| Business | Phone |
| Brookfield Realty 5136 Expressway Dr S, Holbrook 11741 | (631) 471-0881 |
| Cj Realty Works 761 Coates Ave # 9, Holbrook 11741 | (631) 467-8311 |
| Homeland Realty 4250 Veterans Memorial Hwy, Holbrook 11741 | (631) 981-6565 |
| Princeton Properties 411 Furrows Rd # C, Holbrook 11741 | (631) 467-3800 |
| J Russell Assoc 5110 Expressway Dr S, Holbrook 11741 | (631) 585-2400 |
| Realty 3000 Properties 3 Bishop Ln, Holbrook 11741 | (631) 567-7355 |
| Realty Connection Of Li Inc 226 Leona St, Holbrook 11741 | (631) 654-1777 |
| S & R Realty 18 Thunder Rd, Holbrook 11741 | (631) 472-5543 |
| Coldwell Banker Schaefer & Tafuro 480 Patchogue-Holbrook Rd, Holbrook 11741 | (631) 472-4300 |
| Wizard Realty 20 Peachtree Ct # 102, Holbrook 11741 | (631) 218-8356 |