| Business | Phone |
| Montauk Mortgage Co Inc 8 Royal Oak Way, Montauk 11954 | (631) 668-3400 |
| Mortgage One 649 Montauk Hwy, Montauk 11954 | (631) 668-3343 |
| E Island Mortgage Co 158 Edgemere St, Montauk 11954 | (631) 668-5452 |
| Preferred Empire Mortgage 2488 Montauk Hwy, Montauk 11954 | (631) 537-7344 |