| Business | Phone |
| Maiella Associate Inc 803 Main St, Port Jefferson 11777 | (631) 331-2525 |
| Eugene Donohue Assoc 662 Main St, Port Jefferson 11777 | (631) 331-4706 |
| Peter M Fischer Terryville Rd, Port Jefferson 11777 | (631) 331-8666 |
| Insurance Office 320 Main St, Port Jefferson 11777 | (631) 476-1780 |
| Insurance Plans Of New York 320 Main St, Port Jefferson 11777 | (631) 473-5030 |
| L I Network Insurance 202 Main St, Port Jefferson 11777 | (631) 474-3190 |
| Seaport Worldwide Assoc Inc 407 E Main St, Port Jefferson 11777 | (631) 331-5892 |
| William C Manus Agency Inc 1000 Main St, Port Jefferson 11777 | (631) 474-8900 |