| Business | Phone |
| A P Labs Inc 370 Winkler Dr C, Alpharetta 30004 | (678) 205-1004 |
| Troxell Communications 12850 Highway 9 N # 600-383, Alpharetta 30004 | (770) 457-4273 |
| Site Specific Systems Ltd 12460 Crabapple Rd, Alpharetta 30004 | (770) 345-0644 |
| Letotech Inc 11715 Ridgegate Run, Alpharetta 30005 | (770) 754-1046 |