| Business | Phone |
| Hayes James & Assoc Inc 4145 Shackleford Rd 300, Norcross 30093 | (770) 923-1600 |
| Travis Pruitt & Assocs Inc 4317 Park Dr 400, Norcross 30093 | (770) 416-7511 |
| Simpson Engineering Assoc 5018 Bridgeport Way, Norcross 30092 | (770) 449-0330 |
| Q B Engineering & Surveying 517 S Cemetery St, Norcross 30071 | (770) 449-8623 |
| Planners & Engineers Collbrtv 350 Research Ct, Norcross 30092 | (770) 451-2741 |
| Moreland Altobelli Assoc Inc 2211 Beaver Ruin Rd 190, Norcross 30071 | (770) 263-5945 |
| Mansur Engineering Inc Civil 6065 Atlantic Blvd J, Norcross 30071 | (770) 734-0075 |