| Business | Phone |
| Redd Mcdonald Mfg Inc 6320 Georgia Highway 400, Cumming 30040 | (770) 889-5900 |
| Satellite Industries 7010 Derby Trl, Cumming 30040 | (912) 538-0670 |
| Charles Wolfe & Assoc 2660 Friendship School Rd, Cumming 30040 | (770) 889-9299 |
| Dacindustries Inc 6030 Bethelview Rd, Cumming 30040 | (404) 791-2971 |
| Sdm Scraleon Design & Mfg 1465 Ventura Dr, Cumming 30040 | (678) 845-2002 |
| Metso Mineral Industries 8040 Garden Oak Ct, Cumming 30041 | (770) 889-5354 |