| Business | Phone |
| Dickensheets Design Assoc 12335 Hymeadow Dr 200, Austin 78750 | (512) 331-8977 |
| Engineered Vibration Acoustic 5806 Mesa Dr # 380, Austin 78731 | (512) 371-0800 |
| Accoustic Systems 415 E Saint Elmo Rd, Austin 78745 | (512) 326-2737 |
| Jeacustics 1705 W Koenig Ln, Austin 78756 | (512) 371-0800 |
| Mc Keown Intl Inc 306 Malabar St, Austin 78734 | (512) 261-2200 |
| Bai 4006 Speedway, Austin 78751 | (512) 476-3464 |