| System Name | Type | City |
|---|---|---|
| Baltimore Gas and Electric | iDEN Harmony | Various |
| Choptank Electric Cooperative | DMR Motorola Connect Plus (TRBO) | Various |
| Exelon Energy P25 | Project 25 Phase I | Regional |
| First Responders Interoperable Radio System Team (FIRST) | Project 25 Phase II | Various |
| FleetCall | NXDN NEXEDGE 4800 | Various |
| Hollywood Casino Perryville | DMR Motorola Capacity Plus Single Site (TRBO) | Perryville |
| Mid-Atlantic Digital Radio Network | DMR Motorola Connect Plus (TRBO) | Various |
