| Business | Phone |
| Merrimac Elementary School 1090 Broadway Ave, Holbrook 11741 | (631) 244-5670 |
| Nokomis Elementary School 151 Holbrook Rd, Holbrook 11741 | (631) 471-1840 |
| Eastern Suffolk Boces 15 Andrea Rd, Holbrook 11741 | (631) 472-6455 |
| Grundy Avenue Elementary Sch 950 Grundy Ave, Holbrook 11741 | (631) 471-1820 |
| Sachem Central School District 245 Union Ave, Holbrook 11741 | (631) 471-1300 |
| Seneca Junior High School 850 Main St, Holbrook 11741 | (631) 471-1850 |
| Seneca Junior High School 850 Patchogue Holbrook Rd, Holbrook 11741 | (631) 467-8448 |