| Business | Phone |
| Long Island Svc Co 369 E Main St # 13, East Islip 11730 | (631) 277-2726 |
| David G Christophel Cpa 96 E Main St, East Islip 11730 | (631) 859-1481 |
| Jones & Little 86 W Main St, East Islip 11730 | (631) 277-8500 |
| Lawrence J Kaplan Cpa 7 Deer Run, East Islip 11730 | (631) 859-3759 |
| Lawrence J Kaplan Accounting 10 E Main St # 189, East Islip 11730 | (631) 859-3759 |
| William J Dowler Inc 164 E Main St, East Islip 11730 | (631) 581-0735 |