| Business | Phone |
| Texas Curb Cut Inc 18975 Marbach Ln, Austin 78704 | (512) 447-4477 |
| Bulldog Coring & Concor Austin 78758 | (512) 837-3904 |
| A-1 Coring Po Box 80174, Austin 78708 | (512) 251-0292 |
| Austex Drilling & Sawing Inc 515 Thompson Ln, Austin 78742 | (512) 385-7695 |