| Business | Phone |
| Deca Environmental & Assoc 510 3rd Ave Sw, Carmel 46032 | (765) 778-3135 |
| Environmental Management Group 11350 N Meridian St, Carmel 46032 | (317) 575-0584 |
| Erm 11350 N Meridian St # 220, Carmel 46032 | (317) 706-2000 |
| Myers Environmental Inc 597 Industrial Dr # 103, Carmel 46032 | (317) 818-9836 |
| Retec Group 879 W Carmel Dr, Carmel 46032 | (317) 843-0008 |