| Business | Phone |
| A G & E Assoc Pllc 3616 Maple Ave, Dallas 75219 | (214) 520-7202 |
| Zijderveld Engineers 11838 Cromwell Dr, Dallas 75234 | (972) 620-8282 |
| Hunt & Joiner Inc 1825 Market Center Blvd 620, Dallas 75207 | (214) 760-7000 |
| Campbell & Assoc Consulting 4131 N Central Expy 900, Dallas 75204 | (214) 559-2600 |