| Business | Phone |
| Brewster Registrar Of Voters 2198 Main St, Brewster 2631 | (508) 896-4506 |
| Brewster Swamp Shop 201 Run Hill Rd, Brewster 2631 | (508) 896-4523 |
| Brewster Transfer Station 192 Run Hill Rd, Brewster 2631 | (508) 896-9665 |
| Brewster Treasurer/Collector 2198 Main St, Brewster 2631 | (508) 896-4502 |