| Business | Phone |
| A Executive Management 135 W Main St, Smithtown 11787 | (631) 584-3314 |
| Alpha Management Corp 1050 W Jericho Tpke, Smithtown 11787 | (631) 543-6227 |
| Proseperity Management Cnsltng 22 Lawrence Ave # 213, Smithtown 11787 | (631) 382-7762 |
| Smithtown Business Svc 10 Graystone Ln, Smithtown 11787 | (631) 265-0100 |
| Usv Enterprises 123 Nadia Ct, Smithtown 11787 | (631) 473-2343 |