| Business | Phone |
| Allied Environmental 3675 Crestwood Pkwy Nw, Duluth 30096 | (770) 935-6100 |
| Allied Environmental Solutions Duluth 30096 | (770) 291-2136 |
| Aveda Environmental Lifestyle 2100 Pleasant Hill Rd, Duluth 30096 | (678) 957-0515 |
| Tetra Tech Inc 1955 Evergreen Blvd # 300, Duluth 30096 | (678) 775-3080 |