arsenal St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 45 Church St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 60 Main St, Watertown 2472 | (617) 000-1111 |
| Watertown Savings Bank 739 Main St, Watertown 2472 | (617) 000-1111 |
| Bank Of America 36 Main St, Watertown 2472 | (617) 000-1111 |
| Bank Of America 39 Main St, Watertown 2472 | (617) 000-1111 |
| Bank Of America 700 Pleasant St, Watertown 2472 | (617) 000-1111 |
| Bank Of America 75 Main St, Watertown 2472 | (617) 000-1111 |
| Belmont Savings Bank 53 Mount Auburn St, Watertown 2472 | (617) 926-1325 |
| Citizens Bank 631 Mount Auburn St, Watertown 2472 | (617) 926-8484 |
| Citizens Bank 700 Pleasant St, Watertown 2472 | (617) 923-1245 |
| Pioneer Bank 65 Main St, Watertown 2472 | (617) 926-7040 |