| Business | Phone |
| Geotechnical Environmental Inc 2410 Squire Pl E, Dallas 75234 | (469) 621-0585 |
| Aquaflo Drainage Systems Dallas 75254 | (972) 391-8852 |
| Texas Quality Drilling 7275 Envoy Ct, Dallas 75247 | (214) 819-9441 |
| A & L Foundation Drainage Co 4720 Stonehollow Way, Dallas 75287 | (972) 818-1931 |
| Weber Energy Corp 200 Crescent Ct 1801, Dallas 75201 | (214) 855-8990 |
| Brown Mole Directional Drill 1376 Highland Rd, Dallas 75218 | (972) 977-4750 |