| Business | Phone |
| Dynamic Specialties 15255 Gulf Fwy, Houston 77034 | (281) 922-9959 |
| Engineered Air Balance Co 222 Pennbright Dr 110, Houston 77090 | (281) 873-7084 |
| Mesah Commissioning Inc 5920 Allday Dr, Houston 77036 | (713) 785-9021 |
| Hvac Systems Balancing 11403 Grapewood Dr, Houston 77089 | (281) 481-2100 |