| Business | Phone |
| Magnum Enterprises Inc 39 View Rd, Setauket 11733 | (631) 462-0141 |
| Comtech Networks Ltd 9 Maple Rd, Setauket 11733 | (631) 941-9400 |
| Excellence By Design 2 Treasure Ln, Setauket 11733 | (631) 941-3030 |
| Plain Ring 8 Cedar Ln, Setauket 11733 | (631) 689-1470 |
| Id Cware Inc 24 Brandywine Dr, Setauket 11733 | (631) 751-3021 |
| Jaeger Helmut 28 Brewster Ln E, Setauket 11733 | (631) 751-6717 |
| Kardovich Richard C Dds Pc 23 View Rd, Setauket 11733 | (631) 751-5045 |
| Stirling Creek Assoc Inc 22 View Rd, Setauket 11733 | (631) 751-1331 |
| Wander & Wander 19 Schooner Cv, Setauket 11733 | (631) 246-8768 |