| Business | Phone |
| Corporate Knight Svc 1001 Mckinney St 750, Houston 77002 | (832) 200-5200 |
| Utility Coordinating Committee Houston 77002 | (713) 223-4567 |
| Smp Utility Resources Inc 15403 Vantage Pkwy E, Houston 77032 | (281) 987-2140 |
| Smart Power Sys Inc 1760 Stebbins Dr, Houston 77043 | (713) 464-8000 |
| Priority Power Management 1414 Antoine Dr, Houston 77055 | (713) 956-0056 |
| North Park Public Utility Dist 112 Bammel Rd, Houston 77090 | (281) 443-7314 |
| Sendero Industries Llc 6814 Thornwall St, Houston 77092 | (713) 868-6960 |
| Utili Quest 8515 Jackrabbit Rd R, Houston 77095 | (281) 859-6450 |
| Raab Karcher Energy Svc Houston 77098 | (713) 807-7172 |
| Stanley Development 1330 Blue Bell Rd, Houston 77038 | (281) 447-3643 |
| Texas One Call 8227 Middlebury Ln, Houston 77070 | (281) 970-0505 |
| Utility Revenue Management 3334 Richmond Ave 215, Houston 77098 | (713) 956-1006 |