| System Name | Type | City |
|---|---|---|
| American Electric Power (AEP) P25 | Project 25 Phase II | Various |
| BearCom (South Texas NexEdge) | NXDN NEXEDGE 4800 | Various |
| Coastal Bend Regional Interoperability Network | Project 25 Phase II | Varies |
| Exxon Mobil | Project 25 Phase II | Various |
| Four County Coastal Bend Interoperational System | EDACS Networked Standard | Corpus Christi |
| Occidental Chemical | LTR Standard | Gregory |
