| Business | Phone |
| Jrp Design Solution 4556 Walden Farm Ct, Powder Springs 30127 | (770) 633-5446 |
| Paul Lee Consltng Engrg Assoc 3982 Austell Powder Springs Rd, Powder Springs 30127 | (770) 943-6494 |
| Paul Lee Consltng Engrg Assoc 1600 Hunt Dr, Powder Springs 61761 | (309) 454-5521 |