| Business | Phone |
| Brockton Assessor 45 School St, Brockton 2301 | (508) 580-7194 |
| Brockton Auditors Dept 45 School St, Brockton 2301 | (508) 580-7153 |
| Brockton City Finance Dept 45 School St, Brockton 2301 | (508) 580-7165 |
| Brockton Tax Collector 45 School St, Brockton 2301 | (508) 580-7130 |
| Brockton Treasurer 45 School St, Brockton 2301 | (508) 580-7159 |