| Business | Phone |
| Formscan Inc 199 E Main St, Smithtown 11787 | (631) 361-5021 |
| Performance Support Inc 111 Brooksite Dr, Smithtown 11787 | (631) 979-3100 |
| Sandalwood Software Inc 9 Magnolia Ln, Smithtown 11787 | (631) 265-8932 |
| Seagate Software Smithtown 11787 | (631) 265-9304 |
| Symantec Corp 17 Chelsea Dr, Smithtown 11787 | (631) 265-2213 |