| Business | Phone |
| Aerostar Environmental Svc 3781 Presidential Pkwy 115, Atlanta 30340 | (770) 986-7734 |
| Atlanta Environmental Mgmt 2580 Northeast Expy Ne, Atlanta 30345 | (404) 329-9006 |
| Ensr Corp 3645 Chamblee Tucker Rd, Atlanta 30341 | (678) 937-9161 |
| Environmental Strategies Corp 5001 Peachtree Industrial Blvd, Atlanta 30341 | (770) 458-5252 |
| Roux Associates Inc 3301 Buckeye Rd 311, Atlanta 30341 | (770) 986-9711 |
| Applies Technology & Mgmt 3350 Riverwood Pkwy Se 2070, Atlanta 30339 | (770) 850-4960 |
| Cerm 2115 Monroe Dr Ne, Atlanta 30324 | (678) 999-0173 |
| Ch2m Hill 115 Perimeter Center Pl Ne, Atlanta 30346 | (770) 604-9095 |
| Dames & Moore 235 Peachtree St Ne, Atlanta 30303 | (404) 577-2122 |
| Environmental Design Intl Ltd 180 Interstate N Pkwy Se 300, Atlanta 30339 | (770) 956-7000 |
| Wwetco 800 Lambert Dr Ne, Atlanta 30324 | (404) 874-5008 |
| Rmt Inc 8607 Roberts Dr 100, Atlanta 30350 | (770) 641-9756 |
| Parallax Inc 340 Interstate N Pkwy Se # 450, Atlanta 30339 | (770) 955-2008 |
| Millennium Science & Engnrng 6145 Barfield Rd Ne 110, Atlanta 30328 | (404) 843-4450 |
| Mactec 396 Plasters Ave Ne, Atlanta 30324 | (404) 873-4761 |