| Business | Phone |
| Ensr Intl 505 S Gila St, Yuma 85364 | (928) 782-1288 |
| Environmental Technology 1600 S Avenue B, Yuma 85364 | (928) 329-0036 |
| Kleinfelder 2896 E 16th St # D, Yuma 85365 | (928) 317-9126 |
| Riverside Environmental Svc 4885 W Riverside Dr, Yuma 85364 | (928) 783-3803 |