| Business | Phone |
| Hub Scott Assoc Inc 6666 Harwin Dr, Houston 77036 | (713) 789-5800 |
| Advanced Duct Systems Inc 6125 W Sam Houston Pkwy N 101, Houston 77041 | (713) 466-9595 |
| Amber Booth Co 11930 Brittmoore Park Dr, Houston 77041 | (713) 466-0003 |
| Emco Wheaton 9111 Jackrabbit Rd, Houston 77095 | (281) 856-1300 |
| Forrest Manufacturing Co 2825 W 11th St, Houston 77008 | (713) 864-2545 |
| Merichem Chemicals & Refinery 5455 Old Spanish Trl, Houston 77023 | (713) 428-5000 |
| Gosco Equipment Inc 11402 Sagecanyon Dr, Houston 77089 | (281) 484-1523 |
| Hammonds Technical Svc Inc 910 Rankin Rd, Houston 77073 | (281) 999-2900 |
| Jetstream Of Houston Llp 4930 Cranswick Rd, Houston 77041 | (713) 462-7000 |
| National Well Supplies 1625 Brittmoore Rd, Houston 77043 | (713) 467-0462 |