| System Name | Type | City |
|---|---|---|
| Caterpillar Corporation (DMR) | DMR Motorola Connect Plus (TRBO) | Decatur |
| Clear Talk (CapMax) | DMR Tier 3 Capacity Max | Multiple |
| Clear Talk (Connect Plus) | DMR Motorola Connect Plus (TRBO) | Areawide |
| ComEd | Project 25 Phase I | Northern IL |
| Diga-Talk | NXDN NEXEDGE 4800 | Various |
| STARCOM21 Statewide Illinois | Project 25 Phase II | Statewide |
