| Business | Phone |
| Grant Management Svc 158 Stratford N, Roslyn Heights 11577 | (516) 625-9335 |
| Realty Management 99 Mineola Ave, Roslyn Heights 11577 | (516) 484-1234 |
| Roslyn Gardens Tenants Corp 225 Warner Ave, Roslyn Heights 11577 | (516) 621-3121 |
| Majestic Property Management 70 Glen Cove Rd, Roslyn Heights 11577 | (516) 484-5880 |
| Nai Long Island Realty 1 Expressway Plz # 212, Roslyn Heights 11577 | (516) 746-1300 |