| Business | Phone |
| Dunegan Engineering Co Inc 10113 W County Road 150, Midland 79706 | (432) 561-5901 |
| Ed Runyan Petroleum Engineer 3100 N A St B-20, Midland 79705 | (432) 682-7375 |
| Kleinfelder 8004 W Highway 80, Midland 79706 | (432) 563-1100 |
| Adam Praisnar Jr Pe 30 W Industrial Loop M, Midland 79701 | (432) 570-6514 |
| Hbc/Terracon 110 W Louisiana Ave 300, Midland 79701 | (432) 684-9600 |
| James B Henry 414 W Texas Ave, Midland 79701 | (432) 686-1832 |
| Ncg 600 N Marienfeld St, Midland 79701 | (432) 687-1087 |
| Crim & Bradshaw Engineering 4400 N Big Spring St, Midland 79705 | (432) 682-4400 |