| Business | Phone |
| Drash Consulting Engineers Inc 6911 Blanco Rd, San Antonio 78216 | (210) 641-2112 |
| Geotechnical Consultants Inc 11918 Warfield St, San Antonio 78216 | (210) 344-8144 |
| Arias & Associates 142 Chula Vista Dr, San Antonio 78232 | (210) 308-5884 |
| Fugro 11009 Osgood St, San Antonio 78233 | (210) 655-9516 |
| Nova Consulting Group Inc 14220 Northbrook Dr 300, San Antonio 78232 | (210) 402-3102 |