| Business | Phone |
| Advanced Environmental Mgmt 2722 Simpson Cir, Norcross 30071 | (770) 242-8282 |
| Advanced Engineering Tech 6055 Atlantic Blvd, Norcross 30071 | (770) 729-1258 |
| Klotz Digital 3100 Northwoods Pl, Norcross 30071 | (770) 582-9913 |
| Acr Engineering Inc 3060 Holcomb Bridge Rd, Norcross 30071 | (678) 291-0000 |
| Iteris 5151 Brook Hollow Pkwy, Norcross 30071 | (770) 613-9558 |
| Dsi 3500 Parkway Ln 500, Norcross 30092 | (770) 248-9997 |
| Focalpoint Engineering Inc 1254 Beaver Ruin Rd, Norcross 30093 | (770) 931-5920 |
| Pharr Engineering Inc 5950 Live Oak Pkwy, Norcross 30093 | (770) 447-6400 |
| Professional Construction Mgmt 1351 Oakbrook Dr 130, Norcross 30093 | (770) 246-0067 |