| System Name | Type | City |
|---|---|---|
| Oak Ridge National Laboratory | Project 25 Phase II | Oak Ridge |
| Tennessee Advanced Communications Network (TACN) | Project 25 Phase II | Various |
| Tennessee BrandMeister Network | DMR Conventional Networked | Various |
| Tennessee Valley Authority - Power Production | Project 25 Phase I | Various |
| Tennessee Valley Authority - Security and Emergency Management | Project 25 Phase II | Various |
