| Business | Phone |
| A W Cox Elementary School 143 Three Mile Crse, Guilford 6437 | (203) 453-5291 |
| Abraham Baldwin Middle School 68 Bullard Dr, Guilford 6437 | (203) 457-0222 |
| Superintendent Of Schools 701 New England Rd, Guilford 6437 | (203) 453-8202 |
| Calvin Leete School 280 S Union St, Guilford 6437 | (203) 453-2726 |
| Community Nursery School Inc 262 Sachem Head Rd, Guilford 6437 | (203) 453-5500 |
| E C Adams Middle School 233 Church St, Guilford 6437 | (203) 453-2755 |
| North Guilford Nursery School 169 Ledge Hill Rd, Guilford 6437 | (203) 457-0808 |
| Guilford Adult Education 605 New England Rd, Guilford 6437 | (203) 453-0530 |
| Guilford After School Day Care 280 S Union St, Guilford 6437 | (203) 453-0045 |
| Guilford Day Care Ctr 53 Park St, Guilford 6437 | (203) 453-8050 |
| Guilford High School 605 New England Rd, Guilford 6437 | (203) 453-2741 |
| Guilford Lakes School 40 Maupas Rd, Guilford 6437 | (203) 453-5201 |
| Guilford School District 55 Park St, Guilford 6437 | (203) 453-8200 |
| Guilford Special Education 280 S Union St, Guilford 6437 | (203) 453-0128 |
| Melissa Jones School 181 Ledge Hill Rd, Guilford 6437 | (203) 457-0773 |