| Business | Phone |
| Crystal Bay Homes Of Li Inc 4992 Expressway Dr, Ronkonkoma 11779 | (631) 580-1477 |
| P G Builders 4949 Express Dr N, Ronkonkoma 11779 | (631) 585-8833 |
| Sachem Home Sales 324 Hawkins Ave, Ronkonkoma 11779 | (631) 580-6000 |
| Whitford Homes 5014 Express Dr S, Ronkonkoma 11779 | (631) 471-7400 |