| Business | Phone |
| Bmh Communications Inc 4070 Amanda Ln, Cumming 30040 | (678) 341-7200 |
| Communications Center Inc 3260 Keith Bridge Rd, Cumming 30041 | (770) 781-5000 |
| Cwa Systems & Solutions 505 Industrial Way, Cumming 30040 | (770) 753-7900 |
| Ets Communications Inc 327 Dahlonega St, Cumming 30040 | (770) 476-7780 |