| Business | Phone |
| Chattahoochee Consulting Group 5871 New Peachtree Rd, Atlanta 30340 | (770) 457-9776 |
| Dangar Consulting Group Inc 2694 Northbrook Dr, Atlanta 30340 | (770) 938-2892 |
| Willmer Engineering Inc 3772 Pleasantdale Rd 165, Atlanta 30340 | (770) 939-0089 |
| Giles Engineering Assoc Inc 3990 Flowers Rd 530, Atlanta 30360 | (770) 458-3399 |
| Ward Engineering Testing Inc 196 15th St Nw, Atlanta 30318 | (404) 872-1132 |
| Urban Testing & Environmental 5580 Tulane Dr Sw # C, Atlanta 30336 | (404) 691-2439 |
| Georgia Geotechnical Llc 1567 Peachtree Battle Ave Nw, Atlanta 30327 | (404) 367-5400 |