| Business | Phone |
| Millbury Board Of Selectmen 127 Elm St, Millbury 1527 | (508) 865-4710 |
| Millbury Building Dept 127 Elm St, Millbury 1527 | (508) 865-0438 |
| Millbury Health Board 127 Elm St, Millbury 1527 | (508) 865-4721 |
| Millbury Historical Society 123 Elm St, Millbury 1527 | (508) 865-0855 |
| Millbury Planning Board 127 Elm St, Millbury 1527 | (508) 865-4754 |
| Millbury Sewer Commission 127 Elm St, Millbury 1527 | (508) 865-9143 |
| Millbury Sewerage Dept 127 Elm St, Millbury 1527 | (508) 865-3780 |
| Millbury Town Office 126 Elm St, Millbury 1527 | (508) 581-9800 |
| Massachusetts-American Water 24 Providence St, Millbury 1527 | (508) 865-0555 |
| Veterans Services 127 Elm St, Millbury 1527 | (508) 865-4743 |
| Warren Street Pump Station 9 Warren St, Millbury 1527 | (508) 865-4821 |
| Elmwood Street Pump Station Elmwood, Millbury 1527 | (508) 865-4817 |