| Business | Phone |
| Teltronics Inc 104 Townpark Dr Nw, Kennesaw 30144 | (678) 581-8040 |
| E On Communications Corp 4105 Royal Dr Nw 100, Kennesaw 30144 | (770) 423-2200 |
| Energy Products 1590 N Roberts Rd Nw, Kennesaw 30144 | (770) 794-6597 |
| Satimo 2105 Barrett Park Dr Nw 104, Kennesaw 30144 | (678) 797-9172 |