| Business | Phone |
| Guilford Primary School 31 High St, Guilford 4443 | (207) 876-4590 |
| Msad #4 Blaine Ave, Guilford 4443 | (207) 876-4263 |
| Msad#4 Superintendent Blaine Ave, Guilford 4443 | (207) 876-3444 |
| Msad4 15 Campus Dr, Guilford 4443 | (207) 876-4035 |
| North Woods Ways Elliotsville Rd, Guilford 4443 | (207) 997-3723 |
| Piscataquis Comm Middle School 25 Campus Dr, Guilford 4443 | (207) 876-4301 |
| Piscataquis Community High 9 Campus Dr, Guilford 4443 | (207) 876-4625 |