| Business | Phone |
| American Express Financial 222 Middle Country Rd, Smithtown 11787 | (631) 724-3838 |
| Ben Rappa Financial Svc 1020 W Jericho Tpke # 209, Smithtown 11787 | (631) 543-4610 |
| Capital Securities 180 E Main St, Smithtown 11787 | (631) 265-0200 |
| Cellen Financial Northwestern 222 Middle Country Rd # 109, Smithtown 11787 | (631) 724-7280 |
| Interface Financial Group 6 Walnut St, Smithtown 11787 | (631) 265-6122 |
| Raymond James Financial Svc 186 W Main St, Smithtown 11787 | (631) 265-4488 |
| Southernstar Home Mortgage 135 W Main St, Smithtown 11787 | (631) 360-0294 |
| Sterling Financial Svc Co Inc 20 Gilbert Ave, Smithtown 11787 | (631) 863-3100 |
| Vested Business Brokers Inc 50 Karl Ave # 102, Smithtown 11787 | (631) 265-7300 |