| Business | Phone |
| 755 Waverly Assoc 755 Waverly Ave, Holtsville 11742 | (631) 447-3800 |
| I & S Properties 1100 Waverly Ave, Holtsville 11742 | (631) 758-3014 |
| R D Management Co 177 Morris Ave, Holtsville 11742 | (631) 475-4130 |
| Realty 3000 Properties 10 Atlantic St, Holtsville 11742 | (631) 716-8700 |
| L B Equities Realty 811 Waverly Ave # D, Holtsville 11742 | (631) 207-5817 |
| Victorian Gardens 358 Plad Blvd, Holtsville 11742 | (631) 207-0880 |