| System Name | Type | City |
|---|---|---|
| American Electric Power (AEP) P25 | Project 25 Phase II | Various |
| Marion City Schools | DMR Conventional Networked | Marion |
| Marion County | LTR Standard | Marion |
| Ohio MARCS-IP: Multi-Agency Radio Communications | Project 25 Phase I | Statewide |
| POET Biorefining | DMR Conventional Networked | Marion |
| Union Tank Car | DMR Conventional Networked | Marion |
| Wenigs, Inc. | DMR Conventional Networked | Marion |
