| Business | Phone |
| A-C Electrical Supply Inc 741 Smithtown Byp, Smithtown 11787 | (631) 265-2252 |
| Avl Components Intl 1038 W Jericho Tpke, Smithtown 11787 | (631) 864-7850 |
| Avl Components Intl 924 W Jericho Tpke, Smithtown 11787 | (631) 979-4114 |
| D Berman & Sons 811 Jericho Tpke, Smithtown 11787 | (631) 863-1666 |