| Business | Phone |
| Cove Point Realty 17 W Main St, Oyster Bay 11771 | (516) 624-7600 |
| Cozy Real Estate Inc 35 Townsend Sq, Oyster Bay 11771 | (516) 624-8447 |
| Northern Bay Management 1 Commander Sq, Oyster Bay 11771 | (516) 922-8000 |
| Oyster Bay Real Estate Co 32 E Main St, Oyster Bay 11771 | (516) 922-7344 |
| Gio Marketing Intl 26 Sherwood Gate, Oyster Bay 11771 | (516) 624-0174 |
| Harbortown Real Estate 109 Pine Hollow Rd, Oyster Bay 11771 | (516) 624-2000 |
| Landmark Realtors 10 Audrey Ave # A, Oyster Bay 11771 | (516) 922-5454 |
| Seven Hills Management Inc 303 Lawn Ln, Oyster Bay 11771 | (516) 922-2911 |
| Sherlock Holmes Realty 34 Audrey Ave, Oyster Bay 11771 | (516) 922-2002 |
| Robert Thek 49 Audrey Ave, Oyster Bay 11771 | (516) 922-1700 |