| Business | Phone |
| Advantage Water Mgmt Bus Ofc 9601 Jones Rd, Houston 77065 | (281) 807-9507 |
| Azurix North America Inc 419 Century Plaza Dr # 250, Houston 77073 | (713) 316-5000 |
| Memorial Villages Water Auth 11 1/2 Farnham Park Dr, Houston 77024 | (713) 974-6606 |