| Business | Phone |
| Allan M Schneider & Assoc Inc 155 Main St, Sag Harbor 11963 | (631) 725-1500 |
| Brown Harris Stevens 76 Main St, Sag Harbor 11963 | (631) 725-2250 |
| Meridian Group 84 Main St, Sag Harbor 11963 | (631) 725-1818 |
| Cook Pony Farm Real Estate Inc 98 Main St, Sag Harbor 11963 | (631) 725-2471 |
| Corcoran Group 84 Main St, Sag Harbor 11963 | (631) 725-6900 |
| Corcoran Group 96 Main St, Sag Harbor 11963 | (631) 725-5252 |
| Elnora Inc Sag Harbor 11963 | (631) 725-2180 |
| Noyac Park Realty 3955 Noyac Rd, Sag Harbor 11963 | (631) 725-0999 |
| Overseas Connection Long Wharfor Promenade, Sag Harbor 11963 | (631) 725-9308 |
| Harbor Cove Realty Inc 16 Main St, Sag Harbor 11963 | (631) 725-4333 |
| Harpoon Realty Ltd Llc 11 Madison St, Sag Harbor 11963 | (631) 725-2252 |
| Ica Realty Corp 40 Pheasant Rd, Sag Harbor 11963 | (631) 725-4300 |
| Prudential Long Island Realty 138 Main St, Sag Harbor 11963 | (631) 725-0200 |
| Real Estate Strategies Llc 51 Division St, Sag Harbor 11963 | (631) 725-8900 |
| Stephen H Schuster 57 Noyac Harbor Rd, Sag Harbor 11963 | (631) 725-5060 |