| Business | Phone |
| Advanced Engineering Techs 3235 Satellite Blvd # 300, Duluth 30096 | (770) 409-7880 |
| Afl Network Svc 2222 Northmont Pkwy, Duluth 30096 | (770) 923-0304 |
| Engineered Media Solutions 3840 Stonebriar Ct, Duluth 30097 | (770) 623-9185 |
| Engineering Consultants Svc 3820 Satellite Blvd, Duluth 30096 | (770) 623-0353 |
| Telcom Strategies Group 4967 Dillards Mill Way, Duluth 30096 | (770) 416-6505 |
| Sigma Control Systems Inc 2932 Hunting Wood Walk, Duluth 30096 | (770) 813-9966 |
| Riley Park Hayden & Assoc 3005 Breckinridge Blvd 240, Duluth 30096 | (678) 380-9170 |
| Power Lab 7475 Brookstead Xing, Duluth 30097 | (770) 622-4245 |
| Lauren Engineer Constructors 3675 Crestwood Pkwy Nw 400, Duluth 30096 | (770) 935-6016 |
| I Engineering 3069 Peachtree Industrial Blvd, Duluth 30097 | (770) 622-2141 |